/home/ben/Projects/got/tog/tog.c

Bug Summary

File:	tog/tog.c
Warning:	line 2510, column 23 Access to field 'focussed' results in a dereference of a null pointer (loaded from variable 'tree_view')
Annotated Source Code

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clang -cc1 -cc1 -triple amd64-unknown-openbsd6.9 -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name tog.c -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 1 -pic-is-pie -mframe-pointer=all -relaxed-aliasing -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -target-feature +retpoline-indirect-calls -target-feature +retpoline-indirect-branches -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/local/lib/clang/11.1.0 -I /home/ben/Projects/got/tog/../include -I /home/ben/Projects/got/tog/../lib -D GOT_LIBEXECDIR=/home/ben/bin -D GOT_VERSION=0.53-current -internal-isystem /usr/local/lib/clang/11.1.0/include -internal-externc-isystem /usr/include -O0 -fdebug-compilation-dir /home/ben/Projects/got/tog/obj -ferror-limit 19 -fwrapv -D_RET_PROTECTOR -ret-protector -fgnuc-version=4.2.1 -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-valloc -fno-builtin-free -fno-builtin-strdup -fno-builtin-strndup -analyzer-output=html -faddrsig -o /home/ben/Projects/got/scan/2021-05-28-230913-68537-1 -x c /home/ben/Projects/got/tog/tog.c
1/*
* Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/

17#include <sys/queue.h>
18#include <sys/stat.h>
19#include <sys/ioctl.h>

21#include <ctype.h>
22#include <errno(*__errno()).h>
23#define _XOPEN_SOURCE_EXTENDED
24#include <curses.h>
25#undef _XOPEN_SOURCE_EXTENDED
26#include <panel.h>
27#include <locale.h>
28#include <signal.h>
29#include <stdlib.h>
30#include <stdarg.h>
31#include <stdio.h>
32#include <getopt.h>
33#include <string.h>
34#include <err.h>
35#include <unistd.h>
36#include <limits.h>
37#include <wchar.h>
38#include <time.h>
39#include <pthread.h>
40#include <libgen.h>
41#include <regex.h>

43#include "got_version.h"
44#include "got_error.h"
45#include "got_object.h"
46#include "got_reference.h"
47#include "got_repository.h"
48#include "got_diff.h"
49#include "got_opentemp.h"
50#include "got_utf8.h"
51#include "got_cancel.h"
52#include "got_commit_graph.h"
53#include "got_blame.h"
54#include "got_privsep.h"
55#include "got_path.h"
56#include "got_worktree.h"

58#ifndef MIN
59#define	MIN(_a,_b)((_a) < (_b) ? (_a) : (_b)) ((_a) < (_b) ? (_a) : (_b))
60#endif

62#ifndef MAX
63#define	MAX(_a,_b)((_a) > (_b) ? (_a) : (_b)) ((_a) > (_b) ? (_a) : (_b))
64#endif

66#define CTRL(x)((x) & 0x1f)		((x) & 0x1f)

68#ifndef nitems
69#define nitems(_a)(sizeof((_a)) / sizeof((_a)[0]))	(sizeof((_a)) / sizeof((_a)[0]))
70#endif

72struct tog_cmd {
const char *name;
const struct got_error *(*cmd_main)(int, char *[]);
void (*cmd_usage)(void);
76};

78__dead__attribute__((__noreturn__)) static void	usage(int, int);
79__dead__attribute__((__noreturn__)) static void	usage_log(void);
80__dead__attribute__((__noreturn__)) static void	usage_diff(void);
81__dead__attribute__((__noreturn__)) static void	usage_blame(void);
82__dead__attribute__((__noreturn__)) static void	usage_tree(void);
83__dead__attribute__((__noreturn__)) static void	usage_ref(void);

85static const struct got_error*	cmd_log(int, char *[]);
86static const struct got_error*	cmd_diff(int, char *[]);
87static const struct got_error*	cmd_blame(int, char *[]);
88static const struct got_error*	cmd_tree(int, char *[]);
89static const struct got_error*	cmd_ref(int, char *[]);

91static struct tog_cmd tog_commands[] = {
{ "log",	cmd_log,	usage_log },
{ "diff",	cmd_diff,	usage_diff },
{ "blame",	cmd_blame,	usage_blame },
{ "tree",	cmd_tree,	usage_tree },
{ "ref",	cmd_ref,	usage_ref },
97};

99enum tog_view_type {
TOG_VIEW_DIFF,
TOG_VIEW_LOG,
TOG_VIEW_BLAME,
TOG_VIEW_TREE,
TOG_VIEW_REF,
105};

107#define TOG_EOF_STRING"(END)"	"(END)"

109struct commit_queue_entry {
TAILQ_ENTRY(commit_queue_entry)struct { struct commit_queue_entry *tqe_next; struct commit_queue_entry
 **tqe_prev; } entry;
struct got_object_id *id;
struct got_commit_object *commit;
int idx;
114};
115TAILQ_HEAD(commit_queue_head, commit_queue_entry)struct commit_queue_head { struct commit_queue_entry *tqh_first
; struct commit_queue_entry **tqh_last; };
116struct commit_queue {
int ncommits;
struct commit_queue_head head;
119};

121struct tog_color {
SIMPLEQ_ENTRY(tog_color)struct { struct tog_color *sqe_next; } entry;
regex_t regex;
short colorpair;
125};
126SIMPLEQ_HEAD(tog_colors, tog_color)struct tog_colors { struct tog_color *sqh_first; struct tog_color
 **sqh_last; };

128static struct got_reflist_head tog_refs = TAILQ_HEAD_INITIALIZER(tog_refs){ ((void*)0), &(tog_refs).tqh_first };
129static struct got_reflist_object_id_map *tog_refs_idmap;

131static const struct got_error *
132tog_load_refs(struct got_repository *repo)
133{
const struct got_error *err;

err = got_ref_list(&tog_refs, repo, NULL((void*)0), got_ref_cmp_by_name, NULL((void*)0));
if (err)
return err;

return got_reflist_object_id_map_create(&tog_refs_idmap, &tog_refs,
   repo);
142}

144static void
145tog_free_refs(void)
146{
if (tog_refs_idmap) {
got_reflist_object_id_map_free(tog_refs_idmap);
tog_refs_idmap = NULL((void*)0);
}
got_ref_list_free(&tog_refs);
152}

154static const struct got_error *
155add_color(struct tog_colors *colors, const char *pattern,
  int idx, short color)
157{
const struct got_error *err = NULL((void*)0);
struct tog_color *tc;
int regerr = 0;

if (idx < 1 || idx > COLOR_PAIRS - 1)
return NULL((void*)0);

init_pair(idx, color, -1);

tc = calloc(1, sizeof(*tc));
if (tc == NULL((void*)0))
return got_error_from_errno("calloc");
regerr = regcomp(&tc->regex, pattern,
   REG_EXTENDED0001 | REG_NOSUB0004 | REG_NEWLINE0010);
if (regerr) {
static char regerr_msg[512];
static char err_msg[512];
regerror(regerr, &tc->regex, regerr_msg,
    sizeof(regerr_msg));
snprintf(err_msg, sizeof(err_msg), "regcomp: %s",
    regerr_msg);
err = got_error_msg(GOT_ERR_REGEX112, err_msg);
free(tc);
return err;
}
tc->colorpair = idx;
SIMPLEQ_INSERT_HEAD(colors, tc, entry)do { if (((tc)->entry.sqe_next = (colors)->sqh_first) ==
 ((void*)0)) (colors)->sqh_last = &(tc)->entry.sqe_next
; (colors)->sqh_first = (tc); } while (0);
return NULL((void*)0);
186}

188static void
189free_colors(struct tog_colors *colors)
190{
struct tog_color *tc;

while (!SIMPLEQ_EMPTY(colors)(((colors)->sqh_first) == ((void*)0))) {
tc = SIMPLEQ_FIRST(colors)((colors)->sqh_first);
SIMPLEQ_REMOVE_HEAD(colors, entry)do { if (((colors)->sqh_first = (colors)->sqh_first->
entry.sqe_next) == ((void*)0)) (colors)->sqh_last = &(
colors)->sqh_first; } while (0);
regfree(&tc->regex);
free(tc);
}
199}

201struct tog_color *
202get_color(struct tog_colors *colors, int colorpair)
203{
struct tog_color *tc = NULL((void*)0);

SIMPLEQ_FOREACH(tc, colors, entry)for((tc) = ((colors)->sqh_first); (tc) != ((void*)0); (tc)
 = ((tc)->entry.sqe_next)) {
if (tc->colorpair == colorpair)
	return tc;
}

return NULL((void*)0);
212}

214static int
215default_color_value(const char *envvar)
216{
if (strcmp(envvar, "TOG_COLOR_DIFF_MINUS") == 0)
return COLOR_MAGENTA5;
if (strcmp(envvar, "TOG_COLOR_DIFF_PLUS") == 0)
return COLOR_CYAN6;
if (strcmp(envvar, "TOG_COLOR_DIFF_CHUNK_HEADER") == 0)
return COLOR_YELLOW3;
if (strcmp(envvar, "TOG_COLOR_DIFF_META") == 0)
return COLOR_GREEN2;
if (strcmp(envvar, "TOG_COLOR_TREE_SUBMODULE") == 0)
return COLOR_MAGENTA5;
if (strcmp(envvar, "TOG_COLOR_TREE_SYMLINK") == 0)
return COLOR_MAGENTA5;
if (strcmp(envvar, "TOG_COLOR_TREE_DIRECTORY") == 0)
return COLOR_CYAN6;
if (strcmp(envvar, "TOG_COLOR_TREE_EXECUTABLE") == 0)
return COLOR_GREEN2;
if (strcmp(envvar, "TOG_COLOR_COMMIT") == 0)
return COLOR_GREEN2;
if (strcmp(envvar, "TOG_COLOR_AUTHOR") == 0)
return COLOR_CYAN6;
if (strcmp(envvar, "TOG_COLOR_DATE") == 0)
return COLOR_YELLOW3;
if (strcmp(envvar, "TOG_COLOR_REFS_HEADS") == 0)
return COLOR_GREEN2;
if (strcmp(envvar, "TOG_COLOR_REFS_TAGS") == 0)
return COLOR_MAGENTA5;
if (strcmp(envvar, "TOG_COLOR_REFS_REMOTES") == 0)
return COLOR_YELLOW3;

return -1;
247}

249static int
250get_color_value(const char *envvar)
251{
const char *val = getenv(envvar);

if (val == NULL((void*)0))
return default_color_value(envvar);

if (strcasecmp(val, "black") == 0)
return COLOR_BLACK0;
if (strcasecmp(val, "red") == 0)
return COLOR_RED1;
if (strcasecmp(val, "green") == 0)
return COLOR_GREEN2;
if (strcasecmp(val, "yellow") == 0)
return COLOR_YELLOW3;
if (strcasecmp(val, "blue") == 0)
return COLOR_BLUE4;
if (strcasecmp(val, "magenta") == 0)
return COLOR_MAGENTA5;
if (strcasecmp(val, "cyan") == 0)
return COLOR_CYAN6;
if (strcasecmp(val, "white") == 0)
return COLOR_WHITE7;
if (strcasecmp(val, "default") == 0)
return -1;

return default_color_value(envvar);
277}


280struct tog_diff_view_state {
struct got_object_id *id1, *id2;
const char *label1, *label2;
FILE *f;
int first_displayed_line;
int last_displayed_line;
int eof;
int diff_context;
int ignore_whitespace;
int force_text_diff;
struct got_repository *repo;
struct tog_colors colors;
size_t nlines;
off_t *line_offsets;
int matched_line;
int selected_line;

/* passed from log view; may be NULL */
struct tog_view *log_view;
299};

301pthread_mutex_t tog_mutex = PTHREAD_MUTEX_INITIALIZER((void*)0);

303struct tog_log_thread_args {
pthread_cond_t need_commits;
pthread_cond_t commit_loaded;
int commits_needed;
struct got_commit_graph *graph;
struct commit_queue *commits;
const char *in_repo_path;
struct got_object_id *start_id;
struct got_repository *repo;
int log_complete;
sig_atomic_t *quit;
struct commit_queue_entry **first_displayed_entry;
struct commit_queue_entry **selected_entry;
int *searching;
int *search_next_done;
regex_t *regex;
319};

321struct tog_log_view_state {
struct commit_queue commits;
struct commit_queue_entry *first_displayed_entry;
struct commit_queue_entry *last_displayed_entry;
struct commit_queue_entry *selected_entry;
int selected;
char *in_repo_path;
char *head_ref_name;
int log_branches;
struct got_repository *repo;
struct got_object_id *start_id;
sig_atomic_t quit;
pthread_t thread;
struct tog_log_thread_args thread_args;
struct commit_queue_entry *matched_entry;
struct commit_queue_entry *search_entry;
struct tog_colors colors;
338};

340#define TOG_COLOR_DIFF_MINUS1		1
341#define TOG_COLOR_DIFF_PLUS2		2
342#define TOG_COLOR_DIFF_CHUNK_HEADER3	3
343#define TOG_COLOR_DIFF_META4		4
344#define TOG_COLOR_TREE_SUBMODULE5	5
345#define TOG_COLOR_TREE_SYMLINK6		6
346#define TOG_COLOR_TREE_DIRECTORY7	7
347#define TOG_COLOR_TREE_EXECUTABLE8	8
348#define TOG_COLOR_COMMIT9		9
349#define TOG_COLOR_AUTHOR10		10
350#define TOG_COLOR_DATE11			11
351#define TOG_COLOR_REFS_HEADS12		12
352#define TOG_COLOR_REFS_TAGS13		13
353#define TOG_COLOR_REFS_REMOTES14		14

355struct tog_blame_cb_args {
struct tog_blame_line *lines; /* one per line */
int nlines;

struct tog_view *view;
struct got_object_id *commit_id;
int *quit;
362};

364struct tog_blame_thread_args {
const char *path;
struct got_repository *repo;
struct tog_blame_cb_args *cb_args;
int *complete;
got_cancel_cb cancel_cb;
void *cancel_arg;
371};

373struct tog_blame {
FILE *f;
off_t filesize;
struct tog_blame_line *lines;
int nlines;
off_t *line_offsets;
pthread_t thread;
struct tog_blame_thread_args thread_args;
struct tog_blame_cb_args cb_args;
const char *path;
383};

385struct tog_blame_view_state {
int first_displayed_line;
int last_displayed_line;
int selected_line;
int blame_complete;
int eof;
int done;
struct got_object_id_queue blamed_commits;
struct got_object_qid *blamed_commit;
char *path;
struct got_repository *repo;
struct got_object_id *commit_id;
struct tog_blame blame;
int matched_line;
struct tog_colors colors;
400};

402struct tog_parent_tree {
TAILQ_ENTRY(tog_parent_tree)struct { struct tog_parent_tree *tqe_next; struct tog_parent_tree
 **tqe_prev; } entry;
struct got_tree_object *tree;
struct got_tree_entry *first_displayed_entry;
struct got_tree_entry *selected_entry;
int selected;
408};

410TAILQ_HEAD(tog_parent_trees, tog_parent_tree)struct tog_parent_trees { struct tog_parent_tree *tqh_first; struct
 tog_parent_tree **tqh_last; };

412struct tog_tree_view_state {
char *tree_label;
struct got_tree_object *root;
struct got_tree_object *tree;
struct got_tree_entry *first_displayed_entry;
struct got_tree_entry *last_displayed_entry;
struct got_tree_entry *selected_entry;
int ndisplayed, selected, show_ids;
struct tog_parent_trees parents;
struct got_object_id *commit_id;
char *head_ref_name;
struct got_repository *repo;
struct got_tree_entry *matched_entry;
struct tog_colors colors;
426};

428struct tog_reflist_entry {
TAILQ_ENTRY(tog_reflist_entry)struct { struct tog_reflist_entry *tqe_next; struct tog_reflist_entry
 **tqe_prev; } entry;
struct got_reference *ref;
int idx;
432};

434TAILQ_HEAD(tog_reflist_head, tog_reflist_entry)struct tog_reflist_head { struct tog_reflist_entry *tqh_first
; struct tog_reflist_entry **tqh_last; };

436struct tog_ref_view_state {
struct tog_reflist_head refs;
struct tog_reflist_entry *first_displayed_entry;
struct tog_reflist_entry *last_displayed_entry;
struct tog_reflist_entry *selected_entry;
int nrefs, ndisplayed, selected, show_ids;
struct got_repository *repo;
struct tog_reflist_entry *matched_entry;
struct tog_colors colors;
445};

447/*
* We implement two types of views: parent views and child views.
*
* The 'Tab' key switches focus between a parent view and its child view.
* Child views are shown side-by-side to their parent view, provided
* there is enough screen estate.
*
* When a new view is opened from within a parent view, this new view
* becomes a child view of the parent view, replacing any existing child.
*
* When a new view is opened from within a child view, this new view
* becomes a parent view which will obscure the views below until the
* user quits the new parent view by typing 'q'.
*
* This list of views contains parent views only.
* Child views are only pointed to by their parent view.
*/
464TAILQ_HEAD(tog_view_list_head, tog_view)struct tog_view_list_head { struct tog_view *tqh_first; struct
 tog_view **tqh_last; };

466struct tog_view {
TAILQ_ENTRY(tog_view)struct { struct tog_view *tqe_next; struct tog_view **tqe_prev
; } entry;
WINDOW *window;
PANEL *panel;
int nlines, ncols, begin_y, begin_x;
int lines, cols; /* copies of LINES and COLS */
int focussed; /* Only set on one parent or child view at a time. */
int dying;
struct tog_view *parent;
struct tog_view *child;

/*
* This flag is initially set on parent views when a new child view
* is created. It gets toggled when the 'Tab' key switches focus
* between parent and child.
* The flag indicates whether focus should be passed on to our child
* view if this parent view gets picked for focus after another parent
* view was closed. This prevents child views from losing focus in such
* situations.
*/
int focus_child;

/* type-specific state */
enum tog_view_type type;
union {
struct tog_diff_view_state diff;
struct tog_log_view_state log;
struct tog_blame_view_state blame;
struct tog_tree_view_state tree;
struct tog_ref_view_state ref;
} state;

const struct got_error *(*show)(struct tog_view *);
const struct got_error *(*input)(struct tog_view **,
   struct tog_view *, int);
const struct got_error *(*close)(struct tog_view *);

const struct got_error *(*search_start)(struct tog_view *);
const struct got_error *(*search_next)(struct tog_view *);
int search_started;
int searching;
507#define TOG_SEARCH_FORWARD1	1
508#define TOG_SEARCH_BACKWARD2	2
int search_next_done;
510#define TOG_SEARCH_HAVE_MORE1	1
511#define TOG_SEARCH_NO_MORE2	2
512#define TOG_SEARCH_HAVE_NONE3	3
regex_t regex;
regmatch_t regmatch;
515};

517static const struct got_error *open_diff_view(struct tog_view *,
  struct got_object_id *, struct got_object_id *,
  const char *, const char *, int, int, int, struct tog_view *,
  struct got_repository *);
521static const struct got_error *show_diff_view(struct tog_view *);
522static const struct got_error *input_diff_view(struct tog_view **,
  struct tog_view *, int);
524static const struct got_error* close_diff_view(struct tog_view *);
525static const struct got_error *search_start_diff_view(struct tog_view *);
526static const struct got_error *search_next_diff_view(struct tog_view *);

528static const struct got_error *open_log_view(struct tog_view *,
  struct got_object_id *, struct got_repository *,
  const char *, const char *, int);
531static const struct got_error * show_log_view(struct tog_view *);
532static const struct got_error *input_log_view(struct tog_view **,
  struct tog_view *, int);
534static const struct got_error *close_log_view(struct tog_view *);
535static const struct got_error *search_start_log_view(struct tog_view *);
536static const struct got_error *search_next_log_view(struct tog_view *);

538static const struct got_error *open_blame_view(struct tog_view *, char *,
  struct got_object_id *, struct got_repository *);
540static const struct got_error *show_blame_view(struct tog_view *);
541static const struct got_error *input_blame_view(struct tog_view **,
  struct tog_view *, int);
543static const struct got_error *close_blame_view(struct tog_view *);
544static const struct got_error *search_start_blame_view(struct tog_view *);
545static const struct got_error *search_next_blame_view(struct tog_view *);

547static const struct got_error *open_tree_view(struct tog_view *,
  struct got_tree_object *, struct got_object_id *, const char *,
  struct got_repository *);
550static const struct got_error *show_tree_view(struct tog_view *);
551static const struct got_error *input_tree_view(struct tog_view **,
  struct tog_view *, int);
553static const struct got_error *close_tree_view(struct tog_view *);
554static const struct got_error *search_start_tree_view(struct tog_view *);
555static const struct got_error *search_next_tree_view(struct tog_view *);

557static const struct got_error *open_ref_view(struct tog_view *,
  struct got_repository *);
559static const struct got_error *show_ref_view(struct tog_view *);
560static const struct got_error *input_ref_view(struct tog_view **,
  struct tog_view *, int);
562static const struct got_error *close_ref_view(struct tog_view *);
563static const struct got_error *search_start_ref_view(struct tog_view *);
564static const struct got_error *search_next_ref_view(struct tog_view *);

566static volatile sig_atomic_t tog_sigwinch_received;
567static volatile sig_atomic_t tog_sigpipe_received;
568static volatile sig_atomic_t tog_sigcont_received;

570static void
571tog_sigwinch(int signo)
572{
tog_sigwinch_received = 1;
574}

576static void
577tog_sigpipe(int signo)
578{
tog_sigpipe_received = 1;
580}

582static void
583tog_sigcont(int signo)
584{
tog_sigcont_received = 1;
586}

588static const struct got_error *
589view_close(struct tog_view *view)
590{
const struct got_error *err = NULL((void*)0);

if (view->child) {
view_close(view->child);
view->child = NULL((void*)0);
}
if (view->close)
err = view->close(view);
if (view->panel)
del_panel(view->panel);
if (view->window)
delwin(view->window);
free(view);
return err;
605}

607static struct tog_view *
608view_open(int nlines, int ncols, int begin_y, int begin_x,
  enum tog_view_type type)
610{
struct tog_view *view = calloc(1, sizeof(*view));

if (view == NULL((void*)0))
return NULL((void*)0);

view->type = type;
view->lines = LINES;
view->cols = COLS;
view->nlines = nlines ? nlines : LINES - begin_y;
view->ncols = ncols ? ncols : COLS - begin_x;
view->begin_y = begin_y;
view->begin_x = begin_x;
view->window = newwin(nlines, ncols, begin_y, begin_x);
if (view->window == NULL((void*)0)) {
view_close(view);
return NULL((void*)0);
}
view->panel = new_panel(view->window);
if (view->panel == NULL((void*)0) ||
   set_panel_userptr(view->panel, view) != OK(0)) {
view_close(view);
return NULL((void*)0);
}

keypad(view->window, TRUE1);
return view;
637}

639static int
640view_split_begin_x(int begin_x)
641{
if (begin_x > 0 || COLS < 120)
return 0;
return (COLS - MAX(COLS / 2, 80)((COLS / 2) > (80) ? (COLS / 2) : (80)));
645}

647static const struct got_error *view_resize(struct tog_view *);

649static const struct got_error *
650view_splitscreen(struct tog_view *view)
651{
const struct got_error *err = NULL((void*)0);

view->begin_y = 0;
view->begin_x = view_split_begin_x(0);
view->nlines = LINES;
view->ncols = COLS - view->begin_x;
view->lines = LINES;
view->cols = COLS;
err = view_resize(view);
if (err)
return err;

if (mvwin(view->window, view->begin_y, view->begin_x) == ERR(-1))
return got_error_from_errno("mvwin");

return NULL((void*)0);
668}

670static const struct got_error *
671view_fullscreen(struct tog_view *view)
672{
const struct got_error *err = NULL((void*)0);

view->begin_x = 0;
view->begin_y = 0;
view->nlines = LINES;
view->ncols = COLS;
view->lines = LINES;
view->cols = COLS;
err = view_resize(view);
if (err)
return err;

if (mvwin(view->window, view->begin_y, view->begin_x) == ERR(-1))
return got_error_from_errno("mvwin");

return NULL((void*)0);
689}

691static int
692view_is_parent_view(struct tog_view *view)
693{
return view->parent == NULL((void*)0);
695}

697static const struct got_error *
698view_resize(struct tog_view *view)
699{
int nlines, ncols;

if (view->lines > LINES)
nlines = view->nlines - (view->lines - LINES);
else
nlines = view->nlines + (LINES - view->lines);

if (view->cols > COLS)
ncols = view->ncols - (view->cols - COLS);
else
ncols = view->ncols + (COLS - view->cols);

if (wresize(view->window, nlines, ncols) == ERR(-1))
return got_error_from_errno("wresize");
if (replace_panel(view->panel, view->window) == ERR(-1))
return got_error_from_errno("replace_panel");
wclear(view->window);

view->nlines = nlines;
view->ncols = ncols;
view->lines = LINES;
view->cols = COLS;

if (view->child) {
view->child->begin_x = view_split_begin_x(view->begin_x);
if (view->child->begin_x == 0) {
	view_fullscreen(view->child);
	if (view->child->focussed)
		show_panel(view->child->panel);
	else
		show_panel(view->panel);
} else {
	view_splitscreen(view->child);
	show_panel(view->child->panel);
}
}

return NULL((void*)0);
738}

740static const struct got_error *
741view_close_child(struct tog_view *view)
742{
const struct got_error *err = NULL((void*)0);

if (view->child == NULL((void*)0))
return NULL((void*)0);

err = view_close(view->child);
view->child = NULL((void*)0);
return err;
751}

753static void
754view_set_child(struct tog_view *view, struct tog_view *child)
755{
view->child = child;
child->parent = view;
758}

760static int
761view_is_splitscreen(struct tog_view *view)
762{
return view->begin_x > 0;
764}

766static void
767tog_resizeterm(void)
768{
int cols, lines;
struct winsize size;

if (ioctl(STDOUT_FILENO1, TIOCGWINSZ((unsigned long)0x40000000 | ((sizeof(struct winsize) & 0x1fff
) << 16) | ((('t')) << 8) | ((104))), &size) < 0) {
cols = 80;     /* Default */
lines = 24;
} else {
cols = size.ws_col;
lines = size.ws_row;
}
resize_term(lines, cols);
780}

782static const struct got_error *
783view_search_start(struct tog_view *view)
784{
const struct got_error *err = NULL((void*)0);
char pattern[1024];
int ret;

if (view->search_started) {
regfree(&view->regex);
view->searching = 0;
memset(&view->regmatch, 0, sizeof(view->regmatch));
}
view->search_started = 0;

if (view->nlines < 1)
return NULL((void*)0);

mvwaddstr(view->window, view->begin_y + view->nlines - 1, 0, "/")(wmove(view->window,view->begin_y + view->nlines - 1
,0) == (-1) ? (-1) : waddnstr(view->window,"/",-1));
wclrtoeol(view->window);

nocbreak();
echo();
ret = wgetnstr(view->window, pattern, sizeof(pattern));
cbreak();
noecho();
if (ret == ERR(-1))
return NULL((void*)0);

if (regcomp(&view->regex, pattern, REG_EXTENDED0001 | REG_NEWLINE0010) == 0) {
err = view->search_start(view);
if (err) {
	regfree(&view->regex);
	return err;
}
view->search_started = 1;
view->searching = TOG_SEARCH_FORWARD1;
view->search_next_done = 0;
view->search_next(view);
}

return NULL((void*)0);
823}

825static const struct got_error *
826view_input(struct tog_view **new, int *done, struct tog_view *view,
  struct tog_view_list_head *views)
828{
const struct got_error *err = NULL((void*)0);
struct tog_view *v;
int ch, errcode;

*new = NULL((void*)0);

/* Clear "no matches" indicator. */
if (view->search_next_done == TOG_SEARCH_NO_MORE2 ||
   view->search_next_done == TOG_SEARCH_HAVE_NONE3)
view->search_next_done = TOG_SEARCH_HAVE_MORE1;

if (view->searching && !view->search_next_done) {
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
pthread_yield();
errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_lock");
view->search_next(view);
return NULL((void*)0);
}

nodelay(stdscr, FALSE0);
/* Allow threads to make progress while we are waiting for input. */
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode, "pthread_mutex_unlock");
ch = wgetch(view->window);
errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode, "pthread_mutex_lock");
nodelay(stdscr, TRUE1);

if (tog_sigwinch_received || tog_sigcont_received) {
tog_resizeterm();
tog_sigwinch_received = 0;
tog_sigcont_received = 0;
TAILQ_FOREACH(v, views, entry)for((v) = ((views)->tqh_first); (v) != ((void*)0); (v) = (
(v)->entry.tqe_next)) {
	err = view_resize(v);
	if (err)
		return err;
	err = v->input(new, v, KEY_RESIZE0632);
	if (err)
		return err;
	if (v->child) {
		err = view_resize(v->child);
		if (err)
			return err;
		err = v->child->input(new, v->child,
		    KEY_RESIZE0632);
		if (err)
			return err;
	}
}
}

switch (ch) {
case ERR(-1):
break;
case '\t':
if (view->child) {
	view->focussed = 0;
	view->child->focussed = 1;
	view->focus_child = 1;
} else if (view->parent) {
	view->focussed = 0;
	view->parent->focussed = 1;
	view->parent->focus_child = 0;
}
break;
case 'q':
err = view->input(new, view, ch);
view->dying = 1;
break;
case 'Q':
*done = 1;
break;
case 'f':
if (view_is_parent_view(view)) {
	if (view->child == NULL((void*)0))
		break;
	if (view_is_splitscreen(view->child)) {
		view->focussed = 0;
		view->child->focussed = 1;
		err = view_fullscreen(view->child);
	} else
		err = view_splitscreen(view->child);
	if (err)
		break;
	err = view->child->input(new, view->child,
	    KEY_RESIZE0632);
} else {
	if (view_is_splitscreen(view)) {
		view->parent->focussed = 0;
		view->focussed = 1;
		err = view_fullscreen(view);
	} else {
		err = view_splitscreen(view);
	}
	if (err)
		break;
	err = view->input(new, view, KEY_RESIZE0632);
}
break;
case KEY_RESIZE0632:
break;
case '/':
if (view->search_start)
	view_search_start(view);
else
	err = view->input(new, view, ch);
break;
case 'N':
case 'n':
if (view->search_started && view->search_next) {
	view->searching = (ch == 'n' ?
	    TOG_SEARCH_FORWARD1 : TOG_SEARCH_BACKWARD2);
	view->search_next_done = 0;
	view->search_next(view);
} else
	err = view->input(new, view, ch);
break;
default:
err = view->input(new, view, ch);
break;
}

return err;
960}

962void
963view_vborder(struct tog_view *view)
964{
PANEL *panel;
const struct tog_view *view_above;

if (view->parent)
return view_vborder(view->parent);

panel = panel_above(view->panel);
if (panel == NULL((void*)0))
return;

view_above = panel_userptr(panel);
mvwvline(view->window, view->begin_y, view_above->begin_x - 1,(wmove(view->window,view->begin_y,view_above->begin_x
 - 1) == (-1) ? (-1) : wvline(view->window,got_locale_is_utf8
() ? (acs_map[(unsigned char)('x')]) : '|',view->nlines))
   got_locale_is_utf8() ? ACS_VLINE : '|', view->nlines)(wmove(view->window,view->begin_y,view_above->begin_x
 - 1) == (-1) ? (-1) : wvline(view->window,got_locale_is_utf8
() ? (acs_map[(unsigned char)('x')]) : '|',view->nlines));
978}

980int
981view_needs_focus_indication(struct tog_view *view)
982{
if (view_is_parent_view(view)) {
if (view->child == NULL((void*)0) || view->child->focussed)
	return 0;
if (!view_is_splitscreen(view->child))
	return 0;
} else if (!view_is_splitscreen(view))
return 0;

return view->focussed;
992}

994static const struct got_error *
995view_loop(struct tog_view *view)
996{
const struct got_error *err = NULL((void*)0);
struct tog_view_list_head views;
struct tog_view *new_view;
int fast_refresh = 10;
int done = 0, errcode;

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode, "pthread_mutex_lock");

TAILQ_INIT(&views)do { (&views)->tqh_first = ((void*)0); (&views)->
tqh_last = &(&views)->tqh_first; } while (0);
TAILQ_INSERT_HEAD(&views, view, entry)do { if (((view)->entry.tqe_next = (&views)->tqh_first
) != ((void*)0)) (&views)->tqh_first->entry.tqe_prev
 = &(view)->entry.tqe_next; else (&views)->tqh_last
 = &(view)->entry.tqe_next; (&views)->tqh_first
 = (view); (view)->entry.tqe_prev = &(&views)->
tqh_first; } while (0);

view->focussed = 1;
err = view->show(view);
if (err)
return err;
update_panels();
doupdate();
while (!TAILQ_EMPTY(&views)(((&views)->tqh_first) == ((void*)0)) && !done && !tog_sigpipe_received) {
/* Refresh fast during initialization, then become slower. */
if (fast_refresh && fast_refresh-- == 0)
	halfdelay(10); /* switch to once per second */

err = view_input(&new_view, &done, view, &views);
if (err)
	break;
if (view->dying) {
	struct tog_view *v, *prev = NULL((void*)0);

	if (view_is_parent_view(view))
		prev = TAILQ_PREV(view, tog_view_list_head,(*(((struct tog_view_list_head *)((view)->entry.tqe_prev))
->tqh_last))
		    entry)(*(((struct tog_view_list_head *)((view)->entry.tqe_prev))
->tqh_last));
	else if (view->parent)
		prev = view->parent;

	if (view->parent) {
		view->parent->child = NULL((void*)0);
		view->parent->focus_child = 0;
	} else
		TAILQ_REMOVE(&views, view, entry)do { if (((view)->entry.tqe_next) != ((void*)0)) (view)->
entry.tqe_next->entry.tqe_prev = (view)->entry.tqe_prev
; else (&views)->tqh_last = (view)->entry.tqe_prev;
 *(view)->entry.tqe_prev = (view)->entry.tqe_next; ; ; }
 while (0);

	err = view_close(view);
	if (err)
		goto done;

	view = NULL((void*)0);
	TAILQ_FOREACH(v, &views, entry)for((v) = ((&views)->tqh_first); (v) != ((void*)0); (v
) = ((v)->entry.tqe_next)) {
		if (v->focussed)
			break;
	}
	if (view == NULL((void*)0) && new_view == NULL((void*)0)) {
		/* No view has focus. Try to pick one. */
		if (prev)
			view = prev;
		else if (!TAILQ_EMPTY(&views)(((&views)->tqh_first) == ((void*)0))) {
			view = TAILQ_LAST(&views,(*(((struct tog_view_list_head *)((&views)->tqh_last))
->tqh_last))
			    tog_view_list_head)(*(((struct tog_view_list_head *)((&views)->tqh_last))
->tqh_last));
		}
		if (view) {
			if (view->focus_child) {
				view->child->focussed = 1;
				view = view->child;
			} else
				view->focussed = 1;
		}
	}
}
if (new_view) {
	struct tog_view *v, *t;
	/* Only allow one parent view per type. */
	TAILQ_FOREACH_SAFE(v, &views, entry, t)for ((v) = ((&views)->tqh_first); (v) != ((void*)0) &&
 ((t) = ((v)->entry.tqe_next), 1); (v) = (t)) {
		if (v->type != new_view->type)
			continue;
		TAILQ_REMOVE(&views, v, entry)do { if (((v)->entry.tqe_next) != ((void*)0)) (v)->entry
.tqe_next->entry.tqe_prev = (v)->entry.tqe_prev; else (
&views)->tqh_last = (v)->entry.tqe_prev; *(v)->entry
.tqe_prev = (v)->entry.tqe_next; ; ; } while (0);
		err = view_close(v);
		if (err)
			goto done;
		break;
	}
	TAILQ_INSERT_TAIL(&views, new_view, entry)do { (new_view)->entry.tqe_next = ((void*)0); (new_view)->
entry.tqe_prev = (&views)->tqh_last; *(&views)->
tqh_last = (new_view); (&views)->tqh_last = &(new_view
)->entry.tqe_next; } while (0);
	view = new_view;
} 
if (view) {
	if (view_is_parent_view(view)) {
		if (view->child && view->child->focussed)
			view = view->child;
	} else {
		if (view->parent && view->parent->focussed)
			view = view->parent;
	}
	show_panel(view->panel);
	if (view->child && view_is_splitscreen(view->child))
		show_panel(view->child->panel);
	if (view->parent && view_is_splitscreen(view)) {
		err = view->parent->show(view->parent);
		if (err)
			goto done;
	}
	err = view->show(view);
	if (err)
		goto done;
	if (view->child) {
		err = view->child->show(view->child);
		if (err)
			goto done;
	}
	update_panels();
	doupdate();
}
}
1108done:
while (!TAILQ_EMPTY(&views)(((&views)->tqh_first) == ((void*)0))) {
view = TAILQ_FIRST(&views)((&views)->tqh_first);
TAILQ_REMOVE(&views, view, entry)do { if (((view)->entry.tqe_next) != ((void*)0)) (view)->
entry.tqe_next->entry.tqe_prev = (view)->entry.tqe_prev
; else (&views)->tqh_last = (view)->entry.tqe_prev;
 *(view)->entry.tqe_prev = (view)->entry.tqe_next; ; ; }
 while (0);
view_close(view);
}

errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode && err == NULL((void*)0))
err = got_error_set_errno(errcode, "pthread_mutex_unlock");

return err;
1120}

1122__dead__attribute__((__noreturn__)) static void
1123usage_log(void)
1124{
endwin();
fprintf(stderr(&__sF[2]),
   "usage: %s log [-b] [-c commit] [-r repository-path] [path]\n",
   getprogname());
exit(1);
1130}

1132/* Create newly allocated wide-character string equivalent to a byte string. */
1133static const struct got_error *
1134mbs2ws(wchar_t **ws, size_t *wlen, const char *s)
1135{
char *vis = NULL((void*)0);
const struct got_error *err = NULL((void*)0);

*ws = NULL((void*)0);
*wlen = mbstowcs(NULL((void*)0), s, 0);
if (*wlen == (size_t)-1) {
int vislen;
if (errno(*__errno()) != EILSEQ84)
	return got_error_from_errno("mbstowcs");

/* byte string invalid in current encoding; try to "fix" it */
err = got_mbsavis(&vis, &vislen, s);
if (err)
	return err;
*wlen = mbstowcs(NULL((void*)0), vis, 0);
if (*wlen == (size_t)-1) {
	err = got_error_from_errno("mbstowcs"); /* give up */
	goto done;
}
}

*ws = calloc(*wlen + 1, sizeof(**ws));
if (*ws == NULL((void*)0)) {
err = got_error_from_errno("calloc");
goto done;
}

if (mbstowcs(*ws, vis ? vis : s, *wlen) != *wlen)
err = got_error_from_errno("mbstowcs");
1165done:
free(vis);
if (err) {
free(*ws);
*ws = NULL((void*)0);
*wlen = 0;
}
return err;
1173}

1175/* Format a line for display, ensuring that it won't overflow a width limit. */
1176static const struct got_error *
1177format_line(wchar_t **wlinep, int *widthp, const char *line, int wlimit,
  int col_tab_align)
1179{
const struct got_error *err = NULL((void*)0);
int cols = 0;
wchar_t *wline = NULL((void*)0);
size_t wlen;
int i;

*wlinep = NULL((void*)0);
*widthp = 0;

err = mbs2ws(&wline, &wlen, line);
if (err)
return err;

if (wlen > 0 && wline[wlen - 1] == L'\n') {
wline[wlen - 1] = L'\0';
wlen--;
}
if (wlen > 0 && wline[wlen - 1] == L'\r') {
wline[wlen - 1] = L'\0';
wlen--;
}

i = 0;
while (i < wlen) {
int width = wcwidth(wline[i]);

if (width == 0) {
	i++;
	continue;
}

if (width == 1 || width == 2) {
	if (cols + width > wlimit)
		break;
	cols += width;
	i++;
} else if (width == -1) {
	if (wline[i] == L'\t') {
		width = TABSIZE -
		    ((cols + col_tab_align) % TABSIZE);
	} else {
		width = 1;
		wline[i] = L'.';
	}
	if (cols + width > wlimit)
		break;
	cols += width;
	i++;
} else {
	err = got_error_from_errno("wcwidth");
	goto done;
}
}
wline[i] = L'\0';
if (widthp)
*widthp = cols;
1236done:
if (err)
free(wline);
else
*wlinep = wline;
return err;
1242}

1244static const struct got_error*
1245build_refs_str(char **refs_str, struct got_reflist_head *refs,
  struct got_object_id *id, struct got_repository *repo)
1247{
static const struct got_error *err = NULL((void*)0);
struct got_reflist_entry *re;
char *s;
const char *name;

*refs_str = NULL((void*)0);

TAILQ_FOREACH(re, refs, entry)for((re) = ((refs)->tqh_first); (re) != ((void*)0); (re) =
 ((re)->entry.tqe_next)) {
struct got_tag_object *tag = NULL((void*)0);
struct got_object_id *ref_id;
int cmp;

name = got_ref_get_name(re->ref);
if (strcmp(name, GOT_REF_HEAD"HEAD") == 0)
	continue;
if (strncmp(name, "refs/", 5) == 0)
	name += 5;
if (strncmp(name, "got/", 4) == 0)
	continue;
if (strncmp(name, "heads/", 6) == 0)
	name += 6;
if (strncmp(name, "remotes/", 8) == 0) {
	name += 8;
	s = strstr(name, "/" GOT_REF_HEAD"HEAD");
	if (s != NULL((void*)0) && s[strlen(s)] == '\0')
		continue;
}
err = got_ref_resolve(&ref_id, repo, re->ref);
if (err)
	break;
if (strncmp(name, "tags/", 5) == 0) {
	err = got_object_open_as_tag(&tag, repo, ref_id);
	if (err) {
		if (err->code != GOT_ERR_OBJ_TYPE11) {
			free(ref_id);
			break;
		}
		/* Ref points at something other than a tag. */
		err = NULL((void*)0);
		tag = NULL((void*)0);
	}
}
cmp = got_object_id_cmp(tag ?
    got_object_tag_get_object_id(tag) : ref_id, id);
free(ref_id);
if (tag)
	got_object_tag_close(tag);
if (cmp != 0)
	continue;
s = *refs_str;
if (asprintf(refs_str, "%s%s%s", s ? s : "",
    s ? ", " : "", name) == -1) {
	err = got_error_from_errno("asprintf");
	free(s);
	*refs_str = NULL((void*)0);
	break;
}
free(s);
}

return err;
1309}

1311static const struct got_error *
1312format_author(wchar_t **wauthor, int *author_width, char *author, int limit,
  int col_tab_align)
1314{
char *smallerthan;

smallerthan = strchr(author, '<');
if (smallerthan && smallerthan[1] != '\0')
author = smallerthan + 1;
author[strcspn(author, "@>")] = '\0';
return format_line(wauthor, author_width, author, limit, col_tab_align);
1322}

1324static const struct got_error *
1325draw_commit(struct tog_view *view, struct got_commit_object *commit,
  struct got_object_id *id, const size_t date_display_cols,
  int author_display_cols)
1328{
struct tog_log_view_state *s = &view->state.log;
const struct got_error *err = NULL((void*)0);
char datebuf[12]; /* YYYY-MM-DD + SPACE + NUL */
char *logmsg0 = NULL((void*)0), *logmsg = NULL((void*)0);
char *author = NULL((void*)0);
wchar_t *wlogmsg = NULL((void*)0), *wauthor = NULL((void*)0);
int author_width, logmsg_width;
char *newline, *line = NULL((void*)0);
int col, limit;
const int avail = view->ncols;
struct tm tm;
time_t committer_time;
struct tog_color *tc;

committer_time = got_object_commit_get_committer_time(commit);
if (localtime_r(&committer_time, &tm) == NULL((void*)0))
return got_error_from_errno("localtime_r");
if (strftime(datebuf, sizeof(datebuf), "%G-%m-%d ", &tm) == 0)
return got_error(GOT_ERR_NO_SPACE9);

if (avail <= date_display_cols)
limit = MIN(sizeof(datebuf) - 1, avail)((sizeof(datebuf) - 1) < (avail) ? (sizeof(datebuf) - 1) :
 (avail));
else
limit = MIN(date_display_cols, sizeof(datebuf) - 1)((date_display_cols) < (sizeof(datebuf) - 1) ? (date_display_cols
) : (sizeof(datebuf) - 1));
tc = get_color(&s->colors, TOG_COLOR_DATE11);
if (tc)
wattr_on(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddnstr(view->window, datebuf, limit);
if (tc)
wattr_off(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
col = limit;
if (col > avail)
goto done;

if (avail >= 120) {
char *id_str;
err = got_object_id_str(&id_str, id);
if (err)
	goto done;
tc = get_color(&s->colors, TOG_COLOR_COMMIT9);
if (tc)
	wattr_on(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
wprintw(view->window, "%.8s ", id_str);
if (tc)
	wattr_off(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
free(id_str);
col += 9;
if (col > avail)
	goto done;
}

author = strdup(got_object_commit_get_author(commit));
if (author == NULL((void*)0)) {
err = got_error_from_errno("strdup");
goto done;
}
err = format_author(&wauthor, &author_width, author, avail - col, col);
if (err)
goto done;
tc = get_color(&s->colors, TOG_COLOR_AUTHOR10);
if (tc)
wattr_on(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wauthor)waddnwstr(view->window,wauthor,-1);
if (tc)
wattr_off(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
col += author_width;
while (col < avail && author_width < author_display_cols + 2) {
waddch(view->window, ' ');
col++;
author_width++;
}
if (col > avail)
goto done;

err = got_object_commit_get_logmsg(&logmsg0, commit);
if (err)
goto done;
logmsg = logmsg0;
while (*logmsg == '\n')
logmsg++;
newline = strchr(logmsg, '\n');
if (newline)
*newline = '\0';
limit = avail - col;
err = format_line(&wlogmsg, &logmsg_width, logmsg, limit, col);
if (err)
goto done;
waddwstr(view->window, wlogmsg)waddnwstr(view->window,wlogmsg,-1);
col += logmsg_width;
while (col < avail) {
waddch(view->window, ' ');
col++;
}
1428done:
free(logmsg0);
free(wlogmsg);
free(author);
free(wauthor);
free(line);
return err;
1435}

1437static struct commit_queue_entry *
1438alloc_commit_queue_entry(struct got_commit_object *commit,
  struct got_object_id *id)
1440{
struct commit_queue_entry *entry;

entry = calloc(1, sizeof(*entry));
if (entry == NULL((void*)0))
return NULL((void*)0);

entry->id = id;
entry->commit = commit;
return entry;
1450}

1452static void
1453pop_commit(struct commit_queue *commits)
1454{
struct commit_queue_entry *entry;

entry = TAILQ_FIRST(&commits->head)((&commits->head)->tqh_first);
TAILQ_REMOVE(&commits->head, entry, entry)do { if (((entry)->entry.tqe_next) != ((void*)0)) (entry)->
entry.tqe_next->entry.tqe_prev = (entry)->entry.tqe_prev
; else (&commits->head)->tqh_last = (entry)->entry
.tqe_prev; *(entry)->entry.tqe_prev = (entry)->entry.tqe_next
; ; ; } while (0);
got_object_commit_close(entry->commit);
commits->ncommits--;
/* Don't free entry->id! It is owned by the commit graph. */
free(entry);
1463}

1465static void
1466free_commits(struct commit_queue *commits)
1467{
while (!TAILQ_EMPTY(&commits->head)(((&commits->head)->tqh_first) == ((void*)0)))
pop_commit(commits);
1470}

1472static const struct got_error *
1473match_commit(int *have_match, struct got_object_id *id,
  struct got_commit_object *commit, regex_t *regex)
1475{
const struct got_error *err = NULL((void*)0);
regmatch_t regmatch;
char *id_str = NULL((void*)0), *logmsg = NULL((void*)0);

*have_match = 0;

err = got_object_id_str(&id_str, id);
if (err)
return err;

err = got_object_commit_get_logmsg(&logmsg, commit);
if (err)
goto done;

if (regexec(regex, got_object_commit_get_author(commit), 1,
   &regmatch, 0) == 0 ||
   regexec(regex, got_object_commit_get_committer(commit), 1,
   &regmatch, 0) == 0 ||
   regexec(regex, id_str, 1, &regmatch, 0) == 0 ||
   regexec(regex, logmsg, 1, &regmatch, 0) == 0)
*have_match = 1;
1497done:
free(id_str);
free(logmsg);
return err;
1501}

1503static const struct got_error *
1504queue_commits(struct tog_log_thread_args *a)
1505{
const struct got_error *err = NULL((void*)0);

/*
* We keep all commits open throughout the lifetime of the log
* view in order to avoid having to re-fetch commits from disk
* while updating the display.
*/
do {
struct got_object_id *id;
struct got_commit_object *commit;
struct commit_queue_entry *entry;
int errcode;

err = got_commit_graph_iter_next(&id, a->graph, a->repo,
    NULL((void*)0), NULL((void*)0));
if (err || id == NULL((void*)0))
	break;

err = got_object_open_as_commit(&commit, a->repo, id);
if (err)
	break;
entry = alloc_commit_queue_entry(commit, id);
if (entry == NULL((void*)0)) {
	err = got_error_from_errno("alloc_commit_queue_entry");
	break;
}

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode) {
	err = got_error_set_errno(errcode,
	    "pthread_mutex_lock");
	break;
}

entry->idx = a->commits->ncommits;
TAILQ_INSERT_TAIL(&a->commits->head, entry, entry)do { (entry)->entry.tqe_next = ((void*)0); (entry)->entry
.tqe_prev = (&a->commits->head)->tqh_last; *(&
a->commits->head)->tqh_last = (entry); (&a->commits
->head)->tqh_last = &(entry)->entry.tqe_next; } while
 (0);
a->commits->ncommits++;

if (*a->searching == TOG_SEARCH_FORWARD1 &&
    !*a->search_next_done) {
	int have_match;
	err = match_commit(&have_match, id, commit, a->regex);
	if (err)
		break;
	if (have_match)
		*a->search_next_done = TOG_SEARCH_HAVE_MORE1;
}

errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode && err == NULL((void*)0))
	err = got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
if (err)
	break;
} while (*a->searching == TOG_SEARCH_FORWARD1 && !*a->search_next_done);

return err;
1563}

1565static void
1566select_commit(struct tog_log_view_state *s)
1567{
struct commit_queue_entry *entry;
int ncommits = 0;

entry = s->first_displayed_entry;
while (entry) {
if (ncommits == s->selected) {
	s->selected_entry = entry;
	break;
}
entry = TAILQ_NEXT(entry, entry)((entry)->entry.tqe_next);
ncommits++;
}
1580}

1582static const struct got_error *
1583draw_commits(struct tog_view *view)
1584{
const struct got_error *err = NULL((void*)0);
struct tog_log_view_state *s = &view->state.log;
struct commit_queue_entry *entry = s->selected_entry;
const int limit = view->nlines;
int width;
int ncommits, author_cols = 4;
char *id_str = NULL((void*)0), *header = NULL((void*)0), *ncommits_str = NULL((void*)0);
char *refs_str = NULL((void*)0);
wchar_t *wline;
struct tog_color *tc;
static const size_t date_display_cols = 12;

if (s->selected_entry &&
   !(view->searching && view->search_next_done == 0)) {
struct got_reflist_head *refs;
err = got_object_id_str(&id_str, s->selected_entry->id);
if (err)
	return err;
refs = got_reflist_object_id_map_lookup(tog_refs_idmap,
    s->selected_entry->id);
if (refs) {
	err = build_refs_str(&refs_str, refs,
	    s->selected_entry->id, s->repo);
	if (err)
		goto done;
}
}

if (s->thread_args.commits_needed == 0)
halfdelay(10); /* disable fast refresh */

if (s->thread_args.commits_needed > 0) {
if (asprintf(&ncommits_str, " [%d/%d] %s",
    entry ? entry->idx + 1 : 0, s->commits.ncommits,
    (view->searching && !view->search_next_done) ?
    "searching..." : "loading...") == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
} else {
const char *search_str = NULL((void*)0);

if (view->searching) {
	if (view->search_next_done == TOG_SEARCH_NO_MORE2)
		search_str = "no more matches";
	else if (view->search_next_done == TOG_SEARCH_HAVE_NONE3)
		search_str = "no matches found";
	else if (!view->search_next_done)
		search_str = "searching...";
}

if (asprintf(&ncommits_str, " [%d/%d] %s",
    entry ? entry->idx + 1 : 0, s->commits.ncommits,
    search_str ? search_str :
    (refs_str ? refs_str : "")) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
}

if (s->in_repo_path && strcmp(s->in_repo_path, "/") != 0) {
if (asprintf(&header, "commit %s %s%s",
    id_str ? id_str : "........................................",
    s->in_repo_path, ncommits_str) == -1) {
	err = got_error_from_errno("asprintf");
	header = NULL((void*)0);
	goto done;
}
} else if (asprintf(&header, "commit %s%s",
   id_str ? id_str : "........................................",
   ncommits_str) == -1) {
err = got_error_from_errno("asprintf");
header = NULL((void*)0);
goto done;
}
err = format_line(&wline, &width, header, view->ncols, 0);
if (err)
goto done;

werase(view->window);

if (view_needs_focus_indication(view))
wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
tc = get_color(&s->colors, TOG_COLOR_COMMIT9);
if (tc)
wattr_on(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (tc)
wattr_off(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
while (width < view->ncols) {
waddch(view->window, ' ');
width++;
}
if (view_needs_focus_indication(view))
wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(wline);
if (limit <= 1)
goto done;

/* Grow author column size if necessary. */
entry = s->first_displayed_entry;
ncommits = 0;
while (entry) {
char *author;
wchar_t *wauthor;
int width;
if (ncommits >= limit - 1)
	break;
author = strdup(got_object_commit_get_author(entry->commit));
if (author == NULL((void*)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
err = format_author(&wauthor, &width, author, COLS,
    date_display_cols);
if (author_cols < width)
	author_cols = width;
free(wauthor);
free(author);
ncommits++;
entry = TAILQ_NEXT(entry, entry)((entry)->entry.tqe_next);
}

entry = s->first_displayed_entry;
s->last_displayed_entry = s->first_displayed_entry;
ncommits = 0;
while (entry) {
if (ncommits >= limit - 1)
	break;
if (ncommits == s->selected)
	wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
err = draw_commit(view, entry->commit, entry->id,
    date_display_cols, author_cols);
if (ncommits == s->selected)
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
if (err)
	goto done;
ncommits++;
s->last_displayed_entry = entry;
entry = TAILQ_NEXT(entry, entry)((entry)->entry.tqe_next);
}

view_vborder(view);
1730done:
free(id_str);
free(refs_str);
free(ncommits_str);
free(header);
return err;
1736}

1738static void
1739log_scroll_up(struct tog_log_view_state *s, int maxscroll)
1740{
struct commit_queue_entry *entry;
int nscrolled = 0;

entry = TAILQ_FIRST(&s->commits.head)((&s->commits.head)->tqh_first);
if (s->first_displayed_entry == entry)
return;

entry = s->first_displayed_entry;
while (entry && nscrolled < maxscroll) {
entry = TAILQ_PREV(entry, commit_queue_head, entry)(*(((struct commit_queue_head *)((entry)->entry.tqe_prev))
->tqh_last));
if (entry) {
	s->first_displayed_entry = entry;
	nscrolled++;
}
}
1756}

1758static const struct got_error *
1759trigger_log_thread(struct tog_view *view, int wait)
1760{
struct tog_log_thread_args *ta = &view->state.log.thread_args;
int errcode;

halfdelay(1); /* fast refresh while loading commits */

while (ta->commits_needed > 0) {
if (ta->log_complete)
	break;

/* Wake the log thread. */
errcode = pthread_cond_signal(&ta->need_commits);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_cond_signal");

/*
 * The mutex will be released while the view loop waits
 * in wgetch(), at which time the log thread will run.
 */
if (!wait)
	break;

/* Display progress update in log view. */
show_log_view(view);
update_panels();
doupdate();

/* Wait right here while next commit is being loaded. */
errcode = pthread_cond_wait(&ta->commit_loaded, &tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_cond_wait");

/* Display progress update in log view. */
show_log_view(view);
update_panels();
doupdate();
}

return NULL((void*)0);
1801}

1803static const struct got_error *
1804log_scroll_down(struct tog_view *view, int maxscroll)
1805{
struct tog_log_view_state *s = &view->state.log;
const struct got_error *err = NULL((void*)0);
struct commit_queue_entry *pentry;
int nscrolled = 0, ncommits_needed;

if (s->last_displayed_entry == NULL((void*)0))
return NULL((void*)0);

ncommits_needed = s->last_displayed_entry->idx + 1 + maxscroll;
if (s->commits.ncommits < ncommits_needed &&
   !s->thread_args.log_complete) {
/*
 * Ask the log thread for required amount of commits.
 */
s->thread_args.commits_needed += maxscroll;
err = trigger_log_thread(view, 1);
if (err)
	return err;
}

do {
pentry = TAILQ_NEXT(s->last_displayed_entry, entry)((s->last_displayed_entry)->entry.tqe_next);
if (pentry == NULL((void*)0))
	break;

s->last_displayed_entry = pentry;

pentry = TAILQ_NEXT(s->first_displayed_entry, entry)((s->first_displayed_entry)->entry.tqe_next);
if (pentry == NULL((void*)0))
	break;
s->first_displayed_entry = pentry;
} while (++nscrolled < maxscroll);

return err;
1840}

1842static const struct got_error *
1843open_diff_view_for_commit(struct tog_view **new_view, int begin_x,
  struct got_commit_object *commit, struct got_object_id *commit_id,
  struct tog_view *log_view, struct got_repository *repo)
1846{
const struct got_error *err;
struct got_object_qid *parent_id;
struct tog_view *diff_view;

diff_view = view_open(0, 0, 0, begin_x, TOG_VIEW_DIFF);
if (diff_view == NULL((void*)0))
return got_error_from_errno("view_open");

parent_id = SIMPLEQ_FIRST(got_object_commit_get_parent_ids(commit))((got_object_commit_get_parent_ids(commit))->sqh_first);
err = open_diff_view(diff_view, parent_id ? parent_id->id : NULL((void*)0),
   commit_id, NULL((void*)0), NULL((void*)0), 3, 0, 0, log_view, repo);
if (err == NULL((void*)0))
*new_view = diff_view;
return err;
1861}

1863static const struct got_error *
1864tree_view_visit_subtree(struct tog_tree_view_state *s,
  struct got_tree_object *subtree)
1866{
struct tog_parent_tree *parent;

parent = calloc(1, sizeof(*parent));
if (parent == NULL((void*)0))
return got_error_from_errno("calloc");

parent->tree = s->tree;
parent->first_displayed_entry = s->first_displayed_entry;
parent->selected_entry = s->selected_entry;
parent->selected = s->selected;
TAILQ_INSERT_HEAD(&s->parents, parent, entry)do { if (((parent)->entry.tqe_next = (&s->parents)->
tqh_first) != ((void*)0)) (&s->parents)->tqh_first->
entry.tqe_prev = &(parent)->entry.tqe_next; else (&
s->parents)->tqh_last = &(parent)->entry.tqe_next
; (&s->parents)->tqh_first = (parent); (parent)->
entry.tqe_prev = &(&s->parents)->tqh_first; } while
 (0);
s->tree = subtree;
s->selected = 0;
s->first_displayed_entry = NULL((void*)0);
return NULL((void*)0);
1882}

1884static const struct got_error *
1885tree_view_walk_path(struct tog_tree_view_state *s,
  struct got_object_id *commit_id, const char *path)
1887{
const struct got_error *err = NULL((void*)0);
struct got_tree_object *tree = NULL((void*)0);
const char *p;
char *slash, *subpath = NULL((void*)0);

/* Walk the path and open corresponding tree objects. */
p = path;
while (*p) {
struct got_tree_entry *te;
struct got_object_id *tree_id;
char *te_name;

while (p[0] == '/')
	p++;

/* Ensure the correct subtree entry is selected. */
slash = strchr(p, '/');
if (slash == NULL((void*)0))
	te_name = strdup(p);
else
	te_name = strndup(p, slash - p);
if (te_name == NULL((void*)0)) {
	err = got_error_from_errno("strndup");
	break;
}
te = got_object_tree_find_entry(s->tree, te_name);
if (te == NULL((void*)0)) {
	err = got_error_path(te_name, GOT_ERR_NO_TREE_ENTRY50);
	free(te_name);
	break;
}
free(te_name);
s->first_displayed_entry = s->selected_entry = te;

if (!S_ISDIR(got_tree_entry_get_mode(s->selected_entry))((got_tree_entry_get_mode(s->selected_entry) & 0170000
) == 0040000))
	break; /* jump to this file's entry */

slash = strchr(p, '/');
if (slash)
	subpath = strndup(path, slash - path);
else
	subpath = strdup(path);
if (subpath == NULL((void*)0)) {
	err = got_error_from_errno("strdup");
	break;
}

err = got_object_id_by_path(&tree_id, s->repo, commit_id,
    subpath);
if (err)
	break;

err = got_object_open_as_tree(&tree, s->repo, tree_id);
free(tree_id);
if (err)
	break;

err = tree_view_visit_subtree(s, tree);
if (err) {
	got_object_tree_close(tree);
	break;
}
if (slash == NULL((void*)0))
	break;
free(subpath);
subpath = NULL((void*)0);
p = slash;
}

free(subpath);
return err;
1959}

1961static const struct got_error *
1962browse_commit_tree(struct tog_view **new_view, int begin_x,
  struct commit_queue_entry *entry, const char *path,
  const char *head_ref_name, struct got_repository *repo)
1965{
const struct got_error *err = NULL((void*)0);
struct got_tree_object *tree;
struct tog_tree_view_state *s;
struct tog_view *tree_view;

err = got_object_open_as_tree(&tree, repo,
   got_object_commit_get_tree_id(entry->commit));
if (err)
7
←
Assuming 'err' is null→
8
←
Taking false branch→
return err;

tree_view = view_open(0, 0, 0, begin_x, TOG_VIEW_TREE);
if (tree_view == NULL((void*)0))
9
←
Assuming 'tree_view' is equal to NULL→
10
←
Taking true branch→
return got_error_from_errno("view_open");
11
←
Returning without writing to '*new_view'→
12
←
Returning pointer, which participates in a condition later→

err = open_tree_view(tree_view, tree, entry->id, head_ref_name, repo);
if (err) {
got_object_tree_close(tree);
return err;
}
s = &tree_view->state.tree;

*new_view = tree_view;

if (got_path_is_root_dir(path))
return NULL((void*)0);

return tree_view_walk_path(s, entry->id, path);
1993}

1995static const struct got_error *
1996block_signals_used_by_main_thread(void)
1997{
sigset_t sigset;
int errcode;

if (sigemptyset(&sigset) == -1)
return got_error_from_errno("sigemptyset");

/* tog handles SIGWINCH and SIGCONT */
if (sigaddset(&sigset, SIGWINCH28) == -1)
return got_error_from_errno("sigaddset");
if (sigaddset(&sigset, SIGCONT19) == -1)
return got_error_from_errno("sigaddset");

/* ncurses handles SIGTSTP */
if (sigaddset(&sigset, SIGTSTP18) == -1)
return got_error_from_errno("sigaddset");

errcode = pthread_sigmask(SIG_BLOCK1, &sigset, NULL((void*)0));
if (errcode)
return got_error_set_errno(errcode, "pthread_sigmask");

return NULL((void*)0);
2019}

2021static void *
2022log_thread(void *arg)
2023{
const struct got_error *err = NULL((void*)0);
int errcode = 0;
struct tog_log_thread_args *a = arg;
int done = 0;

err = block_signals_used_by_main_thread();
if (err)
return (void *)err;

while (!done && !err && !tog_sigpipe_received) {
err = queue_commits(a);
if (err) {
	if (err->code != GOT_ERR_ITER_COMPLETED46)
		return (void *)err;
	err = NULL((void*)0);
	done = 1;
} else if (a->commits_needed > 0)
	a->commits_needed--;

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode) {
	err = got_error_set_errno(errcode,
	    "pthread_mutex_lock");
	break;
} else if (*a->quit)
	done = 1;
else if (*a->first_displayed_entry == NULL((void*)0)) {
	*a->first_displayed_entry =
	    TAILQ_FIRST(&a->commits->head)((&a->commits->head)->tqh_first);
	*a->selected_entry = *a->first_displayed_entry;
}

errcode = pthread_cond_signal(&a->commit_loaded);
if (errcode) {
	err = got_error_set_errno(errcode,
	    "pthread_cond_signal");
	pthread_mutex_unlock(&tog_mutex);
	break;
}

if (done)
	a->commits_needed = 0;
else {
	if (a->commits_needed == 0) {
		errcode = pthread_cond_wait(&a->need_commits,
		    &tog_mutex);
		if (errcode)
			err = got_error_set_errno(errcode,
			    "pthread_cond_wait");
		if (*a->quit)
			done = 1;
	}
}

errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode && err == NULL((void*)0))
	err = got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
}
a->log_complete = 1;
return (void *)err;
2085}

2087static const struct got_error *
2088stop_log_thread(struct tog_log_view_state *s)
2089{
const struct got_error *err = NULL((void*)0);
int errcode;

if (s->thread) {
s->quit = 1;
errcode = pthread_cond_signal(&s->thread_args.need_commits);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_cond_signal");
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
errcode = pthread_join(s->thread, (void **)&err);
if (errcode)
	return got_error_set_errno(errcode, "pthread_join");
errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_lock");
s->thread = NULL((void*)0);
}

if (s->thread_args.repo) {
got_repo_close(s->thread_args.repo);
s->thread_args.repo = NULL((void*)0);
}

if (s->thread_args.graph) {
got_commit_graph_close(s->thread_args.graph);
s->thread_args.graph = NULL((void*)0);
}

return err;
2124}

2126static const struct got_error *
2127close_log_view(struct tog_view *view)
2128{
const struct got_error *err = NULL((void*)0);
struct tog_log_view_state *s = &view->state.log;
int errcode;

err = stop_log_thread(s);

errcode = pthread_cond_destroy(&s->thread_args.need_commits);
if (errcode && err == NULL((void*)0))
err = got_error_set_errno(errcode, "pthread_cond_destroy");

errcode = pthread_cond_destroy(&s->thread_args.commit_loaded);
if (errcode && err == NULL((void*)0))
err = got_error_set_errno(errcode, "pthread_cond_destroy");

free_commits(&s->commits);
free(s->in_repo_path);
s->in_repo_path = NULL((void*)0);
free(s->start_id);
s->start_id = NULL((void*)0);
free(s->head_ref_name);
s->head_ref_name = NULL((void*)0);
return err;
2151}

2153static const struct got_error *
2154search_start_log_view(struct tog_view *view)
2155{
struct tog_log_view_state *s = &view->state.log;

s->matched_entry = NULL((void*)0);
s->search_entry = NULL((void*)0);
return NULL((void*)0);
2161}

2163static const struct got_error *
2164search_next_log_view(struct tog_view *view)
2165{
const struct got_error *err = NULL((void*)0);
struct tog_log_view_state *s = &view->state.log;
struct commit_queue_entry *entry;

/* Display progress update in log view. */
show_log_view(view);
update_panels();
doupdate();

if (s->search_entry) {
int errcode, ch;
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
ch = wgetch(view->window);
errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_lock");
if (ch == KEY_BACKSPACE0407) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	return NULL((void*)0);
}
if (view->searching == TOG_SEARCH_FORWARD1)
	entry = TAILQ_NEXT(s->search_entry, entry)((s->search_entry)->entry.tqe_next);
else
	entry = TAILQ_PREV(s->search_entry,(*(((struct commit_queue_head *)((s->search_entry)->entry
.tqe_prev))->tqh_last))
	    commit_queue_head, entry)(*(((struct commit_queue_head *)((s->search_entry)->entry
.tqe_prev))->tqh_last));
} else if (s->matched_entry) {
if (view->searching == TOG_SEARCH_FORWARD1)
	entry = TAILQ_NEXT(s->matched_entry, entry)((s->matched_entry)->entry.tqe_next);
else
	entry = TAILQ_PREV(s->matched_entry,(*(((struct commit_queue_head *)((s->matched_entry)->entry
.tqe_prev))->tqh_last))
	    commit_queue_head, entry)(*(((struct commit_queue_head *)((s->matched_entry)->entry
.tqe_prev))->tqh_last));
} else {
if (view->searching == TOG_SEARCH_FORWARD1)
	entry = TAILQ_FIRST(&s->commits.head)((&s->commits.head)->tqh_first);
else
	entry = TAILQ_LAST(&s->commits.head, commit_queue_head)(*(((struct commit_queue_head *)((&s->commits.head)->
tqh_last))->tqh_last));
}

while (1) {
int have_match = 0;

if (entry == NULL((void*)0)) {
	if (s->thread_args.log_complete ||
	    view->searching == TOG_SEARCH_BACKWARD2) {
		view->search_next_done =
		    (s->matched_entry == NULL((void*)0) ?
		    TOG_SEARCH_HAVE_NONE3 : TOG_SEARCH_NO_MORE2);
		s->search_entry = NULL((void*)0);
		return NULL((void*)0);
	}
	/*
	 * Poke the log thread for more commits and return,
	 * allowing the main loop to make progress. Search
	 * will resume at s->search_entry once we come back.
	 */
	s->thread_args.commits_needed++;
	return trigger_log_thread(view, 0);
}

err = match_commit(&have_match, entry->id, entry->commit,
    &view->regex);
if (err)
	break;
if (have_match) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	s->matched_entry = entry;
	break;
}

s->search_entry = entry;
if (view->searching == TOG_SEARCH_FORWARD1)
	entry = TAILQ_NEXT(entry, entry)((entry)->entry.tqe_next);
else
	entry = TAILQ_PREV(entry, commit_queue_head, entry)(*(((struct commit_queue_head *)((entry)->entry.tqe_prev))
->tqh_last));
}

if (s->matched_entry) {
int cur = s->selected_entry->idx;
while (cur < s->matched_entry->idx) {
	err = input_log_view(NULL((void*)0), view, KEY_DOWN0402);
	if (err)
		return err;
	cur++;
}
while (cur > s->matched_entry->idx) {
	err = input_log_view(NULL((void*)0), view, KEY_UP0403);
	if (err)
		return err;
	cur--;
}
}

s->search_entry = NULL((void*)0);

return NULL((void*)0);
2265}

2267static const struct got_error *
2268open_log_view(struct tog_view *view, struct got_object_id *start_id,
  struct got_repository *repo, const char *head_ref_name,
  const char *in_repo_path, int log_branches)
2271{
const struct got_error *err = NULL((void*)0);
struct tog_log_view_state *s = &view->state.log;
struct got_repository *thread_repo = NULL((void*)0);
struct got_commit_graph *thread_graph = NULL((void*)0);
int errcode;

if (in_repo_path != s->in_repo_path) {
free(s->in_repo_path);
s->in_repo_path = strdup(in_repo_path);
if (s->in_repo_path == NULL((void*)0))
	return got_error_from_errno("strdup");
}

/* The commit queue only contains commits being displayed. */
TAILQ_INIT(&s->commits.head)do { (&s->commits.head)->tqh_first = ((void*)0); (&
s->commits.head)->tqh_last = &(&s->commits.head
)->tqh_first; } while (0);
s->commits.ncommits = 0;

s->repo = repo;
if (head_ref_name) {
s->head_ref_name = strdup(head_ref_name);
if (s->head_ref_name == NULL((void*)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
}
s->start_id = got_object_id_dup(start_id);
if (s->start_id == NULL((void*)0)) {
err = got_error_from_errno("got_object_id_dup");
goto done;
}
s->log_branches = log_branches;

SIMPLEQ_INIT(&s->colors)do { (&s->colors)->sqh_first = ((void*)0); (&s->
colors)->sqh_last = &(&s->colors)->sqh_first
; } while (0);
if (has_colors() && getenv("TOG_COLORS") != NULL((void*)0)) {
err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT9,
    get_color_value("TOG_COLOR_COMMIT"));
if (err)
	goto done;
err = add_color(&s->colors, "^$", TOG_COLOR_AUTHOR10,
    get_color_value("TOG_COLOR_AUTHOR"));
if (err) {
	free_colors(&s->colors);
	goto done;
}
err = add_color(&s->colors, "^$", TOG_COLOR_DATE11,
    get_color_value("TOG_COLOR_DATE"));
if (err) {
	free_colors(&s->colors);
	goto done;
}
}

view->show = show_log_view;
view->input = input_log_view;
view->close = close_log_view;
view->search_start = search_start_log_view;
view->search_next = search_next_log_view;

err = got_repo_open(&thread_repo, got_repo_get_path(repo), NULL((void*)0));
if (err)
goto done;
err = got_commit_graph_open(&thread_graph, s->in_repo_path,
   !s->log_branches);
if (err)
goto done;
err = got_commit_graph_iter_start(thread_graph, s->start_id,
   s->repo, NULL((void*)0), NULL((void*)0));
if (err)
goto done;

errcode = pthread_cond_init(&s->thread_args.need_commits, NULL((void*)0));
if (errcode) {
err = got_error_set_errno(errcode, "pthread_cond_init");
goto done;
}
errcode = pthread_cond_init(&s->thread_args.commit_loaded, NULL((void*)0));
if (errcode) {
err = got_error_set_errno(errcode, "pthread_cond_init");
goto done;
}

s->thread_args.commits_needed = view->nlines;
s->thread_args.graph = thread_graph;
s->thread_args.commits = &s->commits;
s->thread_args.in_repo_path = s->in_repo_path;
s->thread_args.start_id = s->start_id;
s->thread_args.repo = thread_repo;
s->thread_args.log_complete = 0;
s->thread_args.quit = &s->quit;
s->thread_args.first_displayed_entry = &s->first_displayed_entry;
s->thread_args.selected_entry = &s->selected_entry;
s->thread_args.searching = &view->searching;
s->thread_args.search_next_done = &view->search_next_done;
s->thread_args.regex = &view->regex;
2366done:
if (err)
close_log_view(view);
return err;
2370}

2372static const struct got_error *
2373show_log_view(struct tog_view *view)
2374{
const struct got_error *err;
struct tog_log_view_state *s = &view->state.log;

if (s->thread == NULL((void*)0)) {
int errcode = pthread_create(&s->thread, NULL((void*)0), log_thread,
    &s->thread_args);
if (errcode)
	return got_error_set_errno(errcode, "pthread_create");
if (s->thread_args.commits_needed > 0) {
	err = trigger_log_thread(view, 1);
	if (err)
		return err;
}
}

return draw_commits(view);
2391}

2393static const struct got_error *
2394input_log_view(struct tog_view **new_view, struct tog_view *view, int ch)
2395{
const struct got_error *err = NULL((void*)0);
struct tog_log_view_state *s = &view->state.log;
struct tog_view *diff_view = NULL((void*)0), *tree_view = NULL((void*)0);
1
'tree_view' initialized to a null pointer value→
struct tog_view *ref_view = NULL((void*)0);
int begin_x = 0;

switch (ch) {
2
←
Control jumps to 'case 116:'  at line 2499→
case 'q':
s->quit = 1;
break;
case 'k':
case KEY_UP0403:
case '<':
case ',':
if (s->first_displayed_entry == NULL((void*)0))
	break;
if (s->selected > 0)
	s->selected--;
else
	log_scroll_up(s, 1);
select_commit(s);
break;
case KEY_PPAGE0523:
case CTRL('b')(('b') & 0x1f):
if (s->first_displayed_entry == NULL((void*)0))
	break;
if (TAILQ_FIRST(&s->commits.head)((&s->commits.head)->tqh_first) == s->first_displayed_entry)
	s->selected = 0;
else
	log_scroll_up(s, view->nlines - 1);
select_commit(s);
break;
case 'j':
case KEY_DOWN0402:
case '>':
case '.':
if (s->first_displayed_entry == NULL((void*)0))
	break;
if (s->selected < MIN(view->nlines - 2,((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1))
    s->commits.ncommits - 1)((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1)))
	s->selected++;
else {
	err = log_scroll_down(view, 1);
	if (err)
		break;
}
select_commit(s);
break;
case KEY_NPAGE0522:
case CTRL('f')(('f') & 0x1f): {
struct commit_queue_entry *first;
first = s->first_displayed_entry;
if (first == NULL((void*)0))
	break;
err = log_scroll_down(view, view->nlines - 1);
if (err)
	break;
if (first == s->first_displayed_entry &&
    s->selected < MIN(view->nlines - 2,((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1))
    s->commits.ncommits - 1)((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1))) {
	/* can't scroll further down */
	s->selected = MIN(view->nlines - 2,((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1))
	    s->commits.ncommits - 1)((view->nlines - 2) < (s->commits.ncommits - 1) ? (view
->nlines - 2) : (s->commits.ncommits - 1));
}
select_commit(s);
break;
}
case KEY_RESIZE0632:
if (s->selected > view->nlines - 2)
	s->selected = view->nlines - 2;
if (s->selected > s->commits.ncommits - 1)
	s->selected = s->commits.ncommits - 1;
select_commit(s);
if (s->commits.ncommits < view->nlines - 1 &&
    !s->thread_args.log_complete) {
	s->thread_args.commits_needed += (view->nlines - 1) -
	    s->commits.ncommits;
	err = trigger_log_thread(view, 1);
}
break;
case KEY_ENTER0527:
case ' ':
case '\r':
if (s->selected_entry == NULL((void*)0))
	break;
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
err = open_diff_view_for_commit(&diff_view, begin_x,
    s->selected_entry->commit, s->selected_entry->id,
    view, s->repo);
if (err)
	break;
view->focussed = 0;
diff_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, diff_view);
	view->focus_child = 1;
} else
	*new_view = diff_view;
break;
case 't':
if (s->selected_entry == NULL((void*)0))
3
←
Assuming field 'selected_entry' is not equal to NULL→
4
←
Taking false branch→
	break;
if (view_is_parent_view(view))
5
←
Taking false branch→
	begin_x = view_split_begin_x(view->begin_x);
err = browse_commit_tree(&tree_view, begin_x,
6
←
Calling 'browse_commit_tree'→
13
←
Returning from 'browse_commit_tree'→
    s->selected_entry, s->in_repo_path, s->head_ref_name,
    s->repo);
if (err)
14
←
Assuming 'err' is null→
15
←
Taking false branch→
	break;
view->focussed = 0;
tree_view->focussed = 1;
16
←
Access to field 'focussed' results in a dereference of a null pointer (loaded from variable 'tree_view')
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, tree_view);
	view->focus_child = 1;
} else
	*new_view = tree_view;
break;
case KEY_BACKSPACE0407:
case CTRL('l')(('l') & 0x1f):
case 'B':
if (ch == KEY_BACKSPACE0407 &&
    got_path_is_root_dir(s->in_repo_path))
	break;
err = stop_log_thread(s);
if (err)
	return err;
if (ch == KEY_BACKSPACE0407) {
	char *parent_path;
	err = got_path_dirname(&parent_path, s->in_repo_path);
	if (err)
		return err;
	free(s->in_repo_path);
	s->in_repo_path = parent_path;
	s->thread_args.in_repo_path = s->in_repo_path;
} else if (ch == CTRL('l')(('l') & 0x1f)) {
	struct got_object_id *start_id;
	err = got_repo_match_object_id(&start_id, NULL((void*)0),
	    s->head_ref_name ? s->head_ref_name : GOT_REF_HEAD"HEAD",
	    GOT_OBJ_TYPE_COMMIT1, &tog_refs, s->repo);
	if (err)
		return err;
	free(s->start_id);
	s->start_id = start_id;
	s->thread_args.start_id = s->start_id;
} else /* 'B' */
	s->log_branches = !s->log_branches;

err = got_repo_open(&s->thread_args.repo,
    got_repo_get_path(s->repo), NULL((void*)0));
if (err)
	return err;
tog_free_refs();
err = tog_load_refs(s->repo);
if (err)
	return err;
err = got_commit_graph_open(&s->thread_args.graph,
    s->in_repo_path, !s->log_branches);
if (err)
	return err;
err = got_commit_graph_iter_start(s->thread_args.graph,
    s->start_id, s->repo, NULL((void*)0), NULL((void*)0));
if (err)
	return err;
free_commits(&s->commits);
s->first_displayed_entry = NULL((void*)0);
s->last_displayed_entry = NULL((void*)0);
s->selected_entry = NULL((void*)0);
s->selected = 0;
s->thread_args.log_complete = 0;
s->quit = 0;
s->thread_args.commits_needed = view->nlines;
break;
case 'r':
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
ref_view = view_open(view->nlines, view->ncols,
    view->begin_y, begin_x, TOG_VIEW_REF);
if (ref_view == NULL((void*)0))
	return got_error_from_errno("view_open");
err = open_ref_view(ref_view, s->repo);
if (err) {
	view_close(ref_view);
	return err;
}
view->focussed = 0;
ref_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, ref_view);
	view->focus_child = 1;
} else
	*new_view = ref_view;
break;
default:
break;
}

return err;
2603}

2605static const struct got_error *
2606apply_unveil(const char *repo_path, const char *worktree_path)
2607{
const struct got_error *error;

2610#ifdef PROFILE
if (unveil("gmon.out", "rwc") != 0)
return got_error_from_errno2("unveil", "gmon.out");
2613#endif
if (repo_path && unveil(repo_path, "r") != 0)
return got_error_from_errno2("unveil", repo_path);

if (worktree_path && unveil(worktree_path, "rwc") != 0)
return got_error_from_errno2("unveil", worktree_path);

if (unveil(GOT_TMPDIR_STR"/tmp", "rwc") != 0)
return got_error_from_errno2("unveil", GOT_TMPDIR_STR"/tmp");

error = got_privsep_unveil_exec_helpers();
if (error != NULL((void*)0))
return error;

if (unveil(NULL((void*)0), NULL((void*)0)) != 0)
return got_error_from_errno("unveil");

return NULL((void*)0);
2631}

2633static void
2634init_curses(void)
2635{
initscr();
cbreak();
halfdelay(1); /* Do fast refresh while initial view is loading. */
noecho();
nonl();
intrflush(stdscr, FALSE0);
keypad(stdscr, TRUE1);
curs_set(0);
if (getenv("TOG_COLORS") != NULL((void*)0)) {
start_color();
use_default_colors();
}
signal(SIGWINCH28, tog_sigwinch);
signal(SIGPIPE13, tog_sigpipe);
signal(SIGCONT19, tog_sigcont);
2651}

2653static const struct got_error *
2654get_in_repo_path_from_argv0(char **in_repo_path, int argc, char *argv[],
  struct got_repository *repo, struct got_worktree *worktree)
2656{
const struct got_error *err = NULL((void*)0);

if (argc == 0) {
*in_repo_path = strdup("/");
if (*in_repo_path == NULL((void*)0))
	return got_error_from_errno("strdup");
return NULL((void*)0);
}

if (worktree) {
const char *prefix = got_worktree_get_path_prefix(worktree);
char *p;

err = got_worktree_resolve_path(&p, worktree, argv[0]);
if (err)
	return err;
if (asprintf(in_repo_path, "%s%s%s", prefix,
    (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
    p) == -1) {
	err = got_error_from_errno("asprintf");
	*in_repo_path = NULL((void*)0);
}
free(p);
} else
err = got_repo_map_path(in_repo_path, repo, argv[0]);

return err;
2684}

2686static const struct got_error *
2687cmd_log(int argc, char *argv[])
2688{
const struct got_error *error;
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
struct got_object_id *start_id = NULL((void*)0);
char *in_repo_path = NULL((void*)0), *repo_path = NULL((void*)0), *cwd = NULL((void*)0);
char *start_commit = NULL((void*)0), *label = NULL((void*)0);
struct got_reference *ref = NULL((void*)0);
const char *head_ref_name = NULL((void*)0);
int ch, log_branches = 0;
struct tog_view *view;

while ((ch = getopt(argc, argv, "bc:r:")) != -1) {
switch (ch) {
case 'b':
	log_branches = 1;
	break;
case 'c':
	start_commit = optarg;
	break;
case 'r':
	repo_path = realpath(optarg, NULL((void*)0));
	if (repo_path == NULL((void*)0))
		return got_error_from_errno2("realpath",
		    optarg);
	break;
default:
	usage_log();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc > 1)
usage_log();

if (repo_path == NULL((void*)0)) {
cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
	return got_error_from_errno("getcwd");
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
if (worktree)
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
else
	repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error != NULL((void*)0))
goto done;

error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
   repo, worktree);
if (error)
goto done;

init_curses();

error = apply_unveil(got_repo_get_path(repo),
   worktree ? got_worktree_get_root_path(worktree) : NULL((void*)0));
if (error)
goto done;

/* already loaded by tog_log_with_path()? */
if (TAILQ_EMPTY(&tog_refs)(((&tog_refs)->tqh_first) == ((void*)0))) {
error = tog_load_refs(repo);
if (error)
	goto done;
}

if (start_commit == NULL((void*)0)) {
error = got_repo_match_object_id(&start_id, &label,
    worktree ? got_worktree_get_head_ref_name(worktree) :
    GOT_REF_HEAD"HEAD", GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
if (error)
	goto done;
head_ref_name = label;
} else {
error = got_ref_open(&ref, repo, start_commit, 0);
if (error == NULL((void*)0))
	head_ref_name = got_ref_get_name(ref);
else if (error->code != GOT_ERR_NOT_REF5)
	goto done;
error = got_repo_match_object_id(&start_id, NULL((void*)0),
    start_commit, GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
if (error)
	goto done;
}

view = view_open(0, 0, 0, 0, TOG_VIEW_LOG);
if (view == NULL((void*)0)) {
error = got_error_from_errno("view_open");
goto done;
}
error = open_log_view(view, start_id, repo, head_ref_name,
   in_repo_path, log_branches);
if (error)
goto done;
if (worktree) {
/* Release work tree lock. */
got_worktree_close(worktree);
worktree = NULL((void*)0);
}
error = view_loop(view);
2801done:
free(in_repo_path);
free(repo_path);
free(cwd);
free(start_id);
free(label);
if (ref)
got_ref_close(ref);
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
tog_free_refs();
return error;
2815}

2817__dead__attribute__((__noreturn__)) static void
2818usage_diff(void)
2819{
endwin();
fprintf(stderr(&__sF[2]), "usage: %s diff [-a] [-C number] [-r repository-path] "
   "[-w] object1 object2\n", getprogname());
exit(1);
2824}

2826static int
2827match_line(const char *line, regex_t *regex, size_t nmatch,
  regmatch_t *regmatch)
2829{
return regexec(regex, line, nmatch, regmatch, 0) == 0;
2831}

2833struct tog_color *
2834match_color(struct tog_colors *colors, const char *line)
2835{
struct tog_color *tc = NULL((void*)0);

SIMPLEQ_FOREACH(tc, colors, entry)for((tc) = ((colors)->sqh_first); (tc) != ((void*)0); (tc)
 = ((tc)->entry.sqe_next)) {
if (match_line(line, &tc->regex, 0, NULL((void*)0)))
	return tc;
}

return NULL((void*)0);
2844}

2846static const struct got_error *
2847add_matched_line(int *wtotal, const char *line, int wlimit, int col_tab_align,
  WINDOW *window, regmatch_t *regmatch)
2849{
const struct got_error *err = NULL((void*)0);
wchar_t *wline;
int width;
char *s;

*wtotal = 0;

s = strndup(line, regmatch->rm_so);
if (s == NULL((void*)0))
return got_error_from_errno("strndup");

err = format_line(&wline, &width, s, wlimit, col_tab_align);
if (err) {
free(s);
return err;
}
waddwstr(window, wline)waddnwstr(window,wline,-1);
free(wline);
free(s);
wlimit -= width;
*wtotal += width;

if (wlimit > 0) {
s = strndup(line + regmatch->rm_so,
    regmatch->rm_eo - regmatch->rm_so);
if (s == NULL((void*)0)) {
	err = got_error_from_errno("strndup");
	free(s);
	return err;
}
err = format_line(&wline, &width, s, wlimit, col_tab_align);
if (err) {
	free(s);
	return err;
}
wattr_on(window, A_STANDOUT((1U) << ((8) + 8)), NULL((void*)0));
waddwstr(window, wline)waddnwstr(window,wline,-1);
wattr_off(window, A_STANDOUT((1U) << ((8) + 8)), NULL((void*)0));
free(wline);
free(s);
wlimit -= width;
*wtotal += width;
}

if (wlimit > 0 && strlen(line) > regmatch->rm_eo) {
err = format_line(&wline, &width,
    line + regmatch->rm_eo, wlimit, col_tab_align);
if (err)
	return err;
waddwstr(window, wline)waddnwstr(window,wline,-1);
free(wline);
*wtotal += width;
}

return NULL((void*)0);
2905}

2907static const struct got_error *
2908draw_file(struct tog_view *view, const char *header)
2909{
struct tog_diff_view_state *s = &view->state.diff;
regmatch_t *regmatch = &view->regmatch;
const struct got_error *err;
int nprinted = 0;
char *line;
size_t linesize = 0;
ssize_t linelen;
struct tog_color *tc;
wchar_t *wline;
int width;
int max_lines = view->nlines;
int nlines = s->nlines;
off_t line_offset;

line_offset = s->line_offsets[s->first_displayed_line - 1];
if (fseeko(s->f, line_offset, SEEK_SET0) == -1)
return got_error_from_errno("fseek");

werase(view->window);

if (header) {
if (asprintf(&line, "[%d/%d] %s",
    s->first_displayed_line - 1 + s->selected_line, nlines,
    header) == -1)
	return got_error_from_errno("asprintf");
err = format_line(&wline, &width, line, view->ncols, 0);
free(line);
if (err)
	return err;

if (view_needs_focus_indication(view))
	wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
free(wline);
wline = NULL((void*)0);
if (view_needs_focus_indication(view))
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
if (width <= view->ncols - 1)
	waddch(view->window, '\n');

if (max_lines <= 1)
	return NULL((void*)0);
max_lines--;
}

s->eof = 0;
line = NULL((void*)0);
while (max_lines > 0 && nprinted < max_lines) {
linelen = getline(&line, &linesize, s->f);
if (linelen == -1) {
	if (feof(s->f)(!__isthreaded ? (((s->f)->_flags & 0x0020) != 0) :
 (feof)(s->f))) {
		s->eof = 1;
		break;
	}
	free(line);
	return got_ferror(s->f, GOT_ERR_IO6);
}

tc = match_color(&s->colors, line);
if (tc)
	wattr_on(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (s->first_displayed_line + nprinted == s->matched_line &&
    regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
	err = add_matched_line(&width, line, view->ncols, 0,
	    view->window, regmatch);
	if (err) {
		free(line);
		return err;
	}
} else {
	err = format_line(&wline, &width, line, view->ncols, 0);
	if (err) {
		free(line);
		return err;
	}
	waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
	free(wline);
	wline = NULL((void*)0);
}
if (tc)
	wattr_off(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (width <= view->ncols - 1)
	waddch(view->window, '\n');
nprinted++;
}
free(line);
if (nprinted >= 1)
s->last_displayed_line = s->first_displayed_line +
    (nprinted - 1);
else
s->last_displayed_line = s->first_displayed_line;

view_vborder(view);

if (s->eof) {
while (nprinted < view->nlines) {
	waddch(view->window, '\n');
	nprinted++;
}

err = format_line(&wline, &width, TOG_EOF_STRING"(END)", view->ncols, 0);
if (err) {
	return err;
}

wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
free(wline);
wline = NULL((void*)0);
wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
}

return NULL((void*)0);
3025}

3027static char *
3028get_datestr(time_t *time, char *datebuf)
3029{
struct tm mytm, *tm;
char *p, *s;

tm = gmtime_r(time, &mytm);
if (tm == NULL((void*)0))
return NULL((void*)0);
s = asctime_r(tm, datebuf);
if (s == NULL((void*)0))
return NULL((void*)0);
p = strchr(s, '\n');
if (p)
*p = '\0';
return s;
3043}

3045static const struct got_error *
3046get_changed_paths(struct got_pathlist_head *paths,
  struct got_commit_object *commit, struct got_repository *repo)
3048{
const struct got_error *err = NULL((void*)0);
struct got_object_id *tree_id1 = NULL((void*)0), *tree_id2 = NULL((void*)0);
struct got_tree_object *tree1 = NULL((void*)0), *tree2 = NULL((void*)0);
struct got_object_qid *qid;

qid = SIMPLEQ_FIRST(got_object_commit_get_parent_ids(commit))((got_object_commit_get_parent_ids(commit))->sqh_first);
if (qid != NULL((void*)0)) {
struct got_commit_object *pcommit;
err = got_object_open_as_commit(&pcommit, repo,
    qid->id);
if (err)
	return err;

tree_id1 = got_object_commit_get_tree_id(pcommit);
got_object_commit_close(pcommit);

}

if (tree_id1) {
err = got_object_open_as_tree(&tree1, repo, tree_id1);
if (err)
	goto done;
}

tree_id2 = got_object_commit_get_tree_id(commit);
err = got_object_open_as_tree(&tree2, repo, tree_id2);
if (err)
goto done;

err = got_diff_tree(tree1, tree2, "", "", repo,
   got_diff_tree_collect_changed_paths, paths, 0);
3080done:
if (tree1)
got_object_tree_close(tree1);
if (tree2)
got_object_tree_close(tree2);
return err;
3086}

3088static const struct got_error *
3089add_line_offset(off_t **line_offsets, size_t *nlines, off_t off)
3090{
off_t *p;

p = reallocarray(*line_offsets, *nlines + 1, sizeof(off_t));
if (p == NULL((void*)0))
return got_error_from_errno("reallocarray");
*line_offsets = p;
(*line_offsets)[*nlines] = off;
(*nlines)++;
return NULL((void*)0);
3100}

3102static const struct got_error *
3103write_commit_info(off_t **line_offsets, size_t *nlines,
  struct got_object_id *commit_id, struct got_reflist_head *refs,
  struct got_repository *repo, FILE *outfile)
3106{
const struct got_error *err = NULL((void*)0);
char datebuf[26], *datestr;
struct got_commit_object *commit;
char *id_str = NULL((void*)0), *logmsg = NULL((void*)0), *s = NULL((void*)0), *line;
time_t committer_time;
const char *author, *committer;
char *refs_str = NULL((void*)0);
struct got_pathlist_head changed_paths;
struct got_pathlist_entry *pe;
off_t outoff = 0;
int n;

TAILQ_INIT(&changed_paths)do { (&changed_paths)->tqh_first = ((void*)0); (&changed_paths
)->tqh_last = &(&changed_paths)->tqh_first; } while
 (0);

if (refs) {
err = build_refs_str(&refs_str, refs, commit_id, repo);
if (err)
	return err;
}

err = got_object_open_as_commit(&commit, repo, commit_id);
if (err)
return err;

err = got_object_id_str(&id_str, commit_id);
if (err) {
err = got_error_from_errno("got_object_id_str");
goto done;
}

err = add_line_offset(line_offsets, nlines, 0);
if (err)
goto done;

n = fprintf(outfile, "commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
   refs_str ? refs_str : "", refs_str ? ")" : "");
if (n < 0) {
err = got_error_from_errno("fprintf");
goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
goto done;

n = fprintf(outfile, "from: %s\n",
   got_object_commit_get_author(commit));
if (n < 0) {
err = got_error_from_errno("fprintf");
goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
goto done;

committer_time = got_object_commit_get_committer_time(commit);
datestr = get_datestr(&committer_time, datebuf);
if (datestr) {
n = fprintf(outfile, "date: %s UTC\n", datestr);
if (n < 0) {
	err = got_error_from_errno("fprintf");
	goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
	goto done;
}
author = got_object_commit_get_author(commit);
committer = got_object_commit_get_committer(commit);
if (strcmp(author, committer) != 0) {
n = fprintf(outfile, "via: %s\n", committer);
if (n < 0) {
	err = got_error_from_errno("fprintf");
	goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
	goto done;
}
err = got_object_commit_get_logmsg(&logmsg, commit);
if (err)
goto done;
s = logmsg;
while ((line = strsep(&s, "\n")) != NULL((void*)0)) {
n = fprintf(outfile, "%s\n", line);
if (n < 0) {
	err = got_error_from_errno("fprintf");
	goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
	goto done;
}

err = get_changed_paths(&changed_paths, commit, repo);
if (err)
goto done;
TAILQ_FOREACH(pe, &changed_paths, entry)for((pe) = ((&changed_paths)->tqh_first); (pe) != ((void
*)0); (pe) = ((pe)->entry.tqe_next)) {
struct got_diff_changed_path *cp = pe->data;
n = fprintf(outfile, "%c  %s\n", cp->status, pe->path);
if (n < 0) {
	err = got_error_from_errno("fprintf");
	goto done;
}
outoff += n;
err = add_line_offset(line_offsets, nlines, outoff);
if (err)
	goto done;
free((char *)pe->path);
free(pe->data);
}

fputc('\n', outfile);
outoff++;
err = add_line_offset(line_offsets, nlines, outoff);
3226done:
got_pathlist_free(&changed_paths);
free(id_str);
free(logmsg);
free(refs_str);
got_object_commit_close(commit);
if (err) {
free(*line_offsets);
*line_offsets = NULL((void*)0);
*nlines = 0;
}
return err;
3238}

3240static const struct got_error *
3241create_diff(struct tog_diff_view_state *s)
3242{
const struct got_error *err = NULL((void*)0);
FILE *f = NULL((void*)0);
int obj_type;

free(s->line_offsets);
s->line_offsets = malloc(sizeof(off_t));
if (s->line_offsets == NULL((void*)0))
return got_error_from_errno("malloc");
s->nlines = 0;

f = got_opentemp();
if (f == NULL((void*)0)) {
err = got_error_from_errno("got_opentemp");
goto done;
}
if (s->f && fclose(s->f) == EOF(-1)) {
err = got_error_from_errno("fclose");
goto done;
}
s->f = f;

if (s->id1)
err = got_object_get_type(&obj_type, s->repo, s->id1);
else
err = got_object_get_type(&obj_type, s->repo, s->id2);
if (err)
goto done;

switch (obj_type) {
case GOT_OBJ_TYPE_BLOB3:
err = got_diff_objects_as_blobs(&s->line_offsets, &s->nlines,
    s->id1, s->id2, s->label1, s->label2, s->diff_context,
    s->ignore_whitespace, s->force_text_diff, s->repo, s->f);
break;
case GOT_OBJ_TYPE_TREE2:
err = got_diff_objects_as_trees(&s->line_offsets, &s->nlines,
    s->id1, s->id2, "", "", s->diff_context,
    s->ignore_whitespace, s->force_text_diff, s->repo, s->f);
break;
case GOT_OBJ_TYPE_COMMIT1: {
const struct got_object_id_queue *parent_ids;
struct got_object_qid *pid;
struct got_commit_object *commit2;
struct got_reflist_head *refs;

err = got_object_open_as_commit(&commit2, s->repo, s->id2);
if (err)
	goto done;
refs = got_reflist_object_id_map_lookup(tog_refs_idmap, s->id2);
/* Show commit info if we're diffing to a parent/root commit. */
if (s->id1 == NULL((void*)0)) {
	err = write_commit_info(&s->line_offsets, &s->nlines,
	    s->id2, refs, s->repo, s->f);
	if (err)
		goto done;
} else {
	parent_ids = got_object_commit_get_parent_ids(commit2);
	SIMPLEQ_FOREACH(pid, parent_ids, entry)for((pid) = ((parent_ids)->sqh_first); (pid) != ((void*)0)
; (pid) = ((pid)->entry.sqe_next)) {
		if (got_object_id_cmp(s->id1, pid->id) == 0) {
			err = write_commit_info(
			    &s->line_offsets, &s->nlines,
			    s->id2, refs, s->repo, s->f);
			if (err)
				goto done;
			break;
		}
	}
}
got_object_commit_close(commit2);

err = got_diff_objects_as_commits(&s->line_offsets, &s->nlines,
    s->id1, s->id2, s->diff_context, s->ignore_whitespace,
    s->force_text_diff, s->repo, s->f);
break;
}
default:
err = got_error(GOT_ERR_OBJ_TYPE11);
break;
}
if (err)
goto done;
3324done:
if (s->f && fflush(s->f) != 0 && err == NULL((void*)0))
err = got_error_from_errno("fflush");
return err;
3328}

3330static void
3331diff_view_indicate_progress(struct tog_view *view)
3332{
mvwaddstr(view->window, 0, 0, "diffing...")(wmove(view->window,0,0) == (-1) ? (-1) : waddnstr(view->
window,"diffing...",-1));
update_panels();
doupdate();
3336}

3338static const struct got_error *
3339search_start_diff_view(struct tog_view *view)
3340{
struct tog_diff_view_state *s = &view->state.diff;

s->matched_line = 0;
return NULL((void*)0);
3345}

3347static const struct got_error *
3348search_next_diff_view(struct tog_view *view)
3349{
struct tog_diff_view_state *s = &view->state.diff;
int lineno;
char *line = NULL((void*)0);
size_t linesize = 0;
ssize_t linelen;

if (!view->searching) {
view->search_next_done = TOG_SEARCH_HAVE_MORE1;
return NULL((void*)0);
}

if (s->matched_line) {
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno = s->matched_line + 1;
else
	lineno = s->matched_line - 1;
} else {
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno = 1;
else
	lineno = s->nlines;
}

while (1) {
off_t offset;

if (lineno <= 0 || lineno > s->nlines) {
	if (s->matched_line == 0) {
		view->search_next_done = TOG_SEARCH_HAVE_MORE1;
		break;
	}

	if (view->searching == TOG_SEARCH_FORWARD1)
		lineno = 1;
	else
		lineno = s->nlines;
}

offset = s->line_offsets[lineno - 1];
if (fseeko(s->f, offset, SEEK_SET0) != 0) {
	free(line);
	return got_error_from_errno("fseeko");
}
linelen = getline(&line, &linesize, s->f);
if (linelen != -1 &&
    match_line(line, &view->regex, 1, &view->regmatch)) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	s->matched_line = lineno;
	break;
}
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno++;
else
	lineno--;
}
free(line);

if (s->matched_line) {
s->first_displayed_line = s->matched_line;
s->selected_line = 1;
}

return NULL((void*)0);
3413}

3415static const struct got_error *
3416open_diff_view(struct tog_view *view, struct got_object_id *id1,
  struct got_object_id *id2, const char *label1, const char *label2,
  int diff_context, int ignore_whitespace, int force_text_diff,
  struct tog_view *log_view, struct got_repository *repo)
3420{
const struct got_error *err;
struct tog_diff_view_state *s = &view->state.diff;

if (id1 != NULL((void*)0) && id2 != NULL((void*)0)) {
   int type1, type2;
   err = got_object_get_type(&type1, repo, id1);
   if (err)
return err;
   err = got_object_get_type(&type2, repo, id2);
   if (err)
return err;

   if (type1 != type2)
return got_error(GOT_ERR_OBJ_TYPE11);
}
s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;
s->selected_line = 1;
s->repo = repo;
s->id1 = id1;
s->id2 = id2;
s->label1 = label1;
s->label2 = label2;

if (id1) {
s->id1 = got_object_id_dup(id1);
if (s->id1 == NULL((void*)0))
	return got_error_from_errno("got_object_id_dup");
} else
s->id1 = NULL((void*)0);

s->id2 = got_object_id_dup(id2);
if (s->id2 == NULL((void*)0)) {
free(s->id1);
s->id1 = NULL((void*)0);
return got_error_from_errno("got_object_id_dup");
}
s->f = NULL((void*)0);
s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;
s->diff_context = diff_context;
s->ignore_whitespace = ignore_whitespace;
s->force_text_diff = force_text_diff;
s->log_view = log_view;
s->repo = repo;

SIMPLEQ_INIT(&s->colors)do { (&s->colors)->sqh_first = ((void*)0); (&s->
colors)->sqh_last = &(&s->colors)->sqh_first
; } while (0);
if (has_colors() && getenv("TOG_COLORS") != NULL((void*)0)) {
err = add_color(&s->colors,
    "^-", TOG_COLOR_DIFF_MINUS1,
    get_color_value("TOG_COLOR_DIFF_MINUS"));
if (err)
	return err;
err = add_color(&s->colors, "^\\+",
    TOG_COLOR_DIFF_PLUS2,
    get_color_value("TOG_COLOR_DIFF_PLUS"));
if (err) {
	free_colors(&s->colors);
	return err;
}
err = add_color(&s->colors,
    "^@@", TOG_COLOR_DIFF_CHUNK_HEADER3,
    get_color_value("TOG_COLOR_DIFF_CHUNK_HEADER"));
if (err) {
	free_colors(&s->colors);
	return err;
}

err = add_color(&s->colors,
    "^(commit [0-9a-f]|(blob|file) [-+] |[MDmA]  [^ ])",
    TOG_COLOR_DIFF_META4,
    get_color_value("TOG_COLOR_DIFF_META"));
if (err) {
	free_colors(&s->colors);
	return err;
}

err = add_color(&s->colors,
    "^(from|via): ", TOG_COLOR_AUTHOR10,
    get_color_value("TOG_COLOR_AUTHOR"));
if (err) {
	free_colors(&s->colors);
	return err;
}

err = add_color(&s->colors,
    "^date: ", TOG_COLOR_DATE11,
    get_color_value("TOG_COLOR_DATE"));
if (err) {
	free_colors(&s->colors);
	return err;
}
}

if (log_view && view_is_splitscreen(view))
show_log_view(log_view); /* draw vborder */
diff_view_indicate_progress(view);

s->line_offsets = NULL((void*)0);
s->nlines = 0;
err = create_diff(s);
if (err) {
free(s->id1);
s->id1 = NULL((void*)0);
free(s->id2);
s->id2 = NULL((void*)0);
free_colors(&s->colors);
return err;
}

view->show = show_diff_view;
view->input = input_diff_view;
view->close = close_diff_view;
view->search_start = search_start_diff_view;
view->search_next = search_next_diff_view;

return NULL((void*)0);
3538}

3540static const struct got_error *
3541close_diff_view(struct tog_view *view)
3542{
const struct got_error *err = NULL((void*)0);
struct tog_diff_view_state *s = &view->state.diff;

free(s->id1);
s->id1 = NULL((void*)0);
free(s->id2);
s->id2 = NULL((void*)0);
if (s->f && fclose(s->f) == EOF(-1))
err = got_error_from_errno("fclose");
free_colors(&s->colors);
free(s->line_offsets);
s->line_offsets = NULL((void*)0);
s->nlines = 0;
return err;
3557}

3559static const struct got_error *
3560show_diff_view(struct tog_view *view)
3561{
const struct got_error *err;
struct tog_diff_view_state *s = &view->state.diff;
char *id_str1 = NULL((void*)0), *id_str2, *header;
const char *label1, *label2;

if (s->id1) {
err = got_object_id_str(&id_str1, s->id1);
if (err)
	return err;
label1 = s->label1 ? : id_str1;
} else
label1 = "/dev/null";

err = got_object_id_str(&id_str2, s->id2);
if (err)
return err;
label2 = s->label2 ? : id_str2;

if (asprintf(&header, "diff %s %s", label1, label2) == -1) {
err = got_error_from_errno("asprintf");
free(id_str1);
free(id_str2);
return err;
}
free(id_str1);
free(id_str2);

return draw_file(view, header);
3590}

3592static const struct got_error *
3593set_selected_commit(struct tog_diff_view_state *s,
  struct commit_queue_entry *entry)
3595{
const struct got_error *err;
const struct got_object_id_queue *parent_ids;
struct got_commit_object *selected_commit;
struct got_object_qid *pid;

free(s->id2);
s->id2 = got_object_id_dup(entry->id);
if (s->id2 == NULL((void*)0))
return got_error_from_errno("got_object_id_dup");

err = got_object_open_as_commit(&selected_commit, s->repo, entry->id);
if (err)
return err;
parent_ids = got_object_commit_get_parent_ids(selected_commit);
free(s->id1);
pid = SIMPLEQ_FIRST(parent_ids)((parent_ids)->sqh_first);
s->id1 = pid ? got_object_id_dup(pid->id) : NULL((void*)0);
got_object_commit_close(selected_commit);
return NULL((void*)0);
3615}

3617static const struct got_error *
3618input_diff_view(struct tog_view **new_view, struct tog_view *view, int ch)
3619{
const struct got_error *err = NULL((void*)0);
struct tog_diff_view_state *s = &view->state.diff;
struct tog_log_view_state *ls;
struct commit_queue_entry *old_selected_entry;
char *line = NULL((void*)0);
size_t linesize = 0;
ssize_t linelen;
int i;

switch (ch) {
case 'a':
case 'w':
if (ch == 'a')
	s->force_text_diff = !s->force_text_diff;
if (ch == 'w')
	s->ignore_whitespace = !s->ignore_whitespace;
wclear(view->window);
s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;
diff_view_indicate_progress(view);
err = create_diff(s);
break;
case 'k':
case KEY_UP0403:
if (s->first_displayed_line > 1)
	s->first_displayed_line--;
break;
case KEY_PPAGE0523:
case CTRL('b')(('b') & 0x1f):
if (s->first_displayed_line == 1)
	break;
i = 0;
while (i++ < view->nlines - 1 &&
    s->first_displayed_line > 1)
	s->first_displayed_line--;
break;
case 'j':
case KEY_DOWN0402:
if (!s->eof)
	s->first_displayed_line++;
break;
case KEY_NPAGE0522:
case CTRL('f')(('f') & 0x1f):
case ' ':
if (s->eof)
	break;
i = 0;
while (!s->eof && i++ < view->nlines - 1) {
	linelen = getline(&line, &linesize, s->f);
	s->first_displayed_line++;
	if (linelen == -1) {
		if (feof(s->f)(!__isthreaded ? (((s->f)->_flags & 0x0020) != 0) :
 (feof)(s->f))) {
			s->eof = 1;
		} else
			err = got_ferror(s->f, GOT_ERR_IO6);
		break;
	}
}
free(line);
break;
case '[':
if (s->diff_context > 0) {
	s->diff_context--;
	diff_view_indicate_progress(view);
	err = create_diff(s);
	if (s->first_displayed_line + view->nlines - 1 >
	    s->nlines) {
		s->first_displayed_line = 1;
		s->last_displayed_line = view->nlines;
	}
}
break;
case ']':
if (s->diff_context < GOT_DIFF_MAX_CONTEXT64) {
	s->diff_context++;
	diff_view_indicate_progress(view);
	err = create_diff(s);
}
break;
case '<':
case ',':
if (s->log_view == NULL((void*)0))
	break;
ls = &s->log_view->state.log;
old_selected_entry = ls->selected_entry;

err = input_log_view(NULL((void*)0), s->log_view, KEY_UP0403);
if (err)
	break;

if (old_selected_entry == ls->selected_entry)
	break;

err = set_selected_commit(s, ls->selected_entry);
if (err)
	break;

s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;

diff_view_indicate_progress(view);
err = create_diff(s);
break;
case '>':
case '.':
if (s->log_view == NULL((void*)0))
	break;
ls = &s->log_view->state.log;
old_selected_entry = ls->selected_entry;

err = input_log_view(NULL((void*)0), s->log_view, KEY_DOWN0402);
if (err)
	break;

if (old_selected_entry == ls->selected_entry)
	break;

err = set_selected_commit(s, ls->selected_entry);
if (err)
	break;

s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;

diff_view_indicate_progress(view);
err = create_diff(s);
break;
default:
break;
}

return err;
3752}

3754static const struct got_error *
3755cmd_diff(int argc, char *argv[])
3756{
const struct got_error *error = NULL((void*)0);
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
struct got_object_id *id1 = NULL((void*)0), *id2 = NULL((void*)0);
char *repo_path = NULL((void*)0), *cwd = NULL((void*)0);
char *id_str1 = NULL((void*)0), *id_str2 = NULL((void*)0);
char *label1 = NULL((void*)0), *label2 = NULL((void*)0);
int diff_context = 3, ignore_whitespace = 0;
int ch, force_text_diff = 0;
const char *errstr;
struct tog_view *view;

while ((ch = getopt(argc, argv, "aC:r:w")) != -1) {
switch (ch) {
case 'a':
	force_text_diff = 1;
	break;
case 'C':
	diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT64,
	    &errstr);
	if (errstr != NULL((void*)0))
		err(1, "-C option %s", errstr);
	break;
case 'r':
	repo_path = realpath(optarg, NULL((void*)0));
	if (repo_path == NULL((void*)0))
		return got_error_from_errno2("realpath",
		    optarg);
	got_path_strip_trailing_slashes(repo_path);
	break;
case 'w':
	ignore_whitespace = 1;
	break;
default:
	usage_diff();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc == 0) {
usage_diff(); /* TODO show local worktree changes */
} else if (argc == 2) {
id_str1 = argv[0];
id_str2 = argv[1];
} else
usage_diff();

if (repo_path == NULL((void*)0)) {
cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
	return got_error_from_errno("getcwd");
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
if (worktree)
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
else
	repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error)
goto done;

init_curses();

error = apply_unveil(got_repo_get_path(repo), NULL((void*)0));
if (error)
goto done;

error = tog_load_refs(repo);
if (error)
goto done;

error = got_repo_match_object_id(&id1, &label1, id_str1,
   GOT_OBJ_TYPE_ANY0, &tog_refs, repo);
if (error)
goto done;

error = got_repo_match_object_id(&id2, &label2, id_str2,
   GOT_OBJ_TYPE_ANY0, &tog_refs, repo);
if (error)
goto done;

view = view_open(0, 0, 0, 0, TOG_VIEW_DIFF);
if (view == NULL((void*)0)) {
error = got_error_from_errno("view_open");
goto done;
}
error = open_diff_view(view, id1, id2, label1, label2, diff_context,
   ignore_whitespace, force_text_diff, NULL((void*)0),  repo);
if (error)
goto done;
error = view_loop(view);
3859done:
free(label1);
free(label2);
free(repo_path);
free(cwd);
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
tog_free_refs();
return error;
3870}

3872__dead__attribute__((__noreturn__)) static void
3873usage_blame(void)
3874{
endwin();
fprintf(stderr(&__sF[2]), "usage: %s blame [-c commit] [-r repository-path] path\n",
   getprogname());
exit(1);
3879}

3881struct tog_blame_line {
int annotated;
struct got_object_id *id;
3884};

3886static const struct got_error *
3887draw_blame(struct tog_view *view)
3888{
struct tog_blame_view_state *s = &view->state.blame;
struct tog_blame *blame = &s->blame;
regmatch_t *regmatch = &view->regmatch;
const struct got_error *err;
int lineno = 0, nprinted = 0;
char *line = NULL((void*)0);
size_t linesize = 0;
ssize_t linelen;
wchar_t *wline;
int width;
struct tog_blame_line *blame_line;
struct got_object_id *prev_id = NULL((void*)0);
char *id_str;
struct tog_color *tc;

err = got_object_id_str(&id_str, s->blamed_commit->id);
if (err)
return err;

rewind(blame->f);
werase(view->window);

if (asprintf(&line, "commit %s", id_str) == -1) {
err = got_error_from_errno("asprintf");
free(id_str);
return err;
}

err = format_line(&wline, &width, line, view->ncols, 0);
free(line);
line = NULL((void*)0);
if (err)
return err;
if (view_needs_focus_indication(view))
wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
tc = get_color(&s->colors, TOG_COLOR_COMMIT9);
if (tc)
wattr_on(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (tc)
wattr_off(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (view_needs_focus_indication(view))
wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(wline);
wline = NULL((void*)0);
if (width < view->ncols - 1)
waddch(view->window, '\n');

if (asprintf(&line, "[%d/%d] %s%s",
   s->first_displayed_line - 1 + s->selected_line, blame->nlines,
   s->blame_complete ? "" : "annotating... ", s->path) == -1) {
free(id_str);
return got_error_from_errno("asprintf");
}
free(id_str);
err = format_line(&wline, &width, line, view->ncols, 0);
free(line);
line = NULL((void*)0);
if (err)
return err;
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
free(wline);
wline = NULL((void*)0);
if (width < view->ncols - 1)
waddch(view->window, '\n');

s->eof = 0;
while (nprinted < view->nlines - 2) {
linelen = getline(&line, &linesize, blame->f);
if (linelen == -1) {
	if (feof(blame->f)(!__isthreaded ? (((blame->f)->_flags & 0x0020) != 0
) : (feof)(blame->f))) {
		s->eof = 1;
		break;
	}
	free(line);
	return got_ferror(blame->f, GOT_ERR_IO6);
}
if (++lineno < s->first_displayed_line)
	continue;

if (view->focussed && nprinted == s->selected_line - 1)
	wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);

if (blame->nlines > 0) {
	blame_line = &blame->lines[lineno - 1];
	if (blame_line->annotated && prev_id &&
	    got_object_id_cmp(prev_id, blame_line->id) == 0 &&
	    !(view->focussed &&
	    nprinted == s->selected_line - 1)) {
		waddstr(view->window, "        ")waddnstr(view->window,"        ",-1);
	} else if (blame_line->annotated) {
		char *id_str;
		err = got_object_id_str(&id_str, blame_line->id);
		if (err) {
			free(line);
			return err;
		}
		tc = get_color(&s->colors, TOG_COLOR_COMMIT9);
		if (tc)
			wattr_on(view->window,
			    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
		wprintw(view->window, "%.8s", id_str);
		if (tc)
			wattr_off(view->window,
			    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
		free(id_str);
		prev_id = blame_line->id;
	} else {
		waddstr(view->window, "........")waddnstr(view->window,"........",-1);
		prev_id = NULL((void*)0);
	}
} else {
	waddstr(view->window, "........")waddnstr(view->window,"........",-1);
	prev_id = NULL((void*)0);
}

if (view->focussed && nprinted == s->selected_line - 1)
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
waddstr(view->window, " ")waddnstr(view->window," ",-1);

if (view->ncols <= 9) {
	width = 9;
	wline = wcsdup(L"");
	if (wline == NULL((void*)0)) {
		err = got_error_from_errno("wcsdup");
		free(line);
		return err;
	}
} else if (s->first_displayed_line + nprinted ==
    s->matched_line &&
    regmatch->rm_so >= 0 && regmatch->rm_so < regmatch->rm_eo) {
	err = add_matched_line(&width, line, view->ncols - 9, 9,
	    view->window, regmatch);
	if (err) {
		free(line);
		return err;
	}
	width += 9;
} else {
	err = format_line(&wline, &width, line,
	    view->ncols - 9, 9);
	waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
	free(wline);
	wline = NULL((void*)0);
	width += 9;
}

if (width <= view->ncols - 1)
	waddch(view->window, '\n');
if (++nprinted == 1)
	s->first_displayed_line = lineno;
}
free(line);
s->last_displayed_line = lineno;

view_vborder(view);

return NULL((void*)0);
4049}

4051static const struct got_error *
4052blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
4053{
const struct got_error *err = NULL((void*)0);
struct tog_blame_cb_args *a = arg;
struct tog_blame_line *line;
int errcode;

if (nlines != a->nlines ||
   (lineno != -1 && lineno < 1) || lineno > a->nlines)
return got_error(GOT_ERR_RANGE47);

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode, "pthread_mutex_lock");

if (*a->quit) {	/* user has quit the blame view */
err = got_error(GOT_ERR_ITER_COMPLETED46);
goto done;
}

if (lineno == -1)
goto done; /* no change in this commit */

line = &a->lines[lineno - 1];
if (line->annotated)
goto done;

line->id = got_object_id_dup(id);
if (line->id == NULL((void*)0)) {
err = got_error_from_errno("got_object_id_dup");
goto done;
}
line->annotated = 1;
4085done:
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
err = got_error_set_errno(errcode, "pthread_mutex_unlock");
return err;
4090}

4092static void *
4093blame_thread(void *arg)
4094{
const struct got_error *err;
struct tog_blame_thread_args *ta = arg;
struct tog_blame_cb_args *a = ta->cb_args;
int errcode;

err = block_signals_used_by_main_thread();
if (err)
return (void *)err;

err = got_blame(ta->path, a->commit_id, ta->repo,
   blame_cb, ta->cb_args, ta->cancel_cb, ta->cancel_arg);
if (err && err->code == GOT_ERR_CANCELLED49)
err = NULL((void*)0);

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
return (void *)got_error_set_errno(errcode,
    "pthread_mutex_lock");

got_repo_close(ta->repo);
ta->repo = NULL((void*)0);
*ta->complete = 1;

errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode && err == NULL((void*)0))
err = got_error_set_errno(errcode, "pthread_mutex_unlock");

return (void *)err;
4123}

4125static struct got_object_id *
4126get_selected_commit_id(struct tog_blame_line *lines, int nlines,
  int first_displayed_line, int selected_line)
4128{
struct tog_blame_line *line;

if (nlines <= 0)
return NULL((void*)0);

line = &lines[first_displayed_line - 1 + selected_line - 1];
if (!line->annotated)
return NULL((void*)0);

return line->id;
4139}

4141static const struct got_error *
4142stop_blame(struct tog_blame *blame)
4143{
const struct got_error *err = NULL((void*)0);
int i;

if (blame->thread) {
int errcode;
errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_unlock");
errcode = pthread_join(blame->thread, (void **)&err);
if (errcode)
	return got_error_set_errno(errcode, "pthread_join");
errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
	return got_error_set_errno(errcode,
	    "pthread_mutex_lock");
if (err && err->code == GOT_ERR_ITER_COMPLETED46)
	err = NULL((void*)0);
blame->thread = NULL((void*)0);
}
if (blame->thread_args.repo) {
got_repo_close(blame->thread_args.repo);
blame->thread_args.repo = NULL((void*)0);
}
if (blame->f) {
if (fclose(blame->f) == EOF(-1) && err == NULL((void*)0))
	err = got_error_from_errno("fclose");
blame->f = NULL((void*)0);
}
if (blame->lines) {
for (i = 0; i < blame->nlines; i++)
	free(blame->lines[i].id);
free(blame->lines);
blame->lines = NULL((void*)0);
}
free(blame->cb_args.commit_id);
blame->cb_args.commit_id = NULL((void*)0);

return err;
4183}

4185static const struct got_error *
4186cancel_blame_view(void *arg)
4187{
const struct got_error *err = NULL((void*)0);
int *done = arg;
int errcode;

errcode = pthread_mutex_lock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode,
    "pthread_mutex_unlock");

if (*done)
err = got_error(GOT_ERR_CANCELLED49);

errcode = pthread_mutex_unlock(&tog_mutex);
if (errcode)
return got_error_set_errno(errcode,
    "pthread_mutex_lock");

return err;
4206}

4208static const struct got_error *
4209run_blame(struct tog_view *view)
4210{
struct tog_blame_view_state *s = &view->state.blame;
struct tog_blame *blame = &s->blame;
const struct got_error *err = NULL((void*)0);
struct got_blob_object *blob = NULL((void*)0);
struct got_repository *thread_repo = NULL((void*)0);
struct got_object_id *obj_id = NULL((void*)0);
int obj_type;

err = got_object_id_by_path(&obj_id, s->repo, s->blamed_commit->id,
   s->path);
if (err)
return err;

err = got_object_get_type(&obj_type, s->repo, obj_id);
if (err)
goto done;

if (obj_type != GOT_OBJ_TYPE_BLOB3) {
err = got_error(GOT_ERR_OBJ_TYPE11);
goto done;
}

err = got_object_open_as_blob(&blob, s->repo, obj_id, 8192);
if (err)
goto done;
blame->f = got_opentemp();
if (blame->f == NULL((void*)0)) {
err = got_error_from_errno("got_opentemp");
goto done;
}
err = got_object_blob_dump_to_file(&blame->filesize, &blame->nlines,
   &blame->line_offsets, blame->f, blob);
if (err)
goto done;
if (blame->nlines == 0) {
s->blame_complete = 1;
goto done;
}

/* Don't include \n at EOF in the blame line count. */
if (blame->line_offsets[blame->nlines - 1] == blame->filesize)
blame->nlines--;

blame->lines = calloc(blame->nlines, sizeof(*blame->lines));
if (blame->lines == NULL((void*)0)) {
err = got_error_from_errno("calloc");
goto done;
}

err = got_repo_open(&thread_repo, got_repo_get_path(s->repo), NULL((void*)0));
if (err)
goto done;

blame->cb_args.view = view;
blame->cb_args.lines = blame->lines;
blame->cb_args.nlines = blame->nlines;
blame->cb_args.commit_id = got_object_id_dup(s->blamed_commit->id);
if (blame->cb_args.commit_id == NULL((void*)0)) {
err = got_error_from_errno("got_object_id_dup");
goto done;
}
blame->cb_args.quit = &s->done;

blame->thread_args.path = s->path;
blame->thread_args.repo = thread_repo;
blame->thread_args.cb_args = &blame->cb_args;
blame->thread_args.complete = &s->blame_complete;
blame->thread_args.cancel_cb = cancel_blame_view;
blame->thread_args.cancel_arg = &s->done;
s->blame_complete = 0;

if (s->first_displayed_line + view->nlines - 1 > blame->nlines) {
s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;
s->selected_line = 1;
}

4288done:
if (blob)
got_object_blob_close(blob);
free(obj_id);
if (err)
stop_blame(blame);
return err;
4295}

4297static const struct got_error *
4298open_blame_view(struct tog_view *view, char *path,
  struct got_object_id *commit_id, struct got_repository *repo)
4300{
const struct got_error *err = NULL((void*)0);
struct tog_blame_view_state *s = &view->state.blame;

SIMPLEQ_INIT(&s->blamed_commits)do { (&s->blamed_commits)->sqh_first = ((void*)0); (
&s->blamed_commits)->sqh_last = &(&s->blamed_commits
)->sqh_first; } while (0);

s->path = strdup(path);
if (s->path == NULL((void*)0))
return got_error_from_errno("strdup");

err = got_object_qid_alloc(&s->blamed_commit, commit_id);
if (err) {
free(s->path);
return err;
}

SIMPLEQ_INSERT_HEAD(&s->blamed_commits, s->blamed_commit, entry)do { if (((s->blamed_commit)->entry.sqe_next = (&s->
blamed_commits)->sqh_first) == ((void*)0)) (&s->blamed_commits
)->sqh_last = &(s->blamed_commit)->entry.sqe_next
; (&s->blamed_commits)->sqh_first = (s->blamed_commit
); } while (0);
s->first_displayed_line = 1;
s->last_displayed_line = view->nlines;
s->selected_line = 1;
s->blame_complete = 0;
s->repo = repo;
s->commit_id = commit_id;
memset(&s->blame, 0, sizeof(s->blame));

SIMPLEQ_INIT(&s->colors)do { (&s->colors)->sqh_first = ((void*)0); (&s->
colors)->sqh_last = &(&s->colors)->sqh_first
; } while (0);
if (has_colors() && getenv("TOG_COLORS") != NULL((void*)0)) {
err = add_color(&s->colors, "^", TOG_COLOR_COMMIT9,
    get_color_value("TOG_COLOR_COMMIT"));
if (err)
	return err;
}

view->show = show_blame_view;
view->input = input_blame_view;
view->close = close_blame_view;
view->search_start = search_start_blame_view;
view->search_next = search_next_blame_view;

return run_blame(view);
4340}

4342static const struct got_error *
4343close_blame_view(struct tog_view *view)
4344{
const struct got_error *err = NULL((void*)0);
struct tog_blame_view_state *s = &view->state.blame;

if (s->blame.thread)
err = stop_blame(&s->blame);

while (!SIMPLEQ_EMPTY(&s->blamed_commits)(((&s->blamed_commits)->sqh_first) == ((void*)0))) {
struct got_object_qid *blamed_commit;
blamed_commit = SIMPLEQ_FIRST(&s->blamed_commits)((&s->blamed_commits)->sqh_first);
SIMPLEQ_REMOVE_HEAD(&s->blamed_commits, entry)do { if (((&s->blamed_commits)->sqh_first = (&s
->blamed_commits)->sqh_first->entry.sqe_next) == ((void
*)0)) (&s->blamed_commits)->sqh_last = &(&s
->blamed_commits)->sqh_first; } while (0);
got_object_qid_free(blamed_commit);
}

free(s->path);
free_colors(&s->colors);

return err;
4362}

4364static const struct got_error *
4365search_start_blame_view(struct tog_view *view)
4366{
struct tog_blame_view_state *s = &view->state.blame;

s->matched_line = 0;
return NULL((void*)0);
4371}

4373static const struct got_error *
4374search_next_blame_view(struct tog_view *view)
4375{
struct tog_blame_view_state *s = &view->state.blame;
int lineno;
char *line = NULL((void*)0);
size_t linesize = 0;
ssize_t linelen;

if (!view->searching) {
view->search_next_done = TOG_SEARCH_HAVE_MORE1;
return NULL((void*)0);
}

if (s->matched_line) {
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno = s->matched_line + 1;
else
	lineno = s->matched_line - 1;
} else {
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno = 1;
else
	lineno = s->blame.nlines;
}

while (1) {
off_t offset;

if (lineno <= 0 || lineno > s->blame.nlines) {
	if (s->matched_line == 0) {
		view->search_next_done = TOG_SEARCH_HAVE_MORE1;
		break;
	}

	if (view->searching == TOG_SEARCH_FORWARD1)
		lineno = 1;
	else
		lineno = s->blame.nlines;
}

offset = s->blame.line_offsets[lineno - 1];
if (fseeko(s->blame.f, offset, SEEK_SET0) != 0) {
	free(line);
	return got_error_from_errno("fseeko");
}
linelen = getline(&line, &linesize, s->blame.f);
if (linelen != -1 &&
    match_line(line, &view->regex, 1, &view->regmatch)) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	s->matched_line = lineno;
	break;
}
if (view->searching == TOG_SEARCH_FORWARD1)
	lineno++;
else
	lineno--;
}
free(line);

if (s->matched_line) {
s->first_displayed_line = s->matched_line;
s->selected_line = 1;
}

return NULL((void*)0);
4439}

4441static const struct got_error *
4442show_blame_view(struct tog_view *view)
4443{
const struct got_error *err = NULL((void*)0);
struct tog_blame_view_state *s = &view->state.blame;
int errcode;

if (s->blame.thread == NULL((void*)0) && !s->blame_complete) {
errcode = pthread_create(&s->blame.thread, NULL((void*)0), blame_thread,
    &s->blame.thread_args);
if (errcode)
	return got_error_set_errno(errcode, "pthread_create");

halfdelay(1); /* fast refresh while annotating  */
}

if (s->blame_complete)
halfdelay(10); /* disable fast refresh */

err = draw_blame(view);

view_vborder(view);
return err;
4464}

4466static const struct got_error *
4467input_blame_view(struct tog_view **new_view, struct tog_view *view, int ch)
4468{
const struct got_error *err = NULL((void*)0), *thread_err = NULL((void*)0);
struct tog_view *diff_view;
struct tog_blame_view_state *s = &view->state.blame;
int begin_x = 0;

switch (ch) {
case 'q':
s->done = 1;
break;
case 'k':
case KEY_UP0403:
if (s->selected_line > 1)
	s->selected_line--;
else if (s->selected_line == 1 &&
    s->first_displayed_line > 1)
	s->first_displayed_line--;
break;
case KEY_PPAGE0523:
case CTRL('b')(('b') & 0x1f):
if (s->first_displayed_line == 1) {
	s->selected_line = 1;
	break;
}
if (s->first_displayed_line > view->nlines - 2)
	s->first_displayed_line -=
	    (view->nlines - 2);
else
	s->first_displayed_line = 1;
break;
case 'j':
case KEY_DOWN0402:
if (s->selected_line < view->nlines - 2 &&
    s->first_displayed_line +
    s->selected_line <= s->blame.nlines)
	s->selected_line++;
else if (s->last_displayed_line <
    s->blame.nlines)
	s->first_displayed_line++;
break;
case 'b':
case 'p': {
struct got_object_id *id = NULL((void*)0);
id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
    s->first_displayed_line, s->selected_line);
if (id == NULL((void*)0))
	break;
if (ch == 'p') {
	struct got_commit_object *commit;
	struct got_object_qid *pid;
	struct got_object_id *blob_id = NULL((void*)0);
	int obj_type;
	err = got_object_open_as_commit(&commit,
	    s->repo, id);
	if (err)
		break;
	pid = SIMPLEQ_FIRST(((got_object_commit_get_parent_ids(commit))->sqh_first)
	    got_object_commit_get_parent_ids(commit))((got_object_commit_get_parent_ids(commit))->sqh_first);
	if (pid == NULL((void*)0)) {
		got_object_commit_close(commit);
		break;
	}
	/* Check if path history ends here. */
	err = got_object_id_by_path(&blob_id, s->repo,
	    pid->id, s->path);
	if (err) {
		if (err->code == GOT_ERR_NO_TREE_ENTRY50)
			err = NULL((void*)0);
		got_object_commit_close(commit);
		break;
	}
	err = got_object_get_type(&obj_type, s->repo,
	    blob_id);
	free(blob_id);
	/* Can't blame non-blob type objects. */
	if (obj_type != GOT_OBJ_TYPE_BLOB3) {
		got_object_commit_close(commit);
		break;
	}
	err = got_object_qid_alloc(&s->blamed_commit,
	    pid->id);
	got_object_commit_close(commit);
} else {
	if (got_object_id_cmp(id,
	    s->blamed_commit->id) == 0)
		break;
	err = got_object_qid_alloc(&s->blamed_commit,
	    id);
}
if (err)
	break;
s->done = 1;
thread_err = stop_blame(&s->blame);
s->done = 0;
if (thread_err)
	break;
SIMPLEQ_INSERT_HEAD(&s->blamed_commits,do { if (((s->blamed_commit)->entry.sqe_next = (&s->
blamed_commits)->sqh_first) == ((void*)0)) (&s->blamed_commits
)->sqh_last = &(s->blamed_commit)->entry.sqe_next
; (&s->blamed_commits)->sqh_first = (s->blamed_commit
); } while (0)
    s->blamed_commit, entry)do { if (((s->blamed_commit)->entry.sqe_next = (&s->
blamed_commits)->sqh_first) == ((void*)0)) (&s->blamed_commits
)->sqh_last = &(s->blamed_commit)->entry.sqe_next
; (&s->blamed_commits)->sqh_first = (s->blamed_commit
); } while (0);
err = run_blame(view);
if (err)
	break;
break;
}
case 'B': {
struct got_object_qid *first;
first = SIMPLEQ_FIRST(&s->blamed_commits)((&s->blamed_commits)->sqh_first);
if (!got_object_id_cmp(first->id, s->commit_id))
	break;
s->done = 1;
thread_err = stop_blame(&s->blame);
s->done = 0;
if (thread_err)
	break;
SIMPLEQ_REMOVE_HEAD(&s->blamed_commits, entry)do { if (((&s->blamed_commits)->sqh_first = (&s
->blamed_commits)->sqh_first->entry.sqe_next) == ((void
*)0)) (&s->blamed_commits)->sqh_last = &(&s
->blamed_commits)->sqh_first; } while (0);
got_object_qid_free(s->blamed_commit);
s->blamed_commit =
    SIMPLEQ_FIRST(&s->blamed_commits)((&s->blamed_commits)->sqh_first);
err = run_blame(view);
if (err)
	break;
break;
}
case KEY_ENTER0527:
case '\r': {
struct got_object_id *id = NULL((void*)0);
struct got_object_qid *pid;
struct got_commit_object *commit = NULL((void*)0);
id = get_selected_commit_id(s->blame.lines, s->blame.nlines,
    s->first_displayed_line, s->selected_line);
if (id == NULL((void*)0))
	break;
err = got_object_open_as_commit(&commit, s->repo, id);
if (err)
	break;
pid = SIMPLEQ_FIRST(((got_object_commit_get_parent_ids(commit))->sqh_first)
    got_object_commit_get_parent_ids(commit))((got_object_commit_get_parent_ids(commit))->sqh_first);
if (view_is_parent_view(view))
    begin_x = view_split_begin_x(view->begin_x);
diff_view = view_open(0, 0, 0, begin_x, TOG_VIEW_DIFF);
if (diff_view == NULL((void*)0)) {
	got_object_commit_close(commit);
	err = got_error_from_errno("view_open");
	break;
}
err = open_diff_view(diff_view, pid ? pid->id : NULL((void*)0),
    id, NULL((void*)0), NULL((void*)0), 3, 0, 0, NULL((void*)0), s->repo);
got_object_commit_close(commit);
if (err) {
	view_close(diff_view);
	break;
}
view->focussed = 0;
diff_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		break;
	view_set_child(view, diff_view);
	view->focus_child = 1;
} else
	*new_view = diff_view;
if (err)
	break;
break;
}
case KEY_NPAGE0522:
case CTRL('f')(('f') & 0x1f):
case ' ':
if (s->last_displayed_line >= s->blame.nlines &&
    s->selected_line >= MIN(s->blame.nlines,((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2))
    view->nlines - 2)((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2))) {
	break;
}
if (s->last_displayed_line >= s->blame.nlines &&
    s->selected_line < view->nlines - 2) {
	s->selected_line = MIN(s->blame.nlines,((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2))
	    view->nlines - 2)((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2));
	break;
}
if (s->last_displayed_line + view->nlines - 2
    <= s->blame.nlines)
	s->first_displayed_line +=
	    view->nlines - 2;
else
	s->first_displayed_line =
	    s->blame.nlines -
	    (view->nlines - 3);
break;
case KEY_RESIZE0632:
if (s->selected_line > view->nlines - 2) {
	s->selected_line = MIN(s->blame.nlines,((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2))
	    view->nlines - 2)((s->blame.nlines) < (view->nlines - 2) ? (s->blame
.nlines) : (view->nlines - 2));
}
break;
default:
break;
}
return thread_err ? thread_err : err;
4666}

4668static const struct got_error *
4669cmd_blame(int argc, char *argv[])
4670{
const struct got_error *error;
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
char *cwd = NULL((void*)0), *repo_path = NULL((void*)0), *in_repo_path = NULL((void*)0);
char *link_target = NULL((void*)0);
struct got_object_id *commit_id = NULL((void*)0);
char *commit_id_str = NULL((void*)0);
int ch;
struct tog_view *view;

while ((ch = getopt(argc, argv, "c:r:")) != -1) {
switch (ch) {
case 'c':
	commit_id_str = optarg;
	break;
case 'r':
	repo_path = realpath(optarg, NULL((void*)0));
	if (repo_path == NULL((void*)0))
		return got_error_from_errno2("realpath",
		    optarg);
	break;
default:
	usage_blame();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc != 1)
usage_blame();

if (repo_path == NULL((void*)0)) {
cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
	return got_error_from_errno("getcwd");
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
if (worktree)
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
else
	repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error != NULL((void*)0))
goto done;

error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv, repo,
   worktree);
if (error)
goto done;

init_curses();

error = apply_unveil(got_repo_get_path(repo), NULL((void*)0));
if (error)
goto done;

error = tog_load_refs(repo);
if (error)
goto done;

if (commit_id_str == NULL((void*)0)) {
struct got_reference *head_ref;
error = got_ref_open(&head_ref, repo, worktree ?
    got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD"HEAD", 0);
if (error != NULL((void*)0))
	goto done;
error = got_ref_resolve(&commit_id, repo, head_ref);
got_ref_close(head_ref);
} else {
error = got_repo_match_object_id(&commit_id, NULL((void*)0),
    commit_id_str, GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
}
if (error != NULL((void*)0))
goto done;

view = view_open(0, 0, 0, 0, TOG_VIEW_BLAME);
if (view == NULL((void*)0)) {
error = got_error_from_errno("view_open");
goto done;
}

error = got_object_resolve_symlinks(&link_target, in_repo_path,
   commit_id, repo);
if (error)
goto done;

error = open_blame_view(view, link_target ? link_target : in_repo_path,
   commit_id, repo);
if (error)
goto done;
if (worktree) {
/* Release work tree lock. */
got_worktree_close(worktree);
worktree = NULL((void*)0);
}
error = view_loop(view);
4777done:
free(repo_path);
free(in_repo_path);
free(link_target);
free(cwd);
free(commit_id);
if (worktree)
got_worktree_close(worktree);
if (repo)
got_repo_close(repo);
tog_free_refs();
return error;
4789}

4791static const struct got_error *
4792draw_tree_entries(struct tog_view *view, const char *parent_path)
4793{
struct tog_tree_view_state *s = &view->state.tree;
const struct got_error *err = NULL((void*)0);
struct got_tree_entry *te;
wchar_t *wline;
struct tog_color *tc;
int width, n, i, nentries;
int limit = view->nlines;

s->ndisplayed = 0;

werase(view->window);

if (limit == 0)
return NULL((void*)0);

err = format_line(&wline, &width, s->tree_label, view->ncols, 0);
if (err)
return err;
if (view_needs_focus_indication(view))
wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
tc = get_color(&s->colors, TOG_COLOR_COMMIT9);
if (tc)
wattr_on(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (tc)
wattr_off(view->window,
    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (view_needs_focus_indication(view))
wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(wline);
wline = NULL((void*)0);
if (width < view->ncols - 1)
waddch(view->window, '\n');
if (--limit <= 0)
return NULL((void*)0);
err = format_line(&wline, &width, parent_path, view->ncols, 0);
if (err)
return err;
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
free(wline);
wline = NULL((void*)0);
if (width < view->ncols - 1)
waddch(view->window, '\n');
if (--limit <= 0)
return NULL((void*)0);
waddch(view->window, '\n');
if (--limit <= 0)
return NULL((void*)0);

if (s->first_displayed_entry == NULL((void*)0)) {
te = got_object_tree_get_first_entry(s->tree);
if (s->selected == 0) {
	if (view->focussed)
		wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
	s->selected_entry = NULL((void*)0);
}
waddstr(view->window, "  ..\n")waddnstr(view->window,"  ..\n",-1);	/* parent directory */
if (s->selected == 0 && view->focussed)
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
s->ndisplayed++;
if (--limit <= 0)
	return NULL((void*)0);
n = 1;
} else {
n = 0;
te = s->first_displayed_entry;
}

nentries = got_object_tree_get_nentries(s->tree);
for (i = got_tree_entry_get_index(te); i < nentries; i++) {
char *line = NULL((void*)0), *id_str = NULL((void*)0), *link_target = NULL((void*)0);
const char *modestr = "";
mode_t mode;

te = got_object_tree_get_entry(s->tree, i);
mode = got_tree_entry_get_mode(te);

if (s->show_ids) {
	err = got_object_id_str(&id_str,
	    got_tree_entry_get_id(te));
	if (err)
		return got_error_from_errno(
		    "got_object_id_str");
}
if (got_object_tree_entry_is_submodule(te))
	modestr = "$";
else if (S_ISLNK(mode)((mode & 0170000) == 0120000)) {
	int i;

	err = got_tree_entry_get_symlink_target(&link_target,
	    te, s->repo);
	if (err) {
		free(id_str);
		return err;
	}
	for (i = 0; i < strlen(link_target); i++) {
		if (!isprint((unsigned char)link_target[i]))
			link_target[i] = '?';
	}
	modestr = "@";
}
else if (S_ISDIR(mode)((mode & 0170000) == 0040000))
	modestr = "/";
else if (mode & S_IXUSR0000100)
	modestr = "*";
if (asprintf(&line, "%s  %s%s%s%s", id_str ? id_str : "",
    got_tree_entry_get_name(te), modestr,
    link_target ? " -> ": "",
    link_target ? link_target : "") == -1) {
	free(id_str);
	free(link_target);
	return got_error_from_errno("asprintf");
}
free(id_str);
free(link_target);
err = format_line(&wline, &width, line, view->ncols, 0);
if (err) {
	free(line);
	break;
}
if (n == s->selected) {
	if (view->focussed)
		wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
	s->selected_entry = te;
}
tc = match_color(&s->colors, line);
if (tc)
	wattr_on(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (tc)
	wattr_off(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (width < view->ncols - 1)
	waddch(view->window, '\n');
if (n == s->selected && view->focussed)
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(line);
free(wline);
wline = NULL((void*)0);
n++;
s->ndisplayed++;
s->last_displayed_entry = te;
if (--limit <= 0)
	break;
}

return err;
4943}

4945static void
4946tree_scroll_up(struct tog_tree_view_state *s, int maxscroll)
4947{
struct got_tree_entry *te;
int isroot = s->tree == s->root;
int i = 0;

if (s->first_displayed_entry == NULL((void*)0))
return;

te = got_tree_entry_get_prev(s->tree, s->first_displayed_entry);
while (i++ < maxscroll) {
if (te == NULL((void*)0)) {
	if (!isroot)
		s->first_displayed_entry = NULL((void*)0);
	break;
}
s->first_displayed_entry = te;
te = got_tree_entry_get_prev(s->tree, te);
}
4965}

4967static void
4968tree_scroll_down(struct tog_tree_view_state *s, int maxscroll)
4969{
struct got_tree_entry *next, *last;
int n = 0;

if (s->first_displayed_entry)
next = got_tree_entry_get_next(s->tree,
    s->first_displayed_entry);
else
next = got_object_tree_get_first_entry(s->tree);

last = s->last_displayed_entry;
while (next && last && n++ < maxscroll) {
last = got_tree_entry_get_next(s->tree, last);
if (last) {
	s->first_displayed_entry = next;
	next = got_tree_entry_get_next(s->tree, next);
}
}
4987}

4989static const struct got_error *
4990tree_entry_path(char **path, struct tog_parent_trees *parents,
  struct got_tree_entry *te)
4992{
const struct got_error *err = NULL((void*)0);
struct tog_parent_tree *pt;
size_t len = 2; /* for leading slash and NUL */

TAILQ_FOREACH(pt, parents, entry)for((pt) = ((parents)->tqh_first); (pt) != ((void*)0); (pt
) = ((pt)->entry.tqe_next))
len += strlen(got_tree_entry_get_name(pt->selected_entry))
    + 1 /* slash */;
if (te)
len += strlen(got_tree_entry_get_name(te));

*path = calloc(1, len);
if (path == NULL((void*)0))
return got_error_from_errno("calloc");

(*path)[0] = '/';
pt = TAILQ_LAST(parents, tog_parent_trees)(*(((struct tog_parent_trees *)((parents)->tqh_last))->
tqh_last));
while (pt) {
const char *name = got_tree_entry_get_name(pt->selected_entry);
if (strlcat(*path, name, len) >= len) {
	err = got_error(GOT_ERR_NO_SPACE9);
	goto done;
}
if (strlcat(*path, "/", len) >= len) {
	err = got_error(GOT_ERR_NO_SPACE9);
	goto done;
}
pt = TAILQ_PREV(pt, tog_parent_trees, entry)(*(((struct tog_parent_trees *)((pt)->entry.tqe_prev))->
tqh_last));
}
if (te) {
if (strlcat(*path, got_tree_entry_get_name(te), len) >= len) {
	err = got_error(GOT_ERR_NO_SPACE9);
	goto done;
}
}
5027done:
if (err) {
free(*path);
*path = NULL((void*)0);
}
return err;
5033}

5035static const struct got_error *
5036blame_tree_entry(struct tog_view **new_view, int begin_x,
  struct got_tree_entry *te, struct tog_parent_trees *parents,
  struct got_object_id *commit_id, struct got_repository *repo)
5039{
const struct got_error *err = NULL((void*)0);
char *path;
struct tog_view *blame_view;

*new_view = NULL((void*)0);

err = tree_entry_path(&path, parents, te);
if (err)
return err;

blame_view = view_open(0, 0, 0, begin_x, TOG_VIEW_BLAME);
if (blame_view == NULL((void*)0)) {
err = got_error_from_errno("view_open");
goto done;
}

err = open_blame_view(blame_view, path, commit_id, repo);
if (err) {
if (err->code == GOT_ERR_CANCELLED49)
	err = NULL((void*)0);
view_close(blame_view);
} else
*new_view = blame_view;
5063done:
free(path);
return err;
5066}

5068static const struct got_error *
5069log_selected_tree_entry(struct tog_view **new_view, int begin_x,
  struct tog_tree_view_state *s)
5071{
struct tog_view *log_view;
const struct got_error *err = NULL((void*)0);
char *path;

*new_view = NULL((void*)0);

log_view = view_open(0, 0, 0, begin_x, TOG_VIEW_LOG);
if (log_view == NULL((void*)0))
return got_error_from_errno("view_open");

err = tree_entry_path(&path, &s->parents, s->selected_entry);
if (err)
return err;

err = open_log_view(log_view, s->commit_id, s->repo, s->head_ref_name,
   path, 0);
if (err)
view_close(log_view);
else
*new_view = log_view;
free(path);
return err;
5094}

5096static const struct got_error *
5097open_tree_view(struct tog_view *view, struct got_tree_object *root,
  struct got_object_id *commit_id, const char *head_ref_name,
  struct got_repository *repo)
5100{
const struct got_error *err = NULL((void*)0);
char *commit_id_str = NULL((void*)0);
struct tog_tree_view_state *s = &view->state.tree;

TAILQ_INIT(&s->parents)do { (&s->parents)->tqh_first = ((void*)0); (&s
->parents)->tqh_last = &(&s->parents)->tqh_first
; } while (0);

err = got_object_id_str(&commit_id_str, commit_id);
if (err != NULL((void*)0))
goto done;

if (asprintf(&s->tree_label, "commit %s", commit_id_str) == -1) {
err = got_error_from_errno("asprintf");
goto done;
}

s->root = s->tree = root;
s->first_displayed_entry = got_object_tree_get_entry(s->tree, 0);
s->selected_entry = got_object_tree_get_entry(s->tree, 0);
s->commit_id = got_object_id_dup(commit_id);
if (s->commit_id == NULL((void*)0)) {
err = got_error_from_errno("got_object_id_dup");
goto done;
}
if (head_ref_name) {
s->head_ref_name = strdup(head_ref_name);
if (s->head_ref_name == NULL((void*)0)) {
	err = got_error_from_errno("strdup");
	goto done;
}
}
s->repo = repo;

SIMPLEQ_INIT(&s->colors)do { (&s->colors)->sqh_first = ((void*)0); (&s->
colors)->sqh_last = &(&s->colors)->sqh_first
; } while (0);

if (has_colors() && getenv("TOG_COLORS") != NULL((void*)0)) {
err = add_color(&s->colors, "\\$$",
    TOG_COLOR_TREE_SUBMODULE5,
    get_color_value("TOG_COLOR_TREE_SUBMODULE"));
if (err)
	goto done;
err = add_color(&s->colors, "@$", TOG_COLOR_TREE_SYMLINK6,
    get_color_value("TOG_COLOR_TREE_SYMLINK"));
if (err) {
	free_colors(&s->colors);
	goto done;
}
err = add_color(&s->colors, "/$",
    TOG_COLOR_TREE_DIRECTORY7,
    get_color_value("TOG_COLOR_TREE_DIRECTORY"));
if (err) {
	free_colors(&s->colors);
	goto done;
}

err = add_color(&s->colors, "\\*$",
    TOG_COLOR_TREE_EXECUTABLE8,
    get_color_value("TOG_COLOR_TREE_EXECUTABLE"));
if (err) {
	free_colors(&s->colors);
	goto done;
}

err = add_color(&s->colors, "^$", TOG_COLOR_COMMIT9,
    get_color_value("TOG_COLOR_COMMIT"));
if (err) {
	free_colors(&s->colors);
	goto done;
}
}

view->show = show_tree_view;
view->input = input_tree_view;
view->close = close_tree_view;
view->search_start = search_start_tree_view;
view->search_next = search_next_tree_view;
5176done:
free(commit_id_str);
if (err) {
free(s->tree_label);
s->tree_label = NULL((void*)0);
}
return err;
5183}

5185static const struct got_error *
5186close_tree_view(struct tog_view *view)
5187{
struct tog_tree_view_state *s = &view->state.tree;

free_colors(&s->colors);
free(s->tree_label);
s->tree_label = NULL((void*)0);
free(s->commit_id);
s->commit_id = NULL((void*)0);
free(s->head_ref_name);
s->head_ref_name = NULL((void*)0);
while (!TAILQ_EMPTY(&s->parents)(((&s->parents)->tqh_first) == ((void*)0))) {
struct tog_parent_tree *parent;
parent = TAILQ_FIRST(&s->parents)((&s->parents)->tqh_first);
TAILQ_REMOVE(&s->parents, parent, entry)do { if (((parent)->entry.tqe_next) != ((void*)0)) (parent
)->entry.tqe_next->entry.tqe_prev = (parent)->entry.
tqe_prev; else (&s->parents)->tqh_last = (parent)->
entry.tqe_prev; *(parent)->entry.tqe_prev = (parent)->entry
.tqe_next; ; ; } while (0);
free(parent);

}
if (s->tree != s->root)
got_object_tree_close(s->tree);
got_object_tree_close(s->root);
return NULL((void*)0);
5208}

5210static const struct got_error *
5211search_start_tree_view(struct tog_view *view)
5212{
struct tog_tree_view_state *s = &view->state.tree;

s->matched_entry = NULL((void*)0);
return NULL((void*)0);
5217}

5219static int
5220match_tree_entry(struct got_tree_entry *te, regex_t *regex)
5221{
regmatch_t regmatch;

return regexec(regex, got_tree_entry_get_name(te), 1, &regmatch,
   0) == 0;
5226}

5228static const struct got_error *
5229search_next_tree_view(struct tog_view *view)
5230{
struct tog_tree_view_state *s = &view->state.tree;
struct got_tree_entry *te = NULL((void*)0);

if (!view->searching) {
view->search_next_done = TOG_SEARCH_HAVE_MORE1;
return NULL((void*)0);
}

if (s->matched_entry) {
if (view->searching == TOG_SEARCH_FORWARD1) {
	if (s->selected_entry)
		te = got_tree_entry_get_next(s->tree,
		    s->selected_entry);
	else
		te = got_object_tree_get_first_entry(s->tree);
} else {
	if (s->selected_entry == NULL((void*)0))
		te = got_object_tree_get_last_entry(s->tree);
	else
		te = got_tree_entry_get_prev(s->tree,
		    s->selected_entry);
}
} else {
if (view->searching == TOG_SEARCH_FORWARD1)
	te = got_object_tree_get_first_entry(s->tree);
else
	te = got_object_tree_get_last_entry(s->tree);
}

while (1) {
if (te == NULL((void*)0)) {
	if (s->matched_entry == NULL((void*)0)) {
		view->search_next_done = TOG_SEARCH_HAVE_MORE1;
		return NULL((void*)0);
	}
	if (view->searching == TOG_SEARCH_FORWARD1)
		te = got_object_tree_get_first_entry(s->tree);
	else
		te = got_object_tree_get_last_entry(s->tree);
}

if (match_tree_entry(te, &view->regex)) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	s->matched_entry = te;
	break;
}

if (view->searching == TOG_SEARCH_FORWARD1)
	te = got_tree_entry_get_next(s->tree, te);
else
	te = got_tree_entry_get_prev(s->tree, te);
}

if (s->matched_entry) {
s->first_displayed_entry = s->matched_entry;
s->selected = 0;
}

return NULL((void*)0);
5290}

5292static const struct got_error *
5293show_tree_view(struct tog_view *view)
5294{
const struct got_error *err = NULL((void*)0);
struct tog_tree_view_state *s = &view->state.tree;
char *parent_path;

err = tree_entry_path(&parent_path, &s->parents, NULL((void*)0));
if (err)
return err;

err = draw_tree_entries(view, parent_path);
free(parent_path);

view_vborder(view);
return err;
5308}

5310static const struct got_error *
5311input_tree_view(struct tog_view **new_view, struct tog_view *view, int ch)
5312{
const struct got_error *err = NULL((void*)0);
struct tog_tree_view_state *s = &view->state.tree;
struct tog_view *log_view, *ref_view;
int begin_x = 0;

switch (ch) {
case 'i':
s->show_ids = !s->show_ids;
break;
case 'l':
if (!s->selected_entry)
	break;
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
err = log_selected_tree_entry(&log_view, begin_x, s);
view->focussed = 0;
log_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, log_view);
	view->focus_child = 1;
} else
	*new_view = log_view;
break;
case 'r':
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
ref_view = view_open(view->nlines, view->ncols,
    view->begin_y, begin_x, TOG_VIEW_REF);
if (ref_view == NULL((void*)0))
	return got_error_from_errno("view_open");
err = open_ref_view(ref_view, s->repo);
if (err) {
	view_close(ref_view);
	return err;
}
view->focussed = 0;
ref_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, ref_view);
	view->focus_child = 1;
} else
	*new_view = ref_view;
break;
case 'k':
case KEY_UP0403:
if (s->selected > 0) {
	s->selected--;
	break;
}
tree_scroll_up(s, 1);
break;
case KEY_PPAGE0523:
case CTRL('b')(('b') & 0x1f):
if (s->tree == s->root) {
	if (got_object_tree_get_first_entry(s->tree) ==
	    s->first_displayed_entry)
		s->selected = 0;
} else {
	if (s->first_displayed_entry == NULL((void*)0))
		s->selected = 0;
}
tree_scroll_up(s, MAX(0, view->nlines - 3)((0) > (view->nlines - 3) ? (0) : (view->nlines - 3)
));
break;
case 'j':
case KEY_DOWN0402:
if (s->selected < s->ndisplayed - 1) {
	s->selected++;
	break;
}
if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
    == NULL((void*)0))
	/* can't scroll any further */
	break;
tree_scroll_down(s, 1);
break;
case KEY_NPAGE0522:
case CTRL('f')(('f') & 0x1f):
if (got_tree_entry_get_next(s->tree, s->last_displayed_entry)
    == NULL((void*)0)) {
	/* can't scroll any further; move cursor down */
	if (s->selected < s->ndisplayed - 1)
		s->selected = s->ndisplayed - 1;
	break;
}
tree_scroll_down(s, view->nlines - 3);
break;
case KEY_ENTER0527:
case '\r':
case KEY_BACKSPACE0407:
if (s->selected_entry == NULL((void*)0) || ch == KEY_BACKSPACE0407) {
	struct tog_parent_tree *parent;
	/* user selected '..' */
	if (s->tree == s->root)
		break;
	parent = TAILQ_FIRST(&s->parents)((&s->parents)->tqh_first);
	TAILQ_REMOVE(&s->parents, parent,do { if (((parent)->entry.tqe_next) != ((void*)0)) (parent
)->entry.tqe_next->entry.tqe_prev = (parent)->entry.
tqe_prev; else (&s->parents)->tqh_last = (parent)->
entry.tqe_prev; *(parent)->entry.tqe_prev = (parent)->entry
.tqe_next; ; ; } while (0)
	    entry)do { if (((parent)->entry.tqe_next) != ((void*)0)) (parent
)->entry.tqe_next->entry.tqe_prev = (parent)->entry.
tqe_prev; else (&s->parents)->tqh_last = (parent)->
entry.tqe_prev; *(parent)->entry.tqe_prev = (parent)->entry
.tqe_next; ; ; } while (0);
	got_object_tree_close(s->tree);
	s->tree = parent->tree;
	s->first_displayed_entry =
	    parent->first_displayed_entry;
	s->selected_entry =
	    parent->selected_entry;
	s->selected = parent->selected;
	free(parent);
} else if (S_ISDIR(got_tree_entry_get_mode(((got_tree_entry_get_mode( s->selected_entry) & 0170000
) == 0040000)
    s->selected_entry))((got_tree_entry_get_mode( s->selected_entry) & 0170000
) == 0040000)) {
	struct got_tree_object *subtree;
	err = got_object_open_as_tree(&subtree, s->repo,
	    got_tree_entry_get_id(s->selected_entry));
	if (err)
		break;
	err = tree_view_visit_subtree(s, subtree);
	if (err) {
		got_object_tree_close(subtree);
		break;
	}
} else if (S_ISREG(got_tree_entry_get_mode(((got_tree_entry_get_mode( s->selected_entry) & 0170000
) == 0100000)
    s->selected_entry))((got_tree_entry_get_mode( s->selected_entry) & 0170000
) == 0100000)) {
	struct tog_view *blame_view;
	int begin_x = view_is_parent_view(view) ?
	    view_split_begin_x(view->begin_x) : 0;

	err = blame_tree_entry(&blame_view, begin_x,
	    s->selected_entry, &s->parents,
	    s->commit_id, s->repo);
	if (err)
		break;
	view->focussed = 0;
	blame_view->focussed = 1;
	if (view_is_parent_view(view)) {
		err = view_close_child(view);
		if (err)
			return err;
		view_set_child(view, blame_view);
		view->focus_child = 1;
	} else
		*new_view = blame_view;
}
break;
case KEY_RESIZE0632:
if (view->nlines >= 4 && s->selected >= view->nlines - 3)
	s->selected = view->nlines - 4;
break;
default:
break;
}

return err;
5468}

5470__dead__attribute__((__noreturn__)) static void
5471usage_tree(void)
5472{
endwin();
fprintf(stderr(&__sF[2]), "usage: %s tree [-c commit] [-r repository-path] [path]\n",
   getprogname());
exit(1);
5477}

5479static const struct got_error *
5480cmd_tree(int argc, char *argv[])
5481{
const struct got_error *error;
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
char *cwd = NULL((void*)0), *repo_path = NULL((void*)0), *in_repo_path = NULL((void*)0);
struct got_object_id *commit_id = NULL((void*)0);
const char *commit_id_arg = NULL((void*)0);
char *label = NULL((void*)0);
struct got_commit_object *commit = NULL((void*)0);
struct got_tree_object *tree = NULL((void*)0);
struct got_reference *ref = NULL((void*)0);
const char *head_ref_name = NULL((void*)0);
int ch;
struct tog_view *view;

while ((ch = getopt(argc, argv, "c:r:")) != -1) {
switch (ch) {
case 'c':
	commit_id_arg = optarg;
	break;
case 'r':
	repo_path = realpath(optarg, NULL((void*)0));
	if (repo_path == NULL((void*)0))
		return got_error_from_errno2("realpath",
		    optarg);
	break;
default:
	usage_tree();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc > 1)
usage_tree();

if (repo_path == NULL((void*)0)) {
cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
	return got_error_from_errno("getcwd");
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
if (worktree)
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
else
	repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error != NULL((void*)0))
goto done;

error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
   repo, worktree);
if (error)
goto done;

init_curses();

error = apply_unveil(got_repo_get_path(repo), NULL((void*)0));
if (error)
goto done;

error = tog_load_refs(repo);
if (error)
goto done;

if (commit_id_arg == NULL((void*)0)) {
error = got_repo_match_object_id(&commit_id, &label,
    worktree ? got_worktree_get_head_ref_name(worktree) :
    GOT_REF_HEAD"HEAD", GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
if (error)
	goto done;
head_ref_name = label;
} else {
error = got_ref_open(&ref, repo, commit_id_arg, 0);
if (error == NULL((void*)0))
	head_ref_name = got_ref_get_name(ref);
else if (error->code != GOT_ERR_NOT_REF5)
	goto done;
error = got_repo_match_object_id(&commit_id, NULL((void*)0),
    commit_id_arg, GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
if (error)
	goto done;
}

error = got_object_open_as_commit(&commit, repo, commit_id);
if (error)
goto done;

error = got_object_open_as_tree(&tree, repo,
   got_object_commit_get_tree_id(commit));
if (error)
goto done;

view = view_open(0, 0, 0, 0, TOG_VIEW_TREE);
if (view == NULL((void*)0)) {
error = got_error_from_errno("view_open");
goto done;
}
error = open_tree_view(view, tree, commit_id, head_ref_name, repo);
if (error)
goto done;
if (!got_path_is_root_dir(in_repo_path)) {
error = tree_view_walk_path(&view->state.tree, commit_id,
    in_repo_path);
if (error)
	goto done;
}

if (worktree) {
/* Release work tree lock. */
got_worktree_close(worktree);
worktree = NULL((void*)0);
}
error = view_loop(view);
5605done:
free(repo_path);
free(cwd);
free(commit_id);
free(label);
if (ref)
got_ref_close(ref);
if (commit)
got_object_commit_close(commit);
if (tree)
got_object_tree_close(tree);
if (repo)
got_repo_close(repo);
tog_free_refs();
return error;
5620}

5622static const struct got_error *
5623ref_view_load_refs(struct tog_ref_view_state *s)
5624{
struct got_reflist_entry *sre;
struct tog_reflist_entry *re;

s->nrefs = 0;
TAILQ_FOREACH(sre, &tog_refs, entry)for((sre) = ((&tog_refs)->tqh_first); (sre) != ((void*
)0); (sre) = ((sre)->entry.tqe_next)) {
if (strncmp(got_ref_get_name(sre->ref), "refs/got/", 9) == 0)
	continue;

re = malloc(sizeof(*re));
if (re == NULL((void*)0))
	return got_error_from_errno("malloc");

re->ref = got_ref_dup(sre->ref);
if (re->ref == NULL((void*)0))
	return got_error_from_errno("got_ref_dup");
re->idx = s->nrefs++;
TAILQ_INSERT_TAIL(&s->refs, re, entry)do { (re)->entry.tqe_next = ((void*)0); (re)->entry.tqe_prev
 = (&s->refs)->tqh_last; *(&s->refs)->tqh_last
 = (re); (&s->refs)->tqh_last = &(re)->entry
.tqe_next; } while (0);
}

s->first_displayed_entry = TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first);
return NULL((void*)0);
5646}

5648void
5649ref_view_free_refs(struct tog_ref_view_state *s)
5650{
struct tog_reflist_entry *re;

while (!TAILQ_EMPTY(&s->refs)(((&s->refs)->tqh_first) == ((void*)0))) {
re = TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first);
TAILQ_REMOVE(&s->refs, re, entry)do { if (((re)->entry.tqe_next) != ((void*)0)) (re)->entry
.tqe_next->entry.tqe_prev = (re)->entry.tqe_prev; else (
&s->refs)->tqh_last = (re)->entry.tqe_prev; *(re
)->entry.tqe_prev = (re)->entry.tqe_next; ; ; } while (
0);
got_ref_close(re->ref);
free(re);
}
5659}

5661static const struct got_error *
5662open_ref_view(struct tog_view *view, struct got_repository *repo)
5663{
const struct got_error *err = NULL((void*)0);
struct tog_ref_view_state *s = &view->state.ref;

s->selected_entry = 0;
s->repo = repo;

TAILQ_INIT(&s->refs)do { (&s->refs)->tqh_first = ((void*)0); (&s->
refs)->tqh_last = &(&s->refs)->tqh_first; } while
 (0);
SIMPLEQ_INIT(&s->colors)do { (&s->colors)->sqh_first = ((void*)0); (&s->
colors)->sqh_last = &(&s->colors)->sqh_first
; } while (0);

err = ref_view_load_refs(s);
if (err)
return err;

if (has_colors() && getenv("TOG_COLORS") != NULL((void*)0)) {
err = add_color(&s->colors, "^refs/heads/",
    TOG_COLOR_REFS_HEADS12,
    get_color_value("TOG_COLOR_REFS_HEADS"));
if (err)
	goto done;

err = add_color(&s->colors, "^refs/tags/",
    TOG_COLOR_REFS_TAGS13,
    get_color_value("TOG_COLOR_REFS_TAGS"));
if (err)
	goto done;

err = add_color(&s->colors, "^refs/remotes/",
    TOG_COLOR_REFS_REMOTES14,
    get_color_value("TOG_COLOR_REFS_REMOTES"));
if (err)
	goto done;
}

view->show = show_ref_view;
view->input = input_ref_view;
view->close = close_ref_view;
view->search_start = search_start_ref_view;
view->search_next = search_next_ref_view;
5702done:
if (err)
free_colors(&s->colors);
return err;
5706}

5708static const struct got_error *
5709close_ref_view(struct tog_view *view)
5710{
struct tog_ref_view_state *s = &view->state.ref;

ref_view_free_refs(s);
free_colors(&s->colors);

return NULL((void*)0);
5717}

5719static const struct got_error *
5720resolve_reflist_entry(struct got_object_id **commit_id,
  struct tog_reflist_entry *re, struct got_repository *repo)
5722{
const struct got_error *err = NULL((void*)0);
struct got_object_id *obj_id;
struct got_tag_object *tag = NULL((void*)0);
int obj_type;

*commit_id = NULL((void*)0);

err = got_ref_resolve(&obj_id, repo, re->ref);
if (err)
return err;

err = got_object_get_type(&obj_type, repo, obj_id);
if (err)
goto done;

switch (obj_type) {
case GOT_OBJ_TYPE_COMMIT1:
*commit_id = obj_id;
break;
case GOT_OBJ_TYPE_TAG4:
err = got_object_open_as_tag(&tag, repo, obj_id);
if (err)
	goto done;
free(obj_id);
err = got_object_get_type(&obj_type, repo,
    got_object_tag_get_object_id(tag));
if (err)
	goto done;
if (obj_type != GOT_OBJ_TYPE_COMMIT1) {
	err = got_error(GOT_ERR_OBJ_TYPE11);
	goto done;
}
*commit_id = got_object_id_dup(
    got_object_tag_get_object_id(tag));
if (*commit_id == NULL((void*)0)) {
	err = got_error_from_errno("got_object_id_dup");
	goto done;
}
break;
default:
err = got_error(GOT_ERR_OBJ_TYPE11);
break;
}

5767done:
if (tag)
got_object_tag_close(tag);
if (err) {
free(*commit_id);
*commit_id = NULL((void*)0);
}
return err;
5775}

5777static const struct got_error *
5778log_ref_entry(struct tog_view **new_view, int begin_x,
  struct tog_reflist_entry *re, struct got_repository *repo)
5780{
struct tog_view *log_view;
const struct got_error *err = NULL((void*)0);
struct got_object_id *commit_id = NULL((void*)0);

*new_view = NULL((void*)0);

err = resolve_reflist_entry(&commit_id, re, repo);
if (err) {
if (err->code != GOT_ERR_OBJ_TYPE11)
	return err;
else
	return NULL((void*)0);
}

log_view = view_open(0, 0, 0, begin_x, TOG_VIEW_LOG);
if (log_view == NULL((void*)0)) {
err = got_error_from_errno("view_open");
goto done;
}

err = open_log_view(log_view, commit_id, repo,
   got_ref_get_name(re->ref), "", 0);
5803done:
if (err)
view_close(log_view);
else
*new_view = log_view;
free(commit_id);
return err;
5810}

5812static void
5813ref_scroll_up(struct tog_ref_view_state *s, int maxscroll)
5814{
struct tog_reflist_entry *re;
int i = 0;

if (s->first_displayed_entry == TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first))
return;

re = TAILQ_PREV(s->first_displayed_entry, tog_reflist_head, entry)(*(((struct tog_reflist_head *)((s->first_displayed_entry)
->entry.tqe_prev))->tqh_last));
while (i++ < maxscroll) {
if (re == NULL((void*)0))
	break;
s->first_displayed_entry = re;
re = TAILQ_PREV(re, tog_reflist_head, entry)(*(((struct tog_reflist_head *)((re)->entry.tqe_prev))->
tqh_last));
}
5828}

5830static void
5831ref_scroll_down(struct tog_ref_view_state *s, int maxscroll)
5832{
struct tog_reflist_entry *next, *last;
int n = 0;

if (s->first_displayed_entry)
next = TAILQ_NEXT(s->first_displayed_entry, entry)((s->first_displayed_entry)->entry.tqe_next);
else
next = TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first);

last = s->last_displayed_entry;
while (next && last && n++ < maxscroll) {
last = TAILQ_NEXT(last, entry)((last)->entry.tqe_next);
if (last) {
	s->first_displayed_entry = next;
	next = TAILQ_NEXT(next, entry)((next)->entry.tqe_next);
}
}
5849}

5851static const struct got_error *
5852search_start_ref_view(struct tog_view *view)
5853{
struct tog_ref_view_state *s = &view->state.ref;

s->matched_entry = NULL((void*)0);
return NULL((void*)0);
5858}

5860static int
5861match_reflist_entry(struct tog_reflist_entry *re, regex_t *regex)
5862{
regmatch_t regmatch;

return regexec(regex, got_ref_get_name(re->ref), 1, &regmatch,
   0) == 0;
5867}

5869static const struct got_error *
5870search_next_ref_view(struct tog_view *view)
5871{
struct tog_ref_view_state *s = &view->state.ref;
struct tog_reflist_entry *re = NULL((void*)0);

if (!view->searching) {
view->search_next_done = TOG_SEARCH_HAVE_MORE1;
return NULL((void*)0);
}

if (s->matched_entry) {
if (view->searching == TOG_SEARCH_FORWARD1) {
	if (s->selected_entry)
		re = TAILQ_NEXT(s->selected_entry, entry)((s->selected_entry)->entry.tqe_next);
	else
		re = TAILQ_PREV(s->selected_entry,(*(((struct tog_reflist_head *)((s->selected_entry)->entry
.tqe_prev))->tqh_last))
		    tog_reflist_head, entry)(*(((struct tog_reflist_head *)((s->selected_entry)->entry
.tqe_prev))->tqh_last));
} else {
	if (s->selected_entry == NULL((void*)0))
		re = TAILQ_LAST(&s->refs, tog_reflist_head)(*(((struct tog_reflist_head *)((&s->refs)->tqh_last
))->tqh_last));
	else
		re = TAILQ_PREV(s->selected_entry,(*(((struct tog_reflist_head *)((s->selected_entry)->entry
.tqe_prev))->tqh_last))
		    tog_reflist_head, entry)(*(((struct tog_reflist_head *)((s->selected_entry)->entry
.tqe_prev))->tqh_last));
}
} else {
if (view->searching == TOG_SEARCH_FORWARD1)
	re = TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first);
else
	re = TAILQ_LAST(&s->refs, tog_reflist_head)(*(((struct tog_reflist_head *)((&s->refs)->tqh_last
))->tqh_last));
}

while (1) {
if (re == NULL((void*)0)) {
	if (s->matched_entry == NULL((void*)0)) {
		view->search_next_done = TOG_SEARCH_HAVE_MORE1;
		return NULL((void*)0);
	}
	if (view->searching == TOG_SEARCH_FORWARD1)
		re = TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first);
	else
		re = TAILQ_LAST(&s->refs, tog_reflist_head)(*(((struct tog_reflist_head *)((&s->refs)->tqh_last
))->tqh_last));
}

if (match_reflist_entry(re, &view->regex)) {
	view->search_next_done = TOG_SEARCH_HAVE_MORE1;
	s->matched_entry = re;
	break;
}

if (view->searching == TOG_SEARCH_FORWARD1)
	re = TAILQ_NEXT(re, entry)((re)->entry.tqe_next);
else
	re = TAILQ_PREV(re, tog_reflist_head, entry)(*(((struct tog_reflist_head *)((re)->entry.tqe_prev))->
tqh_last));
}

if (s->matched_entry) {
s->first_displayed_entry = s->matched_entry;
s->selected = 0;
}

return NULL((void*)0);
5931}

5933static const struct got_error *
5934show_ref_view(struct tog_view *view)
5935{
const struct got_error *err = NULL((void*)0);
struct tog_ref_view_state *s = &view->state.ref;
struct tog_reflist_entry *re;
char *line = NULL((void*)0);
wchar_t *wline;
struct tog_color *tc;
int width, n;
int limit = view->nlines;

werase(view->window);

s->ndisplayed = 0;

if (limit == 0)
return NULL((void*)0);

re = s->first_displayed_entry;

if (asprintf(&line, "references [%d/%d]", re->idx + s->selected + 1,
   s->nrefs) == -1)
return got_error_from_errno("asprintf");

err = format_line(&wline, &width, line, view->ncols, 0);
if (err) {
free(line);
return err;
}
if (view_needs_focus_indication(view))
wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (view_needs_focus_indication(view))
wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(wline);
wline = NULL((void*)0);
free(line);
line = NULL((void*)0);
if (width < view->ncols - 1)
waddch(view->window, '\n');
if (--limit <= 0)
return NULL((void*)0);

n = 0;
while (re && limit > 0) {
char *line = NULL((void*)0);

if (got_ref_is_symbolic(re->ref)) {
	if (asprintf(&line, "%s -> %s",
	    got_ref_get_name(re->ref),
	    got_ref_get_symref_target(re->ref)) == -1)
		return got_error_from_errno("asprintf");
} else if (s->show_ids) {
	struct got_object_id *id;
	char *id_str;
	err = got_ref_resolve(&id, s->repo, re->ref);
	if (err)
		return err;
	err = got_object_id_str(&id_str, id);
	if (err) {
		free(id);
		return err;
	}
	if (asprintf(&line, "%s: %s",
	    got_ref_get_name(re->ref), id_str) == -1) {
		err = got_error_from_errno("asprintf");
		free(id);
		free(id_str);
		return err;
	}
	free(id);
	free(id_str);
} else {
	line = strdup(got_ref_get_name(re->ref));
	if (line == NULL((void*)0))
		return got_error_from_errno("strdup");
}

err = format_line(&wline, &width, line, view->ncols, 0);
if (err) {
	free(line);
	return err;
}
if (n == s->selected) {
	if (view->focussed)
		wstandout(view->window)(((view->window)->_attrs = (((1U) << ((8) + 8))))
);
	s->selected_entry = re;
}
tc = match_color(&s->colors, got_ref_get_name(re->ref));
if (tc)
	wattr_on(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
waddwstr(view->window, wline)waddnwstr(view->window,wline,-1);
if (tc)
	wattr_off(view->window,
	    COLOR_PAIR(tc->colorpair)((tc->colorpair) << ((0) + 8)), NULL((void*)0));
if (width < view->ncols - 1)
	waddch(view->window, '\n');
if (n == s->selected && view->focussed)
	wstandend(view->window)(((view->window)->_attrs = ((1U - 1U))));
free(line);
free(wline);
wline = NULL((void*)0);
n++;
s->ndisplayed++;
s->last_displayed_entry = re;

limit--;
re = TAILQ_NEXT(re, entry)((re)->entry.tqe_next);
}

view_vborder(view);
return err;
6047}

6049static const struct got_error *
6050browse_ref_tree(struct tog_view **new_view, int begin_x,
  struct tog_reflist_entry *re, struct got_repository *repo)
6052{
const struct got_error *err = NULL((void*)0);
struct got_object_id *commit_id = NULL((void*)0), *tree_id = NULL((void*)0);
struct got_tree_object *tree = NULL((void*)0);
struct tog_view *tree_view;

*new_view = NULL((void*)0);

err = resolve_reflist_entry(&commit_id, re, repo);
if (err) {
if (err->code != GOT_ERR_OBJ_TYPE11)
	return err;
else
	return NULL((void*)0);
}

err = got_object_id_by_path(&tree_id, repo, commit_id, "/");
if (err)
goto done;

err = got_object_open_as_tree(&tree, repo, tree_id);
if (err)
goto done;

tree_view = view_open(0, 0, 0, begin_x, TOG_VIEW_TREE);
if (tree_view == NULL((void*)0)) {
err = got_error_from_errno("view_open");
goto done;
}

err = open_tree_view(tree_view, tree, commit_id,
   got_ref_get_name(re->ref), repo);
if (err)
goto done;

*new_view = tree_view;
6088done:
free(commit_id);
free(tree_id);
if (err) {
if (tree)
	got_object_tree_close(tree);
}
return err;
6096}
6097static const struct got_error *
6098input_ref_view(struct tog_view **new_view, struct tog_view *view, int ch)
6099{
const struct got_error *err = NULL((void*)0);
struct tog_ref_view_state *s = &view->state.ref;
struct tog_view *log_view, *tree_view;
int begin_x = 0;

switch (ch) {
case 'i':
s->show_ids = !s->show_ids;
break;
case KEY_ENTER0527:
case '\r':
if (!s->selected_entry)
	break;
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
err = log_ref_entry(&log_view, begin_x, s->selected_entry,
    s->repo);
view->focussed = 0;
log_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, log_view);
	view->focus_child = 1;
} else
	*new_view = log_view;
break;
case 't':
if (!s->selected_entry)
	break;
if (view_is_parent_view(view))
	begin_x = view_split_begin_x(view->begin_x);
err = browse_ref_tree(&tree_view, begin_x, s->selected_entry,
    s->repo);
if (err || tree_view == NULL((void*)0))
	break;
view->focussed = 0;
tree_view->focussed = 1;
if (view_is_parent_view(view)) {
	err = view_close_child(view);
	if (err)
		return err;
	view_set_child(view, tree_view);
	view->focus_child = 1;
} else
	*new_view = tree_view;
break;
case 'k':
case KEY_UP0403:
if (s->selected > 0) {
	s->selected--;
	break;
}
ref_scroll_up(s, 1);
break;
case KEY_PPAGE0523:
case CTRL('b')(('b') & 0x1f):
if (s->first_displayed_entry == TAILQ_FIRST(&s->refs)((&s->refs)->tqh_first))
	s->selected = 0;
ref_scroll_up(s, MAX(0, view->nlines - 1)((0) > (view->nlines - 1) ? (0) : (view->nlines - 1)
));
break;
case 'j':
case KEY_DOWN0402:
if (s->selected < s->ndisplayed - 1) {
	s->selected++;
	break;
}
if (TAILQ_NEXT(s->last_displayed_entry, entry)((s->last_displayed_entry)->entry.tqe_next) == NULL((void*)0))
	/* can't scroll any further */
	break;
ref_scroll_down(s, 1);
break;
case KEY_NPAGE0522:
case CTRL('f')(('f') & 0x1f):
if (TAILQ_NEXT(s->last_displayed_entry, entry)((s->last_displayed_entry)->entry.tqe_next) == NULL((void*)0)) {
	/* can't scroll any further; move cursor down */
	if (s->selected < s->ndisplayed - 1)
		s->selected = s->ndisplayed - 1;
	break;
}
ref_scroll_down(s, view->nlines - 1);
break;
case CTRL('l')(('l') & 0x1f):
tog_free_refs();
err = tog_load_refs(s->repo);
if (err)
	break;
ref_view_free_refs(s);
err = ref_view_load_refs(s);
break;
case KEY_RESIZE0632:
if (view->nlines >= 2 && s->selected >= view->nlines - 1)
	s->selected = view->nlines - 2;
break;
default:
break;
}

return err;
6200}

6202__dead__attribute__((__noreturn__)) static void
6203usage_ref(void)
6204{
endwin();
fprintf(stderr(&__sF[2]), "usage: %s ref [-r repository-path]\n",
   getprogname());
exit(1);
6209}

6211static const struct got_error *
6212cmd_ref(int argc, char *argv[])
6213{
const struct got_error *error;
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
char *cwd = NULL((void*)0), *repo_path = NULL((void*)0);
int ch;
struct tog_view *view;

while ((ch = getopt(argc, argv, "r:")) != -1) {
switch (ch) {
case 'r':
	repo_path = realpath(optarg, NULL((void*)0));
	if (repo_path == NULL((void*)0))
		return got_error_from_errno2("realpath",
		    optarg);
	break;
default:
	usage_ref();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc > 1)
usage_ref();

if (repo_path == NULL((void*)0)) {
cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
	return got_error_from_errno("getcwd");
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
if (worktree)
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
else
	repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error != NULL((void*)0))
goto done;

init_curses();

error = apply_unveil(got_repo_get_path(repo), NULL((void*)0));
if (error)
goto done;

error = tog_load_refs(repo);
if (error)
goto done;

view = view_open(0, 0, 0, 0, TOG_VIEW_REF);
if (view == NULL((void*)0)) {
error = got_error_from_errno("view_open");
goto done;
}

error = open_ref_view(view, repo);
if (error)
goto done;

if (worktree) {
/* Release work tree lock. */
got_worktree_close(worktree);
worktree = NULL((void*)0);
}
error = view_loop(view);
6289done:
free(repo_path);
free(cwd);
if (repo)
got_repo_close(repo);
tog_free_refs();
return error;
6296}

6298static void
6299list_commands(FILE *fp)
6300{
size_t i;

fprintf(fp, "commands:");
for (i = 0; i < nitems(tog_commands)(sizeof((tog_commands)) / sizeof((tog_commands)[0])); i++) {
struct tog_cmd *cmd = &tog_commands[i];
fprintf(fp, " %s", cmd->name);
}
fputc('\n', fp);
6309}

6311__dead__attribute__((__noreturn__)) static void
6312usage(int hflag, int status)
6313{
FILE *fp = (status == 0) ? stdout(&__sF[1]) : stderr(&__sF[2]);

fprintf(fp, "usage: %s [-h] [-V | --version] [command] [arg ...]\n",
   getprogname());
if (hflag) {
fprintf(fp, "lazy usage: %s path\n", getprogname());
list_commands(fp);
}
exit(status);
6323}

6325static char **
6326make_argv(int argc, ...)
6327{
va_list ap;
char **argv;
int i;

va_start(ap, argc)__builtin_va_start(ap, argc);

argv = calloc(argc, sizeof(char *));
if (argv == NULL((void*)0))
err(1, "calloc");
for (i = 0; i < argc; i++) {
argv[i] = strdup(va_arg(ap, char *)__builtin_va_arg(ap, char *));
if (argv[i] == NULL((void*)0))
	err(1, "strdup");
}

va_end(ap)__builtin_va_end(ap);
return argv;
6345}

6347/*
* Try to convert 'tog path' into a 'tog log path' command.
* The user could simply have mistyped the command rather than knowingly
* provided a path. So check whether argv[0] can in fact be resolved
* to a path in the HEAD commit and print a special error if not.
* This hack is for mpi@ <3
*/
6354static const struct got_error *
6355tog_log_with_path(int argc, char *argv[])
6356{
const struct got_error *error = NULL((void*)0);
struct tog_cmd *cmd = NULL((void*)0);
struct got_repository *repo = NULL((void*)0);
struct got_worktree *worktree = NULL((void*)0);
struct got_object_id *commit_id = NULL((void*)0), *id = NULL((void*)0);
char *cwd = NULL((void*)0), *repo_path = NULL((void*)0), *in_repo_path = NULL((void*)0);
char *commit_id_str = NULL((void*)0), **cmd_argv = NULL((void*)0);

cwd = getcwd(NULL((void*)0), 0);
if (cwd == NULL((void*)0))
return got_error_from_errno("getcwd");

error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
goto done;

if (worktree)
repo_path = strdup(got_worktree_get_repo_path(worktree));
else
repo_path = strdup(cwd);
if (repo_path == NULL((void*)0)) {
error = got_error_from_errno("strdup");
goto done;
}

error = got_repo_open(&repo, repo_path, NULL((void*)0));
if (error != NULL((void*)0))
goto done;

error = get_in_repo_path_from_argv0(&in_repo_path, argc, argv,
   repo, worktree);
if (error)
goto done;

error = tog_load_refs(repo);
if (error)
goto done;
error = got_repo_match_object_id(&commit_id, NULL((void*)0), worktree ?
   got_worktree_get_head_ref_name(worktree) : GOT_REF_HEAD"HEAD",
   GOT_OBJ_TYPE_COMMIT1, &tog_refs, repo);
if (error)
goto done;

if (worktree) {
got_worktree_close(worktree);
worktree = NULL((void*)0);
}

error = got_object_id_by_path(&id, repo, commit_id, in_repo_path);
if (error) {
if (error->code != GOT_ERR_NO_TREE_ENTRY50)
	goto done;
fprintf(stderr(&__sF[2]), "%s: '%s' is no known command or path\n",
    getprogname(), argv[0]);
usage(1, 1);
/* not reached */
}

got_repo_close(repo);
repo = NULL((void*)0);

error = got_object_id_str(&commit_id_str, commit_id);
if (error)
goto done;

cmd = &tog_commands[0]; /* log */
argc = 4;
cmd_argv = make_argv(argc, cmd->name, "-c", commit_id_str, argv[0]);
error = cmd->cmd_main(argc, cmd_argv);
6426done:
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
free(id);
free(commit_id_str);
free(commit_id);
free(cwd);
free(repo_path);
free(in_repo_path);
if (cmd_argv) {
int i;
for (i = 0; i < argc; i++)
	free(cmd_argv[i]);
free(cmd_argv);
}
tog_free_refs();
return error;
6445}

6447int
6448main(int argc, char *argv[])
6449{
const struct got_error *error = NULL((void*)0);
struct tog_cmd *cmd = NULL((void*)0);
int ch, hflag = 0, Vflag = 0;
char **cmd_argv = NULL((void*)0);
static struct option longopts[] = {
   { "version", no_argument0, NULL((void*)0), 'V' },
   { NULL((void*)0), 0, NULL((void*)0), 0}
};

setlocale(LC_CTYPE2, "");

while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL((void*)0))) != -1) {
switch (ch) {
case 'h':
	hflag = 1;
	break;
case 'V':
	Vflag = 1;
	break;
default:
	usage(hflag, 1);
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;
optind = 1;
optreset = 1;

if (Vflag) {
got_version_print_str();
return 0;
}

6485#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc tty exec sendfd unveil",
   NULL((void*)0)) == -1)
err(1, "pledge");
6489#endif

if (argc == 0) {
if (hflag)
	usage(hflag, 0);
/* Build an argument vector which runs a default command. */
cmd = &tog_commands[0];
argc = 1;
cmd_argv = make_argv(argc, cmd->name);
} else {
size_t i;

/* Did the user specify a command? */
for (i = 0; i < nitems(tog_commands)(sizeof((tog_commands)) / sizeof((tog_commands)[0])); i++) {
	if (strncmp(tog_commands[i].name, argv[0],
	    strlen(argv[0])) == 0) {
		cmd = &tog_commands[i];
		break;
	}
}
}

if (cmd == NULL((void*)0)) {
if (argc != 1)
	usage(0, 1);
/* No command specified; try log with a path */
error = tog_log_with_path(argc, argv);
} else {
if (hflag)
	cmd->cmd_usage();
else
	error = cmd->cmd_main(argc, cmd_argv ? cmd_argv : argv);
}

endwin();
putchar('\n')(!__isthreaded ? __sputc('\n', (&__sF[1])) : (putc)('\n',
 (&__sF[1])));
if (cmd_argv) {
int i;
for (i = 0; i < argc; i++)
	free(cmd_argv[i]);
free(cmd_argv);
}

if (error && error->code != GOT_ERR_CANCELLED49)
fprintf(stderr(&__sF[2]), "%s: %s\n", getprogname(), error->msg);
return 0;
6535}