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

Bug Summary

File:	got/got.c
Warning:	line 896, column 2 Attempt to free released memory
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 got.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/got/../include -I /home/ben/Projects/got/got/../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/got/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/got/got.c
1/*
* Copyright (c) 2017 Martin Pieuchot <mpi@openbsd.org>
* Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
* Copyright (c) 2020 Ori Bernstein <ori@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.
*/

19#include <sys/queue.h>
20#include <sys/types.h>
21#include <sys/stat.h>
22#include <sys/param.h>
23#include <sys/wait.h>

25#include <err.h>
26#include <errno(*__errno()).h>
27#include <fcntl.h>
28#include <limits.h>
29#include <locale.h>
30#include <ctype.h>
31#include <signal.h>
32#include <stdio.h>
33#include <stdlib.h>
34#include <string.h>
35#include <unistd.h>
36#include <libgen.h>
37#include <time.h>
38#include <paths.h>
39#include <regex.h>
40#include <getopt.h>
41#include <util.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_path.h"
49#include "got_cancel.h"
50#include "got_worktree.h"
51#include "got_diff.h"
52#include "got_commit_graph.h"
53#include "got_fetch.h"
54#include "got_blame.h"
55#include "got_privsep.h"
56#include "got_opentemp.h"
57#include "got_gotconfig.h"

59#ifndef nitems
60#define nitems(_a)(sizeof((_a)) / sizeof((_a)[0]))	(sizeof((_a)) / sizeof((_a)[0]))
61#endif

63static volatile sig_atomic_t sigint_received;
64static volatile sig_atomic_t sigpipe_received;

66static void
67catch_sigint(int signo)
68{
sigint_received = 1;
70}

72static void
73catch_sigpipe(int signo)
74{
sigpipe_received = 1;
76}


79struct got_cmd {
const char	*cmd_name;
const struct got_error *(*cmd_main)(int, char *[]);
void		(*cmd_usage)(void);
const char	*cmd_alias;
84};

86__dead__attribute__((__noreturn__)) static void	usage(int, int);
87__dead__attribute__((__noreturn__)) static void	usage_init(void);
88__dead__attribute__((__noreturn__)) static void	usage_import(void);
89__dead__attribute__((__noreturn__)) static void	usage_clone(void);
90__dead__attribute__((__noreturn__)) static void	usage_fetch(void);
91__dead__attribute__((__noreturn__)) static void	usage_checkout(void);
92__dead__attribute__((__noreturn__)) static void	usage_update(void);
93__dead__attribute__((__noreturn__)) static void	usage_log(void);
94__dead__attribute__((__noreturn__)) static void	usage_diff(void);
95__dead__attribute__((__noreturn__)) static void	usage_blame(void);
96__dead__attribute__((__noreturn__)) static void	usage_tree(void);
97__dead__attribute__((__noreturn__)) static void	usage_status(void);
98__dead__attribute__((__noreturn__)) static void	usage_ref(void);
99__dead__attribute__((__noreturn__)) static void	usage_branch(void);
100__dead__attribute__((__noreturn__)) static void	usage_tag(void);
101__dead__attribute__((__noreturn__)) static void	usage_add(void);
102__dead__attribute__((__noreturn__)) static void	usage_remove(void);
103__dead__attribute__((__noreturn__)) static void	usage_revert(void);
104__dead__attribute__((__noreturn__)) static void	usage_commit(void);
105__dead__attribute__((__noreturn__)) static void	usage_cherrypick(void);
106__dead__attribute__((__noreturn__)) static void	usage_backout(void);
107__dead__attribute__((__noreturn__)) static void	usage_rebase(void);
108__dead__attribute__((__noreturn__)) static void	usage_histedit(void);
109__dead__attribute__((__noreturn__)) static void	usage_integrate(void);
110__dead__attribute__((__noreturn__)) static void	usage_stage(void);
111__dead__attribute__((__noreturn__)) static void	usage_unstage(void);
112__dead__attribute__((__noreturn__)) static void	usage_cat(void);
113__dead__attribute__((__noreturn__)) static void	usage_info(void);

115static const struct got_error*		cmd_init(int, char *[]);
116static const struct got_error*		cmd_import(int, char *[]);
117static const struct got_error*		cmd_clone(int, char *[]);
118static const struct got_error*		cmd_fetch(int, char *[]);
119static const struct got_error*		cmd_checkout(int, char *[]);
120static const struct got_error*		cmd_update(int, char *[]);
121static const struct got_error*		cmd_log(int, char *[]);
122static const struct got_error*		cmd_diff(int, char *[]);
123static const struct got_error*		cmd_blame(int, char *[]);
124static const struct got_error*		cmd_tree(int, char *[]);
125static const struct got_error*		cmd_status(int, char *[]);
126static const struct got_error*		cmd_ref(int, char *[]);
127static const struct got_error*		cmd_branch(int, char *[]);
128static const struct got_error*		cmd_tag(int, char *[]);
129static const struct got_error*		cmd_add(int, char *[]);
130static const struct got_error*		cmd_remove(int, char *[]);
131static const struct got_error*		cmd_revert(int, char *[]);
132static const struct got_error*		cmd_commit(int, char *[]);
133static const struct got_error*		cmd_cherrypick(int, char *[]);
134static const struct got_error*		cmd_backout(int, char *[]);
135static const struct got_error*		cmd_rebase(int, char *[]);
136static const struct got_error*		cmd_histedit(int, char *[]);
137static const struct got_error*		cmd_integrate(int, char *[]);
138static const struct got_error*		cmd_stage(int, char *[]);
139static const struct got_error*		cmd_unstage(int, char *[]);
140static const struct got_error*		cmd_cat(int, char *[]);
141static const struct got_error*		cmd_info(int, char *[]);

143static struct got_cmd got_commands[] = {
{ "init",	cmd_init,	usage_init,	"" },
{ "import",	cmd_import,	usage_import,	"im" },
{ "clone",	cmd_clone,	usage_clone,	"cl" },
{ "fetch",	cmd_fetch,	usage_fetch,	"fe" },
{ "checkout",	cmd_checkout,	usage_checkout,	"co" },
{ "update",	cmd_update,	usage_update,	"up" },
{ "log",	cmd_log,	usage_log,	"" },
{ "diff",	cmd_diff,	usage_diff,	"di" },
{ "blame",	cmd_blame,	usage_blame,	"bl" },
{ "tree",	cmd_tree,	usage_tree,	"tr" },
{ "status",	cmd_status,	usage_status,	"st" },
{ "ref",	cmd_ref,	usage_ref,	"" },
{ "branch",	cmd_branch,	usage_branch,	"br" },
{ "tag",	cmd_tag,	usage_tag,	"" },
{ "add",	cmd_add,	usage_add,	"" },
{ "remove",	cmd_remove,	usage_remove,	"rm" },
{ "revert",	cmd_revert,	usage_revert,	"rv" },
{ "commit",	cmd_commit,	usage_commit,	"ci" },
{ "cherrypick",	cmd_cherrypick,	usage_cherrypick, "cy" },
{ "backout",	cmd_backout,	usage_backout,	"bo" },
{ "rebase",	cmd_rebase,	usage_rebase,	"rb" },
{ "histedit",	cmd_histedit,	usage_histedit,	"he" },
{ "integrate",  cmd_integrate,  usage_integrate,"ig" },
{ "stage",	cmd_stage,	usage_stage,	"sg" },
{ "unstage",	cmd_unstage,	usage_unstage,	"ug" },
{ "cat",	cmd_cat,	usage_cat,	"" },
{ "info",	cmd_info,	usage_info,	"" },
171};

173static void
174list_commands(FILE *fp)
175{
size_t i;

fprintf(fp, "commands:");
for (i = 0; i < nitems(got_commands)(sizeof((got_commands)) / sizeof((got_commands)[0])); i++) {
struct got_cmd *cmd = &got_commands[i];
fprintf(fp, " %s", cmd->cmd_name);
}
fputc('\n', fp);
184}

186__dead__attribute__((__noreturn__)) static void
187option_conflict(char a, char b)
188{
errx(1, "-%c and -%c options are mutually exclusive", a, b);
190}

192int
193main(int argc, char *argv[])
194{
struct got_cmd *cmd;
size_t i;
int ch;
int hflag = 0, Vflag = 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;
}

if (argc <= 0)
usage(hflag, hflag ? 0 : 1);

signal(SIGINT2, catch_sigint);
signal(SIGPIPE13, catch_sigpipe);

for (i = 0; i < nitems(got_commands)(sizeof((got_commands)) / sizeof((got_commands)[0])); i++) {
const struct got_error *error;

cmd = &got_commands[i];

if (strcmp(cmd->cmd_name, argv[0]) != 0 &&
    strcmp(cmd->cmd_alias, argv[0]) != 0)
	continue;

if (hflag)
	got_commands[i].cmd_usage();

error = got_commands[i].cmd_main(argc, argv);
if (error && error->code != GOT_ERR_CANCELLED49 &&
    error->code != GOT_ERR_PRIVSEP_EXIT41 &&
    !(sigpipe_received &&
      error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EPIPE32) &&
    !(sigint_received &&
      error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EINTR4)) {
	fprintf(stderr(&__sF[2]), "%s: %s\n", getprogname(), error->msg);
	return 1;
}

return 0;
}

fprintf(stderr(&__sF[2]), "%s: unknown command '%s'\n", getprogname(), argv[0]);
list_commands(stderr(&__sF[2]));
return 1;
265}

267__dead__attribute__((__noreturn__)) static void
268usage(int hflag, int status)
269{
FILE *fp = (status == 0) ? stdout(&__sF[1]) : stderr(&__sF[2]);

fprintf(fp, "usage: %s [-h] [-V | --version] command [arg ...]\n",
   getprogname());
if (hflag)
list_commands(fp);
exit(status);
277}

279static const struct got_error *
280get_editor(char **abspath)
281{
const struct got_error *err = NULL((void *)0);
const char *editor;

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

editor = getenv("VISUAL");
if (editor == NULL((void *)0))
editor = getenv("EDITOR");

if (editor) {
err = got_path_find_prog(abspath, editor);
if (err)
	return err;
}

if (*abspath == NULL((void *)0)) {
*abspath = strdup("/bin/ed");
if (*abspath == NULL((void *)0))
	return got_error_from_errno("strdup");
}

return NULL((void *)0);
304}

306static const struct got_error *
307apply_unveil(const char *repo_path, int repo_read_only,
  const char *worktree_path)
309{
const struct got_error *err;

312#ifdef PROFILE
if (unveil("gmon.out", "rwc") != 0)
return got_error_from_errno2("unveil", "gmon.out");
315#endif
if (repo_path && unveil(repo_path, repo_read_only ? "r" : "rwc") != 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");

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

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

return NULL((void *)0);
333}

335__dead__attribute__((__noreturn__)) static void
336usage_init(void)
337{
fprintf(stderr(&__sF[2]), "usage: %s init repository-path\n", getprogname());
exit(1);
340}

342static const struct got_error *
343cmd_init(int argc, char *argv[])
344{
const struct got_error *error = NULL((void *)0);
char *repo_path = NULL((void *)0);
int ch;

while ((ch = getopt(argc, argv, "")) != -1) {
switch (ch) {
default:
	usage_init();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

360#ifndef PROFILE
if (pledge("stdio rpath wpath cpath unveil", NULL((void *)0)) == -1)
err(1, "pledge");
363#endif
if (argc != 1)
usage_init();

repo_path = strdup(argv[0]);
if (repo_path == NULL((void *)0))
return got_error_from_errno("strdup");

got_path_strip_trailing_slashes(repo_path);

error = got_path_mkdir(repo_path);
if (error &&
   !(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EEXIST17))
goto done;

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

error = got_repo_init(repo_path);
383done:
free(repo_path);
return error;
386}

388__dead__attribute__((__noreturn__)) static void
389usage_import(void)
390{
fprintf(stderr(&__sF[2]), "usage: %s import [-b branch] [-m message] "
   "[-r repository-path] [-I pattern] path\n", getprogname());
exit(1);
394}

396int
397spawn_editor(const char *editor, const char *file)
398{
pid_t pid;
sig_t sighup, sigint, sigquit;
int st = -1;

sighup = signal(SIGHUP1, SIG_IGN(void (*)(int))1);
sigint = signal(SIGINT2, SIG_IGN(void (*)(int))1);
sigquit = signal(SIGQUIT3, SIG_IGN(void (*)(int))1);

switch (pid = fork()) {
case -1:
goto doneediting;
case 0:
execl(editor, editor, file, (char *)NULL((void *)0));
_exit(127);
}

while (waitpid(pid, &st, 0) == -1)
if (errno(*__errno()) != EINTR4)
	break;

419doneediting:
(void)signal(SIGHUP1, sighup);
(void)signal(SIGINT2, sigint);
(void)signal(SIGQUIT3, sigquit);

if (!WIFEXITED(st)(((st) & 0177) == 0)) {
errno(*__errno()) = EINTR4;
return -1;
}

return WEXITSTATUS(st)(int)(((unsigned)(st) >> 8) & 0xff);
430}

432static const struct got_error *
433edit_logmsg(char **logmsg, const char *editor, const char *logmsg_path,
  const char *initial_content, size_t initial_content_len,
  int require_modification)
436{
const struct got_error *err = NULL((void *)0);
char *line = NULL((void *)0);
size_t linesize = 0;
ssize_t linelen;
struct stat st, st2;
FILE *fp = NULL((void *)0);
size_t len, logmsg_len;
char *initial_content_stripped = NULL((void *)0), *buf = NULL((void *)0), *s;

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

if (stat(logmsg_path, &st) == -1)
return got_error_from_errno2("stat", logmsg_path);

if (spawn_editor(editor, logmsg_path) == -1)
return got_error_from_errno("failed spawning editor");

if (stat(logmsg_path, &st2) == -1)
return got_error_from_errno("stat");

if (require_modification &&
   st.st_mtimest_mtim.tv_sec == st2.st_mtimest_mtim.tv_sec && st.st_size == st2.st_size)
return got_error_msg(GOT_ERR_COMMIT_MSG_EMPTY74,
    "no changes made to commit message, aborting");

/*
* Set up a stripped version of the initial content without comments
* and blank lines. We need this in order to check if the message
* has in fact been edited.
*/
initial_content_stripped = malloc(initial_content_len + 1);
if (initial_content_stripped == NULL((void *)0))
return got_error_from_errno("malloc");
initial_content_stripped[0] = '\0';

buf = strdup(initial_content);
if (buf == NULL((void *)0)) {
err = got_error_from_errno("strdup");
goto done;
}
s = buf;
len = 0;
while ((line = strsep(&s, "\n")) != NULL((void *)0)) {
if ((line[0] == '#' || (len == 0 && line[0] == '\n')))
	continue; /* remove comments and leading empty lines */
len = strlcat(initial_content_stripped, line,
    initial_content_len + 1);
if (len >= initial_content_len + 1) {
	err = got_error(GOT_ERR_NO_SPACE9);
	goto done;
}
}
while (len > 0 && initial_content_stripped[len - 1] == '\n') {
initial_content_stripped[len - 1] = '\0';
len--;
}

logmsg_len = st2.st_size;
*logmsg = malloc(logmsg_len + 1);
if (*logmsg == NULL((void *)0))
return got_error_from_errno("malloc");
(*logmsg)[0] = '\0';

fp = fopen(logmsg_path, "r");
if (fp == NULL((void *)0)) {
err = got_error_from_errno("fopen");
goto done;
}

len = 0;
while ((linelen = getline(&line, &linesize, fp)) != -1) {
if ((line[0] == '#' || (len == 0 && line[0] == '\n')))
	continue; /* remove comments and leading empty lines */
len = strlcat(*logmsg, line, logmsg_len + 1);
if (len >= logmsg_len + 1) {
	err = got_error(GOT_ERR_NO_SPACE9);
	goto done;
}
}
free(line);
if (ferror(fp)(!__isthreaded ? (((fp)->_flags & 0x0040) != 0) : (ferror
)(fp))) {
err = got_ferror(fp, GOT_ERR_IO6);
goto done;
}
while (len > 0 && (*logmsg)[len - 1] == '\n') {
(*logmsg)[len - 1] = '\0';
len--;
}

if (len == 0) {
err = got_error_msg(GOT_ERR_COMMIT_MSG_EMPTY74,
    "commit message cannot be empty, aborting");
goto done;
}
if (require_modification &&
   strcmp(*logmsg, initial_content_stripped) == 0)
err = got_error_msg(GOT_ERR_COMMIT_MSG_EMPTY74,
    "no changes made to commit message, aborting");
535done:
free(initial_content_stripped);
free(buf);
if (fp && fclose(fp) == EOF(-1) && err == NULL((void *)0))
err = got_error_from_errno("fclose");
if (err) {
free(*logmsg);
*logmsg = NULL((void *)0);
}
return err;
545}

547static const struct got_error *
548collect_import_msg(char **logmsg, char **logmsg_path, const char *editor,
  const char *path_dir, const char *branch_name)
550{
char *initial_content = NULL((void *)0);
const struct got_error *err = NULL((void *)0);
int initial_content_len;
int fd = -1;

initial_content_len = asprintf(&initial_content,
   "\n# %s to be imported to branch %s\n", path_dir,
   branch_name);
if (initial_content_len == -1)
return got_error_from_errno("asprintf");

err = got_opentemp_named_fd(logmsg_path, &fd,
   GOT_TMPDIR_STR"/tmp" "/got-importmsg");
if (err)
goto done;

if (write(fd, initial_content, initial_content_len) == -1) {
err = got_error_from_errno2("write", *logmsg_path);
goto done;
}

err = edit_logmsg(logmsg, editor, *logmsg_path, initial_content,
   initial_content_len, 1);
574done:
if (fd != -1 && close(fd) == -1 && err == NULL((void *)0))
err = got_error_from_errno2("close", *logmsg_path);
free(initial_content);
if (err) {
free(*logmsg_path);
*logmsg_path = NULL((void *)0);
}
return err;
583}

585static const struct got_error *
586import_progress(void *arg, const char *path)
587{
printf("A  %s\n", path);
return NULL((void *)0);
590}

592static const struct got_error *
593get_author(char **author, struct got_repository *repo,
  struct got_worktree *worktree)
595{
const struct got_error *err = NULL((void *)0);
const char *got_author = NULL((void *)0), *name, *email;
const struct got_gotconfig *worktree_conf = NULL((void *)0), *repo_conf = NULL((void *)0);

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

if (worktree)
worktree_conf = got_worktree_get_gotconfig(worktree);
repo_conf = got_repo_get_gotconfig(repo);

/*
* Priority of potential author information sources, from most
* significant to least significant:
* 1) work tree's .got/got.conf file
* 2) repository's got.conf file
* 3) repository's git config file
* 4) environment variables
* 5) global git config files (in user's home directory or /etc)
*/

if (worktree_conf)
got_author = got_gotconfig_get_author(worktree_conf);
if (got_author == NULL((void *)0))
got_author = got_gotconfig_get_author(repo_conf);
if (got_author == NULL((void *)0)) {
name = got_repo_get_gitconfig_author_name(repo);
email = got_repo_get_gitconfig_author_email(repo);
if (name && email) {
	if (asprintf(author, "%s <%s>", name, email) == -1)
		return got_error_from_errno("asprintf");
	return NULL((void *)0);
}

got_author = getenv("GOT_AUTHOR");
if (got_author == NULL((void *)0)) {
	name = got_repo_get_global_gitconfig_author_name(repo);
	email = got_repo_get_global_gitconfig_author_email(
	    repo);
	if (name && email) {
		if (asprintf(author, "%s <%s>", name, email)
		    == -1)
			return got_error_from_errno("asprintf");
		return NULL((void *)0);
	}
	/* TODO: Look up user in password database? */
	return got_error(GOT_ERR_COMMIT_NO_AUTHOR71);
}
}

*author = strdup(got_author);
if (*author == NULL((void *)0))
return got_error_from_errno("strdup");

/*
* Really dumb email address check; we're only doing this to
* avoid git's object parser breaking on commits we create.
*/
while (*got_author && *got_author != '<')
got_author++;
if (*got_author != '<') {
err = got_error(GOT_ERR_COMMIT_NO_EMAIL108);
goto done;
}
while (*got_author && *got_author != '@')
got_author++;
if (*got_author != '@') {
err = got_error(GOT_ERR_COMMIT_NO_EMAIL108);
goto done;
}
while (*got_author && *got_author != '>')
got_author++;
if (*got_author != '>')
err = got_error(GOT_ERR_COMMIT_NO_EMAIL108);
669done:
if (err) {
free(*author);
*author = NULL((void *)0);
}
return err;
675}

677static const struct got_error *
678get_gitconfig_path(char **gitconfig_path)
679{
const char *homedir = getenv("HOME");

*gitconfig_path = NULL((void *)0);
if (homedir) {
if (asprintf(gitconfig_path, "%s/.gitconfig", homedir) == -1)
	return got_error_from_errno("asprintf");

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

691static const struct got_error *
692cmd_import(int argc, char *argv[])
693{
const struct got_error *error = NULL((void *)0);
char *path_dir = NULL((void *)0), *repo_path = NULL((void *)0), *logmsg = NULL((void *)0);
char *gitconfig_path = NULL((void *)0), *editor = NULL((void *)0), *author = NULL((void *)0);
const char *branch_name = "main";
char *refname = NULL((void *)0), *id_str = NULL((void *)0), *logmsg_path = NULL((void *)0);
struct got_repository *repo = NULL((void *)0);
struct got_reference *branch_ref = NULL((void *)0), *head_ref = NULL((void *)0);
struct got_object_id *new_commit_id = NULL((void *)0);
int ch;
struct got_pathlist_head ignores;
struct got_pathlist_entry *pe;
int preserve_logmsg = 0;

TAILQ_INIT(&ignores)do { (&ignores)->tqh_first = ((void *)0); (&ignores
)->tqh_last = &(&ignores)->tqh_first; } while (
0);
1
Loop condition is false.  Exiting loop→

while ((ch = getopt(argc, argv, "b:m:r:I:")) != -1) {
2
←
Assuming the condition is true→
3
←
Loop condition is true.  Entering loop body→
9
←
Assuming the condition is false→
10
←
Loop condition is false. Execution continues on line 743→
switch (ch) {
4
←
Control jumps to 'case 109:'  at line 714→
case 'b':
	branch_name = optarg;
	break;
case 'm':
	logmsg = strdup(optarg);
5
←
Memory is allocated→
	if (logmsg == NULL((void *)0)) {
6
←
Assuming 'logmsg' is not equal to NULL→
7
←
Taking false branch→
		error = got_error_from_errno("strdup");
		goto done;
	}
	break;
8
←
 Execution continues on line 709→
case 'r':
	repo_path = realpath(optarg, NULL((void *)0));
	if (repo_path == NULL((void *)0)) {
		error = got_error_from_errno2("realpath",
		    optarg);
		goto done;
	}
	break;
case 'I':
	if (optarg[0] == '\0')
		break;
	error = got_pathlist_insert(&pe, &ignores, optarg,
	    NULL((void *)0));
	if (error)
		goto done;
	break;
default:
	usage_import();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

746#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd "
11
←
Assuming the condition is false→
12
←
Taking false branch→
   "unveil",
   NULL((void *)0)) == -1)
err(1, "pledge");
751#endif
if (argc != 1)
13
←
Assuming 'argc' is equal to 1→
14
←
Taking false branch→
usage_import();

if (repo_path14.1
'repo_path' is equal to NULL
 == NULL((void *)0)) {
15
←
Taking true branch→
repo_path = getcwd(NULL((void *)0), 0);
if (repo_path == NULL((void *)0))
16
←
Assuming 'repo_path' is not equal to NULL→
17
←
Taking false branch→
	return got_error_from_errno("getcwd");
}
got_path_strip_trailing_slashes(repo_path);
error = get_gitconfig_path(&gitconfig_path);
if (error17.1
'error' is null
)
18
←
Taking false branch→
goto done;
error = got_repo_open(&repo, repo_path, gitconfig_path);
if (error)
19
←
Assuming 'error' is null→
20
←
Taking false branch→
goto done;

error = get_author(&author, repo, NULL((void *)0));
if (error)
21
←
Assuming 'error' is null→
22
←
Taking false branch→
return error;

/*
* Don't let the user create a branch name with a leading '-'.
* While technically a valid reference name, this case is usually
* an unintended typo.
*/
if (branch_name[0] == '-')
23
←
Taking false branch→
return got_error_path(branch_name, GOT_ERR_REF_NAME_MINUS113);

if (asprintf(&refname, "refs/heads/%s", branch_name) == -1) {
24
←
Assuming the condition is false→
25
←
Taking false branch→
error = got_error_from_errno("asprintf");
goto done;
}

error = got_ref_open(&branch_ref, repo, refname, 0);
if (error) {
26
←
Assuming 'error' is non-null→
27
←
Taking true branch→
if (error->code != GOT_ERR_NOT_REF5)
28
←
Assuming field 'code' is equal to GOT_ERR_NOT_REF→
29
←
Taking false branch→
	goto done;
} else {
error = got_error_msg(GOT_ERR_BRANCH_EXISTS83,
    "import target branch already exists");
goto done;
}

path_dir = realpath(argv[0], NULL((void *)0));
if (path_dir == NULL((void *)0)) {
30
←
Assuming 'path_dir' is not equal to NULL→
31
←
Taking false branch→
error = got_error_from_errno2("realpath", argv[0]);
goto done;
}
got_path_strip_trailing_slashes(path_dir);

/*
* unveil(2) traverses exec(2); if an editor is used we have
* to apply unveil after the log message has been written.
*/
if (logmsg31.1
'logmsg' is not equal to NULL
 == NULL((void *)0) || strlen(logmsg) == 0) {
32
←
Assuming the condition is true→
33
←
Taking true branch→
error = get_editor(&editor);
if (error33.1
'error' is null
)
34
←
Taking false branch→
	goto done;
free(logmsg);
35
←
Memory is released→
error = collect_import_msg(&logmsg, &logmsg_path, editor,
    path_dir, refname);
if (error) {
36
←
Assuming 'error' is non-null→
37
←
Taking true branch→
	if (error->code != GOT_ERR_COMMIT_MSG_EMPTY74 &&
38
←
Assuming field 'code' is equal to GOT_ERR_COMMIT_MSG_EMPTY→
	    logmsg_path != NULL((void *)0))
		preserve_logmsg = 1;
	goto done;
39
←
Control jumps to line 891→
}
}

if (unveil(path_dir, "r") != 0) {
error = got_error_from_errno2("unveil", path_dir);
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = apply_unveil(got_repo_get_path(repo), 0, NULL((void *)0));
if (error) {
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = got_repo_import(&new_commit_id, path_dir, logmsg,
   author, &ignores, repo, import_progress, NULL((void *)0));
if (error) {
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = got_ref_alloc(&branch_ref, refname, new_commit_id);
if (error) {
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = got_ref_write(branch_ref, repo);
if (error) {
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = got_object_id_str(&id_str, new_commit_id);
if (error) {
if (logmsg_path)
	preserve_logmsg = 1;
goto done;
}

error = got_ref_open(&head_ref, repo, GOT_REF_HEAD"HEAD", 0);
if (error) {
if (error->code != GOT_ERR_NOT_REF5) {
	if (logmsg_path)
		preserve_logmsg = 1;
	goto done;
}

error = got_ref_alloc_symref(&head_ref, GOT_REF_HEAD"HEAD",
    branch_ref);
if (error) {
	if (logmsg_path)
		preserve_logmsg = 1;
	goto done;
}

error = got_ref_write(head_ref, repo);
if (error) {
	if (logmsg_path)
		preserve_logmsg = 1;
	goto done;
}
}

printf("Created branch %s with commit %s\n",
   got_ref_get_name(branch_ref), id_str);
890done:
if (preserve_logmsg39.1
'preserve_logmsg' is 0
) {
40
←
Taking false branch→
fprintf(stderr(&__sF[2]), "%s: log message preserved in %s\n",
    getprogname(), logmsg_path);
} else if (logmsg_path40.1
'logmsg_path' is null
 && unlink(logmsg_path) == -1 && error == NULL((void *)0))
error = got_error_from_errno2("unlink", logmsg_path);
free(logmsg);
41
←
Attempt to free released memory
free(logmsg_path);
free(repo_path);
free(editor);
free(refname);
free(new_commit_id);
free(id_str);
free(author);
free(gitconfig_path);
if (branch_ref)
got_ref_close(branch_ref);
if (head_ref)
got_ref_close(head_ref);
return error;
910}

912__dead__attribute__((__noreturn__)) static void
913usage_clone(void)
914{
fprintf(stderr(&__sF[2]), "usage: %s clone [-a] [-b branch] [-l] [-m] [-q] [-v] "
   "[-R reference] repository-url [directory]\n", getprogname());
exit(1);
918}

920struct got_fetch_progress_arg {
char last_scaled_size[FMT_SCALED_STRSIZE7];
int last_p_indexed;
int last_p_resolved;
int verbosity;

struct got_repository *repo;

int create_configs;
int configs_created;
struct {
struct got_pathlist_head *symrefs;
struct got_pathlist_head *wanted_branches;
struct got_pathlist_head *wanted_refs;
const char *proto;
const char *host;
const char *port;
const char *remote_repo_path;
const char *git_url;
int fetch_all_branches;
int mirror_references;
} config_info;
942};

944/* XXX forward declaration */
945static const struct got_error *
946create_config_files(const char *proto, const char *host, const char *port,
  const char *remote_repo_path, const char *git_url, int fetch_all_branches,
  int mirror_references, struct got_pathlist_head *symrefs,
  struct got_pathlist_head *wanted_branches,
  struct got_pathlist_head *wanted_refs, struct got_repository *repo);

952static const struct got_error *
953fetch_progress(void *arg, const char *message, off_t packfile_size,
  int nobj_total, int nobj_indexed, int nobj_loose, int nobj_resolved)
955{
const struct got_error *err = NULL((void *)0);
struct got_fetch_progress_arg *a = arg;
char scaled_size[FMT_SCALED_STRSIZE7];
int p_indexed, p_resolved;
int print_size = 0, print_indexed = 0, print_resolved = 0;

/*
* In order to allow a failed clone to be resumed with 'got fetch'
* we try to create configuration files as soon as possible.
* Once the server has sent information about its default branch
* we have all required information.
*/
if (a->create_configs && !a->configs_created &&
   !TAILQ_EMPTY(a->config_info.symrefs)(((a->config_info.symrefs)->tqh_first) == ((void *)0))) {
err = create_config_files(a->config_info.proto,
    a->config_info.host, a->config_info.port,
    a->config_info.remote_repo_path,
    a->config_info.git_url,
    a->config_info.fetch_all_branches,
    a->config_info.mirror_references,
    a->config_info.symrefs,
    a->config_info.wanted_branches,
    a->config_info.wanted_refs, a->repo);
if (err)
	return err;
a->configs_created = 1;
}

if (a->verbosity < 0)
return NULL((void *)0);

if (message && message[0] != '\0') {
printf("\rserver: %s", message);
fflush(stdout(&__sF[1]));
return NULL((void *)0);
}

if (packfile_size > 0 || nobj_indexed > 0) {
if (fmt_scaled(packfile_size, scaled_size) == 0 &&
    (a->last_scaled_size[0] == '\0' ||
    strcmp(scaled_size, a->last_scaled_size)) != 0) {
	print_size = 1;
	if (strlcpy(a->last_scaled_size, scaled_size,
	    FMT_SCALED_STRSIZE7) >= FMT_SCALED_STRSIZE7)
		return got_error(GOT_ERR_NO_SPACE9);
}
if (nobj_indexed > 0) {
	p_indexed = (nobj_indexed * 100) / nobj_total;
	if (p_indexed != a->last_p_indexed) {
		a->last_p_indexed = p_indexed;
		print_indexed = 1;
		print_size = 1;
	}
}
if (nobj_resolved > 0) {
	p_resolved = (nobj_resolved * 100) /
	    (nobj_total - nobj_loose);
	if (p_resolved != a->last_p_resolved) {
		a->last_p_resolved = p_resolved;
		print_resolved = 1;
		print_indexed = 1;
		print_size = 1;
	}
}

}
if (print_size || print_indexed || print_resolved)
printf("\r");
if (print_size)
printf("%*s fetched", FMT_SCALED_STRSIZE7, scaled_size);
if (print_indexed)
printf("; indexing %d%%", p_indexed);
if (print_resolved)
printf("; resolving deltas %d%%", p_resolved);
if (print_size || print_indexed || print_resolved)
fflush(stdout(&__sF[1]));

return NULL((void *)0);
1034}

1036static const struct got_error *
1037create_symref(const char *refname, struct got_reference *target_ref,
  int verbosity, struct got_repository *repo)
1039{
const struct got_error *err;
struct got_reference *head_symref;

err = got_ref_alloc_symref(&head_symref, refname, target_ref);
if (err)
return err;

err = got_ref_write(head_symref, repo);
if (err == NULL((void *)0) && verbosity > 0) {
printf("Created reference %s: %s\n", GOT_REF_HEAD"HEAD",
    got_ref_get_name(target_ref));
}
got_ref_close(head_symref);
return err;
1054}

1056static const struct got_error *
1057list_remote_refs(struct got_pathlist_head *symrefs,
  struct got_pathlist_head *refs)
1059{
const struct got_error *err;
struct got_pathlist_entry *pe;

TAILQ_FOREACH(pe, symrefs, entry)for((pe) = ((symrefs)->tqh_first); (pe) != ((void *)0); (pe
) = ((pe)->entry.tqe_next)) {
const char *refname = pe->path;
const char *targetref = pe->data;

printf("%s: %s\n", refname, targetref);
}

TAILQ_FOREACH(pe, refs, entry)for((pe) = ((refs)->tqh_first); (pe) != ((void *)0); (pe) =
 ((pe)->entry.tqe_next)) {
const char *refname = pe->path;
struct got_object_id *id = pe->data;
char *id_str;

err = got_object_id_str(&id_str, id);
if (err)
	return err;
printf("%s: %s\n", refname, id_str);
free(id_str);
}

return NULL((void *)0);
1083}

1085static const struct got_error *
1086create_ref(const char *refname, struct got_object_id *id,
  int verbosity, struct got_repository *repo)
1088{
const struct got_error *err = NULL((void *)0);
struct got_reference *ref;
char *id_str;

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

err = got_ref_alloc(&ref, refname, id);
if (err)
goto done;

err = got_ref_write(ref, repo);
got_ref_close(ref);

if (err == NULL((void *)0) && verbosity >= 0)
printf("Created reference %s: %s\n", refname, id_str);
1106done:
free(id_str);
return err;
1109}

1111static int
1112match_wanted_ref(const char *refname, const char *wanted_ref)
1113{
if (strncmp(refname, "refs/", 5) != 0)
return 0;
refname += 5;

/*
* Prevent fetching of references that won't make any
* sense outside of the remote repository's context.
*/
if (strncmp(refname, "got/", 4) == 0)
return 0;
if (strncmp(refname, "remotes/", 8) == 0)
return 0;

if (strncmp(wanted_ref, "refs/", 5) == 0)
wanted_ref += 5;

/* Allow prefix match. */
if (got_path_is_child(refname, wanted_ref, strlen(wanted_ref)))
return 1;

/* Allow exact match. */
return (strcmp(refname, wanted_ref) == 0);
1136}

1138static int
1139is_wanted_ref(struct got_pathlist_head *wanted_refs, const char *refname)
1140{
struct got_pathlist_entry *pe;

TAILQ_FOREACH(pe, wanted_refs, entry)for((pe) = ((wanted_refs)->tqh_first); (pe) != ((void *)0)
; (pe) = ((pe)->entry.tqe_next)) {
if (match_wanted_ref(refname, pe->path))
	return 1;
}

return 0;
1149}

1151static const struct got_error *
1152create_wanted_ref(const char *refname, struct got_object_id *id,
  const char *remote_repo_name, int verbosity, struct got_repository *repo)
1154{
const struct got_error *err;
char *remote_refname;

if (strncmp("refs/", refname, 5) == 0)
refname += 5;

if (asprintf(&remote_refname, "refs/remotes/%s/%s",
   remote_repo_name, refname) == -1)
return got_error_from_errno("asprintf");

err = create_ref(remote_refname, id, verbosity, repo);
free(remote_refname);
return err;
1168}

1170static const struct got_error *
1171create_gotconfig(const char *proto, const char *host, const char *port,
  const char *remote_repo_path, const char *default_branch,
  int fetch_all_branches, struct got_pathlist_head *wanted_branches,
  struct got_pathlist_head *wanted_refs, int mirror_references,
  struct got_repository *repo)
1176{
const struct got_error *err = NULL((void *)0);
char *gotconfig_path = NULL((void *)0);
char *gotconfig = NULL((void *)0);
FILE *gotconfig_file = NULL((void *)0);
const char *branchname = NULL((void *)0);
char *branches = NULL((void *)0), *refs = NULL((void *)0);
ssize_t n;

if (!fetch_all_branches && !TAILQ_EMPTY(wanted_branches)(((wanted_branches)->tqh_first) == ((void *)0))) {
struct got_pathlist_entry *pe;
TAILQ_FOREACH(pe, wanted_branches, entry)for((pe) = ((wanted_branches)->tqh_first); (pe) != ((void *
)0); (pe) = ((pe)->entry.tqe_next)) {
	char *s;
	branchname = pe->path;
	if (strncmp(branchname, "refs/heads/", 11) == 0)
		branchname += 11;
	if (asprintf(&s, "%s\"%s\" ",
	    branches ? branches : "", branchname) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	free(branches);
	branches = s;
}
} else if (!fetch_all_branches && default_branch) {
branchname = default_branch;
if (strncmp(branchname, "refs/heads/", 11) == 0)
	branchname += 11;
if (asprintf(&branches, "\"%s\" ", branchname) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
}
if (!TAILQ_EMPTY(wanted_refs)(((wanted_refs)->tqh_first) == ((void *)0))) {
struct got_pathlist_entry *pe;
TAILQ_FOREACH(pe, wanted_refs, entry)for((pe) = ((wanted_refs)->tqh_first); (pe) != ((void *)0)
; (pe) = ((pe)->entry.tqe_next)) {
	char *s;
	const char *refname = pe->path;
	if (strncmp(refname, "refs/", 5) == 0)
		branchname += 5;
	if (asprintf(&s, "%s\"%s\" ",
	    refs ? refs : "", refname) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	free(refs);
	refs = s;
}
}

/* Create got.conf(5). */
gotconfig_path = got_repo_get_path_gotconfig(repo);
if (gotconfig_path == NULL((void *)0)) {
err = got_error_from_errno("got_repo_get_path_gotconfig");
goto done;
}
gotconfig_file = fopen(gotconfig_path, "a");
if (gotconfig_file == NULL((void *)0)) {
err = got_error_from_errno2("fopen", gotconfig_path);
goto done;
}
if (asprintf(&gotconfig,
   "remote \"%s\" {\n"
   "\tserver %s\n"
   "\tprotocol %s\n"
   "%s%s%s"
   "\trepository \"%s\"\n"
   "%s%s%s"
   "%s%s%s"
   "%s"
   "%s"
   "}\n",
   GOT_FETCH_DEFAULT_REMOTE_NAME"origin", host, proto,
   port ? "\tport " : "", port ? port : "", port ? "\n" : "",
   remote_repo_path, branches ? "\tbranch { " : "",
   branches ? branches : "", branches ? "}\n" : "", 
   refs ? "\treference { " : "", refs ? refs : "", refs ? "}\n" : "", 
   mirror_references ? "\tmirror-references yes\n" : "",
   fetch_all_branches ? "\tfetch-all-branches yes\n" : "") == -1) {
err = got_error_from_errno("asprintf");
goto done;
}
n = fwrite(gotconfig, 1, strlen(gotconfig), gotconfig_file);
if (n != strlen(gotconfig)) {
err = got_ferror(gotconfig_file, GOT_ERR_IO6);
goto done;
}

1264done:
if (gotconfig_file && fclose(gotconfig_file) == EOF(-1) && err == NULL((void *)0))
err = got_error_from_errno2("fclose", gotconfig_path);
free(gotconfig_path);
free(branches);
return err;
1270}

1272static const struct got_error *
1273create_gitconfig(const char *git_url, const char *default_branch,
  int fetch_all_branches, struct got_pathlist_head *wanted_branches,
  struct got_pathlist_head *wanted_refs, int mirror_references,
  struct got_repository *repo)
1277{
const struct got_error *err = NULL((void *)0);
char *gitconfig_path = NULL((void *)0);
char *gitconfig = NULL((void *)0);
FILE *gitconfig_file = NULL((void *)0);
char *branches = NULL((void *)0), *refs = NULL((void *)0);
const char *branchname;
ssize_t n;

/* Create a config file Git can understand. */
gitconfig_path = got_repo_get_path_gitconfig(repo);
if (gitconfig_path == NULL((void *)0)) {
err = got_error_from_errno("got_repo_get_path_gitconfig");
goto done;
}
gitconfig_file = fopen(gitconfig_path, "a");
if (gitconfig_file == NULL((void *)0)) {
err = got_error_from_errno2("fopen", gitconfig_path);
goto done;
}
if (fetch_all_branches) {
if (mirror_references) {
	if (asprintf(&branches,
	    "\tfetch = refs/heads/*:refs/heads/*\n") == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
} else if (asprintf(&branches,
    "\tfetch = refs/heads/*:refs/remotes/%s/*\n",
    GOT_FETCH_DEFAULT_REMOTE_NAME"origin") == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
} else if (!TAILQ_EMPTY(wanted_branches)(((wanted_branches)->tqh_first) == ((void *)0))) {
struct got_pathlist_entry *pe;
TAILQ_FOREACH(pe, wanted_branches, entry)for((pe) = ((wanted_branches)->tqh_first); (pe) != ((void *
)0); (pe) = ((pe)->entry.tqe_next)) {
	char *s;
	branchname = pe->path;
	if (strncmp(branchname, "refs/heads/", 11) == 0)
		branchname += 11;
	if (mirror_references) {
		if (asprintf(&s,
		    "%s\tfetch = refs/heads/%s:refs/heads/%s\n",
		    branches ? branches : "",
		    branchname, branchname) == -1) {
			err = got_error_from_errno("asprintf");
			goto done;
		}
	} else if (asprintf(&s,
	    "%s\tfetch = refs/heads/%s:refs/remotes/%s/%s\n",
	    branches ? branches : "",
	    branchname, GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
	    branchname) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	free(branches);
	branches = s;
}
} else {
/*
 * If the server specified a default branch, use just that one.
 * Otherwise fall back to fetching all branches on next fetch.
 */
if (default_branch) {
	branchname = default_branch;
	if (strncmp(branchname, "refs/heads/", 11) == 0)
		branchname += 11;
} else
	branchname = "*"; /* fall back to all branches */
if (mirror_references) {
	if (asprintf(&branches,
	    "\tfetch = refs/heads/%s:refs/heads/%s\n",
	    branchname, branchname) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
} else if (asprintf(&branches,
    "\tfetch = refs/heads/%s:refs/remotes/%s/%s\n",
    branchname, GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
    branchname) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}
}
if (!TAILQ_EMPTY(wanted_refs)(((wanted_refs)->tqh_first) == ((void *)0))) {
struct got_pathlist_entry *pe;
TAILQ_FOREACH(pe, wanted_refs, entry)for((pe) = ((wanted_refs)->tqh_first); (pe) != ((void *)0)
; (pe) = ((pe)->entry.tqe_next)) {
	char *s;
	const char *refname = pe->path;
	if (strncmp(refname, "refs/", 5) == 0)
		refname += 5;
	if (mirror_references) {
		if (asprintf(&s,
		    "%s\tfetch = refs/%s:refs/%s\n",
		    refs ? refs : "", refname, refname) == -1) {
			err = got_error_from_errno("asprintf");
			goto done;
		}
	} else if (asprintf(&s,
	    "%s\tfetch = refs/%s:refs/remotes/%s/%s\n",
	    refs ? refs : "",
	    refname, GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
	    refname) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	free(refs);
	refs = s;
}
}

if (asprintf(&gitconfig,
   "[remote \"%s\"]\n"
   "\turl = %s\n"
   "%s"
   "%s"
   "\tfetch = refs/tags/*:refs/tags/*\n",
   GOT_FETCH_DEFAULT_REMOTE_NAME"origin", git_url, branches ? branches : "",
   refs ? refs : "") == -1) {
err = got_error_from_errno("asprintf");
goto done;
}
n = fwrite(gitconfig, 1, strlen(gitconfig), gitconfig_file);
if (n != strlen(gitconfig)) {
err = got_ferror(gitconfig_file, GOT_ERR_IO6);
goto done;
}
1405done:
if (gitconfig_file && fclose(gitconfig_file) == EOF(-1) && err == NULL((void *)0))
err = got_error_from_errno2("fclose", gitconfig_path);
free(gitconfig_path);
free(branches);
return err;
1411}

1413static const struct got_error *
1414create_config_files(const char *proto, const char *host, const char *port,
  const char *remote_repo_path, const char *git_url, int fetch_all_branches,
  int mirror_references, struct got_pathlist_head *symrefs,
  struct got_pathlist_head *wanted_branches,
  struct got_pathlist_head *wanted_refs, struct got_repository *repo)
1419{
const struct got_error *err = NULL((void *)0);
const char *default_branch = NULL((void *)0);
struct got_pathlist_entry *pe;

/*
* If we asked for a set of wanted branches then use the first
* one of those.
*/
if (!TAILQ_EMPTY(wanted_branches)(((wanted_branches)->tqh_first) == ((void *)0))) {
pe = TAILQ_FIRST(wanted_branches)((wanted_branches)->tqh_first);
default_branch = pe->path;
} else {
/* First HEAD ref listed by server is the default branch. */
TAILQ_FOREACH(pe, symrefs, entry)for((pe) = ((symrefs)->tqh_first); (pe) != ((void *)0); (pe
) = ((pe)->entry.tqe_next)) {
	const char *refname = pe->path;
	const char *target = pe->data;

	if (strcmp(refname, GOT_REF_HEAD"HEAD") != 0)
		continue;

	default_branch = target;
	break;
}
}

/* Create got.conf(5). */
err = create_gotconfig(proto, host, port, remote_repo_path,
   default_branch, fetch_all_branches, wanted_branches,
   wanted_refs, mirror_references, repo);
if (err)
return err;

/* Create a config file Git can understand. */
return create_gitconfig(git_url, default_branch, fetch_all_branches,
   wanted_branches, wanted_refs, mirror_references, repo);
1455}

1457static const struct got_error *
1458cmd_clone(int argc, char *argv[])
1459{
const struct got_error *error = NULL((void *)0);
const char *uri, *dirname;
char *proto, *host, *port, *repo_name, *server_path;
char *default_destdir = NULL((void *)0), *id_str = NULL((void *)0);
const char *repo_path;
struct got_repository *repo = NULL((void *)0);
struct got_pathlist_head refs, symrefs, wanted_branches, wanted_refs;
struct got_pathlist_entry *pe;
struct got_object_id *pack_hash = NULL((void *)0);
int ch, fetchfd = -1, fetchstatus;
pid_t fetchpid = -1;
struct got_fetch_progress_arg fpa;
char *git_url = NULL((void *)0);
int verbosity = 0, fetch_all_branches = 0, mirror_references = 0;
int list_refs_only = 0;

TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
TAILQ_INIT(&symrefs)do { (&symrefs)->tqh_first = ((void *)0); (&symrefs
)->tqh_last = &(&symrefs)->tqh_first; } while (
0);
TAILQ_INIT(&wanted_branches)do { (&wanted_branches)->tqh_first = ((void *)0); (&
wanted_branches)->tqh_last = &(&wanted_branches)->
tqh_first; } while (0);
TAILQ_INIT(&wanted_refs)do { (&wanted_refs)->tqh_first = ((void *)0); (&wanted_refs
)->tqh_last = &(&wanted_refs)->tqh_first; } while
 (0);

while ((ch = getopt(argc, argv, "ab:lmvqR:")) != -1) {
switch (ch) {
case 'a':
	fetch_all_branches = 1;
	break;
case 'b':
	error = got_pathlist_append(&wanted_branches,
	    optarg, NULL((void *)0));
	if (error)
		return error;
	break;
case 'l':
	list_refs_only = 1;
	break;
case 'm':
	mirror_references = 1;
	break;
case 'v':
	if (verbosity < 0)
		verbosity = 0;
	else if (verbosity < 3)
		verbosity++;
	break;
case 'q':
	verbosity = -1;
	break;
case 'R':
	error = got_pathlist_append(&wanted_refs,
	    optarg, NULL((void *)0));
	if (error)
		return error;
	break;
default:
	usage_clone();
	break;
}
}
argc -= optind;
argv += optind;

if (fetch_all_branches && !TAILQ_EMPTY(&wanted_branches)(((&wanted_branches)->tqh_first) == ((void *)0)))
option_conflict('a', 'b');
if (list_refs_only) {
if (!TAILQ_EMPTY(&wanted_branches)(((&wanted_branches)->tqh_first) == ((void *)0)))
	option_conflict('l', 'b');
if (fetch_all_branches)
	option_conflict('l', 'a');
if (mirror_references)
	option_conflict('l', 'm');
if (!TAILQ_EMPTY(&wanted_refs)(((&wanted_refs)->tqh_first) == ((void *)0)))
	option_conflict('l', 'R');
}

uri = argv[0];

if (argc == 1)
dirname = NULL((void *)0);
else if (argc == 2)
dirname = argv[1];
else
usage_clone();

error = got_fetch_parse_uri(&proto, &host, &port, &server_path,
   &repo_name, uri);
if (error)
goto done;

if (asprintf(&git_url, "%s://%s%s%s%s%s", proto,
   host, port ? ":" : "", port ? port : "",
   server_path[0] != '/' ? "/" : "", server_path) == -1) {
error = got_error_from_errno("asprintf");
goto done;
}

if (strcmp(proto, "git") == 0) {
1556#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd dns inet unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
1560#endif
} else if (strcmp(proto, "git+ssh") == 0 ||
   strcmp(proto, "ssh") == 0) {
1563#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
1567#endif
} else if (strcmp(proto, "http") == 0 ||
   strcmp(proto, "git+http") == 0) {
error = got_error_path(proto, GOT_ERR_NOT_IMPL18);
goto done;
} else {
error = got_error_path(proto, GOT_ERR_BAD_PROTO120);
goto done;
}
if (dirname == NULL((void *)0)) {
if (asprintf(&default_destdir, "%s.git", repo_name) == -1) {
	error = got_error_from_errno("asprintf");
	goto done;
}
repo_path = default_destdir;
} else
repo_path = dirname;

if (!list_refs_only) {
error = got_path_mkdir(repo_path);
if (error &&
    (!(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EISDIR21) &&
    !(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EEXIST17)))
	goto done;
if (!got_path_dir_is_empty(repo_path)) {
	error = got_error_path(repo_path,
	    GOT_ERR_DIR_NOT_EMPTY75);
	goto done;
}
}

if (strcmp(proto, "git+ssh") == 0 || strcmp(proto, "ssh") == 0) {
if (unveil(GOT_FETCH_PATH_SSH"/usr/bin/ssh", "x") != 0) {
	error = got_error_from_errno2("unveil",
	    GOT_FETCH_PATH_SSH"/usr/bin/ssh");
	goto done;
}
}
error = apply_unveil(repo_path, 0, NULL((void *)0));
if (error)
goto done;

if (verbosity >= 0)
printf("Connecting to %s%s%s\n", host,
    port ? ":" : "", port ? port : "");

error = got_fetch_connect(&fetchpid, &fetchfd, proto, host, port,
   server_path, verbosity);
if (error)
goto done;

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

fpa.last_scaled_size[0] = '\0';
fpa.last_p_indexed = -1;
fpa.last_p_resolved = -1;
fpa.verbosity = verbosity;
fpa.create_configs = 1;
fpa.configs_created = 0;
fpa.repo = repo;
fpa.config_info.symrefs = &symrefs;
fpa.config_info.wanted_branches = &wanted_branches;
fpa.config_info.wanted_refs = &wanted_refs;
fpa.config_info.proto = proto;
fpa.config_info.host = host;
fpa.config_info.port = port;
fpa.config_info.remote_repo_path = server_path;
fpa.config_info.git_url = git_url;
fpa.config_info.fetch_all_branches = fetch_all_branches;
fpa.config_info.mirror_references = mirror_references;
error = got_fetch_pack(&pack_hash, &refs, &symrefs,
   GOT_FETCH_DEFAULT_REMOTE_NAME"origin", mirror_references,
   fetch_all_branches, &wanted_branches, &wanted_refs,
   list_refs_only, verbosity, fetchfd, repo,
   fetch_progress, &fpa);
if (error)
goto done;

if (list_refs_only) {
error = list_remote_refs(&symrefs, &refs);
goto done;
}

error = got_object_id_str(&id_str, pack_hash);
if (error)
goto done;
if (verbosity >= 0)
printf("\nFetched %s.pack\n", id_str);
free(id_str);

/* Set up references provided with the pack file. */
TAILQ_FOREACH(pe, &refs, entry)for((pe) = ((&refs)->tqh_first); (pe) != ((void *)0); (
pe) = ((pe)->entry.tqe_next)) {
const char *refname = pe->path;
struct got_object_id *id = pe->data;
char *remote_refname;

if (is_wanted_ref(&wanted_refs, refname) &&
    !mirror_references) {
	error = create_wanted_ref(refname, id,
	    GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
	    verbosity - 1, repo);
	if (error)
		goto done;
	continue;
}

error = create_ref(refname, id, verbosity - 1, repo);
if (error)
	goto done;

if (mirror_references)
	continue;

if (strncmp("refs/heads/", refname, 11) != 0)
	continue;

if (asprintf(&remote_refname,
    "refs/remotes/%s/%s", GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
    refname + 11) == -1) {
	error = got_error_from_errno("asprintf");
	goto done;
}
error = create_ref(remote_refname, id, verbosity - 1, repo);
free(remote_refname);
if (error)
	goto done;
}

/* Set the HEAD reference if the server provided one. */
TAILQ_FOREACH(pe, &symrefs, entry)for((pe) = ((&symrefs)->tqh_first); (pe) != ((void *)0
); (pe) = ((pe)->entry.tqe_next)) {
struct got_reference *target_ref;
const char *refname = pe->path;
const char *target = pe->data;
char *remote_refname = NULL((void *)0), *remote_target = NULL((void *)0);

if (strcmp(refname, GOT_REF_HEAD"HEAD") != 0)
	continue;

error = got_ref_open(&target_ref, repo, target, 0);
if (error) {
	if (error->code == GOT_ERR_NOT_REF5) {
		error = NULL((void *)0);
		continue;
	}
	goto done;
}

error = create_symref(refname, target_ref, verbosity, repo);
got_ref_close(target_ref);
if (error)
	goto done;

if (mirror_references)
	continue;

if (strncmp("refs/heads/", target, 11) != 0)
	continue;

if (asprintf(&remote_refname,
    "refs/remotes/%s/%s", GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
    refname) == -1) {
	error = got_error_from_errno("asprintf");
	goto done;
}
if (asprintf(&remote_target,
    "refs/remotes/%s/%s", GOT_FETCH_DEFAULT_REMOTE_NAME"origin",
    target + 11) == -1) {
	error = got_error_from_errno("asprintf");
	free(remote_refname);
	goto done;
}
error = got_ref_open(&target_ref, repo, remote_target, 0);
if (error) {
	free(remote_refname);
	free(remote_target);
	if (error->code == GOT_ERR_NOT_REF5) {
		error = NULL((void *)0);
		continue;
	}
	goto done;
}
error = create_symref(remote_refname, target_ref,
    verbosity - 1, repo);
free(remote_refname);
free(remote_target);
got_ref_close(target_ref);
if (error)
	goto done;
}
if (pe == NULL((void *)0)) {
/*
 * We failed to set the HEAD reference. If we asked for
 * a set of wanted branches use the first of one of those
 * which could be fetched instead.
 */
TAILQ_FOREACH(pe, &wanted_branches, entry)for((pe) = ((&wanted_branches)->tqh_first); (pe) != ((
void *)0); (pe) = ((pe)->entry.tqe_next)) {
	const char *target = pe->path;
	struct got_reference *target_ref;

	error = got_ref_open(&target_ref, repo, target, 0);
	if (error) {
		if (error->code == GOT_ERR_NOT_REF5) {
			error = NULL((void *)0);
			continue;
		}
		goto done;
	}

	error = create_symref(GOT_REF_HEAD"HEAD", target_ref,
	    verbosity, repo);
	got_ref_close(target_ref);
	if (error)
		goto done;
	break;
}
}

if (verbosity >= 0)
printf("Created %s repository '%s'\n",
    mirror_references ? "mirrored" : "cloned", repo_path);
1794done:
if (fetchpid > 0) {
if (kill(fetchpid, SIGTERM15) == -1)
	error = got_error_from_errno("kill");
if (waitpid(fetchpid, &fetchstatus, 0) == -1 && error == NULL((void *)0))
	error = got_error_from_errno("waitpid");
}
if (fetchfd != -1 && close(fetchfd) == -1 && error == NULL((void *)0))
error = got_error_from_errno("close");
if (repo)
got_repo_close(repo);
TAILQ_FOREACH(pe, &refs, entry)for((pe) = ((&refs)->tqh_first); (pe) != ((void *)0); (
pe) = ((pe)->entry.tqe_next)) {
free((void *)pe->path);
free(pe->data);
}
got_pathlist_free(&refs);
TAILQ_FOREACH(pe, &symrefs, entry)for((pe) = ((&symrefs)->tqh_first); (pe) != ((void *)0
); (pe) = ((pe)->entry.tqe_next)) {
free((void *)pe->path);
free(pe->data);
}
got_pathlist_free(&symrefs);
got_pathlist_free(&wanted_branches);
got_pathlist_free(&wanted_refs);
free(pack_hash);
free(proto);
free(host);
free(port);
free(server_path);
free(repo_name);
free(default_destdir);
free(git_url);
return error;
1826}

1828static const struct got_error *
1829update_ref(struct got_reference *ref, struct got_object_id *new_id,
  int replace_tags, int verbosity, struct got_repository *repo)
1831{
const struct got_error *err = NULL((void *)0);
char *new_id_str = NULL((void *)0);
struct got_object_id *old_id = NULL((void *)0);

err = got_object_id_str(&new_id_str, new_id);
if (err)
goto done;

if (!replace_tags &&
   strncmp(got_ref_get_name(ref), "refs/tags/", 10) == 0) {
err = got_ref_resolve(&old_id, repo, ref);
if (err)
	goto done;
if (got_object_id_cmp(old_id, new_id) == 0)
	goto done;
if (verbosity >= 0) {
	printf("Rejecting update of existing tag %s: %s\n",
	    got_ref_get_name(ref), new_id_str);
}
goto done;
}

if (got_ref_is_symbolic(ref)) {
if (verbosity >= 0) {
	printf("Replacing reference %s: %s\n",
	    got_ref_get_name(ref),
	    got_ref_get_symref_target(ref));
}
err = got_ref_change_symref_to_ref(ref, new_id);
if (err)
	goto done;
err = got_ref_write(ref, repo);
if (err)
	goto done;
} else {
err = got_ref_resolve(&old_id, repo, ref);
if (err)
	goto done;
if (got_object_id_cmp(old_id, new_id) == 0)
	goto done;

err = got_ref_change_ref(ref, new_id);
if (err)
	goto done;
err = got_ref_write(ref, repo);
if (err)
	goto done;
}

if (verbosity >= 0)
printf("Updated %s: %s\n", got_ref_get_name(ref),
    new_id_str);
1884done:
free(old_id);
free(new_id_str);
return err;
1888}

1890static const struct got_error *
1891update_symref(const char *refname, struct got_reference *target_ref,
  int verbosity, struct got_repository *repo)
1893{
const struct got_error *err = NULL((void *)0), *unlock_err;
struct got_reference *symref;
int symref_is_locked = 0;

err = got_ref_open(&symref, repo, refname, 1);
if (err) {
if (err->code != GOT_ERR_NOT_REF5)
	return err;
err = got_ref_alloc_symref(&symref, refname, target_ref);
if (err)
	goto done;

err = got_ref_write(symref, repo);
if (err)
	goto done;

if (verbosity >= 0)
	printf("Created reference %s: %s\n",
	    got_ref_get_name(symref),
	    got_ref_get_symref_target(symref));
} else {
symref_is_locked = 1;

if (strcmp(got_ref_get_symref_target(symref),
    got_ref_get_name(target_ref)) == 0)
	goto done;

err = got_ref_change_symref(symref,
    got_ref_get_name(target_ref));
if (err)
	goto done;

err = got_ref_write(symref, repo);
if (err)
	goto done;

if (verbosity >= 0)
	printf("Updated %s: %s\n", got_ref_get_name(symref),
	    got_ref_get_symref_target(symref));

}
1935done:
if (symref_is_locked) {
unlock_err = got_ref_unlock(symref);
if (unlock_err && err == NULL((void *)0))
	err = unlock_err;
}
got_ref_close(symref);
return err;
1943}

1945__dead__attribute__((__noreturn__)) static void
1946usage_fetch(void)
1947{
fprintf(stderr(&__sF[2]), "usage: %s fetch [-a] [-b branch] [-d] [-l] "
   "[-r repository-path] [-t] [-q] [-v] [-R reference] "
   "[remote-repository-name]\n",
   getprogname());
exit(1);
1953}

1955static const struct got_error *
1956delete_missing_ref(struct got_reference *ref,
  int verbosity, struct got_repository *repo)
1958{
const struct got_error *err = NULL((void *)0);
struct got_object_id *id = NULL((void *)0);
char *id_str = NULL((void *)0);

if (got_ref_is_symbolic(ref)) {
err = got_ref_delete(ref, repo);
if (err)
	return err;
if (verbosity >= 0) {
	printf("Deleted reference %s: %s\n",
	    got_ref_get_name(ref),
	    got_ref_get_symref_target(ref));
}
} else {
err = got_ref_resolve(&id, repo, ref);
if (err)
	return err;
err = got_object_id_str(&id_str, id);
if (err)
	goto done;

err = got_ref_delete(ref, repo);
if (err)
	goto done;
if (verbosity >= 0) {
	printf("Deleted reference %s: %s\n",
	    got_ref_get_name(ref), id_str);
}
}
1988done:
free(id);
free(id_str);
return NULL((void *)0);
1992}

1994static const struct got_error *
1995delete_missing_refs(struct got_pathlist_head *their_refs,
  struct got_pathlist_head *their_symrefs,
  const struct got_remote_repo *remote,
  int verbosity, struct got_repository *repo)
1999{
const struct got_error *err = NULL((void *)0), *unlock_err;
struct got_reflist_head my_refs;
struct got_reflist_entry *re;
struct got_pathlist_entry *pe;
char *remote_namespace = NULL((void *)0);
char *local_refname = NULL((void *)0);

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

if (asprintf(&remote_namespace, "refs/remotes/%s/", remote->name)
   == -1)
return got_error_from_errno("asprintf");

err = got_ref_list(&my_refs, repo, NULL((void *)0), got_ref_cmp_by_name, NULL((void *)0));
if (err)
goto done;

TAILQ_FOREACH(re, &my_refs, entry)for((re) = ((&my_refs)->tqh_first); (re) != ((void *)0
); (re) = ((re)->entry.tqe_next)) {
const char *refname = got_ref_get_name(re->ref);

if (!remote->mirror_references) {
	if (strncmp(refname, remote_namespace,
	    strlen(remote_namespace)) == 0) {
		if (strcmp(refname + strlen(remote_namespace),
		    GOT_REF_HEAD"HEAD") == 0)
			continue;
		if (asprintf(&local_refname, "refs/heads/%s",
		    refname + strlen(remote_namespace)) == -1) {
			err = got_error_from_errno("asprintf");
			goto done;
		}
	} else if (strncmp(refname, "refs/tags/", 10) != 0)
		continue;
}

TAILQ_FOREACH(pe, their_refs, entry)for((pe) = ((their_refs)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next)) {
	if (strcmp(local_refname, pe->path) == 0)
		break;
}
if (pe != NULL((void *)0))
	continue;

TAILQ_FOREACH(pe, their_symrefs, entry)for((pe) = ((their_symrefs)->tqh_first); (pe) != ((void *)
0); (pe) = ((pe)->entry.tqe_next)) {
	if (strcmp(local_refname, pe->path) == 0)
		break;
}
if (pe != NULL((void *)0))
	continue;

err = delete_missing_ref(re->ref, verbosity, repo);
if (err)
	break;

if (local_refname) {
	struct got_reference *ref;
	err = got_ref_open(&ref, repo, local_refname, 1);
	if (err) {
		if (err->code != GOT_ERR_NOT_REF5)
			break;
		free(local_refname);
		local_refname = NULL((void *)0);
		continue;
	}
	err = delete_missing_ref(ref, verbosity, repo);
	if (err)
		break;
	unlock_err = got_ref_unlock(ref);
	got_ref_close(ref);
	if (unlock_err && err == NULL((void *)0)) {
		err = unlock_err;
		break;
	}

	free(local_refname);
	local_refname = NULL((void *)0);
}
}
2077done:
free(remote_namespace);
free(local_refname);
return err;
2081}

2083static const struct got_error *
2084update_wanted_ref(const char *refname, struct got_object_id *id,
  const char *remote_repo_name, int verbosity, struct got_repository *repo)
2086{
const struct got_error *err, *unlock_err;
char *remote_refname;
struct got_reference *ref;

if (strncmp("refs/", refname, 5) == 0)
refname += 5;

if (asprintf(&remote_refname, "refs/remotes/%s/%s",
   remote_repo_name, refname) == -1)
return got_error_from_errno("asprintf");

err = got_ref_open(&ref, repo, remote_refname, 1);
if (err) {
if (err->code != GOT_ERR_NOT_REF5)
	goto done;
err = create_ref(remote_refname, id, verbosity, repo);
} else {
err = update_ref(ref, id, 0, verbosity, repo);
unlock_err = got_ref_unlock(ref);
if (unlock_err && err == NULL((void *)0))
	err = unlock_err;
got_ref_close(ref);
}
2110done:
free(remote_refname);
return err;
2113}

2115static const struct got_error *
2116cmd_fetch(int argc, char *argv[])
2117{
const struct got_error *error = NULL((void *)0), *unlock_err;
char *cwd = NULL((void *)0), *repo_path = NULL((void *)0);
const char *remote_name;
char *proto = NULL((void *)0), *host = NULL((void *)0), *port = NULL((void *)0);
char *repo_name = NULL((void *)0), *server_path = NULL((void *)0);
const struct got_remote_repo *remotes, *remote = NULL((void *)0);
int nremotes;
char *id_str = NULL((void *)0);
struct got_repository *repo = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
const struct got_gotconfig *repo_conf = NULL((void *)0), *worktree_conf = NULL((void *)0);
struct got_pathlist_head refs, symrefs, wanted_branches, wanted_refs;
struct got_pathlist_entry *pe;
struct got_object_id *pack_hash = NULL((void *)0);
int i, ch, fetchfd = -1, fetchstatus;
pid_t fetchpid = -1;
struct got_fetch_progress_arg fpa;
int verbosity = 0, fetch_all_branches = 0, list_refs_only = 0;
int delete_refs = 0, replace_tags = 0;

TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
TAILQ_INIT(&symrefs)do { (&symrefs)->tqh_first = ((void *)0); (&symrefs
)->tqh_last = &(&symrefs)->tqh_first; } while (
0);
TAILQ_INIT(&wanted_branches)do { (&wanted_branches)->tqh_first = ((void *)0); (&
wanted_branches)->tqh_last = &(&wanted_branches)->
tqh_first; } while (0);
TAILQ_INIT(&wanted_refs)do { (&wanted_refs)->tqh_first = ((void *)0); (&wanted_refs
)->tqh_last = &(&wanted_refs)->tqh_first; } while
 (0);

while ((ch = getopt(argc, argv, "ab:dlr:tvqR:")) != -1) {
switch (ch) {
case 'a':
	fetch_all_branches = 1;
	break;
case 'b':
	error = got_pathlist_append(&wanted_branches,
	    optarg, NULL((void *)0));
	if (error)
		return error;
	break;
case 'd':
	delete_refs = 1;
	break;
case 'l':
	list_refs_only = 1;
	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 't':
	replace_tags = 1;
	break;
case 'v':
	if (verbosity < 0)
		verbosity = 0;
	else if (verbosity < 3)
		verbosity++;
	break;
case 'q':
	verbosity = -1;
	break;
case 'R':
	error = got_pathlist_append(&wanted_refs,
	    optarg, NULL((void *)0));
	if (error)
		return error;
	break;
default:
	usage_fetch();
	break;
}
}
argc -= optind;
argv += optind;

if (fetch_all_branches && !TAILQ_EMPTY(&wanted_branches)(((&wanted_branches)->tqh_first) == ((void *)0)))
option_conflict('a', 'b');
if (list_refs_only) {
if (!TAILQ_EMPTY(&wanted_branches)(((&wanted_branches)->tqh_first) == ((void *)0)))
	option_conflict('l', 'b');
if (fetch_all_branches)
	option_conflict('l', 'a');
if (delete_refs)
	option_conflict('l', 'd');
}

if (argc == 0)
remote_name = GOT_FETCH_DEFAULT_REMOTE_NAME"origin";
else if (argc == 1)
remote_name = argv[0];
else
usage_fetch();

cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}

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

if (worktree) {
worktree_conf = got_worktree_get_gotconfig(worktree);
if (worktree_conf) {
	got_gotconfig_get_remotes(&nremotes, &remotes,
	    worktree_conf);
	for (i = 0; i < nremotes; i++) {
		if (strcmp(remotes[i].name, remote_name) == 0) {
			remote = &remotes[i];
			break;
		}
	}
}
}
if (remote == NULL((void *)0)) {
repo_conf = got_repo_get_gotconfig(repo);
if (repo_conf) {
	got_gotconfig_get_remotes(&nremotes, &remotes,
	    repo_conf);
	for (i = 0; i < nremotes; i++) {
		if (strcmp(remotes[i].name, remote_name) == 0) {
			remote = &remotes[i];
			break;
		}
	}
}
}
if (remote == NULL((void *)0)) {
got_repo_get_gitconfig_remotes(&nremotes, &remotes, repo);
for (i = 0; i < nremotes; i++) {
	if (strcmp(remotes[i].name, remote_name) == 0) {
		remote = &remotes[i];
		break;
	}
}
}
if (remote == NULL((void *)0)) {
error = got_error_path(remote_name, GOT_ERR_NO_REMOTE123);
goto done;
}

if (TAILQ_EMPTY(&wanted_branches)(((&wanted_branches)->tqh_first) == ((void *)0))) {
if (!fetch_all_branches)
	fetch_all_branches = remote->fetch_all_branches;
for (i = 0; i < remote->nbranches; i++) {
	got_pathlist_append(&wanted_branches,
	    remote->branches[i], NULL((void *)0));
}
}
if (TAILQ_EMPTY(&wanted_refs)(((&wanted_refs)->tqh_first) == ((void *)0))) {
for (i = 0; i < remote->nrefs; i++) {
	got_pathlist_append(&wanted_refs,
	    remote->refs[i], NULL((void *)0));
}
}

error = got_fetch_parse_uri(&proto, &host, &port, &server_path,
   &repo_name, remote->url);
if (error)
goto done;

if (strcmp(proto, "git") == 0) {
2304#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd dns inet unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
2308#endif
} else if (strcmp(proto, "git+ssh") == 0 ||
   strcmp(proto, "ssh") == 0) {
2311#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
2315#endif
} else if (strcmp(proto, "http") == 0 ||
   strcmp(proto, "git+http") == 0) {
error = got_error_path(proto, GOT_ERR_NOT_IMPL18);
goto done;
} else {
error = got_error_path(proto, GOT_ERR_BAD_PROTO120);
goto done;
}

if (strcmp(proto, "git+ssh") == 0 || strcmp(proto, "ssh") == 0) {
if (unveil(GOT_FETCH_PATH_SSH"/usr/bin/ssh", "x") != 0) {
	error = got_error_from_errno2("unveil",
	    GOT_FETCH_PATH_SSH"/usr/bin/ssh");
	goto done;
}
}
error = apply_unveil(got_repo_get_path(repo), 0, NULL((void *)0));
if (error)
goto done;

if (verbosity >= 0)
printf("Connecting to \"%s\" %s%s%s\n", remote->name, host,
    port ? ":" : "", port ? port : "");

error = got_fetch_connect(&fetchpid, &fetchfd, proto, host, port,
   server_path, verbosity);
if (error)
goto done;

fpa.last_scaled_size[0] = '\0';
fpa.last_p_indexed = -1;
fpa.last_p_resolved = -1;
fpa.verbosity = verbosity;
fpa.repo = repo;
fpa.create_configs = 0;
fpa.configs_created = 0;
memset(&fpa.config_info, 0, sizeof(fpa.config_info));
error = got_fetch_pack(&pack_hash, &refs, &symrefs, remote->name,
   remote->mirror_references, fetch_all_branches, &wanted_branches,
   &wanted_refs, list_refs_only, verbosity, fetchfd, repo,
   fetch_progress, &fpa);
if (error)
goto done;

if (list_refs_only) {
error = list_remote_refs(&symrefs, &refs);
goto done;
}

if (pack_hash == NULL((void *)0)) {
if (verbosity >= 0)
	printf("Already up-to-date\n");
} else if (verbosity >= 0) {
error = got_object_id_str(&id_str, pack_hash);
if (error)
	goto done;
printf("\nFetched %s.pack\n", id_str);
free(id_str);
id_str = NULL((void *)0);
}

/* Update references provided with the pack file. */
TAILQ_FOREACH(pe, &refs, entry)for((pe) = ((&refs)->tqh_first); (pe) != ((void *)0); (
pe) = ((pe)->entry.tqe_next)) {
const char *refname = pe->path;
struct got_object_id *id = pe->data;
struct got_reference *ref;
char *remote_refname;

if (is_wanted_ref(&wanted_refs, refname) &&
    !remote->mirror_references) {
	error = update_wanted_ref(refname, id,
	    remote->name, verbosity, repo);
	if (error)
		goto done;
	continue;
}

if (remote->mirror_references ||
    strncmp("refs/tags/", refname, 10) == 0) {
	error = got_ref_open(&ref, repo, refname, 1);
	if (error) {
		if (error->code != GOT_ERR_NOT_REF5)
			goto done;
		error = create_ref(refname, id, verbosity,
		    repo);
		if (error)
			goto done;
	} else {
		error = update_ref(ref, id, replace_tags,
		    verbosity, repo);
		unlock_err = got_ref_unlock(ref);
		if (unlock_err && error == NULL((void *)0))
			error = unlock_err;
		got_ref_close(ref);
		if (error)
			goto done;
	}
} else if (strncmp("refs/heads/", refname, 11) == 0) {
	if (asprintf(&remote_refname, "refs/remotes/%s/%s",
	    remote_name, refname + 11) == -1) {
		error = got_error_from_errno("asprintf");
		goto done;
	}

	error = got_ref_open(&ref, repo, remote_refname, 1);
	if (error) {
		if (error->code != GOT_ERR_NOT_REF5)
			goto done;
		error = create_ref(remote_refname, id, 
		    verbosity, repo);
		if (error)
			goto done;
	} else {
		error = update_ref(ref, id, replace_tags,
		    verbosity, repo);
		unlock_err = got_ref_unlock(ref);
		if (unlock_err && error == NULL((void *)0))
			error = unlock_err;
		got_ref_close(ref);
		if (error)
			goto done;
	}

	/* Also create a local branch if none exists yet. */
	error = got_ref_open(&ref, repo, refname, 1);
	if (error) {
		if (error->code != GOT_ERR_NOT_REF5)
			goto done;
		error = create_ref(refname, id, verbosity,
		    repo);
		if (error)
			goto done;
	} else {
		unlock_err = got_ref_unlock(ref);
		if (unlock_err && error == NULL((void *)0))
			error = unlock_err;
		got_ref_close(ref);
	}
}
}
if (delete_refs) {
error = delete_missing_refs(&refs, &symrefs, remote,
    verbosity, repo);
if (error)
	goto done;
}

if (!remote->mirror_references) {
/* Update remote HEAD reference if the server provided one. */
TAILQ_FOREACH(pe, &symrefs, entry)for((pe) = ((&symrefs)->tqh_first); (pe) != ((void *)0
); (pe) = ((pe)->entry.tqe_next)) {
	struct got_reference *target_ref;
	const char *refname = pe->path;
	const char *target = pe->data;
	char *remote_refname = NULL((void *)0), *remote_target = NULL((void *)0);

	if (strcmp(refname, GOT_REF_HEAD"HEAD") != 0)
		continue;

	if (strncmp("refs/heads/", target, 11) != 0)
		continue;

	if (asprintf(&remote_refname, "refs/remotes/%s/%s",
	    remote->name, refname) == -1) {
		error = got_error_from_errno("asprintf");
		goto done;
	}
	if (asprintf(&remote_target, "refs/remotes/%s/%s",
	    remote->name, target + 11) == -1) {
		error = got_error_from_errno("asprintf");
		free(remote_refname);
		goto done;
	}

	error = got_ref_open(&target_ref, repo, remote_target,
	    0);
	if (error) {
		free(remote_refname);
		free(remote_target);
		if (error->code == GOT_ERR_NOT_REF5) {
			error = NULL((void *)0);
			continue;
		}
		goto done;
	}
	error = update_symref(remote_refname, target_ref,
	    verbosity, repo);
	free(remote_refname);
	free(remote_target);
	got_ref_close(target_ref);
	if (error)
		goto done;
}
}
2509done:
if (fetchpid > 0) {
if (kill(fetchpid, SIGTERM15) == -1)
	error = got_error_from_errno("kill");
if (waitpid(fetchpid, &fetchstatus, 0) == -1 && error == NULL((void *)0))
	error = got_error_from_errno("waitpid");
}
if (fetchfd != -1 && close(fetchfd) == -1 && error == NULL((void *)0))
error = got_error_from_errno("close");
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
TAILQ_FOREACH(pe, &refs, entry)for((pe) = ((&refs)->tqh_first); (pe) != ((void *)0); (
pe) = ((pe)->entry.tqe_next)) {
free((void *)pe->path);
free(pe->data);
}
got_pathlist_free(&refs);
TAILQ_FOREACH(pe, &symrefs, entry)for((pe) = ((&symrefs)->tqh_first); (pe) != ((void *)0
); (pe) = ((pe)->entry.tqe_next)) {
free((void *)pe->path);
free(pe->data);
}
got_pathlist_free(&symrefs);
got_pathlist_free(&wanted_branches);
got_pathlist_free(&wanted_refs);
free(id_str);
free(cwd);
free(repo_path);
free(pack_hash);
free(proto);
free(host);
free(port);
free(server_path);
free(repo_name);
return error;
2544}


2547__dead__attribute__((__noreturn__)) static void
2548usage_checkout(void)
2549{
fprintf(stderr(&__sF[2]), "usage: %s checkout [-E] [-b branch] [-c commit] "
   "[-p prefix] repository-path [worktree-path]\n", getprogname());
exit(1);
2553}

2555static void
2556show_worktree_base_ref_warning(void)
2557{
fprintf(stderr(&__sF[2]), "%s: warning: could not create a reference "
   "to the work tree's base commit; the commit could be "
   "garbage-collected by Git; making the repository "
   "writable and running 'got update' will prevent this\n",
   getprogname());
2563}

2565struct got_checkout_progress_arg {
const char *worktree_path;
int had_base_commit_ref_error;
2568};

2570static const struct got_error *
2571checkout_progress(void *arg, unsigned char status, const char *path)
2572{
struct got_checkout_progress_arg *a = arg;

/* Base commit bump happens silently. */
if (status == GOT_STATUS_BUMP_BASE'b')
return NULL((void *)0);

if (status == GOT_STATUS_BASE_REF_ERR'B') {
a->had_base_commit_ref_error = 1;
return NULL((void *)0);
}

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

printf("%c  %s/%s\n", status, a->worktree_path, path);
return NULL((void *)0);
2589}

2591static const struct got_error *
2592check_cancelled(void *arg)
2593{
if (sigint_received || sigpipe_received)
return got_error(GOT_ERR_CANCELLED49);
return NULL((void *)0);
2597}

2599static const struct got_error *
2600check_linear_ancestry(struct got_object_id *commit_id,
  struct got_object_id *base_commit_id, int allow_forwards_in_time_only,
  struct got_repository *repo)
2603{
const struct got_error *err = NULL((void *)0);
struct got_object_id *yca_id;

err = got_commit_graph_find_youngest_common_ancestor(&yca_id,
   commit_id, base_commit_id, repo, check_cancelled, NULL((void *)0));
if (err)
return err;

if (yca_id == NULL((void *)0))
return got_error(GOT_ERR_ANCESTRY55);

/*
* Require a straight line of history between the target commit
* and the work tree's base commit.
*
* Non-linear situations such as this require a rebase:
*
* (commit) D       F (base_commit)
*           \     /
*            C   E
*             \ /
*              B (yca)
*              |
*              A
*
* 'got update' only handles linear cases:
* Update forwards in time:  A (base/yca) - B - C - D (commit)
* Update backwards in time: D (base) - C - B - A (commit/yca)
*/
if (allow_forwards_in_time_only) {
   if (got_object_id_cmp(base_commit_id, yca_id) != 0)
return got_error(GOT_ERR_ANCESTRY55);
} else if (got_object_id_cmp(commit_id, yca_id) != 0 &&
   got_object_id_cmp(base_commit_id, yca_id) != 0)
return got_error(GOT_ERR_ANCESTRY55);

free(yca_id);
return NULL((void *)0);
2642}

2644static const struct got_error *
2645check_same_branch(struct got_object_id *commit_id,
  struct got_reference *head_ref, struct got_object_id *yca_id,
  struct got_repository *repo)
2648{
const struct got_error *err = NULL((void *)0);
struct got_commit_graph *graph = NULL((void *)0);
struct got_object_id *head_commit_id = NULL((void *)0);
int is_same_branch = 0;

err = got_ref_resolve(&head_commit_id, repo, head_ref);
if (err)
goto done;

if (got_object_id_cmp(head_commit_id, commit_id) == 0) {
is_same_branch = 1;
goto done;
}
if (yca_id && got_object_id_cmp(commit_id, yca_id) == 0) {
is_same_branch = 1;
goto done;
}

err = got_commit_graph_open(&graph, "/", 1);
if (err)
goto done;

err = got_commit_graph_iter_start(graph, head_commit_id, repo,
   check_cancelled, NULL((void *)0));
if (err)
goto done;

for (;;) {
struct got_object_id *id;
err = got_commit_graph_iter_next(&id, graph, repo,
    check_cancelled, NULL((void *)0));
if (err) {
	if (err->code == GOT_ERR_ITER_COMPLETED46)
		err = NULL((void *)0);
	break;
}

if (id) {
	if (yca_id && got_object_id_cmp(id, yca_id) == 0)
		break;
	if (got_object_id_cmp(id, commit_id) == 0) {
		is_same_branch = 1;
		break;
	}
}
}
2695done:
if (graph)
got_commit_graph_close(graph);
free(head_commit_id);
if (!err && !is_same_branch)
err = got_error(GOT_ERR_ANCESTRY55);
return err;
2702}

2704static const struct got_error *
2705checkout_ancestry_error(struct got_reference *ref, const char *commit_id_str)
2706{
static char msg[512];
const char *branch_name;

if (got_ref_is_symbolic(ref))
branch_name = got_ref_get_symref_target(ref);
else
branch_name = got_ref_get_name(ref);

if (strncmp("refs/heads/", branch_name, 11) == 0)
branch_name += 11;

snprintf(msg, sizeof(msg),
   "target commit is not contained in branch '%s'; "
   "the branch to use must be specified with -b; "
   "if necessary a new branch can be created for "
   "this commit with 'got branch -c %s BRANCH_NAME'",
   branch_name, commit_id_str);

return got_error_msg(GOT_ERR_ANCESTRY55, msg);
2726}

2728static const struct got_error *
2729cmd_checkout(int argc, char *argv[])
2730{
const struct got_error *error = NULL((void *)0);
struct got_repository *repo = NULL((void *)0);
struct got_reference *head_ref = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
char *repo_path = NULL((void *)0);
char *worktree_path = NULL((void *)0);
const char *path_prefix = "";
const char *branch_name = GOT_REF_HEAD"HEAD";
char *commit_id_str = NULL((void *)0);
char *cwd = NULL((void *)0);
int ch, same_path_prefix, allow_nonempty = 0;
struct got_pathlist_head paths;
struct got_checkout_progress_arg cpa;

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

while ((ch = getopt(argc, argv, "b:c:Ep:")) != -1) {
switch (ch) {
case 'b':
	branch_name = optarg;
	break;
case 'c':
	commit_id_str = strdup(optarg);
	if (commit_id_str == NULL((void *)0))
		return got_error_from_errno("strdup");
	break;
case 'E':
	allow_nonempty = 1;
	break;
case 'p':
	path_prefix = optarg;
	break;
default:
	usage_checkout();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

2772#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd "
   "unveil", NULL((void *)0)) == -1)
err(1, "pledge");
2776#endif
if (argc == 1) {
char *base, *dotgit;
const char *path;
repo_path = realpath(argv[0], NULL((void *)0));
if (repo_path == NULL((void *)0))
	return got_error_from_errno2("realpath", argv[0]);
cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
	error = got_error_from_errno("getcwd");
	goto done;
}
if (path_prefix[0])
	path = path_prefix;
else
	path = repo_path;
error = got_path_basename(&base, path);
if (error)
	goto done;
dotgit = strstr(base, ".git");
if (dotgit)
	*dotgit = '\0';
if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
	error = got_error_from_errno("asprintf");
	free(base);
	goto done;
}
free(base);
} else if (argc == 2) {
repo_path = realpath(argv[0], NULL((void *)0));
if (repo_path == NULL((void *)0)) {
	error = got_error_from_errno2("realpath", argv[0]);
	goto done;
}
worktree_path = realpath(argv[1], NULL((void *)0));
if (worktree_path == NULL((void *)0)) {
	if (errno(*__errno()) != ENOENT2) {
		error = got_error_from_errno2("realpath",
		    argv[1]);
		goto done;
	}
	worktree_path = strdup(argv[1]);
	if (worktree_path == NULL((void *)0)) {
		error = got_error_from_errno("strdup");
		goto done;
	}
}
} else
usage_checkout();

got_path_strip_trailing_slashes(repo_path);
got_path_strip_trailing_slashes(worktree_path);

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

/* Pre-create work tree path for unveil(2) */
error = got_path_mkdir(worktree_path);
if (error) {
if (!(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EISDIR21) &&
    !(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EEXIST17))
	goto done;
if (!allow_nonempty &&
    !got_path_dir_is_empty(worktree_path)) {
	error = got_error_path(worktree_path,
	    GOT_ERR_DIR_NOT_EMPTY75);
	goto done;
}
}

error = apply_unveil(got_repo_get_path(repo), 0, worktree_path);
if (error)
goto done;

error = got_ref_open(&head_ref, repo, branch_name, 0);
if (error != NULL((void *)0))
goto done;

error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
if (error != NULL((void *)0) && !(error->code == GOT_ERR_ERRNO1 && errno(*__errno()) == EEXIST17))
goto done;

error = got_worktree_open(&worktree, worktree_path);
if (error != NULL((void *)0))
goto done;

error = got_worktree_match_path_prefix(&same_path_prefix, worktree,
   path_prefix);
if (error != NULL((void *)0))
goto done;
if (!same_path_prefix) {
error = got_error(GOT_ERR_PATH_PREFIX54);
goto done;
}

if (commit_id_str) {
struct got_object_id *commit_id;
struct got_reflist_head refs;
TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name,
    NULL((void *)0));
if (error)
	goto done;
error = got_repo_match_object_id(&commit_id, NULL((void *)0),
    commit_id_str, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
got_ref_list_free(&refs);
if (error)
	goto done;
error = check_linear_ancestry(commit_id,
    got_worktree_get_base_commit_id(worktree), 0, repo);
if (error != NULL((void *)0)) {
	free(commit_id);
	if (error->code == GOT_ERR_ANCESTRY55) {
		error = checkout_ancestry_error(
		    head_ref, commit_id_str);
	}
	goto done;
}
error = check_same_branch(commit_id, head_ref, NULL((void *)0), repo);
if (error) {
	if (error->code == GOT_ERR_ANCESTRY55) {
		error = checkout_ancestry_error(
		    head_ref, commit_id_str);
	}
	goto done;
}
error = got_worktree_set_base_commit_id(worktree, repo,
    commit_id);
free(commit_id);
if (error)
	goto done;
}

error = got_pathlist_append(&paths, "", NULL((void *)0));
if (error)
goto done;
cpa.worktree_path = worktree_path;
cpa.had_base_commit_ref_error = 0;
error = got_worktree_checkout_files(worktree, &paths, repo,
   checkout_progress, &cpa, check_cancelled, NULL((void *)0));
if (error != NULL((void *)0))
goto done;

printf("Now shut up and hack\n");
if (cpa.had_base_commit_ref_error)
show_worktree_base_ref_warning();
2923done:
got_pathlist_free(&paths);
free(commit_id_str);
free(repo_path);
free(worktree_path);
free(cwd);
return error;
2930}

2932struct got_update_progress_arg {
int did_something;
int conflicts;
int obstructed;
int not_updated;
2937};

2939void
2940print_update_progress_stats(struct got_update_progress_arg *upa)
2941{
if (!upa->did_something)
return;

if (upa->conflicts > 0)
printf("Files with new merge conflicts: %d\n", upa->conflicts);
if (upa->obstructed > 0)
printf("File paths obstructed by a non-regular file: %d\n",
    upa->obstructed);
if (upa->not_updated > 0)
printf("Files not updated because of existing merge "
    "conflicts: %d\n", upa->not_updated);
2953}

2955__dead__attribute__((__noreturn__)) static void
2956usage_update(void)
2957{
fprintf(stderr(&__sF[2]), "usage: %s update [-b branch] [-c commit] [path ...]\n",
   getprogname());
exit(1);
2961}

2963static const struct got_error *
2964update_progress(void *arg, unsigned char status, const char *path)
2965{
struct got_update_progress_arg *upa = arg;

if (status == GOT_STATUS_EXISTS'E' ||
   status == GOT_STATUS_BASE_REF_ERR'B')
return NULL((void *)0);

upa->did_something = 1;

/* Base commit bump happens silently. */
if (status == GOT_STATUS_BUMP_BASE'b')
return NULL((void *)0);

if (status == GOT_STATUS_CONFLICT'C')
upa->conflicts++;
if (status == GOT_STATUS_OBSTRUCTED'~')
upa->obstructed++;
if (status == GOT_STATUS_CANNOT_UPDATE'#')
upa->not_updated++;

while (path[0] == '/')
path++;
printf("%c  %s\n", status, path);
return NULL((void *)0);
2989}

2991static const struct got_error *
2992switch_head_ref(struct got_reference *head_ref,
  struct got_object_id *commit_id, struct got_worktree *worktree,
  struct got_repository *repo)
2995{
const struct got_error *err = NULL((void *)0);
char *base_id_str;
int ref_has_moved = 0;

/* Trivial case: switching between two different references. */
if (strcmp(got_ref_get_name(head_ref),
   got_worktree_get_head_ref_name(worktree)) != 0) {
printf("Switching work tree from %s to %s\n",
    got_worktree_get_head_ref_name(worktree),
    got_ref_get_name(head_ref));
return got_worktree_set_head_ref(worktree, head_ref);
}

err = check_linear_ancestry(commit_id,
   got_worktree_get_base_commit_id(worktree), 0, repo);
if (err) {
if (err->code != GOT_ERR_ANCESTRY55)
	return err;
ref_has_moved = 1;
}
if (!ref_has_moved)
return NULL((void *)0);

/* Switching to a rebased branch with the same reference name. */
err = got_object_id_str(&base_id_str,
   got_worktree_get_base_commit_id(worktree));
if (err)
return err;
printf("Reference %s now points at a different branch\n",
   got_worktree_get_head_ref_name(worktree));
printf("Switching work tree from %s to %s\n", base_id_str,
   got_worktree_get_head_ref_name(worktree));
return NULL((void *)0);
3029}

3031static const struct got_error *
3032check_rebase_or_histedit_in_progress(struct got_worktree *worktree)
3033{
const struct got_error *err;
int in_progress;

err = got_worktree_rebase_in_progress(&in_progress, worktree);
if (err)
return err;
if (in_progress)
return got_error(GOT_ERR_REBASING88);

err = got_worktree_histedit_in_progress(&in_progress, worktree);
if (err)
return err;
if (in_progress)
return got_error(GOT_ERR_HISTEDIT_BUSY96);

return NULL((void *)0);
3050}

3052static const struct got_error *
3053get_worktree_paths_from_argv(struct got_pathlist_head *paths, int argc,
  char *argv[], struct got_worktree *worktree)
3055{
const struct got_error *err = NULL((void *)0);
char *path;
int i;

if (argc == 0) {
path = strdup("");
if (path == NULL((void *)0))
	return got_error_from_errno("strdup");
return got_pathlist_append(paths, path, NULL((void *)0));
}

for (i = 0; i < argc; i++) {
err = got_worktree_resolve_path(&path, worktree, argv[i]);
if (err)
	break;
err = got_pathlist_append(paths, path, NULL((void *)0));
if (err) {
	free(path);
	break;
}
}

return err;
3079}

3081static const struct got_error *
3082wrap_not_worktree_error(const struct got_error *orig_err,
  const char *cmdname, const char *path)
3084{
const struct got_error *err;
struct got_repository *repo;
static char msg[512];

err = got_repo_open(&repo, path, NULL((void *)0));
if (err)
return orig_err;

snprintf(msg, sizeof(msg),
   "'got %s' needs a work tree in addition to a git repository\n"
   "Work trees can be checked out from this Git repository with "
   "'got checkout'.\n"
   "The got(1) manual page contains more information.", cmdname);
err = got_error_msg(GOT_ERR_NOT_WORKTREE60, msg);
got_repo_close(repo);
return err;
3101}

3103static const struct got_error *
3104cmd_update(int argc, char *argv[])
3105{
const struct got_error *error = NULL((void *)0);
struct got_repository *repo = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
char *worktree_path = NULL((void *)0);
struct got_object_id *commit_id = NULL((void *)0);
char *commit_id_str = NULL((void *)0);
const char *branch_name = NULL((void *)0);
struct got_reference *head_ref = NULL((void *)0);
struct got_pathlist_head paths;
struct got_pathlist_entry *pe;
int ch;
struct got_update_progress_arg upa;

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

while ((ch = getopt(argc, argv, "b:c:")) != -1) {
switch (ch) {
case 'b':
	branch_name = optarg;
	break;
case 'c':
	commit_id_str = strdup(optarg);
	if (commit_id_str == NULL((void *)0))
		return got_error_from_errno("strdup");
	break;
default:
	usage_update();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

3140#ifndef PROFILE
if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd "
   "unveil", NULL((void *)0)) == -1)
err(1, "pledge");
3144#endif
worktree_path = getcwd(NULL((void *)0), 0);
if (worktree_path == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}
error = got_worktree_open(&worktree, worktree_path);
if (error) {
if (error->code == GOT_ERR_NOT_WORKTREE60)
	error = wrap_not_worktree_error(error, "update",
	    worktree_path);
goto done;
}

error = check_rebase_or_histedit_in_progress(worktree);
if (error)
goto done;

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

error = apply_unveil(got_repo_get_path(repo), 0,
   got_worktree_get_root_path(worktree));
if (error)
goto done;

error = get_worktree_paths_from_argv(&paths, argc, argv, worktree);
if (error)
goto done;

error = got_ref_open(&head_ref, repo, branch_name ? branch_name :
   got_worktree_get_head_ref_name(worktree), 0);
if (error != NULL((void *)0))
goto done;
if (commit_id_str == NULL((void *)0)) {
error = got_ref_resolve(&commit_id, repo, head_ref);
if (error != NULL((void *)0))
	goto done;
error = got_object_id_str(&commit_id_str, commit_id);
if (error != NULL((void *)0))
	goto done;
} else {
struct got_reflist_head refs;
TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name,
    NULL((void *)0));
if (error)
	goto done;
error = got_repo_match_object_id(&commit_id, NULL((void *)0),
    commit_id_str, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
got_ref_list_free(&refs);
free(commit_id_str);
commit_id_str = NULL((void *)0);
if (error)
	goto done;
error = got_object_id_str(&commit_id_str, commit_id);
if (error)
	goto done;
}

if (branch_name) {
struct got_object_id *head_commit_id;
TAILQ_FOREACH(pe, &paths, entry)for((pe) = ((&paths)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next)) {
	if (pe->path_len == 0)
		continue;
	error = got_error_msg(GOT_ERR_BAD_PATH4,
	    "switching between branches requires that "
	    "the entire work tree gets updated");
	goto done;
}
error = got_ref_resolve(&head_commit_id, repo, head_ref);
if (error)
	goto done;
error = check_linear_ancestry(commit_id, head_commit_id, 0,
    repo);
free(head_commit_id);
if (error != NULL((void *)0))
	goto done;
error = check_same_branch(commit_id, head_ref, NULL((void *)0), repo);
if (error)
	goto done;
error = switch_head_ref(head_ref, commit_id, worktree, repo);
if (error)
	goto done;
} else {
error = check_linear_ancestry(commit_id,
    got_worktree_get_base_commit_id(worktree), 0, repo);
if (error != NULL((void *)0)) {
	if (error->code == GOT_ERR_ANCESTRY55)
		error = got_error(GOT_ERR_BRANCH_MOVED77);
	goto done;
}
error = check_same_branch(commit_id, head_ref, NULL((void *)0), repo);
if (error)
	goto done;
}

if (got_object_id_cmp(got_worktree_get_base_commit_id(worktree),
   commit_id) != 0) {
error = got_worktree_set_base_commit_id(worktree, repo,
    commit_id);
if (error)
	goto done;
}

memset(&upa, 0, sizeof(upa));
error = got_worktree_checkout_files(worktree, &paths, repo,
   update_progress, &upa, check_cancelled, NULL((void *)0));
if (error != NULL((void *)0))
goto done;

if (upa.did_something)
printf("Updated to commit %s\n", commit_id_str);
else
printf("Already up-to-date\n");
print_update_progress_stats(&upa);
3262done:
free(worktree_path);
TAILQ_FOREACH(pe, &paths, entry)for((pe) = ((&paths)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next))
free((char *)pe->path);
got_pathlist_free(&paths);
free(commit_id);
free(commit_id_str);
return error;
3270}

3272static const struct got_error *
3273diff_blobs(struct got_object_id *blob_id1, struct got_object_id *blob_id2,
  const char *path, int diff_context, int ignore_whitespace,
  int force_text_diff, struct got_repository *repo)
3276{
const struct got_error *err = NULL((void *)0);
struct got_blob_object *blob1 = NULL((void *)0), *blob2 = NULL((void *)0);

if (blob_id1) {
err = got_object_open_as_blob(&blob1, repo, blob_id1, 8192);
if (err)
	goto done;
}

err = got_object_open_as_blob(&blob2, repo, blob_id2, 8192);
if (err)
goto done;

while (path[0] == '/')
path++;
err = got_diff_blob(NULL((void *)0), NULL((void *)0), blob1, blob2, path, path,
   diff_context, ignore_whitespace, force_text_diff, stdout(&__sF[1]));
3294done:
if (blob1)
got_object_blob_close(blob1);
got_object_blob_close(blob2);
return err;
3299}

3301static const struct got_error *
3302diff_trees(struct got_object_id *tree_id1, struct got_object_id *tree_id2,
  const char *path, int diff_context, int ignore_whitespace,
  int force_text_diff, struct got_repository *repo)
3305{
const struct got_error *err = NULL((void *)0);
struct got_tree_object *tree1 = NULL((void *)0), *tree2 = NULL((void *)0);
struct got_diff_blob_output_unidiff_arg arg;

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

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

arg.diff_context = diff_context;
arg.ignore_whitespace = ignore_whitespace;
arg.force_text_diff = force_text_diff;
arg.outfile = stdout(&__sF[1]);
arg.line_offsets = NULL((void *)0);
arg.nlines = 0;
while (path[0] == '/')
path++;
err = got_diff_tree(tree1, tree2, path, path, repo,
   got_diff_blob_output_unidiff, &arg, 1);
3330done:
if (tree1)
got_object_tree_close(tree1);
if (tree2)
got_object_tree_close(tree2);
return err;
3336}

3338static const struct got_error *
3339get_changed_paths(struct got_pathlist_head *paths,
  struct got_commit_object *commit, struct got_repository *repo)
3341{
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);
3373done:
if (tree1)
got_object_tree_close(tree1);
if (tree2)
got_object_tree_close(tree2);
return err;
3379}

3381static const struct got_error *
3382print_patch(struct got_commit_object *commit, struct got_object_id *id,
  const char *path, int diff_context, struct got_repository *repo)
3384{
const struct got_error *err = NULL((void *)0);
struct got_commit_object *pcommit = NULL((void *)0);
char *id_str1 = NULL((void *)0), *id_str2 = NULL((void *)0);
struct got_object_id *obj_id1 = NULL((void *)0), *obj_id2 = 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)) {
err = got_object_open_as_commit(&pcommit, repo,
    qid->id);
if (err)
	return err;
}

if (path && path[0] != '\0') {
int obj_type;
err = got_object_id_by_path(&obj_id2, repo, id, path);
if (err)
	goto done;
err = got_object_id_str(&id_str2, obj_id2);
if (err) {
	free(obj_id2);
	goto done;
}
if (pcommit) {
	err = got_object_id_by_path(&obj_id1, repo,
	    qid->id, path);
	if (err) {
		if (err->code != GOT_ERR_NO_TREE_ENTRY50) {
			free(obj_id2);
			goto done;
		}
	} else {
		err = got_object_id_str(&id_str1, obj_id1);
		if (err) {
			free(obj_id2);
			goto done;
		}
	}
}
err = got_object_get_type(&obj_type, repo, obj_id2);
if (err) {
	free(obj_id2);
	goto done;
}
printf("diff %s %s\n", id_str1 ? id_str1 : "/dev/null", id_str2);
switch (obj_type) {
case GOT_OBJ_TYPE_BLOB3:
	err = diff_blobs(obj_id1, obj_id2, path, diff_context,
	    0, 0, repo);
	break;
case GOT_OBJ_TYPE_TREE2:
	err = diff_trees(obj_id1, obj_id2, path, diff_context,
	    0, 0, repo);
	break;
default:
	err = got_error(GOT_ERR_OBJ_TYPE11);
	break;
}
free(obj_id1);
free(obj_id2);
} else {
obj_id2 = got_object_commit_get_tree_id(commit);
err = got_object_id_str(&id_str2, obj_id2);
if (err)
	goto done;
if (pcommit) {
	obj_id1 = got_object_commit_get_tree_id(pcommit);
	err = got_object_id_str(&id_str1, obj_id1);
	if (err)
		goto done;
}
printf("diff %s %s\n", id_str1 ? id_str1 : "/dev/null",
    id_str2);
err = diff_trees(obj_id1, obj_id2, "", diff_context, 0, 0,
    repo);
}
3462done:
free(id_str1);
free(id_str2);
if (pcommit)
got_object_commit_close(pcommit);
return err;
3468}

3470static char *
3471get_datestr(time_t *time, char *datebuf)
3472{
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;
3486}

3488static const struct got_error *
3489match_logmsg(int *have_match, struct got_object_id *id,
  struct got_commit_object *commit, regex_t *regex)
3491{
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, logmsg, 1, &regmatch, 0) == 0)
*have_match = 1;
3508done:
free(id_str);
free(logmsg);
return err;
3512}

3514static void
3515match_changed_paths(int *have_match, struct got_pathlist_head *changed_paths,
  regex_t *regex)
3517{
regmatch_t regmatch;
struct got_pathlist_entry *pe;

*have_match = 0;

TAILQ_FOREACH(pe, changed_paths, entry)for((pe) = ((changed_paths)->tqh_first); (pe) != ((void *)
0); (pe) = ((pe)->entry.tqe_next)) {
if (regexec(regex, pe->path, 1, &regmatch, 0) == 0) {
	*have_match = 1;
	break;
}
}
3529}

3531#define GOT_COMMIT_SEP_STR"-----------------------------------------------\n" "-----------------------------------------------\n"

3533static const struct got_error*
3534build_refs_str(char **refs_str, struct got_reflist_head *refs,
  struct got_object_id *id, struct got_repository *repo)
3536{
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;
3598}

3600static const struct got_error *
3601print_commit(struct got_commit_object *commit, struct got_object_id *id,
  struct got_repository *repo, const char *path,
  struct got_pathlist_head *changed_paths, int show_patch,
  int diff_context, struct got_reflist_object_id_map *refs_idmap,
  const char *custom_refs_str)
3606{
const struct got_error *err = NULL((void *)0);
char *id_str, *datestr, *logmsg0, *logmsg, *line;
char datebuf[26];
time_t committer_time;
const char *author, *committer;
char *refs_str = NULL((void *)0);

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

if (custom_refs_str == NULL((void *)0)) {
struct got_reflist_head *refs;
refs = got_reflist_object_id_map_lookup(refs_idmap, id);
if (refs) {
	err = build_refs_str(&refs_str, refs, id, repo);
	if (err)
		goto done;
}
}

printf(GOT_COMMIT_SEP_STR"-----------------------------------------------\n");
if (custom_refs_str)
printf("commit %s (%s)\n", id_str, custom_refs_str); 
else
printf("commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
    refs_str ? refs_str : "", refs_str ? ")" : "");
free(id_str);
id_str = NULL((void *)0);
free(refs_str);
refs_str = NULL((void *)0);
printf("from: %s\n", got_object_commit_get_author(commit));
committer_time = got_object_commit_get_committer_time(commit);
datestr = get_datestr(&committer_time, datebuf);
if (datestr)
printf("date: %s UTC\n", datestr);
author = got_object_commit_get_author(commit);
committer = got_object_commit_get_committer(commit);
if (strcmp(author, committer) != 0)
printf("via: %s\n", committer);
if (got_object_commit_get_nparents(commit) > 1) {
const struct got_object_id_queue *parent_ids;
struct got_object_qid *qid;
int n = 1;
parent_ids = got_object_commit_get_parent_ids(commit);
SIMPLEQ_FOREACH(qid, parent_ids, entry)for((qid) = ((parent_ids)->sqh_first); (qid) != ((void *)0
); (qid) = ((qid)->entry.sqe_next)) {
	err = got_object_id_str(&id_str, qid->id);
	if (err)
		goto done;
	printf("parent %d: %s\n", n++, id_str);
	free(id_str);
	id_str = NULL((void *)0);
}
}

err = got_object_commit_get_logmsg(&logmsg0, commit);
if (err)
goto done;

logmsg = logmsg0;
do {
line = strsep(&logmsg, "\n");
if (line)
	printf(" %s\n", line);
} while (line);
free(logmsg0);

if (changed_paths) {
struct got_pathlist_entry *pe;
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;
	printf(" %c  %s\n", cp->status, pe->path);
}
printf("\n");
}
if (show_patch) {
err = print_patch(commit, id, path, diff_context, repo);
if (err == 0)
	printf("\n");
}

if (fflush(stdout(&__sF[1])) != 0 && err == NULL((void *)0))
err = got_error_from_errno("fflush");
3690done:
free(id_str);
free(refs_str);
return err;
3694}

3696static const struct got_error *
3697print_commits(struct got_object_id *root_id, struct got_object_id *end_id,
  struct got_repository *repo, const char *path, int show_changed_paths,
  int show_patch, const char *search_pattern, int diff_context, int limit,
  int log_branches, int reverse_display_order,
  struct got_reflist_object_id_map *refs_idmap)
3702{
const struct got_error *err;
struct got_commit_graph *graph;
regex_t regex;
int have_match;
struct got_object_id_queue reversed_commits;
struct got_object_qid *qid;
struct got_commit_object *commit;
struct got_pathlist_head changed_paths;
struct got_pathlist_entry *pe;

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

if (search_pattern && regcomp(&regex, search_pattern,
   REG_EXTENDED0001 | REG_NOSUB0004 | REG_NEWLINE0010))
return got_error_msg(GOT_ERR_REGEX112, search_pattern);

err = got_commit_graph_open(&graph, path, !log_branches);
if (err)
return err;
err = got_commit_graph_iter_start(graph, root_id, repo,
   check_cancelled, NULL((void *)0));
if (err)
goto done;
for (;;) {
struct got_object_id *id;

if (sigint_received || sigpipe_received)
	break;

err = got_commit_graph_iter_next(&id, graph, repo,
    check_cancelled, NULL((void *)0));
if (err) {
	if (err->code == GOT_ERR_ITER_COMPLETED46)
		err = NULL((void *)0);
	break;
}
if (id == NULL((void *)0))
	break;

err = got_object_open_as_commit(&commit, repo, id);
if (err)
	break;

if (show_changed_paths && !reverse_display_order) {
	err = get_changed_paths(&changed_paths, commit, repo);
	if (err)
		break;
}

if (search_pattern) {
	err = match_logmsg(&have_match, id, commit, &regex);
	if (err) {
		got_object_commit_close(commit);
		break;
	}
	if (have_match == 0 && show_changed_paths)
		match_changed_paths(&have_match,
		    &changed_paths, &regex);
	if (have_match == 0) {
		got_object_commit_close(commit);
		TAILQ_FOREACH(pe, &changed_paths, entry)for((pe) = ((&changed_paths)->tqh_first); (pe) != ((void
 *)0); (pe) = ((pe)->entry.tqe_next)) {
			free((char *)pe->path);
			free(pe->data);
		}
		got_pathlist_free(&changed_paths);
		continue;
	}
}

if (reverse_display_order) {
	err = got_object_qid_alloc(&qid, id);
	if (err)
		break;
	SIMPLEQ_INSERT_HEAD(&reversed_commits, qid, entry)do { if (((qid)->entry.sqe_next = (&reversed_commits)->
sqh_first) == ((void *)0)) (&reversed_commits)->sqh_last
 = &(qid)->entry.sqe_next; (&reversed_commits)->
sqh_first = (qid); } while (0);
	got_object_commit_close(commit);
} else {
	err = print_commit(commit, id, repo, path,
	    show_changed_paths ? &changed_paths : NULL((void *)0),
	    show_patch, diff_context, refs_idmap, NULL((void *)0));
	got_object_commit_close(commit);
	if (err)
		break;
}
if ((limit && --limit == 0) ||
    (end_id && got_object_id_cmp(id, end_id) == 0))
	break;

TAILQ_FOREACH(pe, &changed_paths, entry)for((pe) = ((&changed_paths)->tqh_first); (pe) != ((void
 *)0); (pe) = ((pe)->entry.tqe_next)) {
	free((char *)pe->path);
	free(pe->data);
}
got_pathlist_free(&changed_paths);
}
if (reverse_display_order) {
SIMPLEQ_FOREACH(qid, &reversed_commits, entry)for((qid) = ((&reversed_commits)->sqh_first); (qid) !=
 ((void *)0); (qid) = ((qid)->entry.sqe_next)) {
	err = got_object_open_as_commit(&commit, repo, qid->id);
	if (err)
		break;
	if (show_changed_paths) {
		err = get_changed_paths(&changed_paths,
		    commit, repo);
		if (err)
			break;
	}
	err = print_commit(commit, qid->id, repo, path,
	    show_changed_paths ? &changed_paths : NULL((void *)0),
	    show_patch, diff_context, refs_idmap, NULL((void *)0));
	got_object_commit_close(commit);
	if (err)
		break;
	TAILQ_FOREACH(pe, &changed_paths, entry)for((pe) = ((&changed_paths)->tqh_first); (pe) != ((void
 *)0); (pe) = ((pe)->entry.tqe_next)) {
		free((char *)pe->path);
		free(pe->data);
	}
	got_pathlist_free(&changed_paths);
}
}
3821done:
while (!SIMPLEQ_EMPTY(&reversed_commits)(((&reversed_commits)->sqh_first) == ((void *)0))) {
qid = SIMPLEQ_FIRST(&reversed_commits)((&reversed_commits)->sqh_first);
SIMPLEQ_REMOVE_HEAD(&reversed_commits, entry)do { if (((&reversed_commits)->sqh_first = (&reversed_commits
)->sqh_first->entry.sqe_next) == ((void *)0)) (&reversed_commits
)->sqh_last = &(&reversed_commits)->sqh_first; }
 while (0);
got_object_qid_free(qid);
}
TAILQ_FOREACH(pe, &changed_paths, entry)for((pe) = ((&changed_paths)->tqh_first); (pe) != ((void
 *)0); (pe) = ((pe)->entry.tqe_next)) {
free((char *)pe->path);
free(pe->data);
}
got_pathlist_free(&changed_paths);
if (search_pattern)
regfree(&regex);
got_commit_graph_close(graph);
return err;
3836}

3838__dead__attribute__((__noreturn__)) static void
3839usage_log(void)
3840{
fprintf(stderr(&__sF[2]), "usage: %s log [-b] [-c commit] [-C number] [ -l N ] "
   "[-p] [-P] [-x commit] [-s search-pattern] [-r repository-path] "
   "[-R] [path]\n", getprogname());
exit(1);
3845}

3847static int
3848get_default_log_limit(void)
3849{
const char *got_default_log_limit;
long long n;
const char *errstr;

got_default_log_limit = getenv("GOT_LOG_DEFAULT_LIMIT");
if (got_default_log_limit == NULL((void *)0))
return 0;
n = strtonum(got_default_log_limit, 0, INT_MAX2147483647, &errstr);
if (errstr != NULL((void *)0))
return 0;
return n;
3861}

3863static const struct got_error *
3864cmd_log(int argc, char *argv[])
3865{
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), *end_id = NULL((void *)0);
char *repo_path = NULL((void *)0), *path = NULL((void *)0), *cwd = NULL((void *)0), *in_repo_path = NULL((void *)0);
const char *start_commit = NULL((void *)0), *end_commit = NULL((void *)0);
const char *search_pattern = NULL((void *)0);
int diff_context = -1, ch;
int show_changed_paths = 0, show_patch = 0, limit = 0, log_branches = 0;
int reverse_display_order = 0;
const char *errstr;
struct got_reflist_head refs;
struct got_reflist_object_id_map *refs_idmap = NULL((void *)0);

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

3882#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
   NULL((void *)0))
   == -1)
err(1, "pledge");
3887#endif

limit = get_default_log_limit();

while ((ch = getopt(argc, argv, "bpPc:C:l:r:Rs:x:")) != -1) {
switch (ch) {
case 'p':
	show_patch = 1;
	break;
case 'P':
	show_changed_paths = 1;
	break;
case 'c':
	start_commit = optarg;
	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 'l':
	limit = strtonum(optarg, 0, INT_MAX2147483647, &errstr);
	if (errstr != NULL((void *)0))
		err(1, "-l option %s", errstr);
	break;
case 'b':
	log_branches = 1;
	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 'R':
	reverse_display_order = 1;
	break;
case 's':
	search_pattern = optarg;
	break;
case 'x':
	end_commit = optarg;
	break;
default:
	usage_log();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (diff_context == -1)
diff_context = 3;
else if (!show_patch)
errx(1, "-C requires -p");

cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}

if (repo_path == NULL((void *)0)) {
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
error = NULL((void *)0);
}

if (argc == 1) {
if (worktree) {
	error = got_worktree_resolve_path(&path, worktree,
	    argv[0]);
	if (error)
		goto done;
} else {
	path = strdup(argv[0]);
	if (path == NULL((void *)0)) {
		error = got_error_from_errno("strdup");
		goto done;
	}
}
} else if (argc != 0)
usage_log();

if (repo_path == NULL((void *)0)) {
repo_path = worktree ?
    strdup(got_worktree_get_repo_path(worktree)) : 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 = apply_unveil(got_repo_get_path(repo), 1,
   worktree ? got_worktree_get_root_path(worktree) : NULL((void *)0));
if (error)
goto done;

error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name, NULL((void *)0));
if (error)
goto done;

error = got_reflist_object_id_map_create(&refs_idmap, &refs, repo);
if (error)
goto done;

if (start_commit == NULL((void *)0)) {
struct got_reference *head_ref;
struct got_commit_object *commit = NULL((void *)0);
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(&start_id, repo, head_ref);
got_ref_close(head_ref);
if (error != NULL((void *)0))
	goto done;
error = got_object_open_as_commit(&commit, repo,
    start_id);
if (error != NULL((void *)0))
	goto done;
got_object_commit_close(commit);
} else {
error = got_repo_match_object_id(&start_id, NULL((void *)0),
    start_commit, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
if (error != NULL((void *)0))
	goto done;
}
if (end_commit != NULL((void *)0)) {
error = got_repo_match_object_id(&end_id, NULL((void *)0),
    end_commit, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
if (error != NULL((void *)0))
	goto done;
}

if (worktree) {
/*
 * If a path was specified on the command line it was resolved
 * to a path in the work tree above. Prepend the work tree's
 * path prefix to obtain the corresponding in-repository path.
 */
if (path) {
	const char *prefix;
	prefix = got_worktree_get_path_prefix(worktree);
	if (asprintf(&in_repo_path, "%s%s%s", prefix,
	    (path[0] != '\0') ? "/" : "", path) == -1) {
		error = got_error_from_errno("asprintf");
		goto done;
	}
}
} else
error = got_repo_map_path(&in_repo_path, repo,
    path ? path : "");
if (error != NULL((void *)0))
goto done;
if (in_repo_path) {
free(path);
path = in_repo_path;
}

error = print_commits(start_id, end_id, repo, path ? path : "",
   show_changed_paths, show_patch, search_pattern, diff_context,
   limit, log_branches, reverse_display_order, refs_idmap);
4059done:
free(path);
free(repo_path);
free(cwd);
if (worktree)
got_worktree_close(worktree);
if (repo) {
const struct got_error *repo_error;
repo_error = got_repo_close(repo);
if (error == NULL((void *)0))
	error = repo_error;
}
if (refs_idmap)
got_reflist_object_id_map_free(refs_idmap);
got_ref_list_free(&refs);
return error;
4075}

4077__dead__attribute__((__noreturn__)) static void
4078usage_diff(void)
4079{
fprintf(stderr(&__sF[2]), "usage: %s diff [-a] [-C number] [-r repository-path] "
   "[-s] [-w] [object1 object2 | path]\n", getprogname());
exit(1);
4083}

4085struct print_diff_arg {
struct got_repository *repo;
struct got_worktree *worktree;
int diff_context;
const char *id_str;
int header_shown;
int diff_staged;
int ignore_whitespace;
int force_text_diff;
4094};

4096/*
* Create a file which contains the target path of a symlink so we can feed
* it as content to the diff engine.
*/
4100static const struct got_error *
4101get_symlink_target_file(int *fd, int dirfd, const char *de_name,
  const char *abspath)
4103{
const struct got_error *err = NULL((void *)0);
char target_path[PATH_MAX1024];
ssize_t target_len, outlen;

*fd = -1;

if (dirfd != -1) {
target_len = readlinkat(dirfd, de_name, target_path, PATH_MAX1024);
if (target_len == -1)
	return got_error_from_errno2("readlinkat", abspath);
} else {
target_len = readlink(abspath, target_path, PATH_MAX1024);
if (target_len == -1)
	return got_error_from_errno2("readlink", abspath);
}

*fd = got_opentempfd();
if (*fd == -1)
return got_error_from_errno("got_opentempfd");

outlen = write(*fd, target_path, target_len);
if (outlen == -1) {
err = got_error_from_errno("got_opentempfd");
goto done;
}

if (lseek(*fd, 0, SEEK_SET0) == -1) {
err = got_error_from_errno2("lseek", abspath);
goto done;
}
4134done:
if (err) {
close(*fd);
*fd = -1;
}
return err;
4140}

4142static const struct got_error *
4143print_diff(void *arg, unsigned char status, unsigned char staged_status,
  const char *path, struct got_object_id *blob_id,
  struct got_object_id *staged_blob_id, struct got_object_id *commit_id,
  int dirfd, const char *de_name)
4147{
struct print_diff_arg *a = arg;
const struct got_error *err = NULL((void *)0);
struct got_blob_object *blob1 = NULL((void *)0);
int fd = -1;
FILE *f2 = NULL((void *)0);
char *abspath = NULL((void *)0), *label1 = NULL((void *)0);
struct stat sb;

if (a->diff_staged) {
if (staged_status != GOT_STATUS_MODIFY'M' &&
    staged_status != GOT_STATUS_ADD'A' &&
    staged_status != GOT_STATUS_DELETE'D')
	return NULL((void *)0);
} else {
if (staged_status == GOT_STATUS_DELETE'D')
	return NULL((void *)0);
if (status == GOT_STATUS_NONEXISTENT'N')
	return got_error_set_errno(ENOENT2, path);
if (status != GOT_STATUS_MODIFY'M' &&
    status != GOT_STATUS_ADD'A' &&
    status != GOT_STATUS_DELETE'D' &&
    status != GOT_STATUS_CONFLICT'C')
	return NULL((void *)0);
}

if (!a->header_shown) {
printf("diff %s %s%s\n", a->id_str,
    got_worktree_get_root_path(a->worktree),
    a->diff_staged ? " (staged changes)" : "");
a->header_shown = 1;
}

if (a->diff_staged) {
const char *label1 = NULL((void *)0), *label2 = NULL((void *)0);
switch (staged_status) {
case GOT_STATUS_MODIFY'M':
	label1 = path;
	label2 = path;
	break;
case GOT_STATUS_ADD'A':
	label2 = path;
	break;
case GOT_STATUS_DELETE'D':
	label1 = path;
	break;
default:
	return got_error(GOT_ERR_FILE_STATUS68);
}
return got_diff_objects_as_blobs(NULL((void *)0), NULL((void *)0), blob_id,
    staged_blob_id, label1, label2, a->diff_context,
    a->ignore_whitespace, a->force_text_diff, a->repo, stdout(&__sF[1]));
}

if (staged_status == GOT_STATUS_ADD'A' ||
   staged_status == GOT_STATUS_MODIFY'M') {
char *id_str;
err = got_object_open_as_blob(&blob1, a->repo, staged_blob_id,
    8192);
if (err)
	goto done;
err = got_object_id_str(&id_str, staged_blob_id);
if (err)
	goto done;
if (asprintf(&label1, "%s (staged)", id_str) == -1) {
	err = got_error_from_errno("asprintf");
	free(id_str);
	goto done;
}
free(id_str);
} else if (status != GOT_STATUS_ADD'A') {
err = got_object_open_as_blob(&blob1, a->repo, blob_id, 8192);
if (err)
	goto done;
}

if (status != GOT_STATUS_DELETE'D') {
if (asprintf(&abspath, "%s/%s",
    got_worktree_get_root_path(a->worktree), path) == -1) {
	err = got_error_from_errno("asprintf");
	goto done;
}

if (dirfd != -1) {
	fd = openat(dirfd, de_name, O_RDONLY0x0000 | O_NOFOLLOW0x0100);
	if (fd == -1) {
		if (errno(*__errno()) != ELOOP62) {
			err = got_error_from_errno2("openat",
			    abspath);
			goto done;
		}
		err = get_symlink_target_file(&fd, dirfd,
		    de_name, abspath);
		if (err)
			goto done;
	}
} else {
	fd = open(abspath, O_RDONLY0x0000 | O_NOFOLLOW0x0100);
	if (fd == -1) {
		if (errno(*__errno()) != ELOOP62) {
			err = got_error_from_errno2("open",
			    abspath);
			goto done;
		}
		err = get_symlink_target_file(&fd, dirfd,
		    de_name, abspath);
		if (err)
			goto done;
	}
}
if (fstat(fd, &sb) == -1) {
	err = got_error_from_errno2("fstat", abspath);
	goto done;
}
f2 = fdopen(fd, "r");
if (f2 == NULL((void *)0)) {
	err = got_error_from_errno2("fdopen", abspath);
	goto done;
}
fd = -1;
} else
sb.st_size = 0;

err = got_diff_blob_file(blob1, label1, f2, sb.st_size, path,
   a->diff_context, a->ignore_whitespace, a->force_text_diff, stdout(&__sF[1]));
4272done:
if (blob1)
got_object_blob_close(blob1);
if (f2 && fclose(f2) == EOF(-1) && err == NULL((void *)0))
err = got_error_from_errno("fclose");
if (fd != -1 && close(fd) == -1 && err == NULL((void *)0))
err = got_error_from_errno("close");
free(abspath);
return err;
4281}

4283static const struct got_error *
4284cmd_diff(int argc, char *argv[])
4285{
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);
struct got_object_id *id1 = NULL((void *)0), *id2 = NULL((void *)0);
const char *id_str1 = NULL((void *)0), *id_str2 = NULL((void *)0);
char *label1 = NULL((void *)0), *label2 = NULL((void *)0);
int type1, type2;
int diff_context = 3, diff_staged = 0, ignore_whitespace = 0, ch;
int force_text_diff = 0;
const char *errstr;
char *path = NULL((void *)0);
struct got_reflist_head refs;

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

4302#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
   NULL((void *)0)) == -1)
err(1, "pledge");
4306#endif

while ((ch = getopt(argc, argv, "aC:r:sw")) != -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 's':
	diff_staged = 1;
	break;
case 'w':
	ignore_whitespace = 1;
	break;
default:
	usage_diff();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}
if (argc <= 1) {
if (repo_path)
	errx(1,
	    "-r option can't be used when diffing a work tree");
error = got_worktree_open(&worktree, cwd);
if (error) {
	if (error->code == GOT_ERR_NOT_WORKTREE60)
		error = wrap_not_worktree_error(error, "diff",
		    cwd);
	goto done;
}
repo_path = strdup(got_worktree_get_repo_path(worktree));
if (repo_path == NULL((void *)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
if (argc == 1) {
	error = got_worktree_resolve_path(&path, worktree,
	    argv[0]);
	if (error)
		goto done;
} else {
	path = strdup("");
	if (path == NULL((void *)0)) {
		error = got_error_from_errno("strdup");
		goto done;
	}
}
} else if (argc == 2) {
if (diff_staged)
	errx(1, "-s option can't be used when diffing "
	    "objects in repository");
id_str1 = argv[0];
id_str2 = argv[1];
if (repo_path == NULL((void *)0)) {
	error = got_worktree_open(&worktree, cwd);
	if (error && error->code != GOT_ERR_NOT_WORKTREE60)
		goto done;
	repo_path = strdup(worktree ?
	    got_worktree_get_repo_path(worktree) : cwd);
	if (repo_path == NULL((void *)0)) {
		error = got_error_from_errno("strdup");
		goto done;
	}
}
} else
usage_diff();

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

error = apply_unveil(got_repo_get_path(repo), 1,
   worktree ? got_worktree_get_root_path(worktree) : NULL((void *)0));
if (error)
goto done;

if (argc <= 1) {
struct print_diff_arg arg;
struct got_pathlist_head paths;
char *id_str;

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

error = got_object_id_str(&id_str,
    got_worktree_get_base_commit_id(worktree));
if (error)
	goto done;
arg.repo = repo;
arg.worktree = worktree;
arg.diff_context = diff_context;
arg.id_str = id_str;
arg.header_shown = 0;
arg.diff_staged = diff_staged;
arg.ignore_whitespace = ignore_whitespace;
arg.force_text_diff = force_text_diff;

error = got_pathlist_append(&paths, path, NULL((void *)0));
if (error)
	goto done;

error = got_worktree_status(worktree, &paths, repo, print_diff,
    &arg, check_cancelled, NULL((void *)0));
free(id_str);
got_pathlist_free(&paths);
goto done;
}

error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name, NULL((void *)0));
if (error)
return error;

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

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

error = got_object_get_type(&type1, repo, id1);
if (error)
goto done;

error = got_object_get_type(&type2, repo, id2);
if (error)
goto done;

if (type1 != type2) {
error = got_error(GOT_ERR_OBJ_TYPE11);
goto done;
}

switch (type1) {
case GOT_OBJ_TYPE_BLOB3:
error = got_diff_objects_as_blobs(NULL((void *)0), NULL((void *)0), id1, id2,
    NULL((void *)0), NULL((void *)0), diff_context, ignore_whitespace,
    force_text_diff, repo, stdout(&__sF[1]));
break;
case GOT_OBJ_TYPE_TREE2:
error = got_diff_objects_as_trees(NULL((void *)0), NULL((void *)0), id1, id2,
    "", "", diff_context, ignore_whitespace, force_text_diff,
    repo, stdout(&__sF[1]));
break;
case GOT_OBJ_TYPE_COMMIT1:
printf("diff %s %s\n", label1, label2);
error = got_diff_objects_as_commits(NULL((void *)0), NULL((void *)0), id1, id2,
    diff_context, ignore_whitespace, force_text_diff, repo,
    stdout(&__sF[1]));
break;
default:
error = got_error(GOT_ERR_OBJ_TYPE11);
}
4482done:
free(label1);
free(label2);
free(id1);
free(id2);
free(path);
if (worktree)
got_worktree_close(worktree);
if (repo) {
const struct got_error *repo_error;
repo_error = got_repo_close(repo);
if (error == NULL((void *)0))
	error = repo_error;
}
got_ref_list_free(&refs);
return error;
4498}

4500__dead__attribute__((__noreturn__)) static void
4501usage_blame(void)
4502{
fprintf(stderr(&__sF[2]),
   "usage: %s blame [-c commit] [-r repository-path] path\n",
   getprogname());
exit(1);
4507}

4509struct blame_line {
int annotated;
char *id_str;
char *committer;
char datebuf[11]; /* YYYY-MM-DD + NUL */
4514};

4516struct blame_cb_args {
struct blame_line *lines;
int nlines;
int nlines_prec;
int lineno_cur;
off_t *line_offsets;
FILE *f;
struct got_repository *repo;
4524};

4526static const struct got_error *
4527blame_cb(void *arg, int nlines, int lineno, struct got_object_id *id)
4528{
const struct got_error *err = NULL((void *)0);
struct blame_cb_args *a = arg;
struct blame_line *bline;
char *line = NULL((void *)0);
size_t linesize = 0;
struct got_commit_object *commit = NULL((void *)0);
off_t offset;
struct tm tm;
time_t committer_time;

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

if (sigint_received)
return got_error(GOT_ERR_ITER_COMPLETED46);

if (lineno == -1)
return NULL((void *)0); /* no change in this commit */

/* Annotate this line. */
bline = &a->lines[lineno - 1];
if (bline->annotated)
return NULL((void *)0);
err = got_object_id_str(&bline->id_str, id);
if (err)
return err;

err = got_object_open_as_commit(&commit, a->repo, id);
if (err)
goto done;

bline->committer = strdup(got_object_commit_get_committer(commit));
if (bline->committer == NULL((void *)0)) {
err = got_error_from_errno("strdup");
goto done;
}

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(bline->datebuf, sizeof(bline->datebuf), "%G-%m-%d",
   &tm) == 0) {
err = got_error(GOT_ERR_NO_SPACE9);
goto done;
}
bline->annotated = 1;

/* Print lines annotated so far. */
bline = &a->lines[a->lineno_cur - 1];
if (!bline->annotated)
goto done;

offset = a->line_offsets[a->lineno_cur - 1];
if (fseeko(a->f, offset, SEEK_SET0) == -1) {
err = got_error_from_errno("fseeko");
goto done;
}

while (bline->annotated) {
char *smallerthan, *at, *nl, *committer;
size_t len;

if (getline(&line, &linesize, a->f) == -1) {
	if (ferror(a->f)(!__isthreaded ? (((a->f)->_flags & 0x0040) != 0) :
 (ferror)(a->f)))
		err = got_error_from_errno("getline");
	break;
}

committer = bline->committer;
smallerthan = strchr(committer, '<');
if (smallerthan && smallerthan[1] != '\0')
	committer = smallerthan + 1;
at = strchr(committer, '@');
if (at)
	*at = '\0';
len = strlen(committer);
if (len >= 9)
	committer[8] = '\0';

nl = strchr(line, '\n');
if (nl)
	*nl = '\0';
printf("%.*d) %.8s %s %-8s %s\n", a->nlines_prec, a->lineno_cur,
    bline->id_str, bline->datebuf, committer, line);

a->lineno_cur++;
bline = &a->lines[a->lineno_cur - 1];
}
4618done:
if (commit)
got_object_commit_close(commit);
free(line);
return err;
4623}

4625static const struct got_error *
4626cmd_blame(int argc, char *argv[])
4627{
const struct got_error *error;
struct got_repository *repo = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
char *path, *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 *obj_id = NULL((void *)0);
struct got_object_id *commit_id = NULL((void *)0);
struct got_blob_object *blob = NULL((void *)0);
char *commit_id_str = NULL((void *)0);
struct blame_cb_args bca;
int ch, obj_type, i;
off_t filesize;

memset(&bca, 0, sizeof(bca));

4643#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
   NULL((void *)0)) == -1)
err(1, "pledge");
4647#endif

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);
	got_path_strip_trailing_slashes(repo_path);
	break;
default:
	usage_blame();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc == 1)
path = argv[0];
else
usage_blame();

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

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

error = got_worktree_resolve_path(&p, worktree, path);
if (error)
	goto done;
if (asprintf(&in_repo_path, "%s%s%s", prefix,
    (p[0] != '\0' && !got_path_is_root_dir(prefix)) ? "/" : "",
    p) == -1) {
	error = got_error_from_errno("asprintf");
	free(p);
	goto done;
}
free(p);
error = apply_unveil(got_repo_get_path(repo), 1, NULL((void *)0));
} else {
error = apply_unveil(got_repo_get_path(repo), 1, NULL((void *)0));
if (error)
	goto done;
error = got_repo_map_path(&in_repo_path, repo, path);
}
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);
if (error != NULL((void *)0))
	goto done;
} else {
struct got_reflist_head refs;
TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name,
    NULL((void *)0));
if (error)
	goto done;
error = got_repo_match_object_id(&commit_id, NULL((void *)0),
    commit_id_str, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
got_ref_list_free(&refs);
if (error)
	goto done;
}

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

error = got_object_id_by_path(&obj_id, repo, commit_id,
   link_target ? link_target : in_repo_path);
if (error)
goto done;

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

if (obj_type != GOT_OBJ_TYPE_BLOB3) {
error = got_error_path(link_target ? link_target : in_repo_path,
    GOT_ERR_OBJ_TYPE11);
goto done;
}

error = got_object_open_as_blob(&blob, repo, obj_id, 8192);
if (error)
goto done;
bca.f = got_opentemp();
if (bca.f == NULL((void *)0)) {
error = got_error_from_errno("got_opentemp");
goto done;
}
error = got_object_blob_dump_to_file(&filesize, &bca.nlines,
   &bca.line_offsets, bca.f, blob);
if (error || bca.nlines == 0)
goto done;

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

bca.lines = calloc(bca.nlines, sizeof(*bca.lines));
if (bca.lines == NULL((void *)0)) {
error = got_error_from_errno("calloc");
goto done;
}
bca.lineno_cur = 1;
bca.nlines_prec = 0;
i = bca.nlines;
while (i > 0) {
i /= 10;
bca.nlines_prec++;
}
bca.repo = repo;

error = got_blame(link_target ? link_target : in_repo_path, commit_id,
   repo, blame_cb, &bca, check_cancelled, NULL((void *)0));
4809done:
free(in_repo_path);
free(link_target);
free(repo_path);
free(cwd);
free(commit_id);
free(obj_id);
if (blob)
got_object_blob_close(blob);
if (worktree)
got_worktree_close(worktree);
if (repo) {
const struct got_error *repo_error;
repo_error = got_repo_close(repo);
if (error == NULL((void *)0))
	error = repo_error;
}
if (bca.lines) {
for (i = 0; i < bca.nlines; i++) {
	struct blame_line *bline = &bca.lines[i];
	free(bline->id_str);
	free(bline->committer);
}
free(bca.lines);
}
free(bca.line_offsets);
if (bca.f && fclose(bca.f) == EOF(-1) && error == NULL((void *)0))
error = got_error_from_errno("fclose");
return error;
4838}

4840__dead__attribute__((__noreturn__)) static void
4841usage_tree(void)
4842{
fprintf(stderr(&__sF[2]),
   "usage: %s tree [-c commit] [-r repository-path] [-iR] [path]\n",
   getprogname());
exit(1);
4847}

4849static const struct got_error *
4850print_entry(struct got_tree_entry *te, const char *id, const char *path,
  const char *root_path, struct got_repository *repo)
4852{
const struct got_error *err = NULL((void *)0);
int is_root_path = (strcmp(path, root_path) == 0);
const char *modestr = "";
mode_t mode = got_tree_entry_get_mode(te);
char *link_target = NULL((void *)0);

path += strlen(root_path);
while (path[0] == '/')
path++;

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, repo);
if (err)
	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 = "*";

printf("%s%s%s%s%s%s%s\n", id ? id : "", path,
   is_root_path ? "" : "/", got_tree_entry_get_name(te), modestr,
   link_target ? " -> ": "", link_target ? link_target : "");

free(link_target);
return NULL((void *)0);
4889}

4891static const struct got_error *
4892print_tree(const char *path, struct got_object_id *commit_id,
  int show_ids, int recurse, const char *root_path,
  struct got_repository *repo)
4895{
const struct got_error *err = NULL((void *)0);
struct got_object_id *tree_id = NULL((void *)0);
struct got_tree_object *tree = NULL((void *)0);
int nentries, i;

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

err = got_object_open_as_tree(&tree, repo, tree_id);
if (err)
goto done;
nentries = got_object_tree_get_nentries(tree);
for (i = 0; i < nentries; i++) {
struct got_tree_entry *te;
char *id = NULL((void *)0);

if (sigint_received || sigpipe_received)
	break;

te = got_object_tree_get_entry(tree, i);
if (show_ids) {
	char *id_str;
	err = got_object_id_str(&id_str,
	    got_tree_entry_get_id(te));
	if (err)
		goto done;
	if (asprintf(&id, "%s ", id_str) == -1) {
		err = got_error_from_errno("asprintf");
		free(id_str);
		goto done;
	}
	free(id_str);
}
err = print_entry(te, id, path, root_path, repo);
free(id);
if (err)
	goto done;

if (recurse && S_ISDIR(got_tree_entry_get_mode(te))((got_tree_entry_get_mode(te) & 0170000) == 0040000)) {
	char *child_path;
	if (asprintf(&child_path, "%s%s%s", path,
	    path[0] == '/' && path[1] == '\0' ? "" : "/",
	    got_tree_entry_get_name(te)) == -1) {
		err = got_error_from_errno("asprintf");
		goto done;
	}
	err = print_tree(child_path, commit_id, show_ids, 1,
	    root_path, repo);
	free(child_path);
	if (err)
		goto done;
}
}
4950done:
if (tree)
got_object_tree_close(tree);
free(tree_id);
return err;
4955}

4957static const struct got_error *
4958cmd_tree(int argc, char *argv[])
4959{
const struct got_error *error;
struct got_repository *repo = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
const char *path, *refname = 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);
char *commit_id_str = NULL((void *)0);
int show_ids = 0, recurse = 0;
int ch;

4970#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
   NULL((void *)0)) == -1)
err(1, "pledge");
4974#endif

while ((ch = getopt(argc, argv, "c:r:iR")) != -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);
	got_path_strip_trailing_slashes(repo_path);
	break;
case 'i':
	show_ids = 1;
	break;
case 'R':
	recurse = 1;
	break;
default:
	usage_tree();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

if (argc == 1)
path = argv[0];
else if (argc > 1)
usage_tree();
else
path = NULL((void *)0);

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

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

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

if (commit_id_str == NULL((void *)0)) {
struct got_reference *head_ref;
if (worktree)
	refname = got_worktree_get_head_ref_name(worktree);
else
	refname = GOT_REF_HEAD"HEAD";
error = got_ref_open(&head_ref, repo, refname, 0);
if (error != NULL((void *)0))
	goto done;
error = got_ref_resolve(&commit_id, repo, head_ref);
got_ref_close(head_ref);
if (error != NULL((void *)0))
	goto done;
} else {
struct got_reflist_head refs;
TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name,
    NULL((void *)0));
if (error)
	goto done;
error = got_repo_match_object_id(&commit_id, NULL((void *)0),
    commit_id_str, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
got_ref_list_free(&refs);
if (error)
	goto done;
}

error = print_tree(in_repo_path, commit_id, show_ids, recurse,
   in_repo_path, repo);
5101done:
free(in_repo_path);
free(repo_path);
free(cwd);
free(commit_id);
if (worktree)
got_worktree_close(worktree);
if (repo) {
const struct got_error *repo_error;
repo_error = got_repo_close(repo);
if (error == NULL((void *)0))
	error = repo_error;
}
return error;
5115}

5117__dead__attribute__((__noreturn__)) static void
5118usage_status(void)
5119{
fprintf(stderr(&__sF[2]), "usage: %s status [-s status-codes ] [path ...]\n",
   getprogname());
exit(1);
5123}

5125static const struct got_error *
5126print_status(void *arg, unsigned char status, unsigned char staged_status,
  const char *path, struct got_object_id *blob_id,
  struct got_object_id *staged_blob_id, struct got_object_id *commit_id,
  int dirfd, const char *de_name)
5130{
if (status == staged_status && (status == GOT_STATUS_DELETE'D'))
status = GOT_STATUS_NO_CHANGE' ';
if (arg) {
char *status_codes = arg;
size_t ncodes = strlen(status_codes);
int i;
for (i = 0; i < ncodes ; i++) {
	if (status == status_codes[i] ||
	    staged_status == status_codes[i])
		break;
}
if (i == ncodes)
	return NULL((void *)0);
}
printf("%c%c %s\n", status, staged_status, path);
return NULL((void *)0);
5147}

5149static const struct got_error *
5150cmd_status(int argc, char *argv[])
5151{
const struct got_error *error = NULL((void *)0);
struct got_repository *repo = NULL((void *)0);
struct got_worktree *worktree = NULL((void *)0);
char *cwd = NULL((void *)0), *status_codes = NULL((void *)0);;
struct got_pathlist_head paths;
struct got_pathlist_entry *pe;
int ch, i;

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

while ((ch = getopt(argc, argv, "s:")) != -1) {
switch (ch) {
case 's':
	for (i = 0; i < strlen(optarg); i++) {
		switch (optarg[i]) {
		case GOT_STATUS_MODIFY'M':
		case GOT_STATUS_ADD'A':
		case GOT_STATUS_DELETE'D':
		case GOT_STATUS_CONFLICT'C':
		case GOT_STATUS_MISSING'!':
		case GOT_STATUS_OBSTRUCTED'~':
		case GOT_STATUS_UNVERSIONED'?':
		case GOT_STATUS_MODE_CHANGE'm':
		case GOT_STATUS_NONEXISTENT'N':
			break;
		default:
			errx(1, "invalid status code '%c'",
			    optarg[i]);
		}
	}
	status_codes = optarg;
	break;
default:
	usage_status();
	/* NOTREACHED */
}
}

argc -= optind;
argv += optind;

5193#ifndef PROFILE
if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
   NULL((void *)0)) == -1)
err(1, "pledge");
5197#endif
cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}

error = got_worktree_open(&worktree, cwd);
if (error) {
if (error->code == GOT_ERR_NOT_WORKTREE60)
	error = wrap_not_worktree_error(error, "status", cwd);
goto done;
}

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

error = apply_unveil(got_repo_get_path(repo), 1,
   got_worktree_get_root_path(worktree));
if (error)
goto done;

error = get_worktree_paths_from_argv(&paths, argc, argv, worktree);
if (error)
goto done;

error = got_worktree_status(worktree, &paths, repo, print_status,
   status_codes, check_cancelled, NULL((void *)0));
5227done:
TAILQ_FOREACH(pe, &paths, entry)for((pe) = ((&paths)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next))
free((char *)pe->path);
got_pathlist_free(&paths);
free(cwd);
return error;
5233}

5235__dead__attribute__((__noreturn__)) static void
5236usage_ref(void)
5237{
fprintf(stderr(&__sF[2]),
   "usage: %s ref [-r repository] [-l] [-c object] [-s reference] "
       "[-d] [name]\n",
   getprogname());
exit(1);
5243}

5245static const struct got_error *
5246list_refs(struct got_repository *repo, const char *refname)
5247{
static const struct got_error *err = NULL((void *)0);
struct got_reflist_head refs;
struct got_reflist_entry *re;

TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
err = got_ref_list(&refs, repo, refname, got_ref_cmp_by_name, NULL((void *)0));
if (err)
return err;

TAILQ_FOREACH(re, &refs, entry)for((re) = ((&refs)->tqh_first); (re) != ((void *)0); (
re) = ((re)->entry.tqe_next)) {
char *refstr;
refstr = got_ref_to_str(re->ref);
if (refstr == NULL((void *)0))
	return got_error_from_errno("got_ref_to_str");
printf("%s: %s\n", got_ref_get_name(re->ref), refstr);
free(refstr);
}

got_ref_list_free(&refs);
return NULL((void *)0);
5268}

5270static const struct got_error *
5271delete_ref(struct got_repository *repo, const char *refname)
5272{
const struct got_error *err = NULL((void *)0);
struct got_reference *ref;

err = got_ref_open(&ref, repo, refname, 0);
if (err)
return err;

err = got_ref_delete(ref, repo);
got_ref_close(ref);
return err;
5283}

5285static const struct got_error *
5286add_ref(struct got_repository *repo, const char *refname, const char *target)
5287{
const struct got_error *err = NULL((void *)0);
struct got_object_id *id;
struct got_reference *ref = NULL((void *)0);

/*
* Don't let the user create a reference name with a leading '-'.
* While technically a valid reference name, this case is usually
* an unintended typo.
*/
if (refname[0] == '-')
return got_error_path(refname, GOT_ERR_REF_NAME_MINUS113);

err = got_repo_match_object_id_prefix(&id, target, GOT_OBJ_TYPE_ANY0,
   repo);
if (err) {
struct got_reference *target_ref;

if (err->code != GOT_ERR_BAD_OBJ_ID_STR23)
	return err;
err = got_ref_open(&target_ref, repo, target, 0);
if (err)
	return err;
err = got_ref_resolve(&id, repo, target_ref);
got_ref_close(target_ref);
if (err)
	return err;
}

err = got_ref_alloc(&ref, refname, id);
if (err)
goto done;

err = got_ref_write(ref, repo);
5321done:
if (ref)
got_ref_close(ref);
free(id);
return err;
5326}

5328static const struct got_error *
5329add_symref(struct got_repository *repo, const char *refname, const char *target)
5330{
const struct got_error *err = NULL((void *)0);
struct got_reference *ref = NULL((void *)0);
struct got_reference *target_ref = NULL((void *)0);

/*
* Don't let the user create a reference name with a leading '-'.
* While technically a valid reference name, this case is usually
* an unintended typo.
*/
if (refname[0] == '-')
return got_error_path(refname, GOT_ERR_REF_NAME_MINUS113);

err = got_ref_open(&target_ref, repo, target, 0);
if (err)
return err;

err = got_ref_alloc_symref(&ref, refname, target_ref);
if (err)
goto done;

err = got_ref_write(ref, repo);
5352done:
if (target_ref)
got_ref_close(target_ref);
if (ref)
got_ref_close(ref);
return err;
5358}

5360static const struct got_error *
5361cmd_ref(int argc, char *argv[])
5362{
const struct got_error *error = NULL((void *)0);
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, do_list = 0, do_delete = 0;
const char *obj_arg = NULL((void *)0), *symref_target= NULL((void *)0);
char *refname = NULL((void *)0);

while ((ch = getopt(argc, argv, "c:dr:ls:")) != -1) {
switch (ch) {
case 'c':
	obj_arg = optarg;
	break;
case 'd':
	do_delete = 1;
	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 'l':
	do_list = 1;
	break;
case 's':
	symref_target = optarg;
	break;
default:
	usage_ref();
	/* NOTREACHED */
}
}

if (obj_arg && do_list)
option_conflict('c', 'l');
if (obj_arg && do_delete)
option_conflict('c', 'd');
if (obj_arg && symref_target)
option_conflict('c', 's');
if (symref_target && do_delete)
option_conflict('s', 'd');
if (symref_target && do_list)
option_conflict('s', 'l');
if (do_delete && do_list)
option_conflict('d', 'l');

argc -= optind;
argv += optind;

if (do_list) {
if (argc != 0 && argc != 1)
	usage_ref();
if (argc == 1) {
	refname = strdup(argv[0]);
	if (refname == NULL((void *)0)) {
		error = got_error_from_errno("strdup");
		goto done;
	}
}
} else {
if (argc != 1)
	usage_ref();
refname = strdup(argv[0]);
if (refname == NULL((void *)0)) {
	error = got_error_from_errno("strdup");
	goto done;
}
}

if (refname)
got_path_strip_trailing_slashes(refname);

5437#ifndef PROFILE
if (do_list) {
if (pledge("stdio rpath wpath flock proc exec sendfd unveil",
    NULL((void *)0)) == -1)
	err(1, "pledge");
} else {
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
}
5447#endif
cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}

if (repo_path == NULL((void *)0)) {
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
else
	error = NULL((void *)0);
if (worktree) {
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
	if (repo_path == NULL((void *)0))
		error = got_error_from_errno("strdup");
	if (error)
		goto done;
} 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 = apply_unveil(got_repo_get_path(repo), do_list,
   worktree ? got_worktree_get_root_path(worktree) : NULL((void *)0));
if (error)
goto done;

if (do_list)
error = list_refs(repo, refname);
else if (do_delete)
error = delete_ref(repo, refname);
else if (symref_target)
error = add_symref(repo, refname, symref_target);
else {
if (obj_arg == NULL((void *)0))
	usage_ref();
error = add_ref(repo, refname, obj_arg);
}
5496done:
free(refname);
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
free(cwd);
free(repo_path);
return error;
5505}

5507__dead__attribute__((__noreturn__)) static void
5508usage_branch(void)
5509{
fprintf(stderr(&__sF[2]),
   "usage: %s branch [-c commit] [-d] [-r repository] [-l] [-n] "
       "[name]\n", getprogname());
exit(1);
5514}

5516static const struct got_error *
5517list_branch(struct got_repository *repo, struct got_worktree *worktree,
  struct got_reference *ref)
5519{
const struct got_error *err = NULL((void *)0);
const char *refname, *marker = "  ";
char *refstr;

refname = got_ref_get_name(ref);
if (worktree && strcmp(refname,
   got_worktree_get_head_ref_name(worktree)) == 0) {
struct got_object_id *id = NULL((void *)0);

err = got_ref_resolve(&id, repo, ref);
if (err)
	return err;
if (got_object_id_cmp(id,
    got_worktree_get_base_commit_id(worktree)) == 0)
	marker = "* ";
else
	marker = "~ ";
free(id);
}

if (strncmp(refname, "refs/heads/", 11) == 0)
refname += 11;
if (strncmp(refname, "refs/got/worktree/", 18) == 0)
refname += 18;
if (strncmp(refname, "refs/remotes/", 13) == 0)
refname += 13;

refstr = got_ref_to_str(ref);
if (refstr == NULL((void *)0))
return got_error_from_errno("got_ref_to_str");

printf("%s%s: %s\n", marker, refname, refstr);
free(refstr);
return NULL((void *)0);
5554}

5556static const struct got_error *
5557show_current_branch(struct got_repository *repo, struct got_worktree *worktree)
5558{
const char *refname;

if (worktree == NULL((void *)0))
return got_error(GOT_ERR_NOT_WORKTREE60);

refname = got_worktree_get_head_ref_name(worktree);

if (strncmp(refname, "refs/heads/", 11) == 0)
refname += 11;
if (strncmp(refname, "refs/got/worktree/", 18) == 0)
refname += 18;

printf("%s\n", refname);

return NULL((void *)0);
5574}

5576static const struct got_error *
5577list_branches(struct got_repository *repo, struct got_worktree *worktree)
5578{
static const struct got_error *err = NULL((void *)0);
struct got_reflist_head refs;
struct got_reflist_entry *re;
struct got_reference *temp_ref = NULL((void *)0);
int rebase_in_progress, histedit_in_progress;

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

if (worktree) {
err = got_worktree_rebase_in_progress(&rebase_in_progress,
    worktree);
if (err)
	return err;

err = got_worktree_histedit_in_progress(&histedit_in_progress,
    worktree);
if (err)
	return err;

if (rebase_in_progress || histedit_in_progress) {
	err = got_ref_open(&temp_ref, repo,
	    got_worktree_get_head_ref_name(worktree), 0);
	if (err)
		return err;
	list_branch(repo, worktree, temp_ref);
	got_ref_close(temp_ref);
}
}

err = got_ref_list(&refs, repo, "refs/heads",
   got_ref_cmp_by_name, NULL((void *)0));
if (err)
return err;

TAILQ_FOREACH(re, &refs, entry)for((re) = ((&refs)->tqh_first); (re) != ((void *)0); (
re) = ((re)->entry.tqe_next))
list_branch(repo, worktree, re->ref);

got_ref_list_free(&refs);

err = got_ref_list(&refs, repo, "refs/remotes",
   got_ref_cmp_by_name, NULL((void *)0));
if (err)
return err;

TAILQ_FOREACH(re, &refs, entry)for((re) = ((&refs)->tqh_first); (re) != ((void *)0); (
re) = ((re)->entry.tqe_next))
list_branch(repo, worktree, re->ref);

got_ref_list_free(&refs);

return NULL((void *)0);
5629}

5631static const struct got_error *
5632delete_branch(struct got_repository *repo, struct got_worktree *worktree,
  const char *branch_name)
5634{
const struct got_error *err = NULL((void *)0);
struct got_reference *ref = NULL((void *)0);
char *refname;

if (asprintf(&refname, "refs/heads/%s", branch_name) == -1)
return got_error_from_errno("asprintf");

err = got_ref_open(&ref, repo, refname, 0);
if (err)
goto done;

if (worktree &&
   strcmp(got_worktree_get_head_ref_name(worktree),
   got_ref_get_name(ref)) == 0) {
err = got_error_msg(GOT_ERR_SAME_BRANCH79,
    "will not delete this work tree's current branch");
goto done;
}

err = got_ref_delete(ref, repo);
5655done:
if (ref)
got_ref_close(ref);
free(refname);
return err;
5660}

5662static const struct got_error *
5663add_branch(struct got_repository *repo, const char *branch_name,
  struct got_object_id *base_commit_id)
5665{
const struct got_error *err = NULL((void *)0);
struct got_reference *ref = NULL((void *)0);
char *base_refname = NULL((void *)0), *refname = NULL((void *)0);

/*
* Don't let the user create a branch name with a leading '-'.
* While technically a valid reference name, this case is usually
* an unintended typo.
*/
if (branch_name[0] == '-')
return got_error_path(branch_name, GOT_ERR_REF_NAME_MINUS113);

if (asprintf(&refname, "refs/heads/%s", branch_name) == -1) {
err = got_error_from_errno("asprintf");
goto done;
}

err = got_ref_open(&ref, repo, refname, 0);
if (err == NULL((void *)0)) {
err = got_error(GOT_ERR_BRANCH_EXISTS83);
goto done;
} else if (err->code != GOT_ERR_NOT_REF5)
goto done;

err = got_ref_alloc(&ref, refname, base_commit_id);
if (err)
goto done;

err = got_ref_write(ref, repo);
5695done:
if (ref)
got_ref_close(ref);
free(base_refname);
free(refname);
return err;
5701}

5703static const struct got_error *
5704cmd_branch(int argc, char *argv[])
5705{
const struct got_error *error = NULL((void *)0);
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, do_list = 0, do_show = 0, do_update = 1;
const char *delref = NULL((void *)0), *commit_id_arg = NULL((void *)0);
struct got_reference *ref = NULL((void *)0);
struct got_pathlist_head paths;
struct got_pathlist_entry *pe;
struct got_object_id *commit_id = NULL((void *)0);
char *commit_id_str = NULL((void *)0);

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

while ((ch = getopt(argc, argv, "c:d:r:ln")) != -1) {
switch (ch) {
case 'c':
	commit_id_arg = optarg;
	break;
case 'd':
	delref = optarg;
	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 'l':
	do_list = 1;
	break;
case 'n':
	do_update = 0;
	break;
default:
	usage_branch();
	/* NOTREACHED */
}
}

if (do_list && delref)
option_conflict('l', 'd');

argc -= optind;
argv += optind;

if (!do_list && !delref && argc == 0)
do_show = 1;

if ((do_list || delref || do_show) && commit_id_arg != NULL((void *)0))
errx(1, "-c option can only be used when creating a branch");

if (do_list || delref) {
if (argc > 0)
	usage_branch();
} else if (!do_show && argc != 1)
usage_branch();

5765#ifndef PROFILE
if (do_list || do_show) {
if (pledge("stdio rpath wpath flock proc exec sendfd unveil",
    NULL((void *)0)) == -1)
	err(1, "pledge");
} else {
if (pledge("stdio rpath wpath cpath fattr flock proc exec "
    "sendfd unveil", NULL((void *)0)) == -1)
	err(1, "pledge");
}
5775#endif
cwd = getcwd(NULL((void *)0), 0);
if (cwd == NULL((void *)0)) {
error = got_error_from_errno("getcwd");
goto done;
}

if (repo_path == NULL((void *)0)) {
error = got_worktree_open(&worktree, cwd);
if (error && error->code != GOT_ERR_NOT_WORKTREE60)
	goto done;
else
	error = NULL((void *)0);
if (worktree) {
	repo_path =
	    strdup(got_worktree_get_repo_path(worktree));
	if (repo_path == NULL((void *)0))
		error = got_error_from_errno("strdup");
	if (error)
		goto done;
} 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 = apply_unveil(got_repo_get_path(repo), do_list,
   worktree ? got_worktree_get_root_path(worktree) : NULL((void *)0));
if (error)
goto done;

if (do_show)
error = show_current_branch(repo, worktree);
else if (do_list)
error = list_branches(repo, worktree);
else if (delref)
error = delete_branch(repo, worktree, delref);
else {
struct got_reflist_head refs;
TAILQ_INIT(&refs)do { (&refs)->tqh_first = ((void *)0); (&refs)->
tqh_last = &(&refs)->tqh_first; } while (0);
error = got_ref_list(&refs, repo, NULL((void *)0), got_ref_cmp_by_name,
    NULL((void *)0));
if (error)
	goto done;
if (commit_id_arg == NULL((void *)0))
	commit_id_arg = worktree ?
	    got_worktree_get_head_ref_name(worktree) :
	    GOT_REF_HEAD"HEAD";
error = got_repo_match_object_id(&commit_id, NULL((void *)0),
    commit_id_arg, GOT_OBJ_TYPE_COMMIT1, &refs, repo);
got_ref_list_free(&refs);
if (error)
	goto done;
error = add_branch(repo, argv[0], commit_id);
if (error)
	goto done;
if (worktree && do_update) {
	struct got_update_progress_arg upa;
	char *branch_refname = NULL((void *)0);

	error = got_object_id_str(&commit_id_str, commit_id);
	if (error)
		goto done;
	error = get_worktree_paths_from_argv(&paths, 0, NULL((void *)0),
	    worktree);
	if (error)
		goto done;
	if (asprintf(&branch_refname, "refs/heads/%s", argv[0])
	    == -1) {
		error = got_error_from_errno("asprintf");
		goto done;
	}
	error = got_ref_open(&ref, repo, branch_refname, 0);
	free(branch_refname);
	if (error)
		goto done;
	error = switch_head_ref(ref, commit_id, worktree,
	    repo);
	if (error)
		goto done;
	error = got_worktree_set_base_commit_id(worktree, repo,
	    commit_id);
	if (error)
		goto done;
	memset(&upa, 0, sizeof(upa));
	error = got_worktree_checkout_files(worktree, &paths,
	    repo, update_progress, &upa, check_cancelled,
	    NULL((void *)0));
	if (error)
		goto done;
	if (upa.did_something)
		printf("Updated to commit %s\n", commit_id_str);
	print_update_progress_stats(&upa);
}
}
5877done:
if (ref)
got_ref_close(ref);
if (repo)
got_repo_close(repo);
if (worktree)
got_worktree_close(worktree);
free(cwd);
free(repo_path);
free(commit_id);
free(commit_id_str);
TAILQ_FOREACH(pe, &paths, entry)for((pe) = ((&paths)->tqh_first); (pe) != ((void *)0);
 (pe) = ((pe)->entry.tqe_next))
free((char *)pe->path);
got_pathlist_free(&paths);
return error;
5892}


5895__dead__attribute__((__noreturn__)) static void
5896usage_tag(void)
5897{
fprintf(stderr(&__sF[2]),
   "usage: %s tag [-c commit] [-r repository] [-l] "
       "[-m message] name\n", getprogname());
exit(1);
5902}

5904#if 0
5905static const struct got_error *
5906sort_tags(struct got_reflist_head *sorted, struct got_reflist_head *tags)
5907{
const struct got_error *err = NULL((void *)0);
struct got_reflist_entry *re, *se, *new;
struct got_object_id *re_id, *se_id;
struct got_tag_object *re_tag, *se_tag;
time_t re_time, se_time;

SIMPLEQ_FOREACH(re, tags, entry)for((re) = ((tags)->sqh_first); (re) != ((void *)0); (re) =
 ((re)->entry.sqe_next)) {
se = SIMPLEQ_FIRST(sorted)((sorted)->sqh_first);
if (se == NULL((void *)0)) {
	err = got_reflist_entry_dup(&new, re);
	if (err)
		return err;
	SIMPLEQ_INSERT_HEAD(sorted, new, entry)do { if (((new)->entry.sqe_next = (sorted)->sqh_first) ==
 ((void *)0)) (sorted)->sqh_last = &(new)->entry.sqe_next
; (sorted)->sqh_first = (new); } while (0);
	continue;
} else {
	err = got_ref_resolve(&re_id, repo, re->ref);
	if (err)
		break;
	err = got_object_open_as_tag(&re_tag, repo, re_id);
	free(re_id);
	if (err)
		break;
	re_time = got_object_tag_get_tagger_time(re_tag);
	got_object_tag_close(re_tag);
}

while (se) {
	err = got_ref_resolve(&se_id, repo, re->ref);
	if (err)
		break;
	err = got_object_open_as_tag(&se_tag, repo, se_id);
	free(se_id);
	if (err)
		break;
	se_time = got_object_tag_get_tagger_time(se_tag);
	got_object_tag_close(se_tag);

	if (se_time > re_time) {
		err = got_reflist_entry_dup(&new, re);
		if (err)
			return err;
		SIMPLEQ_INSERT_AFTER(sorted, se, new, entry)do { if (((new)->entry.sqe_next = (se)->entry.sqe_next)
 == ((void *)0)) (sorted)->sqh_last = &(new)->entry
.sqe_next; (se)->entry.sqe_next = (new); } while (0);
		break;
	}
	se = SIMPLEQ_NEXT(se, entry)((se)->entry.sqe_next);
	continue;
}
}
5956done:
return err;
5958}
5959#endif

5961static const struct got_error *
5962list_tags(struct got_repository *repo, struct got_worktree *worktree)
5963{
static const struct got_error *err = NULL((void *)0);
struct got_reflist_head refs;
struct got_reflist_entry *re;

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

err = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_tags, repo);
if (err)
return err;

TAILQ_FOREACH(re, &refs, entry)for((re) = ((&refs)->tqh_first); (re) != ((void *)0); (
re) = ((re)->entry.tqe_next)) {
const char *refname;
char *refstr, *tagmsg0, *tagmsg, *line, *id_str, *datestr;
char datebuf[26];
const char *tagger;
time_t tagger_time;
struct got_object_id *id;
struct got_tag_object *tag;
struct got_commit_object *commit = NULL((void *)0);

refname = got_ref_get_name(re->ref);
if (strncmp(refname, "refs/tags/", 10) != 0)
	continue;
refname += 10;
refstr = got_ref_to_str(re->ref);
if (refstr == NULL((void *)0)) {
	err = got_error_from_errno("got_ref_to_str");
	break;
}
printf("%stag %s %s\n", GOT_COMMIT_SEP_STR"-----------------------------------------------\n", refname, refstr);
free(refstr);

err = got_ref_resolve(&id, repo, re->ref);
if (err)
	break;
err = got_object_open_as_tag(&tag, repo, id);
if (err) {
	if (err->code != GOT_ERR_OBJ_TYPE11) {
		free(id);
		break;
	}
	/* "lightweight" tag */
	err = got_object_open_as_commit(&commit, repo, id);
	if (err) {
		free(id);
		break;
	}
	tagger = got_object_commit_get_committer(commit);
	tagger_time =
	    got_object_commit_get_committer_time(commit);
	err = got_object_id_str(&id_str, id);
	free(id);
	if (err)
		break;
} else {
	free(id);
	tagger = got_object_tag_get_tagger(tag);
	tagger_time = got_object_tag_get_tagger_time(tag);
	err = got_object_id_str(&id_str,
	    got_object_tag_get_object_id(tag));
	if (err)
		break;
}
printf("from: %s\n", tagger);
datestr = get_datestr(&tagger_time, datebuf);
if (datestr)
	printf("date: %s UTC\n", datestr);
if (commit)
	printf("object: %s %s\n", GOT_OBJ_LABEL_COMMIT"commit", id_str);
else {
	switch (got_object_tag_get_object_type(tag)) {
	case GOT_OBJ_TYPE_BLOB3:
		printf("object: %s %s\n", GOT_OBJ_LABEL_BLOB"blob",
		    id_str);
		break;
	case GOT_OBJ_TYPE_TREE2:
		printf("object: %s %s\n", GOT_OBJ_LABEL_TREE"tree",
		    id_str);
		break;
	case GOT_OBJ_TYPE_COMMIT1:
		printf("object: %s %s\n", GOT_OBJ_LABEL_COMMIT"commit",
		    id_str);
		break;
	case GOT_OBJ_TYPE_TAG4:
		printf("object: %s %s\n", GOT_OBJ_LABEL_TAG"tag",
		    id_str);
		break;
	default:
		break;
	}
}
free(id_str);
if (commit) {
	err = got_object_commit_get_logmsg(&tagmsg0, commit);
	if (err)
		break;
	got_object_commit_close(commit);
} else {
	tagmsg0 = strdup(got_object_tag_get_message(tag));
	got_object_tag_close(tag);
	if (tagmsg0 == NULL((void *)0)) {
		err = got_error_from_errno("strdup");
		break;
	}
}

tagmsg = tagmsg0;
do {
	line = strsep(&tagmsg, "\n");
	if (line)
		printf(" %s\n", line);
} while (line);
free(tagmsg0);
}

got_ref_list_free(&refs);
return NULL((void *)0);
6081}

6083static const st