#include "builtin.h"
-#include "cache.h"
#include "exec_cmd.h"
#include "help.h"
-#include "quote.h"
#include "run-command.h"
-#include "commit.h"
const char git_usage_string[] =
"git [--version] [--help] [-C <path>] [-c name=value]\n"
" [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
- " [-p|--paginate|--no-pager] [--no-replace-objects] [--bare]\n"
+ " [-p | --paginate | --no-pager] [--no-replace-objects] [--bare]\n"
" [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
" <command> [<args>]";
const char git_more_info_string[] =
- N_("'git help -a' and 'git help -g' lists available subcommands and some\n"
+ N_("'git help -a' and 'git help -g' list available subcommands and some\n"
"concept guides. See 'git help <command>' or 'git help <concept>'\n"
"to read about a specific subcommand or concept.");
static struct startup_info git_startup_info;
static int use_pager = -1;
-static char orig_cwd[PATH_MAX];
+static char *orig_cwd;
static const char *env_names[] = {
GIT_DIR_ENVIRONMENT,
GIT_WORK_TREE_ENVIRONMENT,
if (saved_environment)
return;
saved_environment = 1;
- if (!getcwd(orig_cwd, sizeof(orig_cwd)))
- die_errno("cannot getcwd");
+ orig_cwd = xgetcwd();
for (i = 0; i < ARRAY_SIZE(env_names); i++) {
orig_env[i] = getenv(env_names[i]);
if (orig_env[i])
static void restore_env(void)
{
int i;
- if (*orig_cwd && chdir(orig_cwd))
+ if (orig_cwd && chdir(orig_cwd))
die_errno("could not move to %s", orig_cwd);
+ free(orig_cwd);
for (i = 0; i < ARRAY_SIZE(env_names); i++) {
if (orig_env[i])
setenv(env_names[i], orig_env[i], 1);
if (envchanged)
*envchanged = 1;
} else if (!strcmp(cmd, "--bare")) {
- static char git_dir[PATH_MAX+1];
+ char *cwd = xgetcwd();
is_bare_repository_cfg = 1;
- setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0);
+ setenv(GIT_DIR_ENVIRONMENT, cwd, 0);
+ free(cwd);
setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
if (envchanged)
*envchanged = 1;
fprintf(stderr, "No directory given for -C.\n" );
usage(git_usage_string);
}
- if (chdir((*argv)[1]))
- die_errno("Cannot change to '%s'", (*argv)[1]);
- if (envchanged)
- *envchanged = 1;
+ if ((*argv)[1][0]) {
+ if (chdir((*argv)[1]))
+ die_errno("Cannot change to '%s'", (*argv)[1]);
+ if (envchanged)
+ *envchanged = 1;
+ }
(*argv)++;
(*argc)--;
} else {
"trace: alias expansion: %s =>",
alias_command);
- new_argv = xrealloc(new_argv, sizeof(char *) *
- (count + *argcp));
+ REALLOC_ARRAY(new_argv, count + *argcp);
/* insert after command name */
memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp);
{ "index-pack", cmd_index_pack, RUN_SETUP_GENTLY },
{ "init", cmd_init_db, NO_SETUP },
{ "init-db", cmd_init_db, NO_SETUP },
+ { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP },
{ "log", cmd_log, RUN_SETUP },
{ "ls-files", cmd_ls_files, RUN_SETUP },
{ "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
{ "write-tree", cmd_write_tree, RUN_SETUP },
};
-int is_builtin(const char *s)
+static struct cmd_struct *get_builtin(const char *s)
{
int i;
for (i = 0; i < ARRAY_SIZE(commands); i++) {
- struct cmd_struct *p = commands+i;
+ struct cmd_struct *p = commands + i;
if (!strcmp(s, p->cmd))
- return 1;
+ return p;
}
- return 0;
+ return NULL;
+}
+
+int is_builtin(const char *s)
+{
+ return !!get_builtin(s);
}
static void handle_builtin(int argc, const char **argv)
const char *cmd = argv[0];
int i;
static const char ext[] = STRIP_EXTENSION;
+ struct cmd_struct *builtin;
if (sizeof(ext) > 1) {
i = strlen(argv[0]) - strlen(ext);
argv[0] = cmd = "help";
}
- for (i = 0; i < ARRAY_SIZE(commands); i++) {
- struct cmd_struct *p = commands+i;
- if (strcmp(p->cmd, cmd))
- continue;
- if (saved_environment && (p->option & NO_SETUP)) {
+ builtin = get_builtin(cmd);
+ if (builtin) {
+ if (saved_environment && (builtin->option & NO_SETUP))
restore_env();
- break;
- }
- exit(run_builtin(p, argc, argv));
+ else
+ exit(run_builtin(builtin, argc, argv));
}
}
return done_alias;
}
+/*
+ * Many parts of Git have subprograms communicate via pipe, expect the
+ * upstream of a pipe to die with SIGPIPE when the downstream of a
+ * pipe does not need to read all that is written. Some third-party
+ * programs that ignore or block SIGPIPE for their own reason forget
+ * to restore SIGPIPE handling to the default before spawning Git and
+ * break this carefully orchestrated machinery.
+ *
+ * Restore the way SIGPIPE is handled to default, which is what we
+ * expect.
+ */
+static void restore_sigpipe_to_default(void)
+{
+ sigset_t unblock;
+
+ sigemptyset(&unblock);
+ sigaddset(&unblock, SIGPIPE);
+ sigprocmask(SIG_UNBLOCK, &unblock, NULL);
+ signal(SIGPIPE, SIG_DFL);
+}
int main(int argc, char **av)
{
const char **argv = (const char **) av;
const char *cmd;
+ int done_help = 0;
startup_info = &git_startup_info;
*/
sanitize_stdfds();
+ restore_sigpipe_to_default();
+
git_setup_gettext();
trace_command_performance(argv);
setup_path();
while (1) {
- static int done_help = 0;
- static int was_alias = 0;
- was_alias = run_argv(&argc, &argv);
+ int was_alias = run_argv(&argc, &argv);
if (errno != ENOENT)
break;
if (was_alias) {