diff options
Diffstat (limited to 'git.c')
-rw-r--r-- | git.c | 97 |
1 files changed, 37 insertions, 60 deletions
@@ -15,7 +15,6 @@ const char git_more_info_string[] = "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; static const char *env_names[] = { @@ -247,20 +246,16 @@ static int handle_alias(int *argcp, const char ***argv) alias_string = alias_lookup(alias_command); if (alias_string) { if (alias_string[0] == '!') { - const char **alias_argv; - int argc = *argcp, i; + struct child_process child = CHILD_PROCESS_INIT; commit_pager_choice(); restore_env(1); - /* build alias_argv */ - alias_argv = xmalloc(sizeof(*alias_argv) * (argc + 1)); - alias_argv[0] = alias_string + 1; - for (i = 1; i < argc; ++i) - alias_argv[i] = (*argv)[i]; - alias_argv[argc] = NULL; + child.use_shell = 1; + argv_array_push(&child.args, alias_string + 1); + argv_array_pushv(&child.args, (*argv) + 1); - ret = run_command_v_opt(alias_argv, RUN_USING_SHELL); + ret = run_command(&child); if (ret >= 0) /* normal exit */ exit(ret); @@ -449,7 +444,7 @@ static struct cmd_struct commands[] = { { "pack-objects", cmd_pack_objects, RUN_SETUP }, { "pack-redundant", cmd_pack_redundant, RUN_SETUP }, { "pack-refs", cmd_pack_refs, RUN_SETUP }, - { "patch-id", cmd_patch_id }, + { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY }, { "pickaxe", cmd_blame, RUN_SETUP }, { "prune", cmd_prune, RUN_SETUP }, { "prune-packed", cmd_prune_packed, RUN_SETUP }, @@ -513,31 +508,48 @@ int is_builtin(const char *s) return !!get_builtin(s); } +#ifdef STRIP_EXTENSION +static void strip_extension(const char **argv) +{ + size_t len; + + if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) + argv[0] = xmemdupz(argv[0], len); +} +#else +#define strip_extension(cmd) +#endif + static void handle_builtin(int argc, const char **argv) { - const char *cmd = argv[0]; - int i; - static const char ext[] = STRIP_EXTENSION; + struct argv_array args = ARGV_ARRAY_INIT; + const char *cmd; struct cmd_struct *builtin; - if (sizeof(ext) > 1) { - i = strlen(argv[0]) - strlen(ext); - if (i > 0 && !strcmp(argv[0] + i, ext)) { - char *argv0 = xstrdup(argv[0]); - argv[0] = cmd = argv0; - argv0[i] = '\0'; - } - } + strip_extension(argv); + cmd = argv[0]; - /* Turn "git cmd --help" into "git help cmd" */ + /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ if (argc > 1 && !strcmp(argv[1], "--help")) { + int i; + argv[1] = argv[0]; argv[0] = cmd = "help"; + + for (i = 0; i < argc; i++) { + argv_array_push(&args, argv[i]); + if (!i) + argv_array_push(&args, "--exclude-guides"); + } + + argc++; + argv = args.argv; } builtin = get_builtin(cmd); if (builtin) exit(run_builtin(builtin, argc, argv)); + argv_array_clear(&args); } static void execv_dashed_external(const char **argv) @@ -610,50 +622,15 @@ static int run_argv(int *argcp, const char ***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) +int cmd_main(int argc, const char **argv) { - 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; - - cmd = git_extract_argv0_path(argv[0]); + cmd = argv[0]; if (!cmd) cmd = "git-help"; - /* - * Always open file descriptors 0/1/2 to avoid clobbering files - * in die(). It also avoids messing up when the pipes are dup'ed - * onto stdin/stdout/stderr in the child processes we spawn. - */ - sanitize_stdfds(); - - restore_sigpipe_to_default(); - - git_setup_gettext(); - trace_command_performance(argv); /* |