5 #include "run-command.h"
8 #define RUN_SETUP (1<<0)
9 #define RUN_SETUP_GENTLY (1<<1)
10 #define USE_PAGER (1<<2)
12 * require working tree to be present -- anything uses this needs
13 * RUN_SETUP for reading from the configuration file.
15 #define NEED_WORK_TREE (1<<3)
16 #define SUPPORT_SUPER_PREFIX (1<<4)
17 #define DELAY_PAGER_CONFIG (1<<5)
18 #define NO_PARSEOPT (1<<6) /* parse-options is not used */
22 int (*fn
)(int, const char **, const char *);
26 const char git_usage_string
[] =
27 N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n"
28 " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
29 " [-p | --paginate | --no-pager] [--no-replace-objects] [--bare]\n"
30 " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
31 " <command> [<args>]");
33 const char git_more_info_string
[] =
34 N_("'git help -a' and 'git help -g' list available subcommands and some\n"
35 "concept guides. See 'git help <command>' or 'git help <concept>'\n"
36 "to read about a specific subcommand or concept.");
38 static int use_pager
= -1;
40 static void list_builtins(struct string_list
*list
, unsigned int exclude_option
);
42 static void exclude_helpers_from_list(struct string_list
*list
)
46 while (i
< list
->nr
) {
47 if (strstr(list
->items
[i
].string
, "--"))
48 unsorted_string_list_delete_item(list
, i
, 0);
54 static int match_token(const char *spec
, int len
, const char *token
)
56 int token_len
= strlen(token
);
58 return len
== token_len
&& !strncmp(spec
, token
, token_len
);
61 static int list_cmds(const char *spec
)
63 struct string_list list
= STRING_LIST_INIT_DUP
;
67 const char *sep
= strchrnul(spec
, ',');
70 if (match_token(spec
, len
, "builtins"))
71 list_builtins(&list
, 0);
72 else if (match_token(spec
, len
, "main"))
73 list_all_main_cmds(&list
);
74 else if (match_token(spec
, len
, "others"))
75 list_all_other_cmds(&list
);
76 else if (match_token(spec
, len
, "nohelpers"))
77 exclude_helpers_from_list(&list
);
78 else if (match_token(spec
, len
, "alias"))
80 else if (len
> 5 && !strncmp(spec
, "list-", 5)) {
81 struct strbuf sb
= STRBUF_INIT
;
83 strbuf_add(&sb
, spec
+ 5, len
- 5);
84 list_cmds_by_category(&list
, sb
.buf
);
88 die(_("unsupported command listing type '%s'"), spec
);
93 for (i
= 0; i
< list
.nr
; i
++)
94 puts(list
.items
[i
].string
);
95 string_list_clear(&list
, 0);
99 static void commit_pager_choice(void) {
102 setenv("GIT_PAGER", "cat", 1);
112 void setup_auto_pager(const char *cmd
, int def
)
114 if (use_pager
!= -1 || pager_in_use())
116 use_pager
= check_pager_config(cmd
);
119 commit_pager_choice();
122 static int handle_options(const char ***argv
, int *argc
, int *envchanged
)
124 const char **orig_argv
= *argv
;
127 const char *cmd
= (*argv
)[0];
132 * For legacy reasons, the "version" and "help"
133 * commands can be written with "--" prepended
134 * to make them look like flags.
136 if (!strcmp(cmd
, "--help") || !strcmp(cmd
, "--version"))
140 * Check remaining flags.
142 if (skip_prefix(cmd
, "--exec-path", &cmd
)) {
144 git_set_argv_exec_path(cmd
+ 1);
146 puts(git_exec_path());
149 } else if (!strcmp(cmd
, "--html-path")) {
150 puts(system_path(GIT_HTML_PATH
));
152 } else if (!strcmp(cmd
, "--man-path")) {
153 puts(system_path(GIT_MAN_PATH
));
155 } else if (!strcmp(cmd
, "--info-path")) {
156 puts(system_path(GIT_INFO_PATH
));
158 } else if (!strcmp(cmd
, "-p") || !strcmp(cmd
, "--paginate")) {
160 } else if (!strcmp(cmd
, "--no-pager")) {
164 } else if (!strcmp(cmd
, "--no-replace-objects")) {
165 check_replace_refs
= 0;
166 setenv(NO_REPLACE_OBJECTS_ENVIRONMENT
, "1", 1);
169 } else if (!strcmp(cmd
, "--git-dir")) {
171 fprintf(stderr
, _("no directory given for --git-dir\n" ));
172 usage(git_usage_string
);
174 setenv(GIT_DIR_ENVIRONMENT
, (*argv
)[1], 1);
179 } else if (skip_prefix(cmd
, "--git-dir=", &cmd
)) {
180 setenv(GIT_DIR_ENVIRONMENT
, cmd
, 1);
183 } else if (!strcmp(cmd
, "--namespace")) {
185 fprintf(stderr
, _("no namespace given for --namespace\n" ));
186 usage(git_usage_string
);
188 setenv(GIT_NAMESPACE_ENVIRONMENT
, (*argv
)[1], 1);
193 } else if (skip_prefix(cmd
, "--namespace=", &cmd
)) {
194 setenv(GIT_NAMESPACE_ENVIRONMENT
, cmd
, 1);
197 } else if (!strcmp(cmd
, "--work-tree")) {
199 fprintf(stderr
, _("no directory given for --work-tree\n" ));
200 usage(git_usage_string
);
202 setenv(GIT_WORK_TREE_ENVIRONMENT
, (*argv
)[1], 1);
207 } else if (skip_prefix(cmd
, "--work-tree=", &cmd
)) {
208 setenv(GIT_WORK_TREE_ENVIRONMENT
, cmd
, 1);
211 } else if (!strcmp(cmd
, "--super-prefix")) {
213 fprintf(stderr
, _("no prefix given for --super-prefix\n" ));
214 usage(git_usage_string
);
216 setenv(GIT_SUPER_PREFIX_ENVIRONMENT
, (*argv
)[1], 1);
221 } else if (skip_prefix(cmd
, "--super-prefix=", &cmd
)) {
222 setenv(GIT_SUPER_PREFIX_ENVIRONMENT
, cmd
, 1);
225 } else if (!strcmp(cmd
, "--bare")) {
226 char *cwd
= xgetcwd();
227 is_bare_repository_cfg
= 1;
228 setenv(GIT_DIR_ENVIRONMENT
, cwd
, 0);
230 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT
, "0", 1);
233 } else if (!strcmp(cmd
, "-c")) {
235 fprintf(stderr
, _("-c expects a configuration string\n" ));
236 usage(git_usage_string
);
238 git_config_push_parameter((*argv
)[1]);
241 } else if (!strcmp(cmd
, "--literal-pathspecs")) {
242 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT
, "1", 1);
245 } else if (!strcmp(cmd
, "--no-literal-pathspecs")) {
246 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT
, "0", 1);
249 } else if (!strcmp(cmd
, "--glob-pathspecs")) {
250 setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT
, "1", 1);
253 } else if (!strcmp(cmd
, "--noglob-pathspecs")) {
254 setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT
, "1", 1);
257 } else if (!strcmp(cmd
, "--icase-pathspecs")) {
258 setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT
, "1", 1);
261 } else if (!strcmp(cmd
, "--no-optional-locks")) {
262 setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT
, "0", 1);
265 } else if (!strcmp(cmd
, "--shallow-file")) {
268 set_alternate_shallow_file((*argv
)[0], 1);
271 } else if (!strcmp(cmd
, "-C")) {
273 fprintf(stderr
, _("no directory given for -C\n" ));
274 usage(git_usage_string
);
277 if (chdir((*argv
)[1]))
278 die_errno("cannot change to '%s'", (*argv
)[1]);
284 } else if (skip_prefix(cmd
, "--list-cmds=", &cmd
)) {
285 if (!strcmp(cmd
, "parseopt")) {
286 struct string_list list
= STRING_LIST_INIT_DUP
;
289 list_builtins(&list
, NO_PARSEOPT
);
290 for (i
= 0; i
< list
.nr
; i
++)
291 printf("%s ", list
.items
[i
].string
);
292 string_list_clear(&list
, 0);
295 exit(list_cmds(cmd
));
298 fprintf(stderr
, _("unknown option: %s\n"), cmd
);
299 usage(git_usage_string
);
305 return (*argv
) - orig_argv
;
308 static int handle_alias(int *argcp
, const char ***argv
)
310 int envchanged
= 0, ret
= 0, saved_errno
= errno
;
311 int count
, option_count
;
312 const char **new_argv
;
313 const char *alias_command
;
316 alias_command
= (*argv
)[0];
317 alias_string
= alias_lookup(alias_command
);
319 if (alias_string
[0] == '!') {
320 struct child_process child
= CHILD_PROCESS_INIT
;
323 /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */
324 setup_git_directory_gently(&nongit_ok
);
326 commit_pager_choice();
329 argv_array_push(&child
.args
, alias_string
+ 1);
330 argv_array_pushv(&child
.args
, (*argv
) + 1);
332 ret
= run_command(&child
);
333 if (ret
>= 0) /* normal exit */
336 die_errno("while expanding alias '%s': '%s'",
337 alias_command
, alias_string
+ 1);
339 count
= split_cmdline(alias_string
, &new_argv
);
341 die("Bad alias.%s string: %s", alias_command
,
342 split_cmdline_strerror(count
));
343 option_count
= handle_options(&new_argv
, &count
, &envchanged
);
345 die("alias '%s' changes environment variables.\n"
346 "You can use '!git' in the alias to do this",
348 memmove(new_argv
- option_count
, new_argv
,
349 count
* sizeof(char *));
350 new_argv
-= option_count
;
353 die("empty alias for %s", alias_command
);
355 if (!strcmp(alias_command
, new_argv
[0]))
356 die("recursive alias: %s", alias_command
);
358 trace_argv_printf(new_argv
,
359 "trace: alias expansion: %s =>",
362 REALLOC_ARRAY(new_argv
, count
+ *argcp
);
363 /* insert after command name */
364 memcpy(new_argv
+ count
, *argv
+ 1, sizeof(char *) * *argcp
);
377 static int run_builtin(struct cmd_struct
*p
, int argc
, const char **argv
)
384 help
= argc
== 2 && !strcmp(argv
[1], "-h");
386 if (p
->option
& RUN_SETUP
)
387 prefix
= setup_git_directory();
388 else if (p
->option
& RUN_SETUP_GENTLY
) {
390 prefix
= setup_git_directory_gently(&nongit_ok
);
393 if (use_pager
== -1 && p
->option
& (RUN_SETUP
| RUN_SETUP_GENTLY
) &&
394 !(p
->option
& DELAY_PAGER_CONFIG
))
395 use_pager
= check_pager_config(p
->cmd
);
396 if (use_pager
== -1 && p
->option
& USE_PAGER
)
399 if ((p
->option
& (RUN_SETUP
| RUN_SETUP_GENTLY
)) &&
400 startup_info
->have_repository
) /* get_git_dir() may set up repo, avoid that */
401 trace_repo_setup(prefix
);
403 commit_pager_choice();
405 if (!help
&& get_super_prefix()) {
406 if (!(p
->option
& SUPPORT_SUPER_PREFIX
))
407 die("%s doesn't support --super-prefix", p
->cmd
);
410 if (!help
&& p
->option
& NEED_WORK_TREE
)
413 trace_argv_printf(argv
, "trace: built-in: git");
415 status
= p
->fn(argc
, argv
, prefix
);
419 /* Somebody closed stdout? */
420 if (fstat(fileno(stdout
), &st
))
422 /* Ignore write errors for pipes and sockets.. */
423 if (S_ISFIFO(st
.st_mode
) || S_ISSOCK(st
.st_mode
))
426 /* Check for ENOSPC and EIO errors.. */
428 die_errno("write failure on standard output");
430 die("unknown write failure on standard output");
432 die_errno("close failed on standard output");
436 static struct cmd_struct commands
[] = {
437 { "add", cmd_add
, RUN_SETUP
| NEED_WORK_TREE
},
438 { "am", cmd_am
, RUN_SETUP
| NEED_WORK_TREE
},
439 { "annotate", cmd_annotate
, RUN_SETUP
| NO_PARSEOPT
},
440 { "apply", cmd_apply
, RUN_SETUP_GENTLY
},
441 { "archive", cmd_archive
, RUN_SETUP_GENTLY
},
442 { "bisect--helper", cmd_bisect__helper
, RUN_SETUP
},
443 { "blame", cmd_blame
, RUN_SETUP
},
444 { "branch", cmd_branch
, RUN_SETUP
| DELAY_PAGER_CONFIG
},
445 { "bundle", cmd_bundle
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
446 { "cat-file", cmd_cat_file
, RUN_SETUP
},
447 { "check-attr", cmd_check_attr
, RUN_SETUP
},
448 { "check-ignore", cmd_check_ignore
, RUN_SETUP
| NEED_WORK_TREE
},
449 { "check-mailmap", cmd_check_mailmap
, RUN_SETUP
},
450 { "check-ref-format", cmd_check_ref_format
, NO_PARSEOPT
},
451 { "checkout", cmd_checkout
, RUN_SETUP
| NEED_WORK_TREE
},
452 { "checkout-index", cmd_checkout_index
,
453 RUN_SETUP
| NEED_WORK_TREE
},
454 { "cherry", cmd_cherry
, RUN_SETUP
},
455 { "cherry-pick", cmd_cherry_pick
, RUN_SETUP
| NEED_WORK_TREE
},
456 { "clean", cmd_clean
, RUN_SETUP
| NEED_WORK_TREE
},
457 { "clone", cmd_clone
},
458 { "column", cmd_column
, RUN_SETUP_GENTLY
},
459 { "commit", cmd_commit
, RUN_SETUP
| NEED_WORK_TREE
},
460 { "commit-tree", cmd_commit_tree
, RUN_SETUP
| NO_PARSEOPT
},
461 { "config", cmd_config
, RUN_SETUP_GENTLY
| DELAY_PAGER_CONFIG
},
462 { "count-objects", cmd_count_objects
, RUN_SETUP
},
463 { "credential", cmd_credential
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
464 { "describe", cmd_describe
, RUN_SETUP
},
465 { "diff", cmd_diff
, NO_PARSEOPT
},
466 { "diff-files", cmd_diff_files
, RUN_SETUP
| NEED_WORK_TREE
| NO_PARSEOPT
},
467 { "diff-index", cmd_diff_index
, RUN_SETUP
| NO_PARSEOPT
},
468 { "diff-tree", cmd_diff_tree
, RUN_SETUP
| NO_PARSEOPT
},
469 { "difftool", cmd_difftool
, RUN_SETUP
| NEED_WORK_TREE
},
470 { "fast-export", cmd_fast_export
, RUN_SETUP
},
471 { "fetch", cmd_fetch
, RUN_SETUP
},
472 { "fetch-pack", cmd_fetch_pack
, RUN_SETUP
| NO_PARSEOPT
},
473 { "fmt-merge-msg", cmd_fmt_merge_msg
, RUN_SETUP
},
474 { "for-each-ref", cmd_for_each_ref
, RUN_SETUP
},
475 { "format-patch", cmd_format_patch
, RUN_SETUP
},
476 { "fsck", cmd_fsck
, RUN_SETUP
},
477 { "fsck-objects", cmd_fsck
, RUN_SETUP
},
478 { "gc", cmd_gc
, RUN_SETUP
},
479 { "get-tar-commit-id", cmd_get_tar_commit_id
, NO_PARSEOPT
},
480 { "grep", cmd_grep
, RUN_SETUP_GENTLY
},
481 { "hash-object", cmd_hash_object
},
482 { "help", cmd_help
},
483 { "index-pack", cmd_index_pack
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
484 { "init", cmd_init_db
},
485 { "init-db", cmd_init_db
},
486 { "interpret-trailers", cmd_interpret_trailers
, RUN_SETUP_GENTLY
},
487 { "log", cmd_log
, RUN_SETUP
},
488 { "ls-files", cmd_ls_files
, RUN_SETUP
},
489 { "ls-remote", cmd_ls_remote
, RUN_SETUP_GENTLY
},
490 { "ls-tree", cmd_ls_tree
, RUN_SETUP
},
491 { "mailinfo", cmd_mailinfo
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
492 { "mailsplit", cmd_mailsplit
, NO_PARSEOPT
},
493 { "merge", cmd_merge
, RUN_SETUP
| NEED_WORK_TREE
},
494 { "merge-base", cmd_merge_base
, RUN_SETUP
},
495 { "merge-file", cmd_merge_file
, RUN_SETUP_GENTLY
},
496 { "merge-index", cmd_merge_index
, RUN_SETUP
| NO_PARSEOPT
},
497 { "merge-ours", cmd_merge_ours
, RUN_SETUP
| NO_PARSEOPT
},
498 { "merge-recursive", cmd_merge_recursive
, RUN_SETUP
| NEED_WORK_TREE
| NO_PARSEOPT
},
499 { "merge-recursive-ours", cmd_merge_recursive
, RUN_SETUP
| NEED_WORK_TREE
| NO_PARSEOPT
},
500 { "merge-recursive-theirs", cmd_merge_recursive
, RUN_SETUP
| NEED_WORK_TREE
| NO_PARSEOPT
},
501 { "merge-subtree", cmd_merge_recursive
, RUN_SETUP
| NEED_WORK_TREE
| NO_PARSEOPT
},
502 { "merge-tree", cmd_merge_tree
, RUN_SETUP
| NO_PARSEOPT
},
503 { "mktag", cmd_mktag
, RUN_SETUP
| NO_PARSEOPT
},
504 { "mktree", cmd_mktree
, RUN_SETUP
},
505 { "mv", cmd_mv
, RUN_SETUP
| NEED_WORK_TREE
},
506 { "name-rev", cmd_name_rev
, RUN_SETUP
},
507 { "notes", cmd_notes
, RUN_SETUP
},
508 { "pack-objects", cmd_pack_objects
, RUN_SETUP
},
509 { "pack-redundant", cmd_pack_redundant
, RUN_SETUP
| NO_PARSEOPT
},
510 { "pack-refs", cmd_pack_refs
, RUN_SETUP
},
511 { "patch-id", cmd_patch_id
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
512 { "pickaxe", cmd_blame
, RUN_SETUP
},
513 { "prune", cmd_prune
, RUN_SETUP
},
514 { "prune-packed", cmd_prune_packed
, RUN_SETUP
},
515 { "pull", cmd_pull
, RUN_SETUP
| NEED_WORK_TREE
},
516 { "push", cmd_push
, RUN_SETUP
},
517 { "read-tree", cmd_read_tree
, RUN_SETUP
| SUPPORT_SUPER_PREFIX
},
518 { "rebase--helper", cmd_rebase__helper
, RUN_SETUP
| NEED_WORK_TREE
},
519 { "receive-pack", cmd_receive_pack
},
520 { "reflog", cmd_reflog
, RUN_SETUP
},
521 { "remote", cmd_remote
, RUN_SETUP
},
522 { "remote-ext", cmd_remote_ext
, NO_PARSEOPT
},
523 { "remote-fd", cmd_remote_fd
, NO_PARSEOPT
},
524 { "repack", cmd_repack
, RUN_SETUP
},
525 { "replace", cmd_replace
, RUN_SETUP
},
526 { "rerere", cmd_rerere
, RUN_SETUP
},
527 { "reset", cmd_reset
, RUN_SETUP
},
528 { "rev-list", cmd_rev_list
, RUN_SETUP
| NO_PARSEOPT
},
529 { "rev-parse", cmd_rev_parse
, NO_PARSEOPT
},
530 { "revert", cmd_revert
, RUN_SETUP
| NEED_WORK_TREE
},
531 { "rm", cmd_rm
, RUN_SETUP
},
532 { "send-pack", cmd_send_pack
, RUN_SETUP
},
533 { "shortlog", cmd_shortlog
, RUN_SETUP_GENTLY
| USE_PAGER
},
534 { "show", cmd_show
, RUN_SETUP
},
535 { "show-branch", cmd_show_branch
, RUN_SETUP
},
536 { "show-ref", cmd_show_ref
, RUN_SETUP
},
537 { "stage", cmd_add
, RUN_SETUP
| NEED_WORK_TREE
},
538 { "status", cmd_status
, RUN_SETUP
| NEED_WORK_TREE
},
539 { "stripspace", cmd_stripspace
},
540 { "submodule--helper", cmd_submodule__helper
, RUN_SETUP
| SUPPORT_SUPER_PREFIX
| NO_PARSEOPT
},
541 { "symbolic-ref", cmd_symbolic_ref
, RUN_SETUP
},
542 { "tag", cmd_tag
, RUN_SETUP
| DELAY_PAGER_CONFIG
},
543 { "unpack-file", cmd_unpack_file
, RUN_SETUP
| NO_PARSEOPT
},
544 { "unpack-objects", cmd_unpack_objects
, RUN_SETUP
| NO_PARSEOPT
},
545 { "update-index", cmd_update_index
, RUN_SETUP
},
546 { "update-ref", cmd_update_ref
, RUN_SETUP
},
547 { "update-server-info", cmd_update_server_info
, RUN_SETUP
},
548 { "upload-archive", cmd_upload_archive
, NO_PARSEOPT
},
549 { "upload-archive--writer", cmd_upload_archive_writer
, NO_PARSEOPT
},
550 { "var", cmd_var
, RUN_SETUP_GENTLY
| NO_PARSEOPT
},
551 { "verify-commit", cmd_verify_commit
, RUN_SETUP
},
552 { "verify-pack", cmd_verify_pack
},
553 { "verify-tag", cmd_verify_tag
, RUN_SETUP
},
554 { "version", cmd_version
},
555 { "whatchanged", cmd_whatchanged
, RUN_SETUP
},
556 { "worktree", cmd_worktree
, RUN_SETUP
| NO_PARSEOPT
},
557 { "write-tree", cmd_write_tree
, RUN_SETUP
},
560 static struct cmd_struct
*get_builtin(const char *s
)
563 for (i
= 0; i
< ARRAY_SIZE(commands
); i
++) {
564 struct cmd_struct
*p
= commands
+ i
;
565 if (!strcmp(s
, p
->cmd
))
571 int is_builtin(const char *s
)
573 return !!get_builtin(s
);
576 static void list_builtins(struct string_list
*out
, unsigned int exclude_option
)
579 for (i
= 0; i
< ARRAY_SIZE(commands
); i
++) {
580 if (exclude_option
&&
581 (commands
[i
].option
& exclude_option
))
583 string_list_append(out
, commands
[i
].cmd
);
587 #ifdef STRIP_EXTENSION
588 static void strip_extension(const char **argv
)
592 if (strip_suffix(argv
[0], STRIP_EXTENSION
, &len
))
593 argv
[0] = xmemdupz(argv
[0], len
);
596 #define strip_extension(cmd)
599 static void handle_builtin(int argc
, const char **argv
)
601 struct argv_array args
= ARGV_ARRAY_INIT
;
603 struct cmd_struct
*builtin
;
605 strip_extension(argv
);
608 /* Turn "git cmd --help" into "git help --exclude-guides cmd" */
609 if (argc
> 1 && !strcmp(argv
[1], "--help")) {
613 argv
[0] = cmd
= "help";
615 for (i
= 0; i
< argc
; i
++) {
616 argv_array_push(&args
, argv
[i
]);
618 argv_array_push(&args
, "--exclude-guides");
625 builtin
= get_builtin(cmd
);
627 exit(run_builtin(builtin
, argc
, argv
));
628 argv_array_clear(&args
);
631 static void execv_dashed_external(const char **argv
)
633 struct child_process cmd
= CHILD_PROCESS_INIT
;
636 if (get_super_prefix())
637 die("%s doesn't support --super-prefix", argv
[0]);
639 if (use_pager
== -1 && !is_builtin(argv
[0]))
640 use_pager
= check_pager_config(argv
[0]);
641 commit_pager_choice();
643 argv_array_pushf(&cmd
.args
, "git-%s", argv
[0]);
644 argv_array_pushv(&cmd
.args
, argv
+ 1);
645 cmd
.clean_on_exit
= 1;
646 cmd
.wait_after_clean
= 1;
647 cmd
.silent_exec_failure
= 1;
649 trace_argv_printf(cmd
.args
.argv
, "trace: exec:");
652 * If we fail because the command is not found, it is
653 * OK to return. Otherwise, we just pass along the status code,
654 * or our usual generic code if we were not even able to exec
657 status
= run_command(&cmd
);
660 else if (errno
!= ENOENT
)
664 static int run_argv(int *argcp
, const char ***argv
)
670 * If we tried alias and futzed with our environment,
671 * it no longer is safe to invoke builtins directly in
672 * general. We have to spawn them as dashed externals.
674 * NEEDSWORK: if we can figure out cases
675 * where it is safe to do, we can avoid spawning a new
679 handle_builtin(*argcp
, *argv
);
681 /* .. then try the external ones */
682 execv_dashed_external(*argv
);
684 /* It could be an alias -- this works around the insanity
685 * of overriding "git log" with "git show" by having
690 if (!handle_alias(argcp
, argv
))
698 int cmd_main(int argc
, const char **argv
)
707 const char *slash
= find_last_dir_sep(cmd
);
712 trace_command_performance(argv
);
715 * "git-xxxx" is the same as "git xxxx", but we obviously:
717 * - cannot take flags in between the "git" and the "xxxx".
718 * - cannot execute it externally (since it would just do
719 * the same thing over again)
721 * So we just directly call the builtin handler, and die if
722 * that one cannot handle it.
724 if (skip_prefix(cmd
, "git-", &cmd
)) {
726 handle_builtin(argc
, argv
);
727 die("cannot handle %s as a builtin", cmd
);
730 /* Look for flags.. */
733 handle_options(&argv
, &argc
, NULL
);
735 /* translate --help and --version into commands */
736 skip_prefix(argv
[0], "--", &argv
[0]);
738 /* The user didn't specify a command; give them help */
739 commit_pager_choice();
740 printf("usage: %s\n\n", git_usage_string
);
741 list_common_cmds_help();
742 printf("\n%s\n", _(git_more_info_string
));
748 * We use PATH to find git commands, but we prepend some higher
749 * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH
750 * environment, and the $(gitexecdir) from the Makefile at build
756 int was_alias
= run_argv(&argc
, &argv
);
760 fprintf(stderr
, _("expansion of alias '%s' failed; "
761 "'%s' is not a git command\n"),
766 cmd
= argv
[0] = help_unknown_cmd(cmd
);
772 fprintf(stderr
, _("failed to run command '%s': %s\n"),
773 cmd
, strerror(errno
));