]>
Commit | Line | Data |
---|---|---|
85023577 | 1 | #include "builtin.h" |
b2141fc1 | 2 | #include "config.h" |
fd5c363d TF |
3 | #include "exec_cmd.h" |
4 | #include "help.h" | |
d8e96fd8 | 5 | #include "run-command.h" |
8e49d503 | 6 | |
007aa8d8 NTND |
7 | #define RUN_SETUP (1<<0) |
8 | #define RUN_SETUP_GENTLY (1<<1) | |
9 | #define USE_PAGER (1<<2) | |
10 | /* | |
11 | * require working tree to be present -- anything uses this needs | |
12 | * RUN_SETUP for reading from the configuration file. | |
13 | */ | |
14 | #define NEED_WORK_TREE (1<<3) | |
15 | #define SUPPORT_SUPER_PREFIX (1<<4) | |
16 | #define DELAY_PAGER_CONFIG (1<<5) | |
e9547947 | 17 | #define NO_PARSEOPT (1<<6) /* parse-options is not used */ |
007aa8d8 NTND |
18 | |
19 | struct cmd_struct { | |
20 | const char *cmd; | |
21 | int (*fn)(int, const char **, const char *); | |
e9547947 | 22 | unsigned int option; |
007aa8d8 NTND |
23 | }; |
24 | ||
822a7d50 | 25 | const char git_usage_string[] = |
fc045fe7 AS |
26 | N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n" |
27 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" | |
28 | " [-p | --paginate | --no-pager] [--no-replace-objects] [--bare]\n" | |
29 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" | |
30 | " <command> [<args>]"); | |
822a7d50 | 31 | |
b7d96819 | 32 | const char git_more_info_string[] = |
ad5fe377 | 33 | N_("'git help -a' and 'git help -g' list available subcommands and some\n" |
73903d0b PO |
34 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
35 | "to read about a specific subcommand or concept."); | |
b7d96819 | 36 | |
4e10738a | 37 | static int use_pager = -1; |
c0562611 | 38 | |
e5d7a619 | 39 | static void list_builtins(struct string_list *list, unsigned int exclude_option); |
8893fd95 | 40 | |
0089521c NTND |
41 | static int match_token(const char *spec, int len, const char *token) |
42 | { | |
43 | int token_len = strlen(token); | |
44 | ||
45 | return len == token_len && !strncmp(spec, token, token_len); | |
46 | } | |
47 | ||
48 | static int list_cmds(const char *spec) | |
49 | { | |
e5d7a619 NTND |
50 | struct string_list list = STRING_LIST_INIT_DUP; |
51 | int i; | |
52 | ||
0089521c NTND |
53 | while (*spec) { |
54 | const char *sep = strchrnul(spec, ','); | |
55 | int len = sep - spec; | |
56 | ||
57 | if (match_token(spec, len, "builtins")) | |
e5d7a619 | 58 | list_builtins(&list, 0); |
6bb2dc0b NTND |
59 | else if (match_token(spec, len, "main")) |
60 | list_all_main_cmds(&list); | |
61 | else if (match_token(spec, len, "others")) | |
62 | list_all_other_cmds(&list); | |
3c777767 NTND |
63 | else if (len > 5 && !strncmp(spec, "list-", 5)) { |
64 | struct strbuf sb = STRBUF_INIT; | |
65 | ||
66 | strbuf_add(&sb, spec + 5, len - 5); | |
67 | list_cmds_by_category(&list, sb.buf); | |
68 | strbuf_release(&sb); | |
69 | } | |
0089521c NTND |
70 | else |
71 | die(_("unsupported command listing type '%s'"), spec); | |
72 | spec += len; | |
73 | if (*spec == ',') | |
74 | spec++; | |
75 | } | |
e5d7a619 NTND |
76 | for (i = 0; i < list.nr; i++) |
77 | puts(list.items[i].string); | |
78 | string_list_clear(&list, 0); | |
0089521c NTND |
79 | return 0; |
80 | } | |
81 | ||
4e10738a JK |
82 | static void commit_pager_choice(void) { |
83 | switch (use_pager) { | |
84 | case 0: | |
85 | setenv("GIT_PAGER", "cat", 1); | |
86 | break; | |
87 | case 1: | |
88 | setup_pager(); | |
89 | break; | |
90 | default: | |
91 | break; | |
92 | } | |
93 | } | |
94 | ||
033fe3d9 MÅ |
95 | void setup_auto_pager(const char *cmd, int def) |
96 | { | |
97 | if (use_pager != -1 || pager_in_use()) | |
98 | return; | |
99 | use_pager = check_pager_config(cmd); | |
100 | if (use_pager == -1) | |
101 | use_pager = def; | |
102 | commit_pager_choice(); | |
103 | } | |
104 | ||
4b25d091 | 105 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 106 | { |
73546c08 | 107 | const char **orig_argv = *argv; |
4ab243a9 JS |
108 | |
109 | while (*argc > 0) { | |
110 | const char *cmd = (*argv)[0]; | |
111 | if (cmd[0] != '-') | |
112 | break; | |
113 | ||
6acbcb92 JS |
114 | /* |
115 | * For legacy reasons, the "version" and "help" | |
116 | * commands can be written with "--" prepended | |
117 | * to make them look like flags. | |
118 | */ | |
119 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) | |
120 | break; | |
121 | ||
122 | /* | |
123 | * Check remaining flags. | |
124 | */ | |
ae021d87 | 125 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 126 | if (*cmd == '=') |
384df833 | 127 | git_set_argv_exec_path(cmd + 1); |
6acbcb92 JS |
128 | else { |
129 | puts(git_exec_path()); | |
130 | exit(0); | |
131 | } | |
89a56bfb MH |
132 | } else if (!strcmp(cmd, "--html-path")) { |
133 | puts(system_path(GIT_HTML_PATH)); | |
134 | exit(0); | |
f2dd8c37 JS |
135 | } else if (!strcmp(cmd, "--man-path")) { |
136 | puts(system_path(GIT_MAN_PATH)); | |
137 | exit(0); | |
138 | } else if (!strcmp(cmd, "--info-path")) { | |
139 | puts(system_path(GIT_INFO_PATH)); | |
140 | exit(0); | |
6acbcb92 | 141 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 142 | use_pager = 1; |
463a849d | 143 | } else if (!strcmp(cmd, "--no-pager")) { |
4e10738a | 144 | use_pager = 0; |
463a849d MM |
145 | if (envchanged) |
146 | *envchanged = 1; | |
b0fa7ab5 | 147 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
afc711b8 | 148 | check_replace_refs = 0; |
6476b38b CC |
149 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
150 | if (envchanged) | |
151 | *envchanged = 1; | |
6acbcb92 | 152 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 153 | if (*argc < 2) { |
fc045fe7 | 154 | fprintf(stderr, _("no directory given for --git-dir\n" )); |
c321f00d BG |
155 | usage(git_usage_string); |
156 | } | |
45b09794 | 157 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
158 | if (envchanged) |
159 | *envchanged = 1; | |
6acbcb92 JS |
160 | (*argv)++; |
161 | (*argc)--; | |
ae021d87 JK |
162 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
163 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
164 | if (envchanged) |
165 | *envchanged = 1; | |
a1bea2c1 JT |
166 | } else if (!strcmp(cmd, "--namespace")) { |
167 | if (*argc < 2) { | |
fc045fe7 | 168 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
169 | usage(git_usage_string); |
170 | } | |
171 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
172 | if (envchanged) | |
173 | *envchanged = 1; | |
174 | (*argv)++; | |
175 | (*argc)--; | |
ae021d87 JK |
176 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
177 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
178 | if (envchanged) |
179 | *envchanged = 1; | |
892c41b9 ML |
180 | } else if (!strcmp(cmd, "--work-tree")) { |
181 | if (*argc < 2) { | |
fc045fe7 | 182 | fprintf(stderr, _("no directory given for --work-tree\n" )); |
892c41b9 ML |
183 | usage(git_usage_string); |
184 | } | |
185 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
186 | if (envchanged) |
187 | *envchanged = 1; | |
892c41b9 ML |
188 | (*argv)++; |
189 | (*argc)--; | |
ae021d87 JK |
190 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
191 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
192 | if (envchanged) |
193 | *envchanged = 1; | |
74866d75 BW |
194 | } else if (!strcmp(cmd, "--super-prefix")) { |
195 | if (*argc < 2) { | |
fc045fe7 | 196 | fprintf(stderr, _("no prefix given for --super-prefix\n" )); |
74866d75 BW |
197 | usage(git_usage_string); |
198 | } | |
199 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1); | |
200 | if (envchanged) | |
201 | *envchanged = 1; | |
202 | (*argv)++; | |
203 | (*argc)--; | |
204 | } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) { | |
205 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1); | |
206 | if (envchanged) | |
207 | *envchanged = 1; | |
6acbcb92 | 208 | } else if (!strcmp(cmd, "--bare")) { |
4d3ab44d | 209 | char *cwd = xgetcwd(); |
6adcca3f | 210 | is_bare_repository_cfg = 1; |
4d3ab44d RS |
211 | setenv(GIT_DIR_ENVIRONMENT, cwd, 0); |
212 | free(cwd); | |
2cd83d10 | 213 | setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); |
4394efec ML |
214 | if (envchanged) |
215 | *envchanged = 1; | |
8b1fa778 AR |
216 | } else if (!strcmp(cmd, "-c")) { |
217 | if (*argc < 2) { | |
fc045fe7 | 218 | fprintf(stderr, _("-c expects a configuration string\n" )); |
8b1fa778 AR |
219 | usage(git_usage_string); |
220 | } | |
2b64fc89 | 221 | git_config_push_parameter((*argv)[1]); |
8b1fa778 AR |
222 | (*argv)++; |
223 | (*argc)--; | |
823ab40f JK |
224 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
225 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
226 | if (envchanged) | |
227 | *envchanged = 1; | |
228 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
229 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
230 | if (envchanged) | |
231 | *envchanged = 1; | |
bd30c2e4 NTND |
232 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
233 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
234 | if (envchanged) | |
235 | *envchanged = 1; | |
236 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
237 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
238 | if (envchanged) | |
239 | *envchanged = 1; | |
93d93537 NTND |
240 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
241 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
242 | if (envchanged) | |
243 | *envchanged = 1; | |
27344d6a JK |
244 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
245 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
246 | if (envchanged) | |
247 | *envchanged = 1; | |
6035d6aa NTND |
248 | } else if (!strcmp(cmd, "--shallow-file")) { |
249 | (*argv)++; | |
250 | (*argc)--; | |
069c0532 | 251 | set_alternate_shallow_file((*argv)[0], 1); |
6035d6aa NTND |
252 | if (envchanged) |
253 | *envchanged = 1; | |
44e1e4d6 NR |
254 | } else if (!strcmp(cmd, "-C")) { |
255 | if (*argc < 2) { | |
fc045fe7 | 256 | fprintf(stderr, _("no directory given for -C\n" )); |
44e1e4d6 NR |
257 | usage(git_usage_string); |
258 | } | |
6a536e20 KN |
259 | if ((*argv)[1][0]) { |
260 | if (chdir((*argv)[1])) | |
fc045fe7 | 261 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
262 | if (envchanged) |
263 | *envchanged = 1; | |
264 | } | |
44e1e4d6 NR |
265 | (*argv)++; |
266 | (*argc)--; | |
0089521c NTND |
267 | } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) { |
268 | if (!strcmp(cmd, "parseopt")) { | |
e5d7a619 NTND |
269 | struct string_list list = STRING_LIST_INIT_DUP; |
270 | int i; | |
271 | ||
272 | list_builtins(&list, NO_PARSEOPT); | |
273 | for (i = 0; i < list.nr; i++) | |
274 | printf("%s ", list.items[i].string); | |
275 | string_list_clear(&list, 0); | |
0089521c NTND |
276 | exit(0); |
277 | } else { | |
278 | exit(list_cmds(cmd)); | |
279 | } | |
6acbcb92 | 280 | } else { |
fc045fe7 | 281 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 282 | usage(git_usage_string); |
6acbcb92 | 283 | } |
4ab243a9 JS |
284 | |
285 | (*argv)++; | |
286 | (*argc)--; | |
4ab243a9 | 287 | } |
73546c08 | 288 | return (*argv) - orig_argv; |
4ab243a9 JS |
289 | } |
290 | ||
2b11e317 JS |
291 | static int handle_alias(int *argcp, const char ***argv) |
292 | { | |
af05d679 | 293 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 294 | int count, option_count; |
4b25d091 | 295 | const char **new_argv; |
94351118 JK |
296 | const char *alias_command; |
297 | char *alias_string; | |
0347a8c7 ML |
298 | |
299 | alias_command = (*argv)[0]; | |
94351118 | 300 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 301 | if (alias_string) { |
dfd42a3c | 302 | if (alias_string[0] == '!') { |
850d2fec | 303 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
304 | int nongit_ok; |
305 | ||
306 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
307 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 308 | |
030149a4 | 309 | commit_pager_choice(); |
7f51f8bc | 310 | |
850d2fec JK |
311 | child.use_shell = 1; |
312 | argv_array_push(&child.args, alias_string + 1); | |
313 | argv_array_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 314 | |
850d2fec | 315 | ret = run_command(&child); |
7f51f8bc EFL |
316 | if (ret >= 0) /* normal exit */ |
317 | exit(ret); | |
318 | ||
fc045fe7 | 319 | die_errno("while expanding alias '%s': '%s'", |
7f51f8bc | 320 | alias_command, alias_string + 1); |
dfd42a3c | 321 | } |
0347a8c7 | 322 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 323 | if (count < 0) |
ad9ac6db GB |
324 | die("Bad alias.%s string: %s", alias_command, |
325 | split_cmdline_strerror(count)); | |
4394efec ML |
326 | option_count = handle_options(&new_argv, &count, &envchanged); |
327 | if (envchanged) | |
fc045fe7 AS |
328 | die("alias '%s' changes environment variables.\n" |
329 | "You can use '!git' in the alias to do this", | |
4394efec | 330 | alias_command); |
0347a8c7 ML |
331 | memmove(new_argv - option_count, new_argv, |
332 | count * sizeof(char *)); | |
333 | new_argv -= option_count; | |
334 | ||
335 | if (count < 1) | |
336 | die("empty alias for %s", alias_command); | |
337 | ||
338 | if (!strcmp(alias_command, new_argv[0])) | |
339 | die("recursive alias: %s", alias_command); | |
340 | ||
b319ce4c | 341 | trace_argv_printf(new_argv, |
6ce4e61f CC |
342 | "trace: alias expansion: %s =>", |
343 | alias_command); | |
575ba9d6 | 344 | |
2756ca43 | 345 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 346 | /* insert after command name */ |
4b25d091 | 347 | memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp); |
2b11e317 | 348 | |
0347a8c7 ML |
349 | *argv = new_argv; |
350 | *argcp += count - 1; | |
2b11e317 | 351 | |
0347a8c7 | 352 | ret = 1; |
2b11e317 JS |
353 | } |
354 | ||
47e5c0ca JS |
355 | errno = saved_errno; |
356 | ||
2b11e317 JS |
357 | return ret; |
358 | } | |
359 | ||
f172f334 | 360 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 361 | { |
99caeed0 | 362 | int status, help; |
0f157315 | 363 | struct stat st; |
47d0b4ff LT |
364 | const char *prefix; |
365 | ||
366 | prefix = NULL; | |
99caeed0 JN |
367 | help = argc == 2 && !strcmp(argv[1], "-h"); |
368 | if (!help) { | |
369 | if (p->option & RUN_SETUP) | |
370 | prefix = setup_git_directory(); | |
27bd38d4 | 371 | else if (p->option & RUN_SETUP_GENTLY) { |
ee38dfb8 NTND |
372 | int nongit_ok; |
373 | prefix = setup_git_directory_gently(&nongit_ok); | |
374 | } | |
99caeed0 | 375 | |
c409824c MÅ |
376 | if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY) && |
377 | !(p->option & DELAY_PAGER_CONFIG)) | |
99caeed0 JN |
378 | use_pager = check_pager_config(p->cmd); |
379 | if (use_pager == -1 && p->option & USE_PAGER) | |
380 | use_pager = 1; | |
a9ca8a85 NTND |
381 | |
382 | if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) && | |
383 | startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */ | |
384 | trace_repo_setup(prefix); | |
99caeed0 | 385 | } |
4e10738a JK |
386 | commit_pager_choice(); |
387 | ||
74866d75 BW |
388 | if (!help && get_super_prefix()) { |
389 | if (!(p->option & SUPPORT_SUPER_PREFIX)) | |
390 | die("%s doesn't support --super-prefix", p->cmd); | |
74866d75 BW |
391 | } |
392 | ||
99caeed0 | 393 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
394 | setup_work_tree(); |
395 | ||
b319ce4c | 396 | trace_argv_printf(argv, "trace: built-in: git"); |
47d0b4ff | 397 | |
0f157315 LT |
398 | status = p->fn(argc, argv, prefix); |
399 | if (status) | |
47e3de0e | 400 | return status; |
0f157315 LT |
401 | |
402 | /* Somebody closed stdout? */ | |
403 | if (fstat(fileno(stdout), &st)) | |
404 | return 0; | |
405 | /* Ignore write errors for pipes and sockets.. */ | |
406 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
407 | return 0; | |
408 | ||
409 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 410 | if (fflush(stdout)) |
d824cbba | 411 | die_errno("write failure on standard output"); |
0227f988 LT |
412 | if (ferror(stdout)) |
413 | die("unknown write failure on standard output"); | |
414 | if (fclose(stdout)) | |
d824cbba | 415 | die_errno("close failed on standard output"); |
0f157315 | 416 | return 0; |
47d0b4ff LT |
417 | } |
418 | ||
c6127fa3 SS |
419 | static struct cmd_struct commands[] = { |
420 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 421 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 | 422 | { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 423 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 424 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
425 | { "bisect--helper", cmd_bisect__helper, RUN_SETUP }, |
426 | { "blame", cmd_blame, RUN_SETUP }, | |
d74b541e | 427 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 | 428 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
429 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
430 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
431 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
432 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 433 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 434 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
435 | { "checkout-index", cmd_checkout_index, |
436 | RUN_SETUP | NEED_WORK_TREE}, | |
437 | { "cherry", cmd_cherry, RUN_SETUP }, | |
438 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
439 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 440 | { "clone", cmd_clone }, |
c6127fa3 SS |
441 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
442 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
e9547947 | 443 | { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT }, |
32888b8f | 444 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 445 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 446 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 | 447 | { "describe", cmd_describe, RUN_SETUP }, |
e9547947 NTND |
448 | { "diff", cmd_diff, NO_PARSEOPT }, |
449 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
450 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
451 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
019678d6 | 452 | { "difftool", cmd_difftool, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
453 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
454 | { "fetch", cmd_fetch, RUN_SETUP }, | |
e9547947 | 455 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
456 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
457 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
458 | { "format-patch", cmd_format_patch, RUN_SETUP }, | |
459 | { "fsck", cmd_fsck, RUN_SETUP }, | |
460 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
461 | { "gc", cmd_gc, RUN_SETUP }, | |
e9547947 | 462 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 463 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
464 | { "hash-object", cmd_hash_object }, |
465 | { "help", cmd_help }, | |
e9547947 | 466 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
467 | { "init", cmd_init_db }, |
468 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 469 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 470 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 471 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
472 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
473 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
e9547947 NTND |
474 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
475 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, | |
c6127fa3 SS |
476 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
477 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
478 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
479 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
480 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
481 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
482 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
483 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
484 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
485 | { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT }, | |
486 | { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
487 | { "mktree", cmd_mktree, RUN_SETUP }, |
488 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, | |
489 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
490 | { "notes", cmd_notes, RUN_SETUP }, | |
491 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 492 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 493 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 494 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
495 | { "pickaxe", cmd_blame, RUN_SETUP }, |
496 | { "prune", cmd_prune, RUN_SETUP }, | |
497 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 498 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 499 | { "push", cmd_push, RUN_SETUP }, |
3d415425 | 500 | { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX}, |
4557f1ad | 501 | { "rebase--helper", cmd_rebase__helper, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
502 | { "receive-pack", cmd_receive_pack }, |
503 | { "reflog", cmd_reflog, RUN_SETUP }, | |
504 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
505 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
506 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
507 | { "repack", cmd_repack, RUN_SETUP }, |
508 | { "replace", cmd_replace, RUN_SETUP }, | |
509 | { "rerere", cmd_rerere, RUN_SETUP }, | |
510 | { "reset", cmd_reset, RUN_SETUP }, | |
e9547947 NTND |
511 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
512 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
513 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
514 | { "rm", cmd_rm, RUN_SETUP }, | |
515 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
516 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, | |
517 | { "show", cmd_show, RUN_SETUP }, | |
518 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
519 | { "show-ref", cmd_show_ref, RUN_SETUP }, | |
520 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
521 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, | |
522 | { "stripspace", cmd_stripspace }, | |
e9547947 | 523 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT }, |
c6127fa3 | 524 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 525 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
526 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
527 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
528 | { "update-index", cmd_update_index, RUN_SETUP }, |
529 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
530 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
531 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
532 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
533 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, | |
d07b00b7 | 534 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
535 | { "verify-pack", cmd_verify_pack }, |
536 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
537 | { "version", cmd_version }, | |
538 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
e9547947 | 539 | { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
540 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
541 | }; | |
542 | ||
c4f901d1 | 543 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
544 | { |
545 | int i; | |
546 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 547 | struct cmd_struct *p = commands + i; |
c6127fa3 | 548 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 549 | return p; |
c6127fa3 | 550 | } |
c4f901d1 SV |
551 | return NULL; |
552 | } | |
553 | ||
554 | int is_builtin(const char *s) | |
555 | { | |
556 | return !!get_builtin(s); | |
c6127fa3 SS |
557 | } |
558 | ||
e5d7a619 | 559 | static void list_builtins(struct string_list *out, unsigned int exclude_option) |
8893fd95 JK |
560 | { |
561 | int i; | |
e9547947 NTND |
562 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
563 | if (exclude_option && | |
564 | (commands[i].option & exclude_option)) | |
565 | continue; | |
e5d7a619 | 566 | string_list_append(out, commands[i].cmd); |
e9547947 | 567 | } |
8893fd95 JK |
568 | } |
569 | ||
63ca1c09 AK |
570 | #ifdef STRIP_EXTENSION |
571 | static void strip_extension(const char **argv) | |
572 | { | |
573 | size_t len; | |
574 | ||
575 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
576 | argv[0] = xmemdupz(argv[0], len); | |
577 | } | |
578 | #else | |
579 | #define strip_extension(cmd) | |
580 | #endif | |
581 | ||
3f784a4d | 582 | static void handle_builtin(int argc, const char **argv) |
231af832 | 583 | { |
2c6b6d9f | 584 | struct argv_array args = ARGV_ARRAY_INIT; |
63ca1c09 | 585 | const char *cmd; |
c4f901d1 | 586 | struct cmd_struct *builtin; |
23326d14 | 587 | |
63ca1c09 AK |
588 | strip_extension(argv); |
589 | cmd = argv[0]; | |
231af832 | 590 | |
2c6b6d9f | 591 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 592 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
593 | int i; |
594 | ||
1cd95087 LT |
595 | argv[1] = argv[0]; |
596 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
597 | |
598 | for (i = 0; i < argc; i++) { | |
599 | argv_array_push(&args, argv[i]); | |
600 | if (!i) | |
601 | argv_array_push(&args, "--exclude-guides"); | |
602 | } | |
603 | ||
604 | argc++; | |
605 | argv = args.argv; | |
1cd95087 LT |
606 | } |
607 | ||
c4f901d1 | 608 | builtin = get_builtin(cmd); |
441981bc JH |
609 | if (builtin) |
610 | exit(run_builtin(builtin, argc, argv)); | |
2c6b6d9f | 611 | argv_array_clear(&args); |
231af832 LT |
612 | } |
613 | ||
7550be0a JH |
614 | static void execv_dashed_external(const char **argv) |
615 | { | |
2b296c93 | 616 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 617 | int status; |
7550be0a | 618 | |
74866d75 BW |
619 | if (get_super_prefix()) |
620 | die("%s doesn't support --super-prefix", argv[0]); | |
621 | ||
595d59e2 | 622 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 623 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
624 | commit_pager_choice(); |
625 | ||
2b296c93 JK |
626 | argv_array_pushf(&cmd.args, "git-%s", argv[0]); |
627 | argv_array_pushv(&cmd.args, argv + 1); | |
628 | cmd.clean_on_exit = 1; | |
46df6906 | 629 | cmd.wait_after_clean = 1; |
2b296c93 | 630 | cmd.silent_exec_failure = 1; |
7550be0a | 631 | |
2b296c93 | 632 | trace_argv_printf(cmd.args.argv, "trace: exec:"); |
7550be0a | 633 | |
d8e96fd8 | 634 | /* |
246f0ede JK |
635 | * If we fail because the command is not found, it is |
636 | * OK to return. Otherwise, we just pass along the status code, | |
637 | * or our usual generic code if we were not even able to exec | |
638 | * the program. | |
d8e96fd8 | 639 | */ |
2b296c93 | 640 | status = run_command(&cmd); |
246f0ede | 641 | if (status >= 0) |
5709e036 | 642 | exit(status); |
246f0ede JK |
643 | else if (errno != ENOENT) |
644 | exit(128); | |
7550be0a JH |
645 | } |
646 | ||
a907e1b6 AS |
647 | static int run_argv(int *argcp, const char ***argv) |
648 | { | |
649 | int done_alias = 0; | |
650 | ||
651 | while (1) { | |
441981bc JH |
652 | /* |
653 | * If we tried alias and futzed with our environment, | |
654 | * it no longer is safe to invoke builtins directly in | |
655 | * general. We have to spawn them as dashed externals. | |
656 | * | |
657 | * NEEDSWORK: if we can figure out cases | |
658 | * where it is safe to do, we can avoid spawning a new | |
659 | * process. | |
660 | */ | |
661 | if (!done_alias) | |
662 | handle_builtin(*argcp, *argv); | |
a907e1b6 AS |
663 | |
664 | /* .. then try the external ones */ | |
665 | execv_dashed_external(*argv); | |
666 | ||
667 | /* It could be an alias -- this works around the insanity | |
668 | * of overriding "git log" with "git show" by having | |
669 | * alias.log = show | |
670 | */ | |
c0562611 NTND |
671 | if (done_alias) |
672 | break; | |
c0562611 | 673 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
674 | break; |
675 | done_alias = 1; | |
676 | } | |
677 | ||
678 | return done_alias; | |
679 | } | |
680 | ||
3f2e2297 | 681 | int cmd_main(int argc, const char **argv) |
8e49d503 | 682 | { |
4dd47c3b | 683 | const char *cmd; |
8fa7975b | 684 | int done_help = 0; |
231af832 | 685 | |
650c4492 | 686 | cmd = argv[0]; |
2cd72b0b | 687 | if (!cmd) |
4dd47c3b | 688 | cmd = "git-help"; |
6854a8f5 JK |
689 | else { |
690 | const char *slash = find_last_dir_sep(cmd); | |
691 | if (slash) | |
692 | cmd = slash + 1; | |
693 | } | |
8e49d503 | 694 | |
578da039 KB |
695 | trace_command_performance(argv); |
696 | ||
231af832 LT |
697 | /* |
698 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
699 | * | |
700 | * - cannot take flags in between the "git" and the "xxxx". | |
701 | * - cannot execute it externally (since it would just do | |
702 | * the same thing over again) | |
703 | * | |
3f784a4d SS |
704 | * So we just directly call the builtin handler, and die if |
705 | * that one cannot handle it. | |
231af832 | 706 | */ |
ae021d87 | 707 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 708 | argv[0] = cmd; |
3f784a4d SS |
709 | handle_builtin(argc, argv); |
710 | die("cannot handle %s as a builtin", cmd); | |
231af832 | 711 | } |
8e49d503 | 712 | |
231af832 | 713 | /* Look for flags.. */ |
6acbcb92 JS |
714 | argv++; |
715 | argc--; | |
4394efec | 716 | handle_options(&argv, &argc, NULL); |
6acbcb92 | 717 | if (argc > 0) { |
6d877803 JK |
718 | /* translate --help and --version into commands */ |
719 | skip_prefix(argv[0], "--", &argv[0]); | |
6acbcb92 | 720 | } else { |
3d7e2d85 | 721 | /* The user didn't specify a command; give them help */ |
73e25e7c | 722 | commit_pager_choice(); |
3d7e2d85 SP |
723 | printf("usage: %s\n\n", git_usage_string); |
724 | list_common_cmds_help(); | |
421a9769 | 725 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 726 | exit(1); |
97fc6c5f | 727 | } |
6acbcb92 | 728 | cmd = argv[0]; |
231af832 LT |
729 | |
730 | /* | |
511707d4 | 731 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 732 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
733 | * environment, and the $(gitexecdir) from the Makefile at build |
734 | * time. | |
231af832 | 735 | */ |
e1464ca7 | 736 | setup_path(); |
8e49d503 | 737 | |
a025463b | 738 | while (1) { |
8fa7975b | 739 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 740 | if (errno != ENOENT) |
a025463b | 741 | break; |
a907e1b6 | 742 | if (was_alias) { |
fc045fe7 AS |
743 | fprintf(stderr, _("expansion of alias '%s' failed; " |
744 | "'%s' is not a git command\n"), | |
f3dd015c TT |
745 | cmd, argv[0]); |
746 | exit(1); | |
747 | } | |
a907e1b6 AS |
748 | if (!done_help) { |
749 | cmd = argv[0] = help_unknown_cmd(cmd); | |
750 | done_help = 1; | |
751 | } else | |
752 | break; | |
f3dd015c | 753 | } |
10b15b86 | 754 | |
fc045fe7 | 755 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 756 | cmd, strerror(errno)); |
8e49d503 AE |
757 | |
758 | return 1; | |
759 | } |