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Commit | Line | Data |
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85023577 | 1 | #include "builtin.h" |
b2141fc1 | 2 | #include "config.h" |
d807c4a0 | 3 | #include "exec-cmd.h" |
fd5c363d | 4 | #include "help.h" |
d8e96fd8 | 5 | #include "run-command.h" |
65b5f948 | 6 | #include "alias.h" |
8e49d503 | 7 | |
007aa8d8 NTND |
8 | #define RUN_SETUP (1<<0) |
9 | #define RUN_SETUP_GENTLY (1<<1) | |
10 | #define USE_PAGER (1<<2) | |
11 | /* | |
12 | * require working tree to be present -- anything uses this needs | |
13 | * RUN_SETUP for reading from the configuration file. | |
14 | */ | |
15 | #define NEED_WORK_TREE (1<<3) | |
16 | #define SUPPORT_SUPER_PREFIX (1<<4) | |
17 | #define DELAY_PAGER_CONFIG (1<<5) | |
e9547947 | 18 | #define NO_PARSEOPT (1<<6) /* parse-options is not used */ |
007aa8d8 NTND |
19 | |
20 | struct cmd_struct { | |
21 | const char *cmd; | |
22 | int (*fn)(int, const char **, const char *); | |
e9547947 | 23 | unsigned int option; |
007aa8d8 NTND |
24 | }; |
25 | ||
822a7d50 | 26 | const char git_usage_string[] = |
fc045fe7 AS |
27 | N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n" |
28 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" | |
7213c288 | 29 | " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" |
fc045fe7 AS |
30 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" |
31 | " <command> [<args>]"); | |
822a7d50 | 32 | |
b7d96819 | 33 | const char git_more_info_string[] = |
ad5fe377 | 34 | N_("'git help -a' and 'git help -g' list available subcommands and some\n" |
73903d0b PO |
35 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
36 | "to read about a specific subcommand or concept."); | |
b7d96819 | 37 | |
4e10738a | 38 | static int use_pager = -1; |
c0562611 | 39 | |
e5d7a619 | 40 | static void list_builtins(struct string_list *list, unsigned int exclude_option); |
8893fd95 | 41 | |
e11dca10 NTND |
42 | static void exclude_helpers_from_list(struct string_list *list) |
43 | { | |
44 | int i = 0; | |
45 | ||
46 | while (i < list->nr) { | |
47 | if (strstr(list->items[i].string, "--")) | |
48 | unsorted_string_list_delete_item(list, i, 0); | |
49 | else | |
50 | i++; | |
51 | } | |
52 | } | |
53 | ||
0089521c NTND |
54 | static int match_token(const char *spec, int len, const char *token) |
55 | { | |
56 | int token_len = strlen(token); | |
57 | ||
58 | return len == token_len && !strncmp(spec, token, token_len); | |
59 | } | |
60 | ||
61 | static int list_cmds(const char *spec) | |
62 | { | |
e5d7a619 NTND |
63 | struct string_list list = STRING_LIST_INIT_DUP; |
64 | int i; | |
65 | ||
0089521c NTND |
66 | while (*spec) { |
67 | const char *sep = strchrnul(spec, ','); | |
68 | int len = sep - spec; | |
69 | ||
70 | if (match_token(spec, len, "builtins")) | |
e5d7a619 | 71 | list_builtins(&list, 0); |
6bb2dc0b NTND |
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); | |
e11dca10 NTND |
76 | else if (match_token(spec, len, "nohelpers")) |
77 | exclude_helpers_from_list(&list); | |
3301d36b NTND |
78 | else if (match_token(spec, len, "alias")) |
79 | list_aliases(&list); | |
6532f374 NTND |
80 | else if (match_token(spec, len, "config")) |
81 | list_cmds_by_config(&list); | |
3c777767 NTND |
82 | else if (len > 5 && !strncmp(spec, "list-", 5)) { |
83 | struct strbuf sb = STRBUF_INIT; | |
84 | ||
85 | strbuf_add(&sb, spec + 5, len - 5); | |
86 | list_cmds_by_category(&list, sb.buf); | |
87 | strbuf_release(&sb); | |
88 | } | |
0089521c NTND |
89 | else |
90 | die(_("unsupported command listing type '%s'"), spec); | |
91 | spec += len; | |
92 | if (*spec == ',') | |
93 | spec++; | |
94 | } | |
e5d7a619 NTND |
95 | for (i = 0; i < list.nr; i++) |
96 | puts(list.items[i].string); | |
97 | string_list_clear(&list, 0); | |
0089521c NTND |
98 | return 0; |
99 | } | |
8893fd95 | 100 | |
4e10738a JK |
101 | static void commit_pager_choice(void) { |
102 | switch (use_pager) { | |
103 | case 0: | |
104 | setenv("GIT_PAGER", "cat", 1); | |
105 | break; | |
106 | case 1: | |
107 | setup_pager(); | |
108 | break; | |
109 | default: | |
110 | break; | |
111 | } | |
112 | } | |
113 | ||
033fe3d9 MÅ |
114 | void setup_auto_pager(const char *cmd, int def) |
115 | { | |
116 | if (use_pager != -1 || pager_in_use()) | |
117 | return; | |
118 | use_pager = check_pager_config(cmd); | |
119 | if (use_pager == -1) | |
120 | use_pager = def; | |
121 | commit_pager_choice(); | |
122 | } | |
123 | ||
4b25d091 | 124 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 125 | { |
73546c08 | 126 | const char **orig_argv = *argv; |
4ab243a9 JS |
127 | |
128 | while (*argc > 0) { | |
129 | const char *cmd = (*argv)[0]; | |
130 | if (cmd[0] != '-') | |
131 | break; | |
132 | ||
6acbcb92 JS |
133 | /* |
134 | * For legacy reasons, the "version" and "help" | |
135 | * commands can be written with "--" prepended | |
136 | * to make them look like flags. | |
137 | */ | |
138 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) | |
139 | break; | |
140 | ||
141 | /* | |
142 | * Check remaining flags. | |
143 | */ | |
ae021d87 | 144 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 145 | if (*cmd == '=') |
226c0ddd | 146 | git_set_exec_path(cmd + 1); |
6acbcb92 JS |
147 | else { |
148 | puts(git_exec_path()); | |
149 | exit(0); | |
150 | } | |
89a56bfb MH |
151 | } else if (!strcmp(cmd, "--html-path")) { |
152 | puts(system_path(GIT_HTML_PATH)); | |
153 | exit(0); | |
f2dd8c37 JS |
154 | } else if (!strcmp(cmd, "--man-path")) { |
155 | puts(system_path(GIT_MAN_PATH)); | |
156 | exit(0); | |
157 | } else if (!strcmp(cmd, "--info-path")) { | |
158 | puts(system_path(GIT_INFO_PATH)); | |
159 | exit(0); | |
6acbcb92 | 160 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 161 | use_pager = 1; |
7213c288 | 162 | } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { |
4e10738a | 163 | use_pager = 0; |
463a849d MM |
164 | if (envchanged) |
165 | *envchanged = 1; | |
b0fa7ab5 | 166 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
6ebd1caf | 167 | read_replace_refs = 0; |
6476b38b CC |
168 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
169 | if (envchanged) | |
170 | *envchanged = 1; | |
6acbcb92 | 171 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 172 | if (*argc < 2) { |
fc045fe7 | 173 | fprintf(stderr, _("no directory given for --git-dir\n" )); |
c321f00d BG |
174 | usage(git_usage_string); |
175 | } | |
45b09794 | 176 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
177 | if (envchanged) |
178 | *envchanged = 1; | |
6acbcb92 JS |
179 | (*argv)++; |
180 | (*argc)--; | |
ae021d87 JK |
181 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
182 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
183 | if (envchanged) |
184 | *envchanged = 1; | |
a1bea2c1 JT |
185 | } else if (!strcmp(cmd, "--namespace")) { |
186 | if (*argc < 2) { | |
fc045fe7 | 187 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
188 | usage(git_usage_string); |
189 | } | |
190 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
191 | if (envchanged) | |
192 | *envchanged = 1; | |
193 | (*argv)++; | |
194 | (*argc)--; | |
ae021d87 JK |
195 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
196 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
197 | if (envchanged) |
198 | *envchanged = 1; | |
892c41b9 ML |
199 | } else if (!strcmp(cmd, "--work-tree")) { |
200 | if (*argc < 2) { | |
fc045fe7 | 201 | fprintf(stderr, _("no directory given for --work-tree\n" )); |
892c41b9 ML |
202 | usage(git_usage_string); |
203 | } | |
204 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
205 | if (envchanged) |
206 | *envchanged = 1; | |
892c41b9 ML |
207 | (*argv)++; |
208 | (*argc)--; | |
ae021d87 JK |
209 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
210 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
211 | if (envchanged) |
212 | *envchanged = 1; | |
74866d75 BW |
213 | } else if (!strcmp(cmd, "--super-prefix")) { |
214 | if (*argc < 2) { | |
fc045fe7 | 215 | fprintf(stderr, _("no prefix given for --super-prefix\n" )); |
74866d75 BW |
216 | usage(git_usage_string); |
217 | } | |
218 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1); | |
219 | if (envchanged) | |
220 | *envchanged = 1; | |
221 | (*argv)++; | |
222 | (*argc)--; | |
223 | } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) { | |
224 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1); | |
225 | if (envchanged) | |
226 | *envchanged = 1; | |
6acbcb92 | 227 | } else if (!strcmp(cmd, "--bare")) { |
4d3ab44d | 228 | char *cwd = xgetcwd(); |
6adcca3f | 229 | is_bare_repository_cfg = 1; |
4d3ab44d RS |
230 | setenv(GIT_DIR_ENVIRONMENT, cwd, 0); |
231 | free(cwd); | |
2cd83d10 | 232 | setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); |
4394efec ML |
233 | if (envchanged) |
234 | *envchanged = 1; | |
8b1fa778 AR |
235 | } else if (!strcmp(cmd, "-c")) { |
236 | if (*argc < 2) { | |
fc045fe7 | 237 | fprintf(stderr, _("-c expects a configuration string\n" )); |
8b1fa778 AR |
238 | usage(git_usage_string); |
239 | } | |
2b64fc89 | 240 | git_config_push_parameter((*argv)[1]); |
8b1fa778 AR |
241 | (*argv)++; |
242 | (*argc)--; | |
823ab40f JK |
243 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
244 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
245 | if (envchanged) | |
246 | *envchanged = 1; | |
247 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
248 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
249 | if (envchanged) | |
250 | *envchanged = 1; | |
bd30c2e4 NTND |
251 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
252 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
253 | if (envchanged) | |
254 | *envchanged = 1; | |
255 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
256 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
257 | if (envchanged) | |
258 | *envchanged = 1; | |
93d93537 NTND |
259 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
260 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
261 | if (envchanged) | |
262 | *envchanged = 1; | |
27344d6a JK |
263 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
264 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
265 | if (envchanged) | |
266 | *envchanged = 1; | |
6035d6aa NTND |
267 | } else if (!strcmp(cmd, "--shallow-file")) { |
268 | (*argv)++; | |
269 | (*argc)--; | |
6a2df51c | 270 | set_alternate_shallow_file(the_repository, (*argv)[0], 1); |
6035d6aa NTND |
271 | if (envchanged) |
272 | *envchanged = 1; | |
44e1e4d6 NR |
273 | } else if (!strcmp(cmd, "-C")) { |
274 | if (*argc < 2) { | |
fc045fe7 | 275 | fprintf(stderr, _("no directory given for -C\n" )); |
44e1e4d6 NR |
276 | usage(git_usage_string); |
277 | } | |
6a536e20 KN |
278 | if ((*argv)[1][0]) { |
279 | if (chdir((*argv)[1])) | |
fc045fe7 | 280 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
281 | if (envchanged) |
282 | *envchanged = 1; | |
283 | } | |
44e1e4d6 NR |
284 | (*argv)++; |
285 | (*argc)--; | |
0089521c NTND |
286 | } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) { |
287 | if (!strcmp(cmd, "parseopt")) { | |
e5d7a619 NTND |
288 | struct string_list list = STRING_LIST_INIT_DUP; |
289 | int i; | |
290 | ||
291 | list_builtins(&list, NO_PARSEOPT); | |
292 | for (i = 0; i < list.nr; i++) | |
293 | printf("%s ", list.items[i].string); | |
294 | string_list_clear(&list, 0); | |
0089521c NTND |
295 | exit(0); |
296 | } else { | |
297 | exit(list_cmds(cmd)); | |
298 | } | |
6acbcb92 | 299 | } else { |
fc045fe7 | 300 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 301 | usage(git_usage_string); |
6acbcb92 | 302 | } |
4ab243a9 JS |
303 | |
304 | (*argv)++; | |
305 | (*argc)--; | |
4ab243a9 | 306 | } |
73546c08 | 307 | return (*argv) - orig_argv; |
4ab243a9 JS |
308 | } |
309 | ||
2b11e317 JS |
310 | static int handle_alias(int *argcp, const char ***argv) |
311 | { | |
af05d679 | 312 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 313 | int count, option_count; |
4b25d091 | 314 | const char **new_argv; |
94351118 JK |
315 | const char *alias_command; |
316 | char *alias_string; | |
0347a8c7 ML |
317 | |
318 | alias_command = (*argv)[0]; | |
94351118 | 319 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 320 | if (alias_string) { |
dfd42a3c | 321 | if (alias_string[0] == '!') { |
850d2fec | 322 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
323 | int nongit_ok; |
324 | ||
325 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
326 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 327 | |
030149a4 | 328 | commit_pager_choice(); |
7f51f8bc | 329 | |
850d2fec JK |
330 | child.use_shell = 1; |
331 | argv_array_push(&child.args, alias_string + 1); | |
332 | argv_array_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 333 | |
850d2fec | 334 | ret = run_command(&child); |
7f51f8bc EFL |
335 | if (ret >= 0) /* normal exit */ |
336 | exit(ret); | |
337 | ||
fc045fe7 | 338 | die_errno("while expanding alias '%s': '%s'", |
7f51f8bc | 339 | alias_command, alias_string + 1); |
dfd42a3c | 340 | } |
0347a8c7 | 341 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 342 | if (count < 0) |
ad9ac6db GB |
343 | die("Bad alias.%s string: %s", alias_command, |
344 | split_cmdline_strerror(count)); | |
4394efec ML |
345 | option_count = handle_options(&new_argv, &count, &envchanged); |
346 | if (envchanged) | |
fc045fe7 AS |
347 | die("alias '%s' changes environment variables.\n" |
348 | "You can use '!git' in the alias to do this", | |
4394efec | 349 | alias_command); |
0347a8c7 ML |
350 | memmove(new_argv - option_count, new_argv, |
351 | count * sizeof(char *)); | |
352 | new_argv -= option_count; | |
353 | ||
354 | if (count < 1) | |
355 | die("empty alias for %s", alias_command); | |
356 | ||
357 | if (!strcmp(alias_command, new_argv[0])) | |
358 | die("recursive alias: %s", alias_command); | |
359 | ||
b319ce4c | 360 | trace_argv_printf(new_argv, |
6ce4e61f CC |
361 | "trace: alias expansion: %s =>", |
362 | alias_command); | |
575ba9d6 | 363 | |
2756ca43 | 364 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 365 | /* insert after command name */ |
4b25d091 | 366 | memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp); |
2b11e317 | 367 | |
0347a8c7 ML |
368 | *argv = new_argv; |
369 | *argcp += count - 1; | |
2b11e317 | 370 | |
0347a8c7 | 371 | ret = 1; |
2b11e317 JS |
372 | } |
373 | ||
47e5c0ca JS |
374 | errno = saved_errno; |
375 | ||
2b11e317 JS |
376 | return ret; |
377 | } | |
378 | ||
f172f334 | 379 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 380 | { |
99caeed0 | 381 | int status, help; |
0f157315 | 382 | struct stat st; |
47d0b4ff LT |
383 | const char *prefix; |
384 | ||
385 | prefix = NULL; | |
99caeed0 JN |
386 | help = argc == 2 && !strcmp(argv[1], "-h"); |
387 | if (!help) { | |
388 | if (p->option & RUN_SETUP) | |
389 | prefix = setup_git_directory(); | |
27bd38d4 | 390 | else if (p->option & RUN_SETUP_GENTLY) { |
ee38dfb8 NTND |
391 | int nongit_ok; |
392 | prefix = setup_git_directory_gently(&nongit_ok); | |
393 | } | |
99caeed0 | 394 | |
c409824c MÅ |
395 | if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY) && |
396 | !(p->option & DELAY_PAGER_CONFIG)) | |
99caeed0 JN |
397 | use_pager = check_pager_config(p->cmd); |
398 | if (use_pager == -1 && p->option & USE_PAGER) | |
399 | use_pager = 1; | |
a9ca8a85 NTND |
400 | |
401 | if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) && | |
402 | startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */ | |
403 | trace_repo_setup(prefix); | |
99caeed0 | 404 | } |
4e10738a JK |
405 | commit_pager_choice(); |
406 | ||
74866d75 BW |
407 | if (!help && get_super_prefix()) { |
408 | if (!(p->option & SUPPORT_SUPER_PREFIX)) | |
409 | die("%s doesn't support --super-prefix", p->cmd); | |
74866d75 BW |
410 | } |
411 | ||
99caeed0 | 412 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
413 | setup_work_tree(); |
414 | ||
b319ce4c | 415 | trace_argv_printf(argv, "trace: built-in: git"); |
47d0b4ff | 416 | |
8616a2d0 | 417 | validate_cache_entries(&the_index); |
0f157315 | 418 | status = p->fn(argc, argv, prefix); |
8616a2d0 JM |
419 | validate_cache_entries(&the_index); |
420 | ||
0f157315 | 421 | if (status) |
47e3de0e | 422 | return status; |
0f157315 LT |
423 | |
424 | /* Somebody closed stdout? */ | |
425 | if (fstat(fileno(stdout), &st)) | |
426 | return 0; | |
427 | /* Ignore write errors for pipes and sockets.. */ | |
428 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
429 | return 0; | |
430 | ||
431 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 432 | if (fflush(stdout)) |
d824cbba | 433 | die_errno("write failure on standard output"); |
0227f988 LT |
434 | if (ferror(stdout)) |
435 | die("unknown write failure on standard output"); | |
436 | if (fclose(stdout)) | |
d824cbba | 437 | die_errno("close failed on standard output"); |
0f157315 | 438 | return 0; |
47d0b4ff LT |
439 | } |
440 | ||
c6127fa3 SS |
441 | static struct cmd_struct commands[] = { |
442 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 443 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 | 444 | { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 445 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 446 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
447 | { "bisect--helper", cmd_bisect__helper, RUN_SETUP }, |
448 | { "blame", cmd_blame, RUN_SETUP }, | |
d74b541e | 449 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 | 450 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
451 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
452 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
453 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
454 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 455 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 456 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
457 | { "checkout-index", cmd_checkout_index, |
458 | RUN_SETUP | NEED_WORK_TREE}, | |
459 | { "cherry", cmd_cherry, RUN_SETUP }, | |
460 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
461 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 462 | { "clone", cmd_clone }, |
c6127fa3 SS |
463 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
464 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
4ce58ee3 | 465 | { "commit-graph", cmd_commit_graph, RUN_SETUP }, |
e9547947 | 466 | { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT }, |
32888b8f | 467 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 468 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 469 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 | 470 | { "describe", cmd_describe, RUN_SETUP }, |
e9547947 NTND |
471 | { "diff", cmd_diff, NO_PARSEOPT }, |
472 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
473 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
474 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
019678d6 | 475 | { "difftool", cmd_difftool, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
476 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
477 | { "fetch", cmd_fetch, RUN_SETUP }, | |
e9547947 | 478 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
479 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
480 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
481 | { "format-patch", cmd_format_patch, RUN_SETUP }, | |
482 | { "fsck", cmd_fsck, RUN_SETUP }, | |
483 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
484 | { "gc", cmd_gc, RUN_SETUP }, | |
e9547947 | 485 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 486 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
487 | { "hash-object", cmd_hash_object }, |
488 | { "help", cmd_help }, | |
e9547947 | 489 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
490 | { "init", cmd_init_db }, |
491 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 492 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 493 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 494 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
495 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
496 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
e9547947 NTND |
497 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
498 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, | |
c6127fa3 SS |
499 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
500 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
501 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
502 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
503 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
504 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
505 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
506 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
507 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
508 | { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT }, | |
509 | { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
510 | { "mktree", cmd_mktree, RUN_SETUP }, |
511 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, | |
512 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
513 | { "notes", cmd_notes, RUN_SETUP }, | |
514 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 515 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 516 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 517 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
518 | { "pickaxe", cmd_blame, RUN_SETUP }, |
519 | { "prune", cmd_prune, RUN_SETUP }, | |
520 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 521 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 522 | { "push", cmd_push, RUN_SETUP }, |
3d415425 | 523 | { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX}, |
4557f1ad | 524 | { "rebase--helper", cmd_rebase__helper, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
525 | { "receive-pack", cmd_receive_pack }, |
526 | { "reflog", cmd_reflog, RUN_SETUP }, | |
527 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
528 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
529 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
530 | { "repack", cmd_repack, RUN_SETUP }, |
531 | { "replace", cmd_replace, RUN_SETUP }, | |
532 | { "rerere", cmd_rerere, RUN_SETUP }, | |
533 | { "reset", cmd_reset, RUN_SETUP }, | |
e9547947 NTND |
534 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
535 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
536 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
537 | { "rm", cmd_rm, RUN_SETUP }, | |
538 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
ed10cb95 | 539 | { "serve", cmd_serve, RUN_SETUP }, |
c6127fa3 SS |
540 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, |
541 | { "show", cmd_show, RUN_SETUP }, | |
542 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
ff417260 | 543 | { "show-index", cmd_show_index }, |
c6127fa3 SS |
544 | { "show-ref", cmd_show_ref, RUN_SETUP }, |
545 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
546 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, | |
547 | { "stripspace", cmd_stripspace }, | |
e9547947 | 548 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT }, |
c6127fa3 | 549 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 550 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
551 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
552 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
553 | { "update-index", cmd_update_index, RUN_SETUP }, |
554 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
555 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
556 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
557 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
a3d6b53e | 558 | { "upload-pack", cmd_upload_pack }, |
e9547947 | 559 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
d07b00b7 | 560 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
561 | { "verify-pack", cmd_verify_pack }, |
562 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
563 | { "version", cmd_version }, | |
564 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
e9547947 | 565 | { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
566 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
567 | }; | |
568 | ||
c4f901d1 | 569 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
570 | { |
571 | int i; | |
572 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 573 | struct cmd_struct *p = commands + i; |
c6127fa3 | 574 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 575 | return p; |
c6127fa3 | 576 | } |
c4f901d1 SV |
577 | return NULL; |
578 | } | |
579 | ||
580 | int is_builtin(const char *s) | |
581 | { | |
582 | return !!get_builtin(s); | |
c6127fa3 SS |
583 | } |
584 | ||
e5d7a619 | 585 | static void list_builtins(struct string_list *out, unsigned int exclude_option) |
8893fd95 JK |
586 | { |
587 | int i; | |
e9547947 NTND |
588 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
589 | if (exclude_option && | |
590 | (commands[i].option & exclude_option)) | |
591 | continue; | |
e5d7a619 | 592 | string_list_append(out, commands[i].cmd); |
e9547947 | 593 | } |
8893fd95 JK |
594 | } |
595 | ||
63ca1c09 AK |
596 | #ifdef STRIP_EXTENSION |
597 | static void strip_extension(const char **argv) | |
598 | { | |
599 | size_t len; | |
600 | ||
601 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
602 | argv[0] = xmemdupz(argv[0], len); | |
603 | } | |
604 | #else | |
605 | #define strip_extension(cmd) | |
606 | #endif | |
607 | ||
3f784a4d | 608 | static void handle_builtin(int argc, const char **argv) |
231af832 | 609 | { |
2c6b6d9f | 610 | struct argv_array args = ARGV_ARRAY_INIT; |
63ca1c09 | 611 | const char *cmd; |
c4f901d1 | 612 | struct cmd_struct *builtin; |
23326d14 | 613 | |
63ca1c09 AK |
614 | strip_extension(argv); |
615 | cmd = argv[0]; | |
231af832 | 616 | |
2c6b6d9f | 617 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 618 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
619 | int i; |
620 | ||
1cd95087 LT |
621 | argv[1] = argv[0]; |
622 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
623 | |
624 | for (i = 0; i < argc; i++) { | |
625 | argv_array_push(&args, argv[i]); | |
626 | if (!i) | |
627 | argv_array_push(&args, "--exclude-guides"); | |
628 | } | |
629 | ||
630 | argc++; | |
631 | argv = args.argv; | |
1cd95087 LT |
632 | } |
633 | ||
c4f901d1 | 634 | builtin = get_builtin(cmd); |
441981bc JH |
635 | if (builtin) |
636 | exit(run_builtin(builtin, argc, argv)); | |
2c6b6d9f | 637 | argv_array_clear(&args); |
231af832 LT |
638 | } |
639 | ||
7550be0a JH |
640 | static void execv_dashed_external(const char **argv) |
641 | { | |
2b296c93 | 642 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 643 | int status; |
7550be0a | 644 | |
74866d75 BW |
645 | if (get_super_prefix()) |
646 | die("%s doesn't support --super-prefix", argv[0]); | |
647 | ||
595d59e2 | 648 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 649 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
650 | commit_pager_choice(); |
651 | ||
2b296c93 JK |
652 | argv_array_pushf(&cmd.args, "git-%s", argv[0]); |
653 | argv_array_pushv(&cmd.args, argv + 1); | |
654 | cmd.clean_on_exit = 1; | |
46df6906 | 655 | cmd.wait_after_clean = 1; |
2b296c93 | 656 | cmd.silent_exec_failure = 1; |
7550be0a | 657 | |
2b296c93 | 658 | trace_argv_printf(cmd.args.argv, "trace: exec:"); |
7550be0a | 659 | |
d8e96fd8 | 660 | /* |
246f0ede JK |
661 | * If we fail because the command is not found, it is |
662 | * OK to return. Otherwise, we just pass along the status code, | |
663 | * or our usual generic code if we were not even able to exec | |
664 | * the program. | |
d8e96fd8 | 665 | */ |
2b296c93 | 666 | status = run_command(&cmd); |
246f0ede | 667 | if (status >= 0) |
5709e036 | 668 | exit(status); |
246f0ede JK |
669 | else if (errno != ENOENT) |
670 | exit(128); | |
7550be0a JH |
671 | } |
672 | ||
a907e1b6 AS |
673 | static int run_argv(int *argcp, const char ***argv) |
674 | { | |
675 | int done_alias = 0; | |
676 | ||
677 | while (1) { | |
441981bc JH |
678 | /* |
679 | * If we tried alias and futzed with our environment, | |
680 | * it no longer is safe to invoke builtins directly in | |
681 | * general. We have to spawn them as dashed externals. | |
682 | * | |
683 | * NEEDSWORK: if we can figure out cases | |
684 | * where it is safe to do, we can avoid spawning a new | |
685 | * process. | |
686 | */ | |
687 | if (!done_alias) | |
688 | handle_builtin(*argcp, *argv); | |
a907e1b6 AS |
689 | |
690 | /* .. then try the external ones */ | |
691 | execv_dashed_external(*argv); | |
692 | ||
693 | /* It could be an alias -- this works around the insanity | |
694 | * of overriding "git log" with "git show" by having | |
695 | * alias.log = show | |
696 | */ | |
c0562611 NTND |
697 | if (done_alias) |
698 | break; | |
c0562611 | 699 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
700 | break; |
701 | done_alias = 1; | |
702 | } | |
703 | ||
704 | return done_alias; | |
705 | } | |
706 | ||
3f2e2297 | 707 | int cmd_main(int argc, const char **argv) |
8e49d503 | 708 | { |
4dd47c3b | 709 | const char *cmd; |
8fa7975b | 710 | int done_help = 0; |
231af832 | 711 | |
650c4492 | 712 | cmd = argv[0]; |
2cd72b0b | 713 | if (!cmd) |
4dd47c3b | 714 | cmd = "git-help"; |
6854a8f5 JK |
715 | else { |
716 | const char *slash = find_last_dir_sep(cmd); | |
717 | if (slash) | |
718 | cmd = slash + 1; | |
719 | } | |
8e49d503 | 720 | |
578da039 KB |
721 | trace_command_performance(argv); |
722 | ||
231af832 LT |
723 | /* |
724 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
725 | * | |
726 | * - cannot take flags in between the "git" and the "xxxx". | |
727 | * - cannot execute it externally (since it would just do | |
728 | * the same thing over again) | |
729 | * | |
3f784a4d SS |
730 | * So we just directly call the builtin handler, and die if |
731 | * that one cannot handle it. | |
231af832 | 732 | */ |
ae021d87 | 733 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 734 | argv[0] = cmd; |
3f784a4d SS |
735 | handle_builtin(argc, argv); |
736 | die("cannot handle %s as a builtin", cmd); | |
231af832 | 737 | } |
8e49d503 | 738 | |
231af832 | 739 | /* Look for flags.. */ |
6acbcb92 JS |
740 | argv++; |
741 | argc--; | |
4394efec | 742 | handle_options(&argv, &argc, NULL); |
6acbcb92 | 743 | if (argc > 0) { |
6d877803 JK |
744 | /* translate --help and --version into commands */ |
745 | skip_prefix(argv[0], "--", &argv[0]); | |
6acbcb92 | 746 | } else { |
3d7e2d85 | 747 | /* The user didn't specify a command; give them help */ |
73e25e7c | 748 | commit_pager_choice(); |
3d7e2d85 SP |
749 | printf("usage: %s\n\n", git_usage_string); |
750 | list_common_cmds_help(); | |
421a9769 | 751 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 752 | exit(1); |
97fc6c5f | 753 | } |
6acbcb92 | 754 | cmd = argv[0]; |
231af832 LT |
755 | |
756 | /* | |
511707d4 | 757 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 758 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
759 | * environment, and the $(gitexecdir) from the Makefile at build |
760 | * time. | |
231af832 | 761 | */ |
e1464ca7 | 762 | setup_path(); |
8e49d503 | 763 | |
a025463b | 764 | while (1) { |
8fa7975b | 765 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 766 | if (errno != ENOENT) |
a025463b | 767 | break; |
a907e1b6 | 768 | if (was_alias) { |
fc045fe7 AS |
769 | fprintf(stderr, _("expansion of alias '%s' failed; " |
770 | "'%s' is not a git command\n"), | |
f3dd015c TT |
771 | cmd, argv[0]); |
772 | exit(1); | |
773 | } | |
a907e1b6 AS |
774 | if (!done_help) { |
775 | cmd = argv[0] = help_unknown_cmd(cmd); | |
776 | done_help = 1; | |
777 | } else | |
778 | break; | |
f3dd015c | 779 | } |
10b15b86 | 780 | |
fc045fe7 | 781 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 782 | cmd, strerror(errno)); |
8e49d503 AE |
783 | |
784 | return 1; | |
785 | } |