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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" |
120ad2b0 | 7 | #include "shallow.h" |
8e49d503 | 8 | |
007aa8d8 NTND |
9 | #define RUN_SETUP (1<<0) |
10 | #define RUN_SETUP_GENTLY (1<<1) | |
11 | #define USE_PAGER (1<<2) | |
12 | /* | |
13 | * require working tree to be present -- anything uses this needs | |
14 | * RUN_SETUP for reading from the configuration file. | |
15 | */ | |
16 | #define NEED_WORK_TREE (1<<3) | |
4002ec3d ÆAB |
17 | #define DELAY_PAGER_CONFIG (1<<4) |
18 | #define NO_PARSEOPT (1<<5) /* 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[] = |
6b52f48b | 27 | N_("git [-v | --version] [-h | --help] [-C <path>] [-c <name>=<value>]\n" |
fc045fe7 | 28 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" |
7213c288 | 29 | " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" |
fc045fe7 | 30 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" |
4002ec3d | 31 | " [--config-env=<name>=<envvar>] <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 | 35 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
e55f36b8 PO |
36 | "to read about a specific subcommand or concept.\n" |
37 | "See 'git help git' for an overview of the system."); | |
b7d96819 | 38 | |
4e10738a | 39 | static int use_pager = -1; |
c0562611 | 40 | |
e5d7a619 | 41 | static void list_builtins(struct string_list *list, unsigned int exclude_option); |
8893fd95 | 42 | |
e11dca10 NTND |
43 | static void exclude_helpers_from_list(struct string_list *list) |
44 | { | |
45 | int i = 0; | |
46 | ||
47 | while (i < list->nr) { | |
48 | if (strstr(list->items[i].string, "--")) | |
49 | unsorted_string_list_delete_item(list, i, 0); | |
50 | else | |
51 | i++; | |
52 | } | |
53 | } | |
54 | ||
0089521c NTND |
55 | static int match_token(const char *spec, int len, const char *token) |
56 | { | |
57 | int token_len = strlen(token); | |
58 | ||
59 | return len == token_len && !strncmp(spec, token, token_len); | |
60 | } | |
61 | ||
62 | static int list_cmds(const char *spec) | |
63 | { | |
e5d7a619 NTND |
64 | struct string_list list = STRING_LIST_INIT_DUP; |
65 | int i; | |
83b0ecf3 JK |
66 | int nongit; |
67 | ||
68 | /* | |
69 | * Set up the repository so we can pick up any repo-level config (like | |
70 | * completion.commands). | |
71 | */ | |
72 | setup_git_directory_gently(&nongit); | |
e5d7a619 | 73 | |
0089521c NTND |
74 | while (*spec) { |
75 | const char *sep = strchrnul(spec, ','); | |
76 | int len = sep - spec; | |
77 | ||
78 | if (match_token(spec, len, "builtins")) | |
e5d7a619 | 79 | list_builtins(&list, 0); |
6bb2dc0b NTND |
80 | else if (match_token(spec, len, "main")) |
81 | list_all_main_cmds(&list); | |
82 | else if (match_token(spec, len, "others")) | |
83 | list_all_other_cmds(&list); | |
e11dca10 NTND |
84 | else if (match_token(spec, len, "nohelpers")) |
85 | exclude_helpers_from_list(&list); | |
3301d36b NTND |
86 | else if (match_token(spec, len, "alias")) |
87 | list_aliases(&list); | |
6532f374 NTND |
88 | else if (match_token(spec, len, "config")) |
89 | list_cmds_by_config(&list); | |
3c777767 NTND |
90 | else if (len > 5 && !strncmp(spec, "list-", 5)) { |
91 | struct strbuf sb = STRBUF_INIT; | |
92 | ||
93 | strbuf_add(&sb, spec + 5, len - 5); | |
94 | list_cmds_by_category(&list, sb.buf); | |
95 | strbuf_release(&sb); | |
96 | } | |
0089521c NTND |
97 | else |
98 | die(_("unsupported command listing type '%s'"), spec); | |
99 | spec += len; | |
100 | if (*spec == ',') | |
101 | spec++; | |
102 | } | |
e5d7a619 NTND |
103 | for (i = 0; i < list.nr; i++) |
104 | puts(list.items[i].string); | |
105 | string_list_clear(&list, 0); | |
0089521c NTND |
106 | return 0; |
107 | } | |
8893fd95 | 108 | |
3b335762 NTND |
109 | static void commit_pager_choice(void) |
110 | { | |
4e10738a JK |
111 | switch (use_pager) { |
112 | case 0: | |
113 | setenv("GIT_PAGER", "cat", 1); | |
114 | break; | |
115 | case 1: | |
116 | setup_pager(); | |
117 | break; | |
118 | default: | |
119 | break; | |
120 | } | |
121 | } | |
122 | ||
033fe3d9 MÅ |
123 | void setup_auto_pager(const char *cmd, int def) |
124 | { | |
125 | if (use_pager != -1 || pager_in_use()) | |
126 | return; | |
127 | use_pager = check_pager_config(cmd); | |
128 | if (use_pager == -1) | |
129 | use_pager = def; | |
130 | commit_pager_choice(); | |
131 | } | |
132 | ||
4b25d091 | 133 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 134 | { |
73546c08 | 135 | const char **orig_argv = *argv; |
4ab243a9 JS |
136 | |
137 | while (*argc > 0) { | |
138 | const char *cmd = (*argv)[0]; | |
139 | if (cmd[0] != '-') | |
140 | break; | |
141 | ||
6acbcb92 JS |
142 | /* |
143 | * For legacy reasons, the "version" and "help" | |
144 | * commands can be written with "--" prepended | |
145 | * to make them look like flags. | |
146 | */ | |
6b52f48b GF |
147 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "-h") || |
148 | !strcmp(cmd, "--version") || !strcmp(cmd, "-v")) | |
6acbcb92 JS |
149 | break; |
150 | ||
151 | /* | |
152 | * Check remaining flags. | |
153 | */ | |
ae021d87 | 154 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 155 | if (*cmd == '=') |
226c0ddd | 156 | git_set_exec_path(cmd + 1); |
6acbcb92 JS |
157 | else { |
158 | puts(git_exec_path()); | |
ee4512ed | 159 | trace2_cmd_name("_query_"); |
6acbcb92 JS |
160 | exit(0); |
161 | } | |
89a56bfb MH |
162 | } else if (!strcmp(cmd, "--html-path")) { |
163 | puts(system_path(GIT_HTML_PATH)); | |
ee4512ed | 164 | trace2_cmd_name("_query_"); |
89a56bfb | 165 | exit(0); |
f2dd8c37 JS |
166 | } else if (!strcmp(cmd, "--man-path")) { |
167 | puts(system_path(GIT_MAN_PATH)); | |
ee4512ed | 168 | trace2_cmd_name("_query_"); |
f2dd8c37 JS |
169 | exit(0); |
170 | } else if (!strcmp(cmd, "--info-path")) { | |
171 | puts(system_path(GIT_INFO_PATH)); | |
ee4512ed | 172 | trace2_cmd_name("_query_"); |
f2dd8c37 | 173 | exit(0); |
6acbcb92 | 174 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 175 | use_pager = 1; |
7213c288 | 176 | } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { |
4e10738a | 177 | use_pager = 0; |
463a849d MM |
178 | if (envchanged) |
179 | *envchanged = 1; | |
b0fa7ab5 | 180 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
6ebd1caf | 181 | read_replace_refs = 0; |
6476b38b CC |
182 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
183 | if (envchanged) | |
184 | *envchanged = 1; | |
6acbcb92 | 185 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 186 | if (*argc < 2) { |
986cd655 | 187 | fprintf(stderr, _("no directory given for '%s' option\n" ), "--git-dir"); |
c321f00d BG |
188 | usage(git_usage_string); |
189 | } | |
45b09794 | 190 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
191 | if (envchanged) |
192 | *envchanged = 1; | |
6acbcb92 JS |
193 | (*argv)++; |
194 | (*argc)--; | |
ae021d87 JK |
195 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
196 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
197 | if (envchanged) |
198 | *envchanged = 1; | |
a1bea2c1 JT |
199 | } else if (!strcmp(cmd, "--namespace")) { |
200 | if (*argc < 2) { | |
fc045fe7 | 201 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
202 | usage(git_usage_string); |
203 | } | |
204 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
205 | if (envchanged) | |
206 | *envchanged = 1; | |
207 | (*argv)++; | |
208 | (*argc)--; | |
ae021d87 JK |
209 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
210 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
211 | if (envchanged) |
212 | *envchanged = 1; | |
892c41b9 ML |
213 | } else if (!strcmp(cmd, "--work-tree")) { |
214 | if (*argc < 2) { | |
986cd655 | 215 | fprintf(stderr, _("no directory given for '%s' option\n" ), "--work-tree"); |
892c41b9 ML |
216 | usage(git_usage_string); |
217 | } | |
218 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
219 | if (envchanged) |
220 | *envchanged = 1; | |
892c41b9 ML |
221 | (*argv)++; |
222 | (*argc)--; | |
ae021d87 JK |
223 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
224 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
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)--; | |
c331551c PS |
243 | } else if (!strcmp(cmd, "--config-env")) { |
244 | if (*argc < 2) { | |
245 | fprintf(stderr, _("no config key given for --config-env\n" )); | |
246 | usage(git_usage_string); | |
247 | } | |
248 | git_config_push_env((*argv)[1]); | |
249 | (*argv)++; | |
250 | (*argc)--; | |
ce81b1da PS |
251 | } else if (skip_prefix(cmd, "--config-env=", &cmd)) { |
252 | git_config_push_env(cmd); | |
823ab40f JK |
253 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
254 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
255 | if (envchanged) | |
256 | *envchanged = 1; | |
257 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
258 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
259 | if (envchanged) | |
260 | *envchanged = 1; | |
bd30c2e4 NTND |
261 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
262 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
263 | if (envchanged) | |
264 | *envchanged = 1; | |
265 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
266 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
267 | if (envchanged) | |
268 | *envchanged = 1; | |
93d93537 NTND |
269 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
270 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
271 | if (envchanged) | |
272 | *envchanged = 1; | |
27344d6a JK |
273 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
274 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
275 | if (envchanged) | |
276 | *envchanged = 1; | |
6035d6aa NTND |
277 | } else if (!strcmp(cmd, "--shallow-file")) { |
278 | (*argv)++; | |
279 | (*argc)--; | |
6a2df51c | 280 | set_alternate_shallow_file(the_repository, (*argv)[0], 1); |
6035d6aa NTND |
281 | if (envchanged) |
282 | *envchanged = 1; | |
44e1e4d6 NR |
283 | } else if (!strcmp(cmd, "-C")) { |
284 | if (*argc < 2) { | |
986cd655 | 285 | fprintf(stderr, _("no directory given for '%s' option\n" ), "-C"); |
44e1e4d6 NR |
286 | usage(git_usage_string); |
287 | } | |
6a536e20 KN |
288 | if ((*argv)[1][0]) { |
289 | if (chdir((*argv)[1])) | |
fc045fe7 | 290 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
291 | if (envchanged) |
292 | *envchanged = 1; | |
293 | } | |
44e1e4d6 NR |
294 | (*argv)++; |
295 | (*argc)--; | |
0089521c | 296 | } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) { |
ee4512ed | 297 | trace2_cmd_name("_query_"); |
0089521c | 298 | if (!strcmp(cmd, "parseopt")) { |
e5d7a619 NTND |
299 | struct string_list list = STRING_LIST_INIT_DUP; |
300 | int i; | |
301 | ||
302 | list_builtins(&list, NO_PARSEOPT); | |
303 | for (i = 0; i < list.nr; i++) | |
304 | printf("%s ", list.items[i].string); | |
305 | string_list_clear(&list, 0); | |
0089521c NTND |
306 | exit(0); |
307 | } else { | |
308 | exit(list_cmds(cmd)); | |
309 | } | |
6acbcb92 | 310 | } else { |
fc045fe7 | 311 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 312 | usage(git_usage_string); |
6acbcb92 | 313 | } |
4ab243a9 JS |
314 | |
315 | (*argv)++; | |
316 | (*argc)--; | |
4ab243a9 | 317 | } |
73546c08 | 318 | return (*argv) - orig_argv; |
4ab243a9 JS |
319 | } |
320 | ||
2b11e317 JS |
321 | static int handle_alias(int *argcp, const char ***argv) |
322 | { | |
af05d679 | 323 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 324 | int count, option_count; |
4b25d091 | 325 | const char **new_argv; |
94351118 JK |
326 | const char *alias_command; |
327 | char *alias_string; | |
0347a8c7 ML |
328 | |
329 | alias_command = (*argv)[0]; | |
94351118 | 330 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 331 | if (alias_string) { |
a9a60b94 RV |
332 | if (*argcp > 1 && !strcmp((*argv)[1], "-h")) |
333 | fprintf_ln(stderr, _("'%s' is aliased to '%s'"), | |
334 | alias_command, alias_string); | |
dfd42a3c | 335 | if (alias_string[0] == '!') { |
850d2fec | 336 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
337 | int nongit_ok; |
338 | ||
339 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
340 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 341 | |
030149a4 | 342 | commit_pager_choice(); |
7f51f8bc | 343 | |
850d2fec | 344 | child.use_shell = 1; |
c0d73a59 TA |
345 | child.clean_on_exit = 1; |
346 | child.wait_after_clean = 1; | |
ee4512ed | 347 | child.trace2_child_class = "shell_alias"; |
ef8d7ac4 JK |
348 | strvec_push(&child.args, alias_string + 1); |
349 | strvec_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 350 | |
d70a9eb6 | 351 | trace2_cmd_alias(alias_command, child.args.v); |
ee4512ed | 352 | trace2_cmd_list_config(); |
3d3adaad | 353 | trace2_cmd_list_env_vars(); |
ee4512ed JH |
354 | trace2_cmd_name("_run_shell_alias_"); |
355 | ||
850d2fec | 356 | ret = run_command(&child); |
7f51f8bc EFL |
357 | if (ret >= 0) /* normal exit */ |
358 | exit(ret); | |
359 | ||
8aa8c140 NTND |
360 | die_errno(_("while expanding alias '%s': '%s'"), |
361 | alias_command, alias_string + 1); | |
dfd42a3c | 362 | } |
0347a8c7 | 363 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 364 | if (count < 0) |
8aa8c140 | 365 | die(_("bad alias.%s string: %s"), alias_command, |
a7412ae1 | 366 | _(split_cmdline_strerror(count))); |
4394efec ML |
367 | option_count = handle_options(&new_argv, &count, &envchanged); |
368 | if (envchanged) | |
8aa8c140 NTND |
369 | die(_("alias '%s' changes environment variables.\n" |
370 | "You can use '!git' in the alias to do this"), | |
371 | alias_command); | |
7bd97d6d | 372 | MOVE_ARRAY(new_argv - option_count, new_argv, count); |
0347a8c7 ML |
373 | new_argv -= option_count; |
374 | ||
375 | if (count < 1) | |
8aa8c140 | 376 | die(_("empty alias for %s"), alias_command); |
0347a8c7 ML |
377 | |
378 | if (!strcmp(alias_command, new_argv[0])) | |
8aa8c140 | 379 | die(_("recursive alias: %s"), alias_command); |
0347a8c7 | 380 | |
b319ce4c | 381 | trace_argv_printf(new_argv, |
6ce4e61f CC |
382 | "trace: alias expansion: %s =>", |
383 | alias_command); | |
575ba9d6 | 384 | |
2756ca43 | 385 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 386 | /* insert after command name */ |
7bd97d6d | 387 | COPY_ARRAY(new_argv + count, *argv + 1, *argcp); |
2b11e317 | 388 | |
ee4512ed JH |
389 | trace2_cmd_alias(alias_command, new_argv); |
390 | trace2_cmd_list_config(); | |
3d3adaad | 391 | trace2_cmd_list_env_vars(); |
ee4512ed | 392 | |
0347a8c7 ML |
393 | *argv = new_argv; |
394 | *argcp += count - 1; | |
2b11e317 | 395 | |
0347a8c7 | 396 | ret = 1; |
2b11e317 JS |
397 | } |
398 | ||
47e5c0ca JS |
399 | errno = saved_errno; |
400 | ||
2b11e317 JS |
401 | return ret; |
402 | } | |
403 | ||
f172f334 | 404 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 405 | { |
99caeed0 | 406 | int status, help; |
0f157315 | 407 | struct stat st; |
47d0b4ff | 408 | const char *prefix; |
e5b17bda | 409 | int run_setup = (p->option & (RUN_SETUP | RUN_SETUP_GENTLY)); |
47d0b4ff | 410 | |
99caeed0 | 411 | help = argc == 2 && !strcmp(argv[1], "-h"); |
e5b17bda LD |
412 | if (help && (run_setup & RUN_SETUP)) |
413 | /* demote to GENTLY to allow 'git cmd -h' outside repo */ | |
414 | run_setup = RUN_SETUP_GENTLY; | |
415 | ||
416 | if (run_setup & RUN_SETUP) { | |
417 | prefix = setup_git_directory(); | |
418 | } else if (run_setup & RUN_SETUP_GENTLY) { | |
419 | int nongit_ok; | |
420 | prefix = setup_git_directory_gently(&nongit_ok); | |
421 | } else { | |
422 | prefix = NULL; | |
99caeed0 | 423 | } |
9725c8dd | 424 | assert(!prefix || *prefix); |
e5b17bda LD |
425 | precompose_argv_prefix(argc, argv, NULL); |
426 | if (use_pager == -1 && run_setup && | |
427 | !(p->option & DELAY_PAGER_CONFIG)) | |
428 | use_pager = check_pager_config(p->cmd); | |
429 | if (use_pager == -1 && p->option & USE_PAGER) | |
430 | use_pager = 1; | |
431 | if (run_setup && startup_info->have_repository) | |
432 | /* get_git_dir() may set up repo, avoid that */ | |
433 | trace_repo_setup(prefix); | |
4e10738a JK |
434 | commit_pager_choice(); |
435 | ||
99caeed0 | 436 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
437 | setup_work_tree(); |
438 | ||
b319ce4c | 439 | trace_argv_printf(argv, "trace: built-in: git"); |
ee4512ed JH |
440 | trace2_cmd_name(p->cmd); |
441 | trace2_cmd_list_config(); | |
3d3adaad | 442 | trace2_cmd_list_env_vars(); |
47d0b4ff | 443 | |
f8adbec9 | 444 | validate_cache_entries(the_repository->index); |
0f157315 | 445 | status = p->fn(argc, argv, prefix); |
f8adbec9 | 446 | validate_cache_entries(the_repository->index); |
8616a2d0 | 447 | |
0f157315 | 448 | if (status) |
47e3de0e | 449 | return status; |
0f157315 LT |
450 | |
451 | /* Somebody closed stdout? */ | |
452 | if (fstat(fileno(stdout), &st)) | |
453 | return 0; | |
454 | /* Ignore write errors for pipes and sockets.. */ | |
455 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
456 | return 0; | |
457 | ||
458 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 459 | if (fflush(stdout)) |
8aa8c140 | 460 | die_errno(_("write failure on standard output")); |
0227f988 | 461 | if (ferror(stdout)) |
8aa8c140 | 462 | die(_("unknown write failure on standard output")); |
0227f988 | 463 | if (fclose(stdout)) |
8aa8c140 | 464 | die_errno(_("close failed on standard output")); |
0f157315 | 465 | return 0; |
47d0b4ff LT |
466 | } |
467 | ||
c6127fa3 SS |
468 | static struct cmd_struct commands[] = { |
469 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 470 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
66fa6e8e | 471 | { "annotate", cmd_annotate, RUN_SETUP }, |
c6127fa3 | 472 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 473 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
73fce294 | 474 | { "bisect", cmd_bisect, RUN_SETUP }, |
c6127fa3 | 475 | { "blame", cmd_blame, RUN_SETUP }, |
d74b541e | 476 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
d7a5649c | 477 | { "bugreport", cmd_bugreport, RUN_SETUP_GENTLY }, |
66fa6e8e | 478 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
479 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
480 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
481 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
482 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 483 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 484 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
e9e8adf1 | 485 | { "checkout--worker", cmd_checkout__worker, |
4002ec3d | 486 | RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
487 | { "checkout-index", cmd_checkout_index, |
488 | RUN_SETUP | NEED_WORK_TREE}, | |
489 | { "cherry", cmd_cherry, RUN_SETUP }, | |
490 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
491 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 492 | { "clone", cmd_clone }, |
c6127fa3 SS |
493 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
494 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
4ce58ee3 | 495 | { "commit-graph", cmd_commit_graph, RUN_SETUP }, |
66fa6e8e | 496 | { "commit-tree", cmd_commit_tree, RUN_SETUP }, |
32888b8f | 497 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 498 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 499 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
b5dd96b7 JK |
500 | { "credential-cache", cmd_credential_cache }, |
501 | { "credential-cache--daemon", cmd_credential_cache_daemon }, | |
502 | { "credential-store", cmd_credential_store }, | |
c6127fa3 | 503 | { "describe", cmd_describe, RUN_SETUP }, |
6783fd3c | 504 | { "diagnose", cmd_diagnose, RUN_SETUP_GENTLY }, |
e9547947 NTND |
505 | { "diff", cmd_diff, NO_PARSEOPT }, |
506 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
507 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
508 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
20de316e | 509 | { "difftool", cmd_difftool, RUN_SETUP_GENTLY }, |
c6127fa3 | 510 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
a006f875 | 511 | { "fast-import", cmd_fast_import, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 512 | { "fetch", cmd_fetch, RUN_SETUP }, |
e9547947 | 513 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
514 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
515 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
4950b2a2 | 516 | { "for-each-repo", cmd_for_each_repo, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
517 | { "format-patch", cmd_format_patch, RUN_SETUP }, |
518 | { "fsck", cmd_fsck, RUN_SETUP }, | |
519 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
bb61a962 | 520 | { "fsmonitor--daemon", cmd_fsmonitor__daemon, RUN_SETUP }, |
c6127fa3 | 521 | { "gc", cmd_gc, RUN_SETUP }, |
e9547947 | 522 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 523 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
524 | { "hash-object", cmd_hash_object }, |
525 | { "help", cmd_help }, | |
96e7225b | 526 | { "hook", cmd_hook, RUN_SETUP }, |
e9547947 | 527 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
528 | { "init", cmd_init_db }, |
529 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 530 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 531 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 532 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
533 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
534 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
66fa6e8e | 535 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY }, |
e9547947 | 536 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, |
03509544 | 537 | { "maintenance", cmd_maintenance, RUN_SETUP }, |
c6127fa3 SS |
538 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
539 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
540 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
541 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
542 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
543 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
544 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
545 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
546 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
6ec755a0 | 547 | { "merge-tree", cmd_merge_tree, RUN_SETUP }, |
66fa6e8e | 548 | { "mktag", cmd_mktag, RUN_SETUP }, |
c6127fa3 | 549 | { "mktree", cmd_mktree, RUN_SETUP }, |
73ff4ad0 | 550 | { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP }, |
c6127fa3 SS |
551 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, |
552 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
553 | { "notes", cmd_notes, RUN_SETUP }, | |
554 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 555 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 556 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 557 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
558 | { "pickaxe", cmd_blame, RUN_SETUP }, |
559 | { "prune", cmd_prune, RUN_SETUP }, | |
560 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 561 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 562 | { "push", cmd_push, RUN_SETUP }, |
348ae56c | 563 | { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER }, |
4002ec3d | 564 | { "read-tree", cmd_read_tree, RUN_SETUP }, |
80dfc924 | 565 | { "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
566 | { "receive-pack", cmd_receive_pack }, |
567 | { "reflog", cmd_reflog, RUN_SETUP }, | |
568 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
569 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
570 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
571 | { "repack", cmd_repack, RUN_SETUP }, |
572 | { "replace", cmd_replace, RUN_SETUP }, | |
573 | { "rerere", cmd_rerere, RUN_SETUP }, | |
574 | { "reset", cmd_reset, RUN_SETUP }, | |
46e91b66 | 575 | { "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 NTND |
576 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
577 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
578 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
579 | { "rm", cmd_rm, RUN_SETUP }, | |
580 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
581 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, | |
582 | { "show", cmd_show, RUN_SETUP }, | |
583 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
88a09a55 | 584 | { "show-index", cmd_show_index, RUN_SETUP_GENTLY }, |
c6127fa3 | 585 | { "show-ref", cmd_show_ref, RUN_SETUP }, |
94c0956b | 586 | { "sparse-checkout", cmd_sparse_checkout, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 587 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, |
8a2cd3f5 | 588 | { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
589 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, |
590 | { "stripspace", cmd_stripspace }, | |
f5a6be9d | 591 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP }, |
d787d311 | 592 | { "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 593 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 594 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
595 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
596 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
597 | { "update-index", cmd_update_index, RUN_SETUP }, |
598 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
599 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
600 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
601 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
a3d6b53e | 602 | { "upload-pack", cmd_upload_pack }, |
e9547947 | 603 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
d07b00b7 | 604 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
605 | { "verify-pack", cmd_verify_pack }, |
606 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
607 | { "version", cmd_version }, | |
608 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
398c4ff5 | 609 | { "worktree", cmd_worktree, RUN_SETUP }, |
c6127fa3 SS |
610 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
611 | }; | |
612 | ||
c4f901d1 | 613 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
614 | { |
615 | int i; | |
616 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 617 | struct cmd_struct *p = commands + i; |
c6127fa3 | 618 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 619 | return p; |
c6127fa3 | 620 | } |
c4f901d1 SV |
621 | return NULL; |
622 | } | |
623 | ||
624 | int is_builtin(const char *s) | |
625 | { | |
626 | return !!get_builtin(s); | |
c6127fa3 SS |
627 | } |
628 | ||
e5d7a619 | 629 | static void list_builtins(struct string_list *out, unsigned int exclude_option) |
8893fd95 JK |
630 | { |
631 | int i; | |
e9547947 NTND |
632 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
633 | if (exclude_option && | |
634 | (commands[i].option & exclude_option)) | |
635 | continue; | |
e5d7a619 | 636 | string_list_append(out, commands[i].cmd); |
e9547947 | 637 | } |
8893fd95 JK |
638 | } |
639 | ||
722fc374 JS |
640 | void load_builtin_commands(const char *prefix, struct cmdnames *cmds) |
641 | { | |
642 | const char *name; | |
643 | int i; | |
644 | ||
645 | /* | |
646 | * Callers can ask for a subset of the commands based on a certain | |
647 | * prefix, which is then dropped from the added names. The names in | |
648 | * the `commands[]` array do not have the `git-` prefix, though, | |
649 | * therefore we must expect the `prefix` to at least start with `git-`. | |
650 | */ | |
651 | if (!skip_prefix(prefix, "git-", &prefix)) | |
652 | BUG("prefix '%s' must start with 'git-'", prefix); | |
653 | ||
654 | for (i = 0; i < ARRAY_SIZE(commands); i++) | |
655 | if (skip_prefix(commands[i].cmd, prefix, &name)) | |
656 | add_cmdname(cmds, name, strlen(name)); | |
657 | } | |
658 | ||
63ca1c09 AK |
659 | #ifdef STRIP_EXTENSION |
660 | static void strip_extension(const char **argv) | |
661 | { | |
662 | size_t len; | |
663 | ||
664 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
665 | argv[0] = xmemdupz(argv[0], len); | |
666 | } | |
667 | #else | |
668 | #define strip_extension(cmd) | |
669 | #endif | |
670 | ||
3f784a4d | 671 | static void handle_builtin(int argc, const char **argv) |
231af832 | 672 | { |
ef8d7ac4 | 673 | struct strvec args = STRVEC_INIT; |
63ca1c09 | 674 | const char *cmd; |
c4f901d1 | 675 | struct cmd_struct *builtin; |
23326d14 | 676 | |
63ca1c09 AK |
677 | strip_extension(argv); |
678 | cmd = argv[0]; | |
231af832 | 679 | |
2c6b6d9f | 680 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 681 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
682 | int i; |
683 | ||
1cd95087 LT |
684 | argv[1] = argv[0]; |
685 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
686 | |
687 | for (i = 0; i < argc; i++) { | |
ef8d7ac4 | 688 | strvec_push(&args, argv[i]); |
2c6b6d9f | 689 | if (!i) |
ef8d7ac4 | 690 | strvec_push(&args, "--exclude-guides"); |
2c6b6d9f RT |
691 | } |
692 | ||
693 | argc++; | |
d70a9eb6 | 694 | argv = args.v; |
1cd95087 LT |
695 | } |
696 | ||
c4f901d1 | 697 | builtin = get_builtin(cmd); |
441981bc JH |
698 | if (builtin) |
699 | exit(run_builtin(builtin, argc, argv)); | |
ef8d7ac4 | 700 | strvec_clear(&args); |
231af832 LT |
701 | } |
702 | ||
7550be0a JH |
703 | static void execv_dashed_external(const char **argv) |
704 | { | |
2b296c93 | 705 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 706 | int status; |
7550be0a | 707 | |
595d59e2 | 708 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 709 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
710 | commit_pager_choice(); |
711 | ||
ef8d7ac4 JK |
712 | strvec_pushf(&cmd.args, "git-%s", argv[0]); |
713 | strvec_pushv(&cmd.args, argv + 1); | |
2b296c93 | 714 | cmd.clean_on_exit = 1; |
46df6906 | 715 | cmd.wait_after_clean = 1; |
2b296c93 | 716 | cmd.silent_exec_failure = 1; |
ee4512ed | 717 | cmd.trace2_child_class = "dashed"; |
7550be0a | 718 | |
ee4512ed JH |
719 | trace2_cmd_name("_run_dashed_"); |
720 | ||
721 | /* | |
722 | * The code in run_command() logs trace2 child_start/child_exit | |
723 | * events, so we do not need to report exec/exec_result events here. | |
724 | */ | |
d70a9eb6 | 725 | trace_argv_printf(cmd.args.v, "trace: exec:"); |
7550be0a | 726 | |
d8e96fd8 | 727 | /* |
246f0ede JK |
728 | * If we fail because the command is not found, it is |
729 | * OK to return. Otherwise, we just pass along the status code, | |
730 | * or our usual generic code if we were not even able to exec | |
731 | * the program. | |
d8e96fd8 | 732 | */ |
2b296c93 | 733 | status = run_command(&cmd); |
ee4512ed JH |
734 | |
735 | /* | |
736 | * If the child process ran and we are now going to exit, emit a | |
737 | * generic string as our trace2 command verb to indicate that we | |
738 | * launched a dashed command. | |
739 | */ | |
246f0ede | 740 | if (status >= 0) |
5709e036 | 741 | exit(status); |
246f0ede JK |
742 | else if (errno != ENOENT) |
743 | exit(128); | |
7550be0a JH |
744 | } |
745 | ||
a907e1b6 AS |
746 | static int run_argv(int *argcp, const char ***argv) |
747 | { | |
748 | int done_alias = 0; | |
c6d75bc1 | 749 | struct string_list cmd_list = STRING_LIST_INIT_NODUP; |
82f71d9a | 750 | struct string_list_item *seen; |
a907e1b6 AS |
751 | |
752 | while (1) { | |
441981bc JH |
753 | /* |
754 | * If we tried alias and futzed with our environment, | |
755 | * it no longer is safe to invoke builtins directly in | |
756 | * general. We have to spawn them as dashed externals. | |
757 | * | |
758 | * NEEDSWORK: if we can figure out cases | |
759 | * where it is safe to do, we can avoid spawning a new | |
760 | * process. | |
761 | */ | |
762 | if (!done_alias) | |
763 | handle_builtin(*argcp, *argv); | |
ee4512ed | 764 | else if (get_builtin(**argv)) { |
0e906739 | 765 | struct child_process cmd = CHILD_PROCESS_INIT; |
ee4512ed JH |
766 | int i; |
767 | ||
768 | /* | |
769 | * The current process is committed to launching a | |
770 | * child process to run the command named in (**argv) | |
771 | * and exiting. Log a generic string as the trace2 | |
772 | * command verb to indicate this. Note that the child | |
773 | * process will log the actual verb when it runs. | |
774 | */ | |
775 | trace2_cmd_name("_run_git_alias_"); | |
776 | ||
ee4512ed JH |
777 | commit_pager_choice(); |
778 | ||
0e906739 | 779 | strvec_push(&cmd.args, "git"); |
ee4512ed | 780 | for (i = 0; i < *argcp; i++) |
0e906739 | 781 | strvec_push(&cmd.args, (*argv)[i]); |
ee4512ed | 782 | |
0e906739 | 783 | trace_argv_printf(cmd.args.v, "trace: exec:"); |
ee4512ed JH |
784 | |
785 | /* | |
786 | * if we fail because the command is not found, it is | |
787 | * OK to return. Otherwise, we just pass along the status code. | |
788 | */ | |
0e906739 RS |
789 | cmd.silent_exec_failure = 1; |
790 | cmd.clean_on_exit = 1; | |
791 | cmd.wait_after_clean = 1; | |
792 | cmd.trace2_child_class = "git_alias"; | |
793 | i = run_command(&cmd); | |
ee4512ed JH |
794 | if (i >= 0 || errno != ENOENT) |
795 | exit(i); | |
796 | die("could not execute builtin %s", **argv); | |
797 | } | |
ee4512ed | 798 | |
a907e1b6 AS |
799 | /* .. then try the external ones */ |
800 | execv_dashed_external(*argv); | |
801 | ||
82f71d9a TS |
802 | seen = unsorted_string_list_lookup(&cmd_list, *argv[0]); |
803 | if (seen) { | |
804 | int i; | |
805 | struct strbuf sb = STRBUF_INIT; | |
806 | for (i = 0; i < cmd_list.nr; i++) { | |
807 | struct string_list_item *item = &cmd_list.items[i]; | |
808 | ||
809 | strbuf_addf(&sb, "\n %s", item->string); | |
810 | if (item == seen) | |
811 | strbuf_addstr(&sb, " <=="); | |
812 | else if (i == cmd_list.nr - 1) | |
813 | strbuf_addstr(&sb, " ==>"); | |
814 | } | |
c6d75bc1 | 815 | die(_("alias loop detected: expansion of '%s' does" |
82f71d9a | 816 | " not terminate:%s"), cmd_list.items[0].string, sb.buf); |
c6d75bc1 TS |
817 | } |
818 | ||
819 | string_list_append(&cmd_list, *argv[0]); | |
820 | ||
821 | /* | |
822 | * It could be an alias -- this works around the insanity | |
a907e1b6 AS |
823 | * of overriding "git log" with "git show" by having |
824 | * alias.log = show | |
825 | */ | |
c0562611 | 826 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
827 | break; |
828 | done_alias = 1; | |
829 | } | |
830 | ||
c6d75bc1 TS |
831 | string_list_clear(&cmd_list, 0); |
832 | ||
a907e1b6 AS |
833 | return done_alias; |
834 | } | |
835 | ||
3f2e2297 | 836 | int cmd_main(int argc, const char **argv) |
8e49d503 | 837 | { |
4dd47c3b | 838 | const char *cmd; |
8fa7975b | 839 | int done_help = 0; |
231af832 | 840 | |
650c4492 | 841 | cmd = argv[0]; |
2cd72b0b | 842 | if (!cmd) |
4dd47c3b | 843 | cmd = "git-help"; |
6854a8f5 JK |
844 | else { |
845 | const char *slash = find_last_dir_sep(cmd); | |
846 | if (slash) | |
847 | cmd = slash + 1; | |
848 | } | |
8e49d503 | 849 | |
578da039 KB |
850 | trace_command_performance(argv); |
851 | ||
231af832 LT |
852 | /* |
853 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
854 | * | |
855 | * - cannot take flags in between the "git" and the "xxxx". | |
856 | * - cannot execute it externally (since it would just do | |
857 | * the same thing over again) | |
858 | * | |
3f784a4d SS |
859 | * So we just directly call the builtin handler, and die if |
860 | * that one cannot handle it. | |
231af832 | 861 | */ |
ae021d87 | 862 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 863 | argv[0] = cmd; |
3f784a4d | 864 | handle_builtin(argc, argv); |
8aa8c140 | 865 | die(_("cannot handle %s as a builtin"), cmd); |
231af832 | 866 | } |
8e49d503 | 867 | |
231af832 | 868 | /* Look for flags.. */ |
6acbcb92 JS |
869 | argv++; |
870 | argc--; | |
4394efec | 871 | handle_options(&argv, &argc, NULL); |
413bc6d2 DS |
872 | |
873 | if (!argc) { | |
3d7e2d85 | 874 | /* The user didn't specify a command; give them help */ |
73e25e7c | 875 | commit_pager_choice(); |
8aa8c140 | 876 | printf(_("usage: %s\n\n"), git_usage_string); |
3d7e2d85 | 877 | list_common_cmds_help(); |
421a9769 | 878 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 879 | exit(1); |
97fc6c5f | 880 | } |
413bc6d2 DS |
881 | |
882 | if (!strcmp("--version", argv[0]) || !strcmp("-v", argv[0])) | |
883 | argv[0] = "version"; | |
884 | else if (!strcmp("--help", argv[0]) || !strcmp("-h", argv[0])) | |
885 | argv[0] = "help"; | |
886 | ||
6acbcb92 | 887 | cmd = argv[0]; |
231af832 LT |
888 | |
889 | /* | |
511707d4 | 890 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 891 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
892 | * environment, and the $(gitexecdir) from the Makefile at build |
893 | * time. | |
231af832 | 894 | */ |
e1464ca7 | 895 | setup_path(); |
8e49d503 | 896 | |
a025463b | 897 | while (1) { |
8fa7975b | 898 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 899 | if (errno != ENOENT) |
a025463b | 900 | break; |
a907e1b6 | 901 | if (was_alias) { |
fc045fe7 AS |
902 | fprintf(stderr, _("expansion of alias '%s' failed; " |
903 | "'%s' is not a git command\n"), | |
f3dd015c TT |
904 | cmd, argv[0]); |
905 | exit(1); | |
906 | } | |
a907e1b6 AS |
907 | if (!done_help) { |
908 | cmd = argv[0] = help_unknown_cmd(cmd); | |
909 | done_help = 1; | |
910 | } else | |
911 | break; | |
f3dd015c | 912 | } |
10b15b86 | 913 | |
fc045fe7 | 914 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 915 | cmd, strerror(errno)); |
8e49d503 AE |
916 | |
917 | return 1; | |
918 | } |