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Commit | Line | Data |
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85023577 | 1 | #include "builtin.h" |
b2141fc1 | 2 | #include "config.h" |
32a8f510 | 3 | #include "environment.h" |
d807c4a0 | 4 | #include "exec-cmd.h" |
f394e093 | 5 | #include "gettext.h" |
fd5c363d | 6 | #include "help.h" |
ca4eed70 | 7 | #include "pager.h" |
d8e96fd8 | 8 | #include "run-command.h" |
65b5f948 | 9 | #include "alias.h" |
cbeab747 | 10 | #include "replace-object.h" |
e38da487 | 11 | #include "setup.h" |
44451a2e | 12 | #include "attr.h" |
120ad2b0 | 13 | #include "shallow.h" |
74ea5c95 EN |
14 | #include "trace.h" |
15 | #include "trace2.h" | |
8e49d503 | 16 | |
007aa8d8 NTND |
17 | #define RUN_SETUP (1<<0) |
18 | #define RUN_SETUP_GENTLY (1<<1) | |
19 | #define USE_PAGER (1<<2) | |
20 | /* | |
21 | * require working tree to be present -- anything uses this needs | |
22 | * RUN_SETUP for reading from the configuration file. | |
23 | */ | |
24 | #define NEED_WORK_TREE (1<<3) | |
4002ec3d ÆAB |
25 | #define DELAY_PAGER_CONFIG (1<<4) |
26 | #define NO_PARSEOPT (1<<5) /* parse-options is not used */ | |
007aa8d8 NTND |
27 | |
28 | struct cmd_struct { | |
29 | const char *cmd; | |
30 | int (*fn)(int, const char **, const char *); | |
e9547947 | 31 | unsigned int option; |
007aa8d8 NTND |
32 | }; |
33 | ||
822a7d50 | 34 | const char git_usage_string[] = |
6b52f48b | 35 | N_("git [-v | --version] [-h | --help] [-C <path>] [-c <name>=<value>]\n" |
fc045fe7 | 36 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" |
7213c288 | 37 | " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" |
fc045fe7 | 38 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" |
4002ec3d | 39 | " [--config-env=<name>=<envvar>] <command> [<args>]"); |
822a7d50 | 40 | |
b7d96819 | 41 | const char git_more_info_string[] = |
ad5fe377 | 42 | N_("'git help -a' and 'git help -g' list available subcommands and some\n" |
73903d0b | 43 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
e55f36b8 PO |
44 | "to read about a specific subcommand or concept.\n" |
45 | "See 'git help git' for an overview of the system."); | |
b7d96819 | 46 | |
4e10738a | 47 | static int use_pager = -1; |
c0562611 | 48 | |
e5d7a619 | 49 | static void list_builtins(struct string_list *list, unsigned int exclude_option); |
8893fd95 | 50 | |
e11dca10 NTND |
51 | static void exclude_helpers_from_list(struct string_list *list) |
52 | { | |
53 | int i = 0; | |
54 | ||
55 | while (i < list->nr) { | |
56 | if (strstr(list->items[i].string, "--")) | |
57 | unsorted_string_list_delete_item(list, i, 0); | |
58 | else | |
59 | i++; | |
60 | } | |
61 | } | |
62 | ||
0089521c NTND |
63 | static int match_token(const char *spec, int len, const char *token) |
64 | { | |
65 | int token_len = strlen(token); | |
66 | ||
67 | return len == token_len && !strncmp(spec, token, token_len); | |
68 | } | |
69 | ||
70 | static int list_cmds(const char *spec) | |
71 | { | |
e5d7a619 NTND |
72 | struct string_list list = STRING_LIST_INIT_DUP; |
73 | int i; | |
83b0ecf3 JK |
74 | int nongit; |
75 | ||
76 | /* | |
77 | * Set up the repository so we can pick up any repo-level config (like | |
78 | * completion.commands). | |
79 | */ | |
80 | setup_git_directory_gently(&nongit); | |
e5d7a619 | 81 | |
0089521c NTND |
82 | while (*spec) { |
83 | const char *sep = strchrnul(spec, ','); | |
84 | int len = sep - spec; | |
85 | ||
86 | if (match_token(spec, len, "builtins")) | |
e5d7a619 | 87 | list_builtins(&list, 0); |
6bb2dc0b NTND |
88 | else if (match_token(spec, len, "main")) |
89 | list_all_main_cmds(&list); | |
90 | else if (match_token(spec, len, "others")) | |
91 | list_all_other_cmds(&list); | |
e11dca10 NTND |
92 | else if (match_token(spec, len, "nohelpers")) |
93 | exclude_helpers_from_list(&list); | |
3301d36b NTND |
94 | else if (match_token(spec, len, "alias")) |
95 | list_aliases(&list); | |
6532f374 NTND |
96 | else if (match_token(spec, len, "config")) |
97 | list_cmds_by_config(&list); | |
3c777767 NTND |
98 | else if (len > 5 && !strncmp(spec, "list-", 5)) { |
99 | struct strbuf sb = STRBUF_INIT; | |
100 | ||
101 | strbuf_add(&sb, spec + 5, len - 5); | |
102 | list_cmds_by_category(&list, sb.buf); | |
103 | strbuf_release(&sb); | |
104 | } | |
0089521c NTND |
105 | else |
106 | die(_("unsupported command listing type '%s'"), spec); | |
107 | spec += len; | |
108 | if (*spec == ',') | |
109 | spec++; | |
110 | } | |
e5d7a619 NTND |
111 | for (i = 0; i < list.nr; i++) |
112 | puts(list.items[i].string); | |
113 | string_list_clear(&list, 0); | |
0089521c NTND |
114 | return 0; |
115 | } | |
8893fd95 | 116 | |
3b335762 NTND |
117 | static void commit_pager_choice(void) |
118 | { | |
4e10738a JK |
119 | switch (use_pager) { |
120 | case 0: | |
121 | setenv("GIT_PAGER", "cat", 1); | |
122 | break; | |
123 | case 1: | |
124 | setup_pager(); | |
125 | break; | |
126 | default: | |
127 | break; | |
128 | } | |
129 | } | |
130 | ||
033fe3d9 MÅ |
131 | void setup_auto_pager(const char *cmd, int def) |
132 | { | |
133 | if (use_pager != -1 || pager_in_use()) | |
134 | return; | |
135 | use_pager = check_pager_config(cmd); | |
136 | if (use_pager == -1) | |
137 | use_pager = def; | |
138 | commit_pager_choice(); | |
139 | } | |
140 | ||
4b25d091 | 141 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 142 | { |
73546c08 | 143 | const char **orig_argv = *argv; |
4ab243a9 JS |
144 | |
145 | while (*argc > 0) { | |
146 | const char *cmd = (*argv)[0]; | |
147 | if (cmd[0] != '-') | |
148 | break; | |
149 | ||
6acbcb92 JS |
150 | /* |
151 | * For legacy reasons, the "version" and "help" | |
152 | * commands can be written with "--" prepended | |
153 | * to make them look like flags. | |
154 | */ | |
6b52f48b GF |
155 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "-h") || |
156 | !strcmp(cmd, "--version") || !strcmp(cmd, "-v")) | |
6acbcb92 JS |
157 | break; |
158 | ||
159 | /* | |
160 | * Check remaining flags. | |
161 | */ | |
ae021d87 | 162 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 163 | if (*cmd == '=') |
226c0ddd | 164 | git_set_exec_path(cmd + 1); |
6acbcb92 JS |
165 | else { |
166 | puts(git_exec_path()); | |
ee4512ed | 167 | trace2_cmd_name("_query_"); |
6acbcb92 JS |
168 | exit(0); |
169 | } | |
89a56bfb MH |
170 | } else if (!strcmp(cmd, "--html-path")) { |
171 | puts(system_path(GIT_HTML_PATH)); | |
ee4512ed | 172 | trace2_cmd_name("_query_"); |
89a56bfb | 173 | exit(0); |
f2dd8c37 JS |
174 | } else if (!strcmp(cmd, "--man-path")) { |
175 | puts(system_path(GIT_MAN_PATH)); | |
ee4512ed | 176 | trace2_cmd_name("_query_"); |
f2dd8c37 JS |
177 | exit(0); |
178 | } else if (!strcmp(cmd, "--info-path")) { | |
179 | puts(system_path(GIT_INFO_PATH)); | |
ee4512ed | 180 | trace2_cmd_name("_query_"); |
f2dd8c37 | 181 | exit(0); |
6acbcb92 | 182 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 183 | use_pager = 1; |
7213c288 | 184 | } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { |
4e10738a | 185 | use_pager = 0; |
463a849d MM |
186 | if (envchanged) |
187 | *envchanged = 1; | |
b0fa7ab5 | 188 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
6ebd1caf | 189 | read_replace_refs = 0; |
6476b38b CC |
190 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
191 | if (envchanged) | |
192 | *envchanged = 1; | |
6acbcb92 | 193 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 194 | if (*argc < 2) { |
986cd655 | 195 | fprintf(stderr, _("no directory given for '%s' option\n" ), "--git-dir"); |
c321f00d BG |
196 | usage(git_usage_string); |
197 | } | |
45b09794 | 198 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
199 | if (envchanged) |
200 | *envchanged = 1; | |
6acbcb92 JS |
201 | (*argv)++; |
202 | (*argc)--; | |
ae021d87 JK |
203 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
204 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
205 | if (envchanged) |
206 | *envchanged = 1; | |
a1bea2c1 JT |
207 | } else if (!strcmp(cmd, "--namespace")) { |
208 | if (*argc < 2) { | |
fc045fe7 | 209 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
210 | usage(git_usage_string); |
211 | } | |
212 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
213 | if (envchanged) | |
214 | *envchanged = 1; | |
215 | (*argv)++; | |
216 | (*argc)--; | |
ae021d87 JK |
217 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
218 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
219 | if (envchanged) |
220 | *envchanged = 1; | |
892c41b9 ML |
221 | } else if (!strcmp(cmd, "--work-tree")) { |
222 | if (*argc < 2) { | |
986cd655 | 223 | fprintf(stderr, _("no directory given for '%s' option\n" ), "--work-tree"); |
892c41b9 ML |
224 | usage(git_usage_string); |
225 | } | |
226 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
227 | if (envchanged) |
228 | *envchanged = 1; | |
892c41b9 ML |
229 | (*argv)++; |
230 | (*argc)--; | |
ae021d87 JK |
231 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
232 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
233 | if (envchanged) |
234 | *envchanged = 1; | |
6acbcb92 | 235 | } else if (!strcmp(cmd, "--bare")) { |
4d3ab44d | 236 | char *cwd = xgetcwd(); |
6adcca3f | 237 | is_bare_repository_cfg = 1; |
4d3ab44d RS |
238 | setenv(GIT_DIR_ENVIRONMENT, cwd, 0); |
239 | free(cwd); | |
2cd83d10 | 240 | setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); |
4394efec ML |
241 | if (envchanged) |
242 | *envchanged = 1; | |
8b1fa778 AR |
243 | } else if (!strcmp(cmd, "-c")) { |
244 | if (*argc < 2) { | |
fc045fe7 | 245 | fprintf(stderr, _("-c expects a configuration string\n" )); |
8b1fa778 AR |
246 | usage(git_usage_string); |
247 | } | |
2b64fc89 | 248 | git_config_push_parameter((*argv)[1]); |
8b1fa778 AR |
249 | (*argv)++; |
250 | (*argc)--; | |
c331551c PS |
251 | } else if (!strcmp(cmd, "--config-env")) { |
252 | if (*argc < 2) { | |
253 | fprintf(stderr, _("no config key given for --config-env\n" )); | |
254 | usage(git_usage_string); | |
255 | } | |
256 | git_config_push_env((*argv)[1]); | |
257 | (*argv)++; | |
258 | (*argc)--; | |
ce81b1da PS |
259 | } else if (skip_prefix(cmd, "--config-env=", &cmd)) { |
260 | git_config_push_env(cmd); | |
823ab40f JK |
261 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
262 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
263 | if (envchanged) | |
264 | *envchanged = 1; | |
265 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
266 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
267 | if (envchanged) | |
268 | *envchanged = 1; | |
bd30c2e4 NTND |
269 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
270 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
271 | if (envchanged) | |
272 | *envchanged = 1; | |
273 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
274 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
275 | if (envchanged) | |
276 | *envchanged = 1; | |
93d93537 NTND |
277 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
278 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
279 | if (envchanged) | |
280 | *envchanged = 1; | |
27344d6a JK |
281 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
282 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
283 | if (envchanged) | |
284 | *envchanged = 1; | |
6035d6aa NTND |
285 | } else if (!strcmp(cmd, "--shallow-file")) { |
286 | (*argv)++; | |
287 | (*argc)--; | |
6a2df51c | 288 | set_alternate_shallow_file(the_repository, (*argv)[0], 1); |
6035d6aa NTND |
289 | if (envchanged) |
290 | *envchanged = 1; | |
44e1e4d6 NR |
291 | } else if (!strcmp(cmd, "-C")) { |
292 | if (*argc < 2) { | |
986cd655 | 293 | fprintf(stderr, _("no directory given for '%s' option\n" ), "-C"); |
44e1e4d6 NR |
294 | usage(git_usage_string); |
295 | } | |
6a536e20 KN |
296 | if ((*argv)[1][0]) { |
297 | if (chdir((*argv)[1])) | |
fc045fe7 | 298 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
299 | if (envchanged) |
300 | *envchanged = 1; | |
301 | } | |
44e1e4d6 NR |
302 | (*argv)++; |
303 | (*argc)--; | |
0089521c | 304 | } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) { |
ee4512ed | 305 | trace2_cmd_name("_query_"); |
0089521c | 306 | if (!strcmp(cmd, "parseopt")) { |
e5d7a619 NTND |
307 | struct string_list list = STRING_LIST_INIT_DUP; |
308 | int i; | |
309 | ||
310 | list_builtins(&list, NO_PARSEOPT); | |
311 | for (i = 0; i < list.nr; i++) | |
312 | printf("%s ", list.items[i].string); | |
313 | string_list_clear(&list, 0); | |
0089521c NTND |
314 | exit(0); |
315 | } else { | |
316 | exit(list_cmds(cmd)); | |
317 | } | |
44451a2e JC |
318 | } else if (!strcmp(cmd, "--attr-source")) { |
319 | if (*argc < 2) { | |
320 | fprintf(stderr, _("no attribute source given for --attr-source\n" )); | |
321 | usage(git_usage_string); | |
322 | } | |
323 | setenv(GIT_ATTR_SOURCE_ENVIRONMENT, (*argv)[1], 1); | |
324 | if (envchanged) | |
325 | *envchanged = 1; | |
326 | (*argv)++; | |
327 | (*argc)--; | |
328 | } else if (skip_prefix(cmd, "--attr-source=", &cmd)) { | |
329 | set_git_attr_source(cmd); | |
330 | setenv(GIT_ATTR_SOURCE_ENVIRONMENT, cmd, 1); | |
331 | if (envchanged) | |
332 | *envchanged = 1; | |
6acbcb92 | 333 | } else { |
fc045fe7 | 334 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 335 | usage(git_usage_string); |
6acbcb92 | 336 | } |
4ab243a9 JS |
337 | |
338 | (*argv)++; | |
339 | (*argc)--; | |
4ab243a9 | 340 | } |
73546c08 | 341 | return (*argv) - orig_argv; |
4ab243a9 JS |
342 | } |
343 | ||
2b11e317 JS |
344 | static int handle_alias(int *argcp, const char ***argv) |
345 | { | |
af05d679 | 346 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 347 | int count, option_count; |
4b25d091 | 348 | const char **new_argv; |
94351118 JK |
349 | const char *alias_command; |
350 | char *alias_string; | |
0347a8c7 ML |
351 | |
352 | alias_command = (*argv)[0]; | |
94351118 | 353 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 354 | if (alias_string) { |
a9a60b94 RV |
355 | if (*argcp > 1 && !strcmp((*argv)[1], "-h")) |
356 | fprintf_ln(stderr, _("'%s' is aliased to '%s'"), | |
357 | alias_command, alias_string); | |
dfd42a3c | 358 | if (alias_string[0] == '!') { |
850d2fec | 359 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
360 | int nongit_ok; |
361 | ||
362 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
363 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 364 | |
030149a4 | 365 | commit_pager_choice(); |
7f51f8bc | 366 | |
850d2fec | 367 | child.use_shell = 1; |
c0d73a59 TA |
368 | child.clean_on_exit = 1; |
369 | child.wait_after_clean = 1; | |
ee4512ed | 370 | child.trace2_child_class = "shell_alias"; |
ef8d7ac4 JK |
371 | strvec_push(&child.args, alias_string + 1); |
372 | strvec_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 373 | |
d70a9eb6 | 374 | trace2_cmd_alias(alias_command, child.args.v); |
ee4512ed | 375 | trace2_cmd_list_config(); |
3d3adaad | 376 | trace2_cmd_list_env_vars(); |
ee4512ed JH |
377 | trace2_cmd_name("_run_shell_alias_"); |
378 | ||
850d2fec | 379 | ret = run_command(&child); |
7f51f8bc EFL |
380 | if (ret >= 0) /* normal exit */ |
381 | exit(ret); | |
382 | ||
8aa8c140 NTND |
383 | die_errno(_("while expanding alias '%s': '%s'"), |
384 | alias_command, alias_string + 1); | |
dfd42a3c | 385 | } |
0347a8c7 | 386 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 387 | if (count < 0) |
8aa8c140 | 388 | die(_("bad alias.%s string: %s"), alias_command, |
a7412ae1 | 389 | _(split_cmdline_strerror(count))); |
4394efec ML |
390 | option_count = handle_options(&new_argv, &count, &envchanged); |
391 | if (envchanged) | |
8aa8c140 NTND |
392 | die(_("alias '%s' changes environment variables.\n" |
393 | "You can use '!git' in the alias to do this"), | |
394 | alias_command); | |
7bd97d6d | 395 | MOVE_ARRAY(new_argv - option_count, new_argv, count); |
0347a8c7 ML |
396 | new_argv -= option_count; |
397 | ||
398 | if (count < 1) | |
8aa8c140 | 399 | die(_("empty alias for %s"), alias_command); |
0347a8c7 ML |
400 | |
401 | if (!strcmp(alias_command, new_argv[0])) | |
8aa8c140 | 402 | die(_("recursive alias: %s"), alias_command); |
0347a8c7 | 403 | |
b319ce4c | 404 | trace_argv_printf(new_argv, |
6ce4e61f CC |
405 | "trace: alias expansion: %s =>", |
406 | alias_command); | |
575ba9d6 | 407 | |
2756ca43 | 408 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 409 | /* insert after command name */ |
7bd97d6d | 410 | COPY_ARRAY(new_argv + count, *argv + 1, *argcp); |
2b11e317 | 411 | |
ee4512ed JH |
412 | trace2_cmd_alias(alias_command, new_argv); |
413 | trace2_cmd_list_config(); | |
3d3adaad | 414 | trace2_cmd_list_env_vars(); |
ee4512ed | 415 | |
0347a8c7 ML |
416 | *argv = new_argv; |
417 | *argcp += count - 1; | |
2b11e317 | 418 | |
0347a8c7 | 419 | ret = 1; |
2b11e317 JS |
420 | } |
421 | ||
47e5c0ca JS |
422 | errno = saved_errno; |
423 | ||
2b11e317 JS |
424 | return ret; |
425 | } | |
426 | ||
f172f334 | 427 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 428 | { |
99caeed0 | 429 | int status, help; |
0f157315 | 430 | struct stat st; |
47d0b4ff | 431 | const char *prefix; |
e5b17bda | 432 | int run_setup = (p->option & (RUN_SETUP | RUN_SETUP_GENTLY)); |
47d0b4ff | 433 | |
99caeed0 | 434 | help = argc == 2 && !strcmp(argv[1], "-h"); |
e5b17bda LD |
435 | if (help && (run_setup & RUN_SETUP)) |
436 | /* demote to GENTLY to allow 'git cmd -h' outside repo */ | |
437 | run_setup = RUN_SETUP_GENTLY; | |
438 | ||
439 | if (run_setup & RUN_SETUP) { | |
440 | prefix = setup_git_directory(); | |
441 | } else if (run_setup & RUN_SETUP_GENTLY) { | |
442 | int nongit_ok; | |
443 | prefix = setup_git_directory_gently(&nongit_ok); | |
444 | } else { | |
445 | prefix = NULL; | |
99caeed0 | 446 | } |
9725c8dd | 447 | assert(!prefix || *prefix); |
e5b17bda LD |
448 | precompose_argv_prefix(argc, argv, NULL); |
449 | if (use_pager == -1 && run_setup && | |
450 | !(p->option & DELAY_PAGER_CONFIG)) | |
451 | use_pager = check_pager_config(p->cmd); | |
452 | if (use_pager == -1 && p->option & USE_PAGER) | |
453 | use_pager = 1; | |
454 | if (run_setup && startup_info->have_repository) | |
455 | /* get_git_dir() may set up repo, avoid that */ | |
17ab64e1 | 456 | trace_repo_setup(); |
4e10738a JK |
457 | commit_pager_choice(); |
458 | ||
99caeed0 | 459 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
460 | setup_work_tree(); |
461 | ||
b319ce4c | 462 | trace_argv_printf(argv, "trace: built-in: git"); |
ee4512ed JH |
463 | trace2_cmd_name(p->cmd); |
464 | trace2_cmd_list_config(); | |
3d3adaad | 465 | trace2_cmd_list_env_vars(); |
47d0b4ff | 466 | |
f8adbec9 | 467 | validate_cache_entries(the_repository->index); |
0f157315 | 468 | status = p->fn(argc, argv, prefix); |
f8adbec9 | 469 | validate_cache_entries(the_repository->index); |
8616a2d0 | 470 | |
0f157315 | 471 | if (status) |
47e3de0e | 472 | return status; |
0f157315 LT |
473 | |
474 | /* Somebody closed stdout? */ | |
475 | if (fstat(fileno(stdout), &st)) | |
476 | return 0; | |
477 | /* Ignore write errors for pipes and sockets.. */ | |
478 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
479 | return 0; | |
480 | ||
481 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 482 | if (fflush(stdout)) |
8aa8c140 | 483 | die_errno(_("write failure on standard output")); |
0227f988 | 484 | if (ferror(stdout)) |
8aa8c140 | 485 | die(_("unknown write failure on standard output")); |
0227f988 | 486 | if (fclose(stdout)) |
8aa8c140 | 487 | die_errno(_("close failed on standard output")); |
0f157315 | 488 | return 0; |
47d0b4ff LT |
489 | } |
490 | ||
c6127fa3 SS |
491 | static struct cmd_struct commands[] = { |
492 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 493 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
66fa6e8e | 494 | { "annotate", cmd_annotate, RUN_SETUP }, |
c6127fa3 | 495 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 496 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
73fce294 | 497 | { "bisect", cmd_bisect, RUN_SETUP }, |
c6127fa3 | 498 | { "blame", cmd_blame, RUN_SETUP }, |
d74b541e | 499 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
d7a5649c | 500 | { "bugreport", cmd_bugreport, RUN_SETUP_GENTLY }, |
66fa6e8e | 501 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
502 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
503 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
504 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
505 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 506 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 507 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
e9e8adf1 | 508 | { "checkout--worker", cmd_checkout__worker, |
4002ec3d | 509 | RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
510 | { "checkout-index", cmd_checkout_index, |
511 | RUN_SETUP | NEED_WORK_TREE}, | |
512 | { "cherry", cmd_cherry, RUN_SETUP }, | |
513 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
514 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 515 | { "clone", cmd_clone }, |
c6127fa3 SS |
516 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
517 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
4ce58ee3 | 518 | { "commit-graph", cmd_commit_graph, RUN_SETUP }, |
66fa6e8e | 519 | { "commit-tree", cmd_commit_tree, RUN_SETUP }, |
32888b8f | 520 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 521 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 522 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
b5dd96b7 JK |
523 | { "credential-cache", cmd_credential_cache }, |
524 | { "credential-cache--daemon", cmd_credential_cache_daemon }, | |
525 | { "credential-store", cmd_credential_store }, | |
c6127fa3 | 526 | { "describe", cmd_describe, RUN_SETUP }, |
6783fd3c | 527 | { "diagnose", cmd_diagnose, RUN_SETUP_GENTLY }, |
e9547947 NTND |
528 | { "diff", cmd_diff, NO_PARSEOPT }, |
529 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
530 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
531 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
20de316e | 532 | { "difftool", cmd_difftool, RUN_SETUP_GENTLY }, |
c6127fa3 | 533 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
a006f875 | 534 | { "fast-import", cmd_fast_import, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 535 | { "fetch", cmd_fetch, RUN_SETUP }, |
e9547947 | 536 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
537 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
538 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
4950b2a2 | 539 | { "for-each-repo", cmd_for_each_repo, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
540 | { "format-patch", cmd_format_patch, RUN_SETUP }, |
541 | { "fsck", cmd_fsck, RUN_SETUP }, | |
542 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
bb61a962 | 543 | { "fsmonitor--daemon", cmd_fsmonitor__daemon, RUN_SETUP }, |
c6127fa3 | 544 | { "gc", cmd_gc, RUN_SETUP }, |
e9547947 | 545 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 546 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
547 | { "hash-object", cmd_hash_object }, |
548 | { "help", cmd_help }, | |
96e7225b | 549 | { "hook", cmd_hook, RUN_SETUP }, |
e9547947 | 550 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
551 | { "init", cmd_init_db }, |
552 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 553 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 554 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 555 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
556 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
557 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
66fa6e8e | 558 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY }, |
e9547947 | 559 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, |
03509544 | 560 | { "maintenance", cmd_maintenance, RUN_SETUP }, |
c6127fa3 SS |
561 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
562 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
563 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
564 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
565 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
566 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
567 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
568 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
569 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
6ec755a0 | 570 | { "merge-tree", cmd_merge_tree, RUN_SETUP }, |
66fa6e8e | 571 | { "mktag", cmd_mktag, RUN_SETUP }, |
c6127fa3 | 572 | { "mktree", cmd_mktree, RUN_SETUP }, |
73ff4ad0 | 573 | { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP }, |
c6127fa3 SS |
574 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, |
575 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
576 | { "notes", cmd_notes, RUN_SETUP }, | |
577 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 578 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 579 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 580 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
581 | { "pickaxe", cmd_blame, RUN_SETUP }, |
582 | { "prune", cmd_prune, RUN_SETUP }, | |
583 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 584 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 585 | { "push", cmd_push, RUN_SETUP }, |
348ae56c | 586 | { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER }, |
4002ec3d | 587 | { "read-tree", cmd_read_tree, RUN_SETUP }, |
80dfc924 | 588 | { "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
589 | { "receive-pack", cmd_receive_pack }, |
590 | { "reflog", cmd_reflog, RUN_SETUP }, | |
591 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
592 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
593 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
594 | { "repack", cmd_repack, RUN_SETUP }, |
595 | { "replace", cmd_replace, RUN_SETUP }, | |
596 | { "rerere", cmd_rerere, RUN_SETUP }, | |
597 | { "reset", cmd_reset, RUN_SETUP }, | |
46e91b66 | 598 | { "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 NTND |
599 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
600 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
601 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
602 | { "rm", cmd_rm, RUN_SETUP }, | |
603 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
604 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, | |
605 | { "show", cmd_show, RUN_SETUP }, | |
606 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
88a09a55 | 607 | { "show-index", cmd_show_index, RUN_SETUP_GENTLY }, |
c6127fa3 | 608 | { "show-ref", cmd_show_ref, RUN_SETUP }, |
24fc2cde | 609 | { "sparse-checkout", cmd_sparse_checkout, RUN_SETUP }, |
c6127fa3 | 610 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, |
8a2cd3f5 | 611 | { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
612 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, |
613 | { "stripspace", cmd_stripspace }, | |
f5a6be9d | 614 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP }, |
d787d311 | 615 | { "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 616 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 617 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
618 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
619 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
620 | { "update-index", cmd_update_index, RUN_SETUP }, |
621 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
622 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
623 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
624 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
a3d6b53e | 625 | { "upload-pack", cmd_upload_pack }, |
e9547947 | 626 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
d07b00b7 | 627 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
628 | { "verify-pack", cmd_verify_pack }, |
629 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
630 | { "version", cmd_version }, | |
631 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
398c4ff5 | 632 | { "worktree", cmd_worktree, RUN_SETUP }, |
c6127fa3 SS |
633 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
634 | }; | |
635 | ||
c4f901d1 | 636 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
637 | { |
638 | int i; | |
639 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 640 | struct cmd_struct *p = commands + i; |
c6127fa3 | 641 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 642 | return p; |
c6127fa3 | 643 | } |
c4f901d1 SV |
644 | return NULL; |
645 | } | |
646 | ||
647 | int is_builtin(const char *s) | |
648 | { | |
649 | return !!get_builtin(s); | |
c6127fa3 SS |
650 | } |
651 | ||
e5d7a619 | 652 | static void list_builtins(struct string_list *out, unsigned int exclude_option) |
8893fd95 JK |
653 | { |
654 | int i; | |
e9547947 NTND |
655 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
656 | if (exclude_option && | |
657 | (commands[i].option & exclude_option)) | |
658 | continue; | |
e5d7a619 | 659 | string_list_append(out, commands[i].cmd); |
e9547947 | 660 | } |
8893fd95 JK |
661 | } |
662 | ||
722fc374 JS |
663 | void load_builtin_commands(const char *prefix, struct cmdnames *cmds) |
664 | { | |
665 | const char *name; | |
666 | int i; | |
667 | ||
668 | /* | |
669 | * Callers can ask for a subset of the commands based on a certain | |
670 | * prefix, which is then dropped from the added names. The names in | |
671 | * the `commands[]` array do not have the `git-` prefix, though, | |
672 | * therefore we must expect the `prefix` to at least start with `git-`. | |
673 | */ | |
674 | if (!skip_prefix(prefix, "git-", &prefix)) | |
675 | BUG("prefix '%s' must start with 'git-'", prefix); | |
676 | ||
677 | for (i = 0; i < ARRAY_SIZE(commands); i++) | |
678 | if (skip_prefix(commands[i].cmd, prefix, &name)) | |
679 | add_cmdname(cmds, name, strlen(name)); | |
680 | } | |
681 | ||
63ca1c09 AK |
682 | #ifdef STRIP_EXTENSION |
683 | static void strip_extension(const char **argv) | |
684 | { | |
685 | size_t len; | |
686 | ||
687 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
688 | argv[0] = xmemdupz(argv[0], len); | |
689 | } | |
690 | #else | |
691 | #define strip_extension(cmd) | |
692 | #endif | |
693 | ||
3f784a4d | 694 | static void handle_builtin(int argc, const char **argv) |
231af832 | 695 | { |
ef8d7ac4 | 696 | struct strvec args = STRVEC_INIT; |
63ca1c09 | 697 | const char *cmd; |
c4f901d1 | 698 | struct cmd_struct *builtin; |
23326d14 | 699 | |
63ca1c09 AK |
700 | strip_extension(argv); |
701 | cmd = argv[0]; | |
231af832 | 702 | |
2c6b6d9f | 703 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 704 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
705 | int i; |
706 | ||
1cd95087 LT |
707 | argv[1] = argv[0]; |
708 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
709 | |
710 | for (i = 0; i < argc; i++) { | |
ef8d7ac4 | 711 | strvec_push(&args, argv[i]); |
2c6b6d9f | 712 | if (!i) |
ef8d7ac4 | 713 | strvec_push(&args, "--exclude-guides"); |
2c6b6d9f RT |
714 | } |
715 | ||
716 | argc++; | |
d70a9eb6 | 717 | argv = args.v; |
1cd95087 LT |
718 | } |
719 | ||
c4f901d1 | 720 | builtin = get_builtin(cmd); |
441981bc JH |
721 | if (builtin) |
722 | exit(run_builtin(builtin, argc, argv)); | |
ef8d7ac4 | 723 | strvec_clear(&args); |
231af832 LT |
724 | } |
725 | ||
7550be0a JH |
726 | static void execv_dashed_external(const char **argv) |
727 | { | |
2b296c93 | 728 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 729 | int status; |
7550be0a | 730 | |
595d59e2 | 731 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 732 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
733 | commit_pager_choice(); |
734 | ||
ef8d7ac4 JK |
735 | strvec_pushf(&cmd.args, "git-%s", argv[0]); |
736 | strvec_pushv(&cmd.args, argv + 1); | |
2b296c93 | 737 | cmd.clean_on_exit = 1; |
46df6906 | 738 | cmd.wait_after_clean = 1; |
2b296c93 | 739 | cmd.silent_exec_failure = 1; |
ee4512ed | 740 | cmd.trace2_child_class = "dashed"; |
7550be0a | 741 | |
ee4512ed JH |
742 | trace2_cmd_name("_run_dashed_"); |
743 | ||
744 | /* | |
745 | * The code in run_command() logs trace2 child_start/child_exit | |
746 | * events, so we do not need to report exec/exec_result events here. | |
747 | */ | |
d70a9eb6 | 748 | trace_argv_printf(cmd.args.v, "trace: exec:"); |
7550be0a | 749 | |
d8e96fd8 | 750 | /* |
246f0ede JK |
751 | * If we fail because the command is not found, it is |
752 | * OK to return. Otherwise, we just pass along the status code, | |
753 | * or our usual generic code if we were not even able to exec | |
754 | * the program. | |
d8e96fd8 | 755 | */ |
2b296c93 | 756 | status = run_command(&cmd); |
ee4512ed JH |
757 | |
758 | /* | |
759 | * If the child process ran and we are now going to exit, emit a | |
760 | * generic string as our trace2 command verb to indicate that we | |
761 | * launched a dashed command. | |
762 | */ | |
246f0ede | 763 | if (status >= 0) |
5709e036 | 764 | exit(status); |
246f0ede JK |
765 | else if (errno != ENOENT) |
766 | exit(128); | |
7550be0a JH |
767 | } |
768 | ||
a907e1b6 AS |
769 | static int run_argv(int *argcp, const char ***argv) |
770 | { | |
771 | int done_alias = 0; | |
c6d75bc1 | 772 | struct string_list cmd_list = STRING_LIST_INIT_NODUP; |
82f71d9a | 773 | struct string_list_item *seen; |
a907e1b6 AS |
774 | |
775 | while (1) { | |
441981bc JH |
776 | /* |
777 | * If we tried alias and futzed with our environment, | |
778 | * it no longer is safe to invoke builtins directly in | |
779 | * general. We have to spawn them as dashed externals. | |
780 | * | |
781 | * NEEDSWORK: if we can figure out cases | |
782 | * where it is safe to do, we can avoid spawning a new | |
783 | * process. | |
784 | */ | |
785 | if (!done_alias) | |
786 | handle_builtin(*argcp, *argv); | |
ee4512ed | 787 | else if (get_builtin(**argv)) { |
0e906739 | 788 | struct child_process cmd = CHILD_PROCESS_INIT; |
ee4512ed JH |
789 | int i; |
790 | ||
791 | /* | |
792 | * The current process is committed to launching a | |
793 | * child process to run the command named in (**argv) | |
794 | * and exiting. Log a generic string as the trace2 | |
795 | * command verb to indicate this. Note that the child | |
796 | * process will log the actual verb when it runs. | |
797 | */ | |
798 | trace2_cmd_name("_run_git_alias_"); | |
799 | ||
ee4512ed JH |
800 | commit_pager_choice(); |
801 | ||
0e906739 | 802 | strvec_push(&cmd.args, "git"); |
ee4512ed | 803 | for (i = 0; i < *argcp; i++) |
0e906739 | 804 | strvec_push(&cmd.args, (*argv)[i]); |
ee4512ed | 805 | |
0e906739 | 806 | trace_argv_printf(cmd.args.v, "trace: exec:"); |
ee4512ed JH |
807 | |
808 | /* | |
809 | * if we fail because the command is not found, it is | |
810 | * OK to return. Otherwise, we just pass along the status code. | |
811 | */ | |
0e906739 RS |
812 | cmd.silent_exec_failure = 1; |
813 | cmd.clean_on_exit = 1; | |
814 | cmd.wait_after_clean = 1; | |
815 | cmd.trace2_child_class = "git_alias"; | |
816 | i = run_command(&cmd); | |
ee4512ed JH |
817 | if (i >= 0 || errno != ENOENT) |
818 | exit(i); | |
819 | die("could not execute builtin %s", **argv); | |
820 | } | |
ee4512ed | 821 | |
a907e1b6 AS |
822 | /* .. then try the external ones */ |
823 | execv_dashed_external(*argv); | |
824 | ||
82f71d9a TS |
825 | seen = unsorted_string_list_lookup(&cmd_list, *argv[0]); |
826 | if (seen) { | |
827 | int i; | |
828 | struct strbuf sb = STRBUF_INIT; | |
829 | for (i = 0; i < cmd_list.nr; i++) { | |
830 | struct string_list_item *item = &cmd_list.items[i]; | |
831 | ||
832 | strbuf_addf(&sb, "\n %s", item->string); | |
833 | if (item == seen) | |
834 | strbuf_addstr(&sb, " <=="); | |
835 | else if (i == cmd_list.nr - 1) | |
836 | strbuf_addstr(&sb, " ==>"); | |
837 | } | |
c6d75bc1 | 838 | die(_("alias loop detected: expansion of '%s' does" |
82f71d9a | 839 | " not terminate:%s"), cmd_list.items[0].string, sb.buf); |
c6d75bc1 TS |
840 | } |
841 | ||
842 | string_list_append(&cmd_list, *argv[0]); | |
843 | ||
844 | /* | |
845 | * It could be an alias -- this works around the insanity | |
a907e1b6 AS |
846 | * of overriding "git log" with "git show" by having |
847 | * alias.log = show | |
848 | */ | |
c0562611 | 849 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
850 | break; |
851 | done_alias = 1; | |
852 | } | |
853 | ||
c6d75bc1 TS |
854 | string_list_clear(&cmd_list, 0); |
855 | ||
a907e1b6 AS |
856 | return done_alias; |
857 | } | |
858 | ||
3f2e2297 | 859 | int cmd_main(int argc, const char **argv) |
8e49d503 | 860 | { |
4dd47c3b | 861 | const char *cmd; |
8fa7975b | 862 | int done_help = 0; |
231af832 | 863 | |
650c4492 | 864 | cmd = argv[0]; |
2cd72b0b | 865 | if (!cmd) |
4dd47c3b | 866 | cmd = "git-help"; |
6854a8f5 JK |
867 | else { |
868 | const char *slash = find_last_dir_sep(cmd); | |
869 | if (slash) | |
870 | cmd = slash + 1; | |
871 | } | |
8e49d503 | 872 | |
578da039 KB |
873 | trace_command_performance(argv); |
874 | ||
231af832 LT |
875 | /* |
876 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
877 | * | |
878 | * - cannot take flags in between the "git" and the "xxxx". | |
879 | * - cannot execute it externally (since it would just do | |
880 | * the same thing over again) | |
881 | * | |
3f784a4d SS |
882 | * So we just directly call the builtin handler, and die if |
883 | * that one cannot handle it. | |
231af832 | 884 | */ |
ae021d87 | 885 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 886 | argv[0] = cmd; |
3f784a4d | 887 | handle_builtin(argc, argv); |
8aa8c140 | 888 | die(_("cannot handle %s as a builtin"), cmd); |
231af832 | 889 | } |
8e49d503 | 890 | |
231af832 | 891 | /* Look for flags.. */ |
6acbcb92 JS |
892 | argv++; |
893 | argc--; | |
4394efec | 894 | handle_options(&argv, &argc, NULL); |
413bc6d2 DS |
895 | |
896 | if (!argc) { | |
3d7e2d85 | 897 | /* The user didn't specify a command; give them help */ |
73e25e7c | 898 | commit_pager_choice(); |
8aa8c140 | 899 | printf(_("usage: %s\n\n"), git_usage_string); |
3d7e2d85 | 900 | list_common_cmds_help(); |
421a9769 | 901 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 902 | exit(1); |
97fc6c5f | 903 | } |
413bc6d2 DS |
904 | |
905 | if (!strcmp("--version", argv[0]) || !strcmp("-v", argv[0])) | |
906 | argv[0] = "version"; | |
907 | else if (!strcmp("--help", argv[0]) || !strcmp("-h", argv[0])) | |
908 | argv[0] = "help"; | |
909 | ||
6acbcb92 | 910 | cmd = argv[0]; |
231af832 LT |
911 | |
912 | /* | |
511707d4 | 913 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 914 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
915 | * environment, and the $(gitexecdir) from the Makefile at build |
916 | * time. | |
231af832 | 917 | */ |
e1464ca7 | 918 | setup_path(); |
8e49d503 | 919 | |
a025463b | 920 | while (1) { |
8fa7975b | 921 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 922 | if (errno != ENOENT) |
a025463b | 923 | break; |
a907e1b6 | 924 | if (was_alias) { |
fc045fe7 AS |
925 | fprintf(stderr, _("expansion of alias '%s' failed; " |
926 | "'%s' is not a git command\n"), | |
f3dd015c TT |
927 | cmd, argv[0]); |
928 | exit(1); | |
929 | } | |
a907e1b6 AS |
930 | if (!done_help) { |
931 | cmd = argv[0] = help_unknown_cmd(cmd); | |
932 | done_help = 1; | |
933 | } else | |
934 | break; | |
f3dd015c | 935 | } |
10b15b86 | 936 | |
fc045fe7 | 937 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 938 | cmd, strerror(errno)); |
8e49d503 AE |
939 | |
940 | return 1; | |
941 | } |