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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) | |
17 | #define SUPPORT_SUPER_PREFIX (1<<4) | |
18 | #define DELAY_PAGER_CONFIG (1<<5) | |
e9547947 | 19 | #define NO_PARSEOPT (1<<6) /* parse-options is not used */ |
007aa8d8 NTND |
20 | |
21 | struct cmd_struct { | |
22 | const char *cmd; | |
23 | int (*fn)(int, const char **, const char *); | |
e9547947 | 24 | unsigned int option; |
007aa8d8 NTND |
25 | }; |
26 | ||
822a7d50 | 27 | const char git_usage_string[] = |
fc045fe7 AS |
28 | N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n" |
29 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" | |
7213c288 | 30 | " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" |
fc045fe7 | 31 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" |
ce81b1da | 32 | " [--super-prefix=<path>] [--config-env=<name>=<envvar>]\n" |
fc045fe7 | 33 | " <command> [<args>]"); |
822a7d50 | 34 | |
b7d96819 | 35 | const char git_more_info_string[] = |
ad5fe377 | 36 | N_("'git help -a' and 'git help -g' list available subcommands and some\n" |
73903d0b | 37 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
e55f36b8 PO |
38 | "to read about a specific subcommand or concept.\n" |
39 | "See 'git help git' for an overview of the system."); | |
b7d96819 | 40 | |
4e10738a | 41 | static int use_pager = -1; |
c0562611 | 42 | |
e5d7a619 | 43 | static void list_builtins(struct string_list *list, unsigned int exclude_option); |
8893fd95 | 44 | |
e11dca10 NTND |
45 | static void exclude_helpers_from_list(struct string_list *list) |
46 | { | |
47 | int i = 0; | |
48 | ||
49 | while (i < list->nr) { | |
50 | if (strstr(list->items[i].string, "--")) | |
51 | unsorted_string_list_delete_item(list, i, 0); | |
52 | else | |
53 | i++; | |
54 | } | |
55 | } | |
56 | ||
0089521c NTND |
57 | static int match_token(const char *spec, int len, const char *token) |
58 | { | |
59 | int token_len = strlen(token); | |
60 | ||
61 | return len == token_len && !strncmp(spec, token, token_len); | |
62 | } | |
63 | ||
64 | static int list_cmds(const char *spec) | |
65 | { | |
e5d7a619 NTND |
66 | struct string_list list = STRING_LIST_INIT_DUP; |
67 | int i; | |
83b0ecf3 JK |
68 | int nongit; |
69 | ||
70 | /* | |
71 | * Set up the repository so we can pick up any repo-level config (like | |
72 | * completion.commands). | |
73 | */ | |
74 | setup_git_directory_gently(&nongit); | |
e5d7a619 | 75 | |
0089521c NTND |
76 | while (*spec) { |
77 | const char *sep = strchrnul(spec, ','); | |
78 | int len = sep - spec; | |
79 | ||
80 | if (match_token(spec, len, "builtins")) | |
e5d7a619 | 81 | list_builtins(&list, 0); |
6bb2dc0b NTND |
82 | else if (match_token(spec, len, "main")) |
83 | list_all_main_cmds(&list); | |
84 | else if (match_token(spec, len, "others")) | |
85 | list_all_other_cmds(&list); | |
e11dca10 NTND |
86 | else if (match_token(spec, len, "nohelpers")) |
87 | exclude_helpers_from_list(&list); | |
3301d36b NTND |
88 | else if (match_token(spec, len, "alias")) |
89 | list_aliases(&list); | |
6532f374 NTND |
90 | else if (match_token(spec, len, "config")) |
91 | list_cmds_by_config(&list); | |
3c777767 NTND |
92 | else if (len > 5 && !strncmp(spec, "list-", 5)) { |
93 | struct strbuf sb = STRBUF_INIT; | |
94 | ||
95 | strbuf_add(&sb, spec + 5, len - 5); | |
96 | list_cmds_by_category(&list, sb.buf); | |
97 | strbuf_release(&sb); | |
98 | } | |
0089521c NTND |
99 | else |
100 | die(_("unsupported command listing type '%s'"), spec); | |
101 | spec += len; | |
102 | if (*spec == ',') | |
103 | spec++; | |
104 | } | |
e5d7a619 NTND |
105 | for (i = 0; i < list.nr; i++) |
106 | puts(list.items[i].string); | |
107 | string_list_clear(&list, 0); | |
0089521c NTND |
108 | return 0; |
109 | } | |
8893fd95 | 110 | |
3b335762 NTND |
111 | static void commit_pager_choice(void) |
112 | { | |
4e10738a JK |
113 | switch (use_pager) { |
114 | case 0: | |
115 | setenv("GIT_PAGER", "cat", 1); | |
116 | break; | |
117 | case 1: | |
118 | setup_pager(); | |
119 | break; | |
120 | default: | |
121 | break; | |
122 | } | |
123 | } | |
124 | ||
033fe3d9 MÅ |
125 | void setup_auto_pager(const char *cmd, int def) |
126 | { | |
127 | if (use_pager != -1 || pager_in_use()) | |
128 | return; | |
129 | use_pager = check_pager_config(cmd); | |
130 | if (use_pager == -1) | |
131 | use_pager = def; | |
132 | commit_pager_choice(); | |
133 | } | |
134 | ||
4b25d091 | 135 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 136 | { |
73546c08 | 137 | const char **orig_argv = *argv; |
4ab243a9 JS |
138 | |
139 | while (*argc > 0) { | |
140 | const char *cmd = (*argv)[0]; | |
141 | if (cmd[0] != '-') | |
142 | break; | |
143 | ||
6acbcb92 JS |
144 | /* |
145 | * For legacy reasons, the "version" and "help" | |
146 | * commands can be written with "--" prepended | |
147 | * to make them look like flags. | |
148 | */ | |
149 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) | |
150 | break; | |
151 | ||
152 | /* | |
153 | * Check remaining flags. | |
154 | */ | |
ae021d87 | 155 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 156 | if (*cmd == '=') |
226c0ddd | 157 | git_set_exec_path(cmd + 1); |
6acbcb92 JS |
158 | else { |
159 | puts(git_exec_path()); | |
ee4512ed | 160 | trace2_cmd_name("_query_"); |
6acbcb92 JS |
161 | exit(0); |
162 | } | |
89a56bfb MH |
163 | } else if (!strcmp(cmd, "--html-path")) { |
164 | puts(system_path(GIT_HTML_PATH)); | |
ee4512ed | 165 | trace2_cmd_name("_query_"); |
89a56bfb | 166 | exit(0); |
f2dd8c37 JS |
167 | } else if (!strcmp(cmd, "--man-path")) { |
168 | puts(system_path(GIT_MAN_PATH)); | |
ee4512ed | 169 | trace2_cmd_name("_query_"); |
f2dd8c37 JS |
170 | exit(0); |
171 | } else if (!strcmp(cmd, "--info-path")) { | |
172 | puts(system_path(GIT_INFO_PATH)); | |
ee4512ed | 173 | trace2_cmd_name("_query_"); |
f2dd8c37 | 174 | exit(0); |
6acbcb92 | 175 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 176 | use_pager = 1; |
7213c288 | 177 | } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { |
4e10738a | 178 | use_pager = 0; |
463a849d MM |
179 | if (envchanged) |
180 | *envchanged = 1; | |
b0fa7ab5 | 181 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
6ebd1caf | 182 | read_replace_refs = 0; |
6476b38b CC |
183 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
184 | if (envchanged) | |
185 | *envchanged = 1; | |
6acbcb92 | 186 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 187 | if (*argc < 2) { |
fc045fe7 | 188 | fprintf(stderr, _("no directory given for --git-dir\n" )); |
c321f00d BG |
189 | usage(git_usage_string); |
190 | } | |
45b09794 | 191 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
192 | if (envchanged) |
193 | *envchanged = 1; | |
6acbcb92 JS |
194 | (*argv)++; |
195 | (*argc)--; | |
ae021d87 JK |
196 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
197 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
198 | if (envchanged) |
199 | *envchanged = 1; | |
a1bea2c1 JT |
200 | } else if (!strcmp(cmd, "--namespace")) { |
201 | if (*argc < 2) { | |
fc045fe7 | 202 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
203 | usage(git_usage_string); |
204 | } | |
205 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
206 | if (envchanged) | |
207 | *envchanged = 1; | |
208 | (*argv)++; | |
209 | (*argc)--; | |
ae021d87 JK |
210 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
211 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
212 | if (envchanged) |
213 | *envchanged = 1; | |
892c41b9 ML |
214 | } else if (!strcmp(cmd, "--work-tree")) { |
215 | if (*argc < 2) { | |
fc045fe7 | 216 | fprintf(stderr, _("no directory given for --work-tree\n" )); |
892c41b9 ML |
217 | usage(git_usage_string); |
218 | } | |
219 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
220 | if (envchanged) |
221 | *envchanged = 1; | |
892c41b9 ML |
222 | (*argv)++; |
223 | (*argc)--; | |
ae021d87 JK |
224 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
225 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
226 | if (envchanged) |
227 | *envchanged = 1; | |
74866d75 BW |
228 | } else if (!strcmp(cmd, "--super-prefix")) { |
229 | if (*argc < 2) { | |
fc045fe7 | 230 | fprintf(stderr, _("no prefix given for --super-prefix\n" )); |
74866d75 BW |
231 | usage(git_usage_string); |
232 | } | |
233 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1); | |
234 | if (envchanged) | |
235 | *envchanged = 1; | |
236 | (*argv)++; | |
237 | (*argc)--; | |
238 | } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) { | |
239 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1); | |
240 | if (envchanged) | |
241 | *envchanged = 1; | |
6acbcb92 | 242 | } else if (!strcmp(cmd, "--bare")) { |
4d3ab44d | 243 | char *cwd = xgetcwd(); |
6adcca3f | 244 | is_bare_repository_cfg = 1; |
4d3ab44d RS |
245 | setenv(GIT_DIR_ENVIRONMENT, cwd, 0); |
246 | free(cwd); | |
2cd83d10 | 247 | setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); |
4394efec ML |
248 | if (envchanged) |
249 | *envchanged = 1; | |
8b1fa778 AR |
250 | } else if (!strcmp(cmd, "-c")) { |
251 | if (*argc < 2) { | |
fc045fe7 | 252 | fprintf(stderr, _("-c expects a configuration string\n" )); |
8b1fa778 AR |
253 | usage(git_usage_string); |
254 | } | |
2b64fc89 | 255 | git_config_push_parameter((*argv)[1]); |
8b1fa778 AR |
256 | (*argv)++; |
257 | (*argc)--; | |
c331551c PS |
258 | } else if (!strcmp(cmd, "--config-env")) { |
259 | if (*argc < 2) { | |
260 | fprintf(stderr, _("no config key given for --config-env\n" )); | |
261 | usage(git_usage_string); | |
262 | } | |
263 | git_config_push_env((*argv)[1]); | |
264 | (*argv)++; | |
265 | (*argc)--; | |
ce81b1da PS |
266 | } else if (skip_prefix(cmd, "--config-env=", &cmd)) { |
267 | git_config_push_env(cmd); | |
823ab40f JK |
268 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
269 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
270 | if (envchanged) | |
271 | *envchanged = 1; | |
272 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
273 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
274 | if (envchanged) | |
275 | *envchanged = 1; | |
bd30c2e4 NTND |
276 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
277 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
278 | if (envchanged) | |
279 | *envchanged = 1; | |
280 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
281 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
282 | if (envchanged) | |
283 | *envchanged = 1; | |
93d93537 NTND |
284 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
285 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
286 | if (envchanged) | |
287 | *envchanged = 1; | |
27344d6a JK |
288 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
289 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
290 | if (envchanged) | |
291 | *envchanged = 1; | |
6035d6aa NTND |
292 | } else if (!strcmp(cmd, "--shallow-file")) { |
293 | (*argv)++; | |
294 | (*argc)--; | |
6a2df51c | 295 | set_alternate_shallow_file(the_repository, (*argv)[0], 1); |
6035d6aa NTND |
296 | if (envchanged) |
297 | *envchanged = 1; | |
44e1e4d6 NR |
298 | } else if (!strcmp(cmd, "-C")) { |
299 | if (*argc < 2) { | |
fc045fe7 | 300 | fprintf(stderr, _("no directory given for -C\n" )); |
44e1e4d6 NR |
301 | usage(git_usage_string); |
302 | } | |
6a536e20 KN |
303 | if ((*argv)[1][0]) { |
304 | if (chdir((*argv)[1])) | |
fc045fe7 | 305 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
306 | if (envchanged) |
307 | *envchanged = 1; | |
308 | } | |
44e1e4d6 NR |
309 | (*argv)++; |
310 | (*argc)--; | |
0089521c | 311 | } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) { |
ee4512ed | 312 | trace2_cmd_name("_query_"); |
0089521c | 313 | if (!strcmp(cmd, "parseopt")) { |
e5d7a619 NTND |
314 | struct string_list list = STRING_LIST_INIT_DUP; |
315 | int i; | |
316 | ||
317 | list_builtins(&list, NO_PARSEOPT); | |
318 | for (i = 0; i < list.nr; i++) | |
319 | printf("%s ", list.items[i].string); | |
320 | string_list_clear(&list, 0); | |
0089521c NTND |
321 | exit(0); |
322 | } else { | |
323 | exit(list_cmds(cmd)); | |
324 | } | |
6acbcb92 | 325 | } else { |
fc045fe7 | 326 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 327 | usage(git_usage_string); |
6acbcb92 | 328 | } |
4ab243a9 JS |
329 | |
330 | (*argv)++; | |
331 | (*argc)--; | |
4ab243a9 | 332 | } |
73546c08 | 333 | return (*argv) - orig_argv; |
4ab243a9 JS |
334 | } |
335 | ||
2b11e317 JS |
336 | static int handle_alias(int *argcp, const char ***argv) |
337 | { | |
af05d679 | 338 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 339 | int count, option_count; |
4b25d091 | 340 | const char **new_argv; |
94351118 JK |
341 | const char *alias_command; |
342 | char *alias_string; | |
0347a8c7 ML |
343 | |
344 | alias_command = (*argv)[0]; | |
94351118 | 345 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 346 | if (alias_string) { |
a9a60b94 RV |
347 | if (*argcp > 1 && !strcmp((*argv)[1], "-h")) |
348 | fprintf_ln(stderr, _("'%s' is aliased to '%s'"), | |
349 | alias_command, alias_string); | |
dfd42a3c | 350 | if (alias_string[0] == '!') { |
850d2fec | 351 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
352 | int nongit_ok; |
353 | ||
354 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
355 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 356 | |
030149a4 | 357 | commit_pager_choice(); |
7f51f8bc | 358 | |
850d2fec | 359 | child.use_shell = 1; |
c0d73a59 TA |
360 | child.clean_on_exit = 1; |
361 | child.wait_after_clean = 1; | |
ee4512ed | 362 | child.trace2_child_class = "shell_alias"; |
ef8d7ac4 JK |
363 | strvec_push(&child.args, alias_string + 1); |
364 | strvec_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 365 | |
d70a9eb6 | 366 | trace2_cmd_alias(alias_command, child.args.v); |
ee4512ed | 367 | trace2_cmd_list_config(); |
3d3adaad | 368 | trace2_cmd_list_env_vars(); |
ee4512ed JH |
369 | trace2_cmd_name("_run_shell_alias_"); |
370 | ||
850d2fec | 371 | ret = run_command(&child); |
7f51f8bc EFL |
372 | if (ret >= 0) /* normal exit */ |
373 | exit(ret); | |
374 | ||
8aa8c140 NTND |
375 | die_errno(_("while expanding alias '%s': '%s'"), |
376 | alias_command, alias_string + 1); | |
dfd42a3c | 377 | } |
0347a8c7 | 378 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 379 | if (count < 0) |
8aa8c140 | 380 | die(_("bad alias.%s string: %s"), alias_command, |
a7412ae1 | 381 | _(split_cmdline_strerror(count))); |
4394efec ML |
382 | option_count = handle_options(&new_argv, &count, &envchanged); |
383 | if (envchanged) | |
8aa8c140 NTND |
384 | die(_("alias '%s' changes environment variables.\n" |
385 | "You can use '!git' in the alias to do this"), | |
386 | alias_command); | |
7bd97d6d | 387 | MOVE_ARRAY(new_argv - option_count, new_argv, count); |
0347a8c7 ML |
388 | new_argv -= option_count; |
389 | ||
390 | if (count < 1) | |
8aa8c140 | 391 | die(_("empty alias for %s"), alias_command); |
0347a8c7 ML |
392 | |
393 | if (!strcmp(alias_command, new_argv[0])) | |
8aa8c140 | 394 | die(_("recursive alias: %s"), alias_command); |
0347a8c7 | 395 | |
b319ce4c | 396 | trace_argv_printf(new_argv, |
6ce4e61f CC |
397 | "trace: alias expansion: %s =>", |
398 | alias_command); | |
575ba9d6 | 399 | |
2756ca43 | 400 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 401 | /* insert after command name */ |
7bd97d6d | 402 | COPY_ARRAY(new_argv + count, *argv + 1, *argcp); |
2b11e317 | 403 | |
ee4512ed JH |
404 | trace2_cmd_alias(alias_command, new_argv); |
405 | trace2_cmd_list_config(); | |
3d3adaad | 406 | trace2_cmd_list_env_vars(); |
ee4512ed | 407 | |
0347a8c7 ML |
408 | *argv = new_argv; |
409 | *argcp += count - 1; | |
2b11e317 | 410 | |
0347a8c7 | 411 | ret = 1; |
2b11e317 JS |
412 | } |
413 | ||
47e5c0ca JS |
414 | errno = saved_errno; |
415 | ||
2b11e317 JS |
416 | return ret; |
417 | } | |
418 | ||
f172f334 | 419 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 420 | { |
99caeed0 | 421 | int status, help; |
0f157315 | 422 | struct stat st; |
47d0b4ff | 423 | const char *prefix; |
e5b17bda | 424 | int run_setup = (p->option & (RUN_SETUP | RUN_SETUP_GENTLY)); |
47d0b4ff | 425 | |
99caeed0 | 426 | help = argc == 2 && !strcmp(argv[1], "-h"); |
e5b17bda LD |
427 | if (help && (run_setup & RUN_SETUP)) |
428 | /* demote to GENTLY to allow 'git cmd -h' outside repo */ | |
429 | run_setup = RUN_SETUP_GENTLY; | |
430 | ||
431 | if (run_setup & RUN_SETUP) { | |
432 | prefix = setup_git_directory(); | |
433 | } else if (run_setup & RUN_SETUP_GENTLY) { | |
434 | int nongit_ok; | |
435 | prefix = setup_git_directory_gently(&nongit_ok); | |
436 | } else { | |
437 | prefix = NULL; | |
99caeed0 | 438 | } |
e5b17bda LD |
439 | precompose_argv_prefix(argc, argv, NULL); |
440 | if (use_pager == -1 && run_setup && | |
441 | !(p->option & DELAY_PAGER_CONFIG)) | |
442 | use_pager = check_pager_config(p->cmd); | |
443 | if (use_pager == -1 && p->option & USE_PAGER) | |
444 | use_pager = 1; | |
445 | if (run_setup && startup_info->have_repository) | |
446 | /* get_git_dir() may set up repo, avoid that */ | |
447 | trace_repo_setup(prefix); | |
4e10738a JK |
448 | commit_pager_choice(); |
449 | ||
74866d75 BW |
450 | if (!help && get_super_prefix()) { |
451 | if (!(p->option & SUPPORT_SUPER_PREFIX)) | |
8aa8c140 | 452 | die(_("%s doesn't support --super-prefix"), p->cmd); |
74866d75 BW |
453 | } |
454 | ||
99caeed0 | 455 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
456 | setup_work_tree(); |
457 | ||
b319ce4c | 458 | trace_argv_printf(argv, "trace: built-in: git"); |
ee4512ed JH |
459 | trace2_cmd_name(p->cmd); |
460 | trace2_cmd_list_config(); | |
3d3adaad | 461 | trace2_cmd_list_env_vars(); |
47d0b4ff | 462 | |
f8adbec9 | 463 | validate_cache_entries(the_repository->index); |
0f157315 | 464 | status = p->fn(argc, argv, prefix); |
f8adbec9 | 465 | validate_cache_entries(the_repository->index); |
8616a2d0 | 466 | |
0f157315 | 467 | if (status) |
47e3de0e | 468 | return status; |
0f157315 LT |
469 | |
470 | /* Somebody closed stdout? */ | |
471 | if (fstat(fileno(stdout), &st)) | |
472 | return 0; | |
473 | /* Ignore write errors for pipes and sockets.. */ | |
474 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
475 | return 0; | |
476 | ||
477 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 478 | if (fflush(stdout)) |
8aa8c140 | 479 | die_errno(_("write failure on standard output")); |
0227f988 | 480 | if (ferror(stdout)) |
8aa8c140 | 481 | die(_("unknown write failure on standard output")); |
0227f988 | 482 | if (fclose(stdout)) |
8aa8c140 | 483 | die_errno(_("close failed on standard output")); |
0f157315 | 484 | return 0; |
47d0b4ff LT |
485 | } |
486 | ||
c6127fa3 SS |
487 | static struct cmd_struct commands[] = { |
488 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 489 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 | 490 | { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 491 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 492 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
493 | { "bisect--helper", cmd_bisect__helper, RUN_SETUP }, |
494 | { "blame", cmd_blame, RUN_SETUP }, | |
d74b541e | 495 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
d7a5649c | 496 | { "bugreport", cmd_bugreport, RUN_SETUP_GENTLY }, |
e9547947 | 497 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
498 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
499 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
500 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
501 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 502 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 503 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
e9e8adf1 MT |
504 | { "checkout--worker", cmd_checkout__worker, |
505 | RUN_SETUP | NEED_WORK_TREE | SUPPORT_SUPER_PREFIX }, | |
c6127fa3 SS |
506 | { "checkout-index", cmd_checkout_index, |
507 | RUN_SETUP | NEED_WORK_TREE}, | |
508 | { "cherry", cmd_cherry, RUN_SETUP }, | |
509 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
510 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 511 | { "clone", cmd_clone }, |
c6127fa3 SS |
512 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
513 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
4ce58ee3 | 514 | { "commit-graph", cmd_commit_graph, RUN_SETUP }, |
e9547947 | 515 | { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT }, |
32888b8f | 516 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 517 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 518 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
b5dd96b7 JK |
519 | { "credential-cache", cmd_credential_cache }, |
520 | { "credential-cache--daemon", cmd_credential_cache_daemon }, | |
521 | { "credential-store", cmd_credential_store }, | |
c6127fa3 | 522 | { "describe", cmd_describe, RUN_SETUP }, |
e9547947 NTND |
523 | { "diff", cmd_diff, NO_PARSEOPT }, |
524 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
525 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
526 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
20de316e | 527 | { "difftool", cmd_difftool, RUN_SETUP_GENTLY }, |
b4f207f3 | 528 | { "env--helper", cmd_env__helper }, |
c6127fa3 | 529 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
a006f875 | 530 | { "fast-import", cmd_fast_import, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 531 | { "fetch", cmd_fetch, RUN_SETUP }, |
e9547947 | 532 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
533 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
534 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
4950b2a2 | 535 | { "for-each-repo", cmd_for_each_repo, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
536 | { "format-patch", cmd_format_patch, RUN_SETUP }, |
537 | { "fsck", cmd_fsck, RUN_SETUP }, | |
538 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
539 | { "gc", cmd_gc, RUN_SETUP }, | |
e9547947 | 540 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 541 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
542 | { "hash-object", cmd_hash_object }, |
543 | { "help", cmd_help }, | |
e9547947 | 544 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
545 | { "init", cmd_init_db }, |
546 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 547 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 548 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 549 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
550 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
551 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
e9547947 NTND |
552 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
553 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, | |
e72f7def | 554 | { "maintenance", cmd_maintenance, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
555 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
556 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
557 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
558 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
559 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
560 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
561 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
562 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
563 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
564 | { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT }, | |
565 | { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 | 566 | { "mktree", cmd_mktree, RUN_SETUP }, |
73ff4ad0 | 567 | { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP }, |
c6127fa3 SS |
568 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, |
569 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
570 | { "notes", cmd_notes, RUN_SETUP }, | |
571 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 572 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 573 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 574 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
575 | { "pickaxe", cmd_blame, RUN_SETUP }, |
576 | { "prune", cmd_prune, RUN_SETUP }, | |
577 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 578 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 579 | { "push", cmd_push, RUN_SETUP }, |
348ae56c | 580 | { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER }, |
3d415425 | 581 | { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX}, |
80dfc924 | 582 | { "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
583 | { "receive-pack", cmd_receive_pack }, |
584 | { "reflog", cmd_reflog, RUN_SETUP }, | |
585 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
586 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
587 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
588 | { "repack", cmd_repack, RUN_SETUP }, |
589 | { "replace", cmd_replace, RUN_SETUP }, | |
590 | { "rerere", cmd_rerere, RUN_SETUP }, | |
591 | { "reset", cmd_reset, RUN_SETUP }, | |
46e91b66 | 592 | { "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 NTND |
593 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
594 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
595 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
596 | { "rm", cmd_rm, RUN_SETUP }, | |
597 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
598 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, | |
599 | { "show", cmd_show, RUN_SETUP }, | |
600 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
88a09a55 | 601 | { "show-index", cmd_show_index, RUN_SETUP_GENTLY }, |
c6127fa3 | 602 | { "show-ref", cmd_show_ref, RUN_SETUP }, |
94c0956b | 603 | { "sparse-checkout", cmd_sparse_checkout, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 604 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, |
8a2cd3f5 | 605 | { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
606 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, |
607 | { "stripspace", cmd_stripspace }, | |
e9547947 | 608 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT }, |
d787d311 | 609 | { "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 610 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 611 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
612 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
613 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
614 | { "update-index", cmd_update_index, RUN_SETUP }, |
615 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
616 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
617 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
618 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
a3d6b53e | 619 | { "upload-pack", cmd_upload_pack }, |
e9547947 | 620 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
d07b00b7 | 621 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
622 | { "verify-pack", cmd_verify_pack }, |
623 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
624 | { "version", cmd_version }, | |
625 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
e9547947 | 626 | { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
627 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
628 | }; | |
629 | ||
c4f901d1 | 630 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
631 | { |
632 | int i; | |
633 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 634 | struct cmd_struct *p = commands + i; |
c6127fa3 | 635 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 636 | return p; |
c6127fa3 | 637 | } |
c4f901d1 SV |
638 | return NULL; |
639 | } | |
640 | ||
641 | int is_builtin(const char *s) | |
642 | { | |
643 | return !!get_builtin(s); | |
c6127fa3 SS |
644 | } |
645 | ||
e5d7a619 | 646 | static void list_builtins(struct string_list *out, unsigned int exclude_option) |
8893fd95 JK |
647 | { |
648 | int i; | |
e9547947 NTND |
649 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
650 | if (exclude_option && | |
651 | (commands[i].option & exclude_option)) | |
652 | continue; | |
e5d7a619 | 653 | string_list_append(out, commands[i].cmd); |
e9547947 | 654 | } |
8893fd95 JK |
655 | } |
656 | ||
722fc374 JS |
657 | void load_builtin_commands(const char *prefix, struct cmdnames *cmds) |
658 | { | |
659 | const char *name; | |
660 | int i; | |
661 | ||
662 | /* | |
663 | * Callers can ask for a subset of the commands based on a certain | |
664 | * prefix, which is then dropped from the added names. The names in | |
665 | * the `commands[]` array do not have the `git-` prefix, though, | |
666 | * therefore we must expect the `prefix` to at least start with `git-`. | |
667 | */ | |
668 | if (!skip_prefix(prefix, "git-", &prefix)) | |
669 | BUG("prefix '%s' must start with 'git-'", prefix); | |
670 | ||
671 | for (i = 0; i < ARRAY_SIZE(commands); i++) | |
672 | if (skip_prefix(commands[i].cmd, prefix, &name)) | |
673 | add_cmdname(cmds, name, strlen(name)); | |
674 | } | |
675 | ||
63ca1c09 AK |
676 | #ifdef STRIP_EXTENSION |
677 | static void strip_extension(const char **argv) | |
678 | { | |
679 | size_t len; | |
680 | ||
681 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
682 | argv[0] = xmemdupz(argv[0], len); | |
683 | } | |
684 | #else | |
685 | #define strip_extension(cmd) | |
686 | #endif | |
687 | ||
3f784a4d | 688 | static void handle_builtin(int argc, const char **argv) |
231af832 | 689 | { |
ef8d7ac4 | 690 | struct strvec args = STRVEC_INIT; |
63ca1c09 | 691 | const char *cmd; |
c4f901d1 | 692 | struct cmd_struct *builtin; |
23326d14 | 693 | |
63ca1c09 AK |
694 | strip_extension(argv); |
695 | cmd = argv[0]; | |
231af832 | 696 | |
2c6b6d9f | 697 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 698 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
699 | int i; |
700 | ||
1cd95087 LT |
701 | argv[1] = argv[0]; |
702 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
703 | |
704 | for (i = 0; i < argc; i++) { | |
ef8d7ac4 | 705 | strvec_push(&args, argv[i]); |
2c6b6d9f | 706 | if (!i) |
ef8d7ac4 | 707 | strvec_push(&args, "--exclude-guides"); |
2c6b6d9f RT |
708 | } |
709 | ||
710 | argc++; | |
d70a9eb6 | 711 | argv = args.v; |
1cd95087 LT |
712 | } |
713 | ||
c4f901d1 | 714 | builtin = get_builtin(cmd); |
441981bc JH |
715 | if (builtin) |
716 | exit(run_builtin(builtin, argc, argv)); | |
ef8d7ac4 | 717 | strvec_clear(&args); |
231af832 LT |
718 | } |
719 | ||
7550be0a JH |
720 | static void execv_dashed_external(const char **argv) |
721 | { | |
2b296c93 | 722 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 723 | int status; |
7550be0a | 724 | |
74866d75 | 725 | if (get_super_prefix()) |
8aa8c140 | 726 | die(_("%s doesn't support --super-prefix"), argv[0]); |
74866d75 | 727 | |
595d59e2 | 728 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 729 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
730 | commit_pager_choice(); |
731 | ||
ef8d7ac4 JK |
732 | strvec_pushf(&cmd.args, "git-%s", argv[0]); |
733 | strvec_pushv(&cmd.args, argv + 1); | |
2b296c93 | 734 | cmd.clean_on_exit = 1; |
46df6906 | 735 | cmd.wait_after_clean = 1; |
2b296c93 | 736 | cmd.silent_exec_failure = 1; |
ee4512ed | 737 | cmd.trace2_child_class = "dashed"; |
7550be0a | 738 | |
ee4512ed JH |
739 | trace2_cmd_name("_run_dashed_"); |
740 | ||
741 | /* | |
742 | * The code in run_command() logs trace2 child_start/child_exit | |
743 | * events, so we do not need to report exec/exec_result events here. | |
744 | */ | |
d70a9eb6 | 745 | trace_argv_printf(cmd.args.v, "trace: exec:"); |
7550be0a | 746 | |
d8e96fd8 | 747 | /* |
246f0ede JK |
748 | * If we fail because the command is not found, it is |
749 | * OK to return. Otherwise, we just pass along the status code, | |
750 | * or our usual generic code if we were not even able to exec | |
751 | * the program. | |
d8e96fd8 | 752 | */ |
2b296c93 | 753 | status = run_command(&cmd); |
ee4512ed JH |
754 | |
755 | /* | |
756 | * If the child process ran and we are now going to exit, emit a | |
757 | * generic string as our trace2 command verb to indicate that we | |
758 | * launched a dashed command. | |
759 | */ | |
246f0ede | 760 | if (status >= 0) |
5709e036 | 761 | exit(status); |
246f0ede JK |
762 | else if (errno != ENOENT) |
763 | exit(128); | |
7550be0a JH |
764 | } |
765 | ||
a907e1b6 AS |
766 | static int run_argv(int *argcp, const char ***argv) |
767 | { | |
768 | int done_alias = 0; | |
c6d75bc1 | 769 | struct string_list cmd_list = STRING_LIST_INIT_NODUP; |
82f71d9a | 770 | struct string_list_item *seen; |
a907e1b6 AS |
771 | |
772 | while (1) { | |
441981bc JH |
773 | /* |
774 | * If we tried alias and futzed with our environment, | |
775 | * it no longer is safe to invoke builtins directly in | |
776 | * general. We have to spawn them as dashed externals. | |
777 | * | |
778 | * NEEDSWORK: if we can figure out cases | |
779 | * where it is safe to do, we can avoid spawning a new | |
780 | * process. | |
781 | */ | |
782 | if (!done_alias) | |
783 | handle_builtin(*argcp, *argv); | |
ee4512ed | 784 | else if (get_builtin(**argv)) { |
ef8d7ac4 | 785 | struct strvec args = STRVEC_INIT; |
ee4512ed JH |
786 | int i; |
787 | ||
788 | /* | |
789 | * The current process is committed to launching a | |
790 | * child process to run the command named in (**argv) | |
791 | * and exiting. Log a generic string as the trace2 | |
792 | * command verb to indicate this. Note that the child | |
793 | * process will log the actual verb when it runs. | |
794 | */ | |
795 | trace2_cmd_name("_run_git_alias_"); | |
796 | ||
797 | if (get_super_prefix()) | |
798 | die("%s doesn't support --super-prefix", **argv); | |
799 | ||
800 | commit_pager_choice(); | |
801 | ||
ef8d7ac4 | 802 | strvec_push(&args, "git"); |
ee4512ed | 803 | for (i = 0; i < *argcp; i++) |
ef8d7ac4 | 804 | strvec_push(&args, (*argv)[i]); |
ee4512ed | 805 | |
d70a9eb6 | 806 | trace_argv_printf(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 | */ | |
d70a9eb6 | 812 | i = run_command_v_opt_tr2(args.v, RUN_SILENT_EXEC_FAILURE | |
e662df7e | 813 | RUN_CLEAN_ON_EXIT | RUN_WAIT_AFTER_CLEAN, "git_alias"); |
ee4512ed JH |
814 | if (i >= 0 || errno != ENOENT) |
815 | exit(i); | |
816 | die("could not execute builtin %s", **argv); | |
817 | } | |
ee4512ed | 818 | |
a907e1b6 AS |
819 | /* .. then try the external ones */ |
820 | execv_dashed_external(*argv); | |
821 | ||
82f71d9a TS |
822 | seen = unsorted_string_list_lookup(&cmd_list, *argv[0]); |
823 | if (seen) { | |
824 | int i; | |
825 | struct strbuf sb = STRBUF_INIT; | |
826 | for (i = 0; i < cmd_list.nr; i++) { | |
827 | struct string_list_item *item = &cmd_list.items[i]; | |
828 | ||
829 | strbuf_addf(&sb, "\n %s", item->string); | |
830 | if (item == seen) | |
831 | strbuf_addstr(&sb, " <=="); | |
832 | else if (i == cmd_list.nr - 1) | |
833 | strbuf_addstr(&sb, " ==>"); | |
834 | } | |
c6d75bc1 | 835 | die(_("alias loop detected: expansion of '%s' does" |
82f71d9a | 836 | " not terminate:%s"), cmd_list.items[0].string, sb.buf); |
c6d75bc1 TS |
837 | } |
838 | ||
839 | string_list_append(&cmd_list, *argv[0]); | |
840 | ||
841 | /* | |
842 | * It could be an alias -- this works around the insanity | |
a907e1b6 AS |
843 | * of overriding "git log" with "git show" by having |
844 | * alias.log = show | |
845 | */ | |
c0562611 | 846 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
847 | break; |
848 | done_alias = 1; | |
849 | } | |
850 | ||
c6d75bc1 TS |
851 | string_list_clear(&cmd_list, 0); |
852 | ||
a907e1b6 AS |
853 | return done_alias; |
854 | } | |
855 | ||
3f2e2297 | 856 | int cmd_main(int argc, const char **argv) |
8e49d503 | 857 | { |
4dd47c3b | 858 | const char *cmd; |
8fa7975b | 859 | int done_help = 0; |
231af832 | 860 | |
650c4492 | 861 | cmd = argv[0]; |
2cd72b0b | 862 | if (!cmd) |
4dd47c3b | 863 | cmd = "git-help"; |
6854a8f5 JK |
864 | else { |
865 | const char *slash = find_last_dir_sep(cmd); | |
866 | if (slash) | |
867 | cmd = slash + 1; | |
868 | } | |
8e49d503 | 869 | |
578da039 KB |
870 | trace_command_performance(argv); |
871 | ||
231af832 LT |
872 | /* |
873 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
874 | * | |
875 | * - cannot take flags in between the "git" and the "xxxx". | |
876 | * - cannot execute it externally (since it would just do | |
877 | * the same thing over again) | |
878 | * | |
3f784a4d SS |
879 | * So we just directly call the builtin handler, and die if |
880 | * that one cannot handle it. | |
231af832 | 881 | */ |
ae021d87 | 882 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 883 | argv[0] = cmd; |
3f784a4d | 884 | handle_builtin(argc, argv); |
8aa8c140 | 885 | die(_("cannot handle %s as a builtin"), cmd); |
231af832 | 886 | } |
8e49d503 | 887 | |
231af832 | 888 | /* Look for flags.. */ |
6acbcb92 JS |
889 | argv++; |
890 | argc--; | |
4394efec | 891 | handle_options(&argv, &argc, NULL); |
6acbcb92 | 892 | if (argc > 0) { |
6d877803 JK |
893 | /* translate --help and --version into commands */ |
894 | skip_prefix(argv[0], "--", &argv[0]); | |
6acbcb92 | 895 | } else { |
3d7e2d85 | 896 | /* The user didn't specify a command; give them help */ |
73e25e7c | 897 | commit_pager_choice(); |
8aa8c140 | 898 | printf(_("usage: %s\n\n"), git_usage_string); |
3d7e2d85 | 899 | list_common_cmds_help(); |
421a9769 | 900 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 901 | exit(1); |
97fc6c5f | 902 | } |
6acbcb92 | 903 | cmd = argv[0]; |
231af832 LT |
904 | |
905 | /* | |
511707d4 | 906 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 907 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
908 | * environment, and the $(gitexecdir) from the Makefile at build |
909 | * time. | |
231af832 | 910 | */ |
e1464ca7 | 911 | setup_path(); |
8e49d503 | 912 | |
a025463b | 913 | while (1) { |
8fa7975b | 914 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 915 | if (errno != ENOENT) |
a025463b | 916 | break; |
a907e1b6 | 917 | if (was_alias) { |
fc045fe7 AS |
918 | fprintf(stderr, _("expansion of alias '%s' failed; " |
919 | "'%s' is not a git command\n"), | |
f3dd015c TT |
920 | cmd, argv[0]); |
921 | exit(1); | |
922 | } | |
a907e1b6 AS |
923 | if (!done_help) { |
924 | cmd = argv[0] = help_unknown_cmd(cmd); | |
925 | done_help = 1; | |
926 | } else | |
927 | break; | |
f3dd015c | 928 | } |
10b15b86 | 929 | |
fc045fe7 | 930 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 931 | cmd, strerror(errno)); |
8e49d503 AE |
932 | |
933 | return 1; | |
934 | } |