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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" |
8e49d503 | 6 | |
007aa8d8 NTND |
7 | #define RUN_SETUP (1<<0) |
8 | #define RUN_SETUP_GENTLY (1<<1) | |
9 | #define USE_PAGER (1<<2) | |
10 | /* | |
11 | * require working tree to be present -- anything uses this needs | |
12 | * RUN_SETUP for reading from the configuration file. | |
13 | */ | |
14 | #define NEED_WORK_TREE (1<<3) | |
15 | #define SUPPORT_SUPER_PREFIX (1<<4) | |
16 | #define DELAY_PAGER_CONFIG (1<<5) | |
e9547947 | 17 | #define NO_PARSEOPT (1<<6) /* parse-options is not used */ |
007aa8d8 NTND |
18 | |
19 | struct cmd_struct { | |
20 | const char *cmd; | |
21 | int (*fn)(int, const char **, const char *); | |
e9547947 | 22 | unsigned int option; |
007aa8d8 NTND |
23 | }; |
24 | ||
822a7d50 | 25 | const char git_usage_string[] = |
fc045fe7 AS |
26 | N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n" |
27 | " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n" | |
7213c288 | 28 | " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n" |
fc045fe7 AS |
29 | " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n" |
30 | " <command> [<args>]"); | |
822a7d50 | 31 | |
b7d96819 | 32 | const char git_more_info_string[] = |
ad5fe377 | 33 | N_("'git help -a' and 'git help -g' list available subcommands and some\n" |
73903d0b PO |
34 | "concept guides. See 'git help <command>' or 'git help <concept>'\n" |
35 | "to read about a specific subcommand or concept."); | |
b7d96819 | 36 | |
4e10738a | 37 | static int use_pager = -1; |
c0562611 | 38 | |
e9547947 | 39 | static void list_builtins(unsigned int exclude_option, char sep); |
8893fd95 | 40 | |
4e10738a JK |
41 | static void commit_pager_choice(void) { |
42 | switch (use_pager) { | |
43 | case 0: | |
44 | setenv("GIT_PAGER", "cat", 1); | |
45 | break; | |
46 | case 1: | |
47 | setup_pager(); | |
48 | break; | |
49 | default: | |
50 | break; | |
51 | } | |
52 | } | |
53 | ||
033fe3d9 MÅ |
54 | void setup_auto_pager(const char *cmd, int def) |
55 | { | |
56 | if (use_pager != -1 || pager_in_use()) | |
57 | return; | |
58 | use_pager = check_pager_config(cmd); | |
59 | if (use_pager == -1) | |
60 | use_pager = def; | |
61 | commit_pager_choice(); | |
62 | } | |
63 | ||
4b25d091 | 64 | static int handle_options(const char ***argv, int *argc, int *envchanged) |
4ab243a9 | 65 | { |
73546c08 | 66 | const char **orig_argv = *argv; |
4ab243a9 JS |
67 | |
68 | while (*argc > 0) { | |
69 | const char *cmd = (*argv)[0]; | |
70 | if (cmd[0] != '-') | |
71 | break; | |
72 | ||
6acbcb92 JS |
73 | /* |
74 | * For legacy reasons, the "version" and "help" | |
75 | * commands can be written with "--" prepended | |
76 | * to make them look like flags. | |
77 | */ | |
78 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) | |
79 | break; | |
80 | ||
81 | /* | |
82 | * Check remaining flags. | |
83 | */ | |
ae021d87 | 84 | if (skip_prefix(cmd, "--exec-path", &cmd)) { |
6acbcb92 | 85 | if (*cmd == '=') |
226c0ddd | 86 | git_set_exec_path(cmd + 1); |
6acbcb92 JS |
87 | else { |
88 | puts(git_exec_path()); | |
89 | exit(0); | |
90 | } | |
89a56bfb MH |
91 | } else if (!strcmp(cmd, "--html-path")) { |
92 | puts(system_path(GIT_HTML_PATH)); | |
93 | exit(0); | |
f2dd8c37 JS |
94 | } else if (!strcmp(cmd, "--man-path")) { |
95 | puts(system_path(GIT_MAN_PATH)); | |
96 | exit(0); | |
97 | } else if (!strcmp(cmd, "--info-path")) { | |
98 | puts(system_path(GIT_INFO_PATH)); | |
99 | exit(0); | |
6acbcb92 | 100 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { |
4e10738a | 101 | use_pager = 1; |
7213c288 | 102 | } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) { |
4e10738a | 103 | use_pager = 0; |
463a849d MM |
104 | if (envchanged) |
105 | *envchanged = 1; | |
b0fa7ab5 | 106 | } else if (!strcmp(cmd, "--no-replace-objects")) { |
afc711b8 | 107 | check_replace_refs = 0; |
6476b38b CC |
108 | setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1); |
109 | if (envchanged) | |
110 | *envchanged = 1; | |
6acbcb92 | 111 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d | 112 | if (*argc < 2) { |
fc045fe7 | 113 | fprintf(stderr, _("no directory given for --git-dir\n" )); |
c321f00d BG |
114 | usage(git_usage_string); |
115 | } | |
45b09794 | 116 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
117 | if (envchanged) |
118 | *envchanged = 1; | |
6acbcb92 JS |
119 | (*argv)++; |
120 | (*argc)--; | |
ae021d87 JK |
121 | } else if (skip_prefix(cmd, "--git-dir=", &cmd)) { |
122 | setenv(GIT_DIR_ENVIRONMENT, cmd, 1); | |
4394efec ML |
123 | if (envchanged) |
124 | *envchanged = 1; | |
a1bea2c1 JT |
125 | } else if (!strcmp(cmd, "--namespace")) { |
126 | if (*argc < 2) { | |
fc045fe7 | 127 | fprintf(stderr, _("no namespace given for --namespace\n" )); |
a1bea2c1 JT |
128 | usage(git_usage_string); |
129 | } | |
130 | setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1); | |
131 | if (envchanged) | |
132 | *envchanged = 1; | |
133 | (*argv)++; | |
134 | (*argc)--; | |
ae021d87 JK |
135 | } else if (skip_prefix(cmd, "--namespace=", &cmd)) { |
136 | setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1); | |
a1bea2c1 JT |
137 | if (envchanged) |
138 | *envchanged = 1; | |
892c41b9 ML |
139 | } else if (!strcmp(cmd, "--work-tree")) { |
140 | if (*argc < 2) { | |
fc045fe7 | 141 | fprintf(stderr, _("no directory given for --work-tree\n" )); |
892c41b9 ML |
142 | usage(git_usage_string); |
143 | } | |
144 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
145 | if (envchanged) |
146 | *envchanged = 1; | |
892c41b9 ML |
147 | (*argv)++; |
148 | (*argc)--; | |
ae021d87 JK |
149 | } else if (skip_prefix(cmd, "--work-tree=", &cmd)) { |
150 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1); | |
4394efec ML |
151 | if (envchanged) |
152 | *envchanged = 1; | |
74866d75 BW |
153 | } else if (!strcmp(cmd, "--super-prefix")) { |
154 | if (*argc < 2) { | |
fc045fe7 | 155 | fprintf(stderr, _("no prefix given for --super-prefix\n" )); |
74866d75 BW |
156 | usage(git_usage_string); |
157 | } | |
158 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1); | |
159 | if (envchanged) | |
160 | *envchanged = 1; | |
161 | (*argv)++; | |
162 | (*argc)--; | |
163 | } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) { | |
164 | setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1); | |
165 | if (envchanged) | |
166 | *envchanged = 1; | |
6acbcb92 | 167 | } else if (!strcmp(cmd, "--bare")) { |
4d3ab44d | 168 | char *cwd = xgetcwd(); |
6adcca3f | 169 | is_bare_repository_cfg = 1; |
4d3ab44d RS |
170 | setenv(GIT_DIR_ENVIRONMENT, cwd, 0); |
171 | free(cwd); | |
2cd83d10 | 172 | setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1); |
4394efec ML |
173 | if (envchanged) |
174 | *envchanged = 1; | |
8b1fa778 AR |
175 | } else if (!strcmp(cmd, "-c")) { |
176 | if (*argc < 2) { | |
fc045fe7 | 177 | fprintf(stderr, _("-c expects a configuration string\n" )); |
8b1fa778 AR |
178 | usage(git_usage_string); |
179 | } | |
2b64fc89 | 180 | git_config_push_parameter((*argv)[1]); |
8b1fa778 AR |
181 | (*argv)++; |
182 | (*argc)--; | |
823ab40f JK |
183 | } else if (!strcmp(cmd, "--literal-pathspecs")) { |
184 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1); | |
185 | if (envchanged) | |
186 | *envchanged = 1; | |
187 | } else if (!strcmp(cmd, "--no-literal-pathspecs")) { | |
188 | setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1); | |
189 | if (envchanged) | |
190 | *envchanged = 1; | |
bd30c2e4 NTND |
191 | } else if (!strcmp(cmd, "--glob-pathspecs")) { |
192 | setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
193 | if (envchanged) | |
194 | *envchanged = 1; | |
195 | } else if (!strcmp(cmd, "--noglob-pathspecs")) { | |
196 | setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1); | |
197 | if (envchanged) | |
198 | *envchanged = 1; | |
93d93537 NTND |
199 | } else if (!strcmp(cmd, "--icase-pathspecs")) { |
200 | setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1); | |
201 | if (envchanged) | |
202 | *envchanged = 1; | |
27344d6a JK |
203 | } else if (!strcmp(cmd, "--no-optional-locks")) { |
204 | setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1); | |
205 | if (envchanged) | |
206 | *envchanged = 1; | |
6035d6aa NTND |
207 | } else if (!strcmp(cmd, "--shallow-file")) { |
208 | (*argv)++; | |
209 | (*argc)--; | |
069c0532 | 210 | set_alternate_shallow_file((*argv)[0], 1); |
6035d6aa NTND |
211 | if (envchanged) |
212 | *envchanged = 1; | |
44e1e4d6 NR |
213 | } else if (!strcmp(cmd, "-C")) { |
214 | if (*argc < 2) { | |
fc045fe7 | 215 | fprintf(stderr, _("no directory given for -C\n" )); |
44e1e4d6 NR |
216 | usage(git_usage_string); |
217 | } | |
6a536e20 KN |
218 | if ((*argv)[1][0]) { |
219 | if (chdir((*argv)[1])) | |
fc045fe7 | 220 | die_errno("cannot change to '%s'", (*argv)[1]); |
6a536e20 KN |
221 | if (envchanged) |
222 | *envchanged = 1; | |
223 | } | |
44e1e4d6 NR |
224 | (*argv)++; |
225 | (*argc)--; | |
8893fd95 | 226 | } else if (!strcmp(cmd, "--list-builtins")) { |
e9547947 NTND |
227 | list_builtins(0, '\n'); |
228 | exit(0); | |
229 | } else if (!strcmp(cmd, "--list-parseopt-builtins")) { | |
230 | list_builtins(NO_PARSEOPT, ' '); | |
8893fd95 | 231 | exit(0); |
6acbcb92 | 232 | } else { |
fc045fe7 | 233 | fprintf(stderr, _("unknown option: %s\n"), cmd); |
822a7d50 | 234 | usage(git_usage_string); |
6acbcb92 | 235 | } |
4ab243a9 JS |
236 | |
237 | (*argv)++; | |
238 | (*argc)--; | |
4ab243a9 | 239 | } |
73546c08 | 240 | return (*argv) - orig_argv; |
4ab243a9 JS |
241 | } |
242 | ||
2b11e317 JS |
243 | static int handle_alias(int *argcp, const char ***argv) |
244 | { | |
af05d679 | 245 | int envchanged = 0, ret = 0, saved_errno = errno; |
0347a8c7 | 246 | int count, option_count; |
4b25d091 | 247 | const char **new_argv; |
94351118 JK |
248 | const char *alias_command; |
249 | char *alias_string; | |
0347a8c7 ML |
250 | |
251 | alias_command = (*argv)[0]; | |
94351118 | 252 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 253 | if (alias_string) { |
dfd42a3c | 254 | if (alias_string[0] == '!') { |
850d2fec | 255 | struct child_process child = CHILD_PROCESS_INIT; |
a9bcf658 JS |
256 | int nongit_ok; |
257 | ||
258 | /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */ | |
259 | setup_git_directory_gently(&nongit_ok); | |
7f51f8bc | 260 | |
030149a4 | 261 | commit_pager_choice(); |
7f51f8bc | 262 | |
850d2fec JK |
263 | child.use_shell = 1; |
264 | argv_array_push(&child.args, alias_string + 1); | |
265 | argv_array_pushv(&child.args, (*argv) + 1); | |
7f51f8bc | 266 | |
850d2fec | 267 | ret = run_command(&child); |
7f51f8bc EFL |
268 | if (ret >= 0) /* normal exit */ |
269 | exit(ret); | |
270 | ||
fc045fe7 | 271 | die_errno("while expanding alias '%s': '%s'", |
7f51f8bc | 272 | alias_command, alias_string + 1); |
dfd42a3c | 273 | } |
0347a8c7 | 274 | count = split_cmdline(alias_string, &new_argv); |
dc4179f9 | 275 | if (count < 0) |
ad9ac6db GB |
276 | die("Bad alias.%s string: %s", alias_command, |
277 | split_cmdline_strerror(count)); | |
4394efec ML |
278 | option_count = handle_options(&new_argv, &count, &envchanged); |
279 | if (envchanged) | |
fc045fe7 AS |
280 | die("alias '%s' changes environment variables.\n" |
281 | "You can use '!git' in the alias to do this", | |
4394efec | 282 | alias_command); |
0347a8c7 ML |
283 | memmove(new_argv - option_count, new_argv, |
284 | count * sizeof(char *)); | |
285 | new_argv -= option_count; | |
286 | ||
287 | if (count < 1) | |
288 | die("empty alias for %s", alias_command); | |
289 | ||
290 | if (!strcmp(alias_command, new_argv[0])) | |
291 | die("recursive alias: %s", alias_command); | |
292 | ||
b319ce4c | 293 | trace_argv_printf(new_argv, |
6ce4e61f CC |
294 | "trace: alias expansion: %s =>", |
295 | alias_command); | |
575ba9d6 | 296 | |
2756ca43 | 297 | REALLOC_ARRAY(new_argv, count + *argcp); |
0347a8c7 | 298 | /* insert after command name */ |
4b25d091 | 299 | memcpy(new_argv + count, *argv + 1, sizeof(char *) * *argcp); |
2b11e317 | 300 | |
0347a8c7 ML |
301 | *argv = new_argv; |
302 | *argcp += count - 1; | |
2b11e317 | 303 | |
0347a8c7 | 304 | ret = 1; |
2b11e317 JS |
305 | } |
306 | ||
47e5c0ca JS |
307 | errno = saved_errno; |
308 | ||
2b11e317 JS |
309 | return ret; |
310 | } | |
311 | ||
f172f334 | 312 | static int run_builtin(struct cmd_struct *p, int argc, const char **argv) |
47d0b4ff | 313 | { |
99caeed0 | 314 | int status, help; |
0f157315 | 315 | struct stat st; |
47d0b4ff LT |
316 | const char *prefix; |
317 | ||
318 | prefix = NULL; | |
99caeed0 JN |
319 | help = argc == 2 && !strcmp(argv[1], "-h"); |
320 | if (!help) { | |
321 | if (p->option & RUN_SETUP) | |
322 | prefix = setup_git_directory(); | |
27bd38d4 | 323 | else if (p->option & RUN_SETUP_GENTLY) { |
ee38dfb8 NTND |
324 | int nongit_ok; |
325 | prefix = setup_git_directory_gently(&nongit_ok); | |
326 | } | |
99caeed0 | 327 | |
c409824c MÅ |
328 | if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY) && |
329 | !(p->option & DELAY_PAGER_CONFIG)) | |
99caeed0 JN |
330 | use_pager = check_pager_config(p->cmd); |
331 | if (use_pager == -1 && p->option & USE_PAGER) | |
332 | use_pager = 1; | |
a9ca8a85 NTND |
333 | |
334 | if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) && | |
335 | startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */ | |
336 | trace_repo_setup(prefix); | |
99caeed0 | 337 | } |
4e10738a JK |
338 | commit_pager_choice(); |
339 | ||
74866d75 BW |
340 | if (!help && get_super_prefix()) { |
341 | if (!(p->option & SUPPORT_SUPER_PREFIX)) | |
342 | die("%s doesn't support --super-prefix", p->cmd); | |
74866d75 BW |
343 | } |
344 | ||
99caeed0 | 345 | if (!help && p->option & NEED_WORK_TREE) |
59f0f2f3 MH |
346 | setup_work_tree(); |
347 | ||
b319ce4c | 348 | trace_argv_printf(argv, "trace: built-in: git"); |
47d0b4ff | 349 | |
0f157315 LT |
350 | status = p->fn(argc, argv, prefix); |
351 | if (status) | |
47e3de0e | 352 | return status; |
0f157315 LT |
353 | |
354 | /* Somebody closed stdout? */ | |
355 | if (fstat(fileno(stdout), &st)) | |
356 | return 0; | |
357 | /* Ignore write errors for pipes and sockets.. */ | |
358 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
359 | return 0; | |
360 | ||
361 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 362 | if (fflush(stdout)) |
d824cbba | 363 | die_errno("write failure on standard output"); |
0227f988 LT |
364 | if (ferror(stdout)) |
365 | die("unknown write failure on standard output"); | |
366 | if (fclose(stdout)) | |
d824cbba | 367 | die_errno("close failed on standard output"); |
0f157315 | 368 | return 0; |
47d0b4ff LT |
369 | } |
370 | ||
c6127fa3 SS |
371 | static struct cmd_struct commands[] = { |
372 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
783d7e86 | 373 | { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE }, |
e9547947 | 374 | { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 375 | { "apply", cmd_apply, RUN_SETUP_GENTLY }, |
eb0224c6 | 376 | { "archive", cmd_archive, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
377 | { "bisect--helper", cmd_bisect__helper, RUN_SETUP }, |
378 | { "blame", cmd_blame, RUN_SETUP }, | |
d74b541e | 379 | { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 | 380 | { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
381 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
382 | { "check-attr", cmd_check_attr, RUN_SETUP }, | |
383 | { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE }, | |
384 | { "check-mailmap", cmd_check_mailmap, RUN_SETUP }, | |
e9547947 | 385 | { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT }, |
0ca560cb | 386 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
387 | { "checkout-index", cmd_checkout_index, |
388 | RUN_SETUP | NEED_WORK_TREE}, | |
389 | { "cherry", cmd_cherry, RUN_SETUP }, | |
390 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, | |
391 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, | |
86d26f24 | 392 | { "clone", cmd_clone }, |
c6127fa3 SS |
393 | { "column", cmd_column, RUN_SETUP_GENTLY }, |
394 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, | |
4ce58ee3 | 395 | { "commit-graph", cmd_commit_graph, RUN_SETUP }, |
e9547947 | 396 | { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT }, |
32888b8f | 397 | { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG }, |
c6127fa3 | 398 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
e9547947 | 399 | { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 | 400 | { "describe", cmd_describe, RUN_SETUP }, |
e9547947 NTND |
401 | { "diff", cmd_diff, NO_PARSEOPT }, |
402 | { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
403 | { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT }, | |
404 | { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT }, | |
019678d6 | 405 | { "difftool", cmd_difftool, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
406 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
407 | { "fetch", cmd_fetch, RUN_SETUP }, | |
e9547947 | 408 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
409 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
410 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, | |
411 | { "format-patch", cmd_format_patch, RUN_SETUP }, | |
412 | { "fsck", cmd_fsck, RUN_SETUP }, | |
413 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
414 | { "gc", cmd_gc, RUN_SETUP }, | |
e9547947 | 415 | { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT }, |
f9ee2fcd | 416 | { "grep", cmd_grep, RUN_SETUP_GENTLY }, |
c6127fa3 SS |
417 | { "hash-object", cmd_hash_object }, |
418 | { "help", cmd_help }, | |
e9547947 | 419 | { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
86d26f24 NTND |
420 | { "init", cmd_init_db }, |
421 | { "init-db", cmd_init_db }, | |
cbd9fc23 | 422 | { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY }, |
c6127fa3 | 423 | { "log", cmd_log, RUN_SETUP }, |
188dce13 | 424 | { "ls-files", cmd_ls_files, RUN_SETUP }, |
c6127fa3 SS |
425 | { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY }, |
426 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
e9547947 NTND |
427 | { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
428 | { "mailsplit", cmd_mailsplit, NO_PARSEOPT }, | |
c6127fa3 SS |
429 | { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE }, |
430 | { "merge-base", cmd_merge_base, RUN_SETUP }, | |
431 | { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY }, | |
e9547947 NTND |
432 | { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT }, |
433 | { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT }, | |
434 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
435 | { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
436 | { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
437 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT }, | |
438 | { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT }, | |
439 | { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
440 | { "mktree", cmd_mktree, RUN_SETUP }, |
441 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, | |
442 | { "name-rev", cmd_name_rev, RUN_SETUP }, | |
443 | { "notes", cmd_notes, RUN_SETUP }, | |
444 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
e9547947 | 445 | { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 | 446 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
e9547947 | 447 | { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
c6127fa3 SS |
448 | { "pickaxe", cmd_blame, RUN_SETUP }, |
449 | { "prune", cmd_prune, RUN_SETUP }, | |
450 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
1e1ea69f | 451 | { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 | 452 | { "push", cmd_push, RUN_SETUP }, |
3d415425 | 453 | { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX}, |
4557f1ad | 454 | { "rebase--helper", cmd_rebase__helper, RUN_SETUP | NEED_WORK_TREE }, |
c6127fa3 SS |
455 | { "receive-pack", cmd_receive_pack }, |
456 | { "reflog", cmd_reflog, RUN_SETUP }, | |
457 | { "remote", cmd_remote, RUN_SETUP }, | |
e9547947 NTND |
458 | { "remote-ext", cmd_remote_ext, NO_PARSEOPT }, |
459 | { "remote-fd", cmd_remote_fd, NO_PARSEOPT }, | |
c6127fa3 SS |
460 | { "repack", cmd_repack, RUN_SETUP }, |
461 | { "replace", cmd_replace, RUN_SETUP }, | |
462 | { "rerere", cmd_rerere, RUN_SETUP }, | |
463 | { "reset", cmd_reset, RUN_SETUP }, | |
e9547947 NTND |
464 | { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT }, |
465 | { "rev-parse", cmd_rev_parse, NO_PARSEOPT }, | |
c6127fa3 SS |
466 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
467 | { "rm", cmd_rm, RUN_SETUP }, | |
468 | { "send-pack", cmd_send_pack, RUN_SETUP }, | |
ed10cb95 | 469 | { "serve", cmd_serve, RUN_SETUP }, |
c6127fa3 SS |
470 | { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER }, |
471 | { "show", cmd_show, RUN_SETUP }, | |
472 | { "show-branch", cmd_show_branch, RUN_SETUP }, | |
473 | { "show-ref", cmd_show_ref, RUN_SETUP }, | |
474 | { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE }, | |
475 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE }, | |
476 | { "stripspace", cmd_stripspace }, | |
e9547947 | 477 | { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT }, |
c6127fa3 | 478 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
de121ffe | 479 | { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG }, |
e9547947 NTND |
480 | { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT }, |
481 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT }, | |
c6127fa3 SS |
482 | { "update-index", cmd_update_index, RUN_SETUP }, |
483 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
484 | { "update-server-info", cmd_update_server_info, RUN_SETUP }, | |
e9547947 NTND |
485 | { "upload-archive", cmd_upload_archive, NO_PARSEOPT }, |
486 | { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT }, | |
a3d6b53e | 487 | { "upload-pack", cmd_upload_pack }, |
e9547947 | 488 | { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT }, |
d07b00b7 | 489 | { "verify-commit", cmd_verify_commit, RUN_SETUP }, |
c6127fa3 SS |
490 | { "verify-pack", cmd_verify_pack }, |
491 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, | |
492 | { "version", cmd_version }, | |
493 | { "whatchanged", cmd_whatchanged, RUN_SETUP }, | |
e9547947 | 494 | { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT }, |
c6127fa3 SS |
495 | { "write-tree", cmd_write_tree, RUN_SETUP }, |
496 | }; | |
497 | ||
c4f901d1 | 498 | static struct cmd_struct *get_builtin(const char *s) |
c6127fa3 SS |
499 | { |
500 | int i; | |
501 | for (i = 0; i < ARRAY_SIZE(commands); i++) { | |
c4f901d1 | 502 | struct cmd_struct *p = commands + i; |
c6127fa3 | 503 | if (!strcmp(s, p->cmd)) |
c4f901d1 | 504 | return p; |
c6127fa3 | 505 | } |
c4f901d1 SV |
506 | return NULL; |
507 | } | |
508 | ||
509 | int is_builtin(const char *s) | |
510 | { | |
511 | return !!get_builtin(s); | |
c6127fa3 SS |
512 | } |
513 | ||
e9547947 | 514 | static void list_builtins(unsigned int exclude_option, char sep) |
8893fd95 JK |
515 | { |
516 | int i; | |
e9547947 NTND |
517 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
518 | if (exclude_option && | |
519 | (commands[i].option & exclude_option)) | |
520 | continue; | |
521 | printf("%s%c", commands[i].cmd, sep); | |
522 | } | |
8893fd95 JK |
523 | } |
524 | ||
63ca1c09 AK |
525 | #ifdef STRIP_EXTENSION |
526 | static void strip_extension(const char **argv) | |
527 | { | |
528 | size_t len; | |
529 | ||
530 | if (strip_suffix(argv[0], STRIP_EXTENSION, &len)) | |
531 | argv[0] = xmemdupz(argv[0], len); | |
532 | } | |
533 | #else | |
534 | #define strip_extension(cmd) | |
535 | #endif | |
536 | ||
3f784a4d | 537 | static void handle_builtin(int argc, const char **argv) |
231af832 | 538 | { |
2c6b6d9f | 539 | struct argv_array args = ARGV_ARRAY_INIT; |
63ca1c09 | 540 | const char *cmd; |
c4f901d1 | 541 | struct cmd_struct *builtin; |
23326d14 | 542 | |
63ca1c09 AK |
543 | strip_extension(argv); |
544 | cmd = argv[0]; | |
231af832 | 545 | |
2c6b6d9f | 546 | /* Turn "git cmd --help" into "git help --exclude-guides cmd" */ |
1cd95087 | 547 | if (argc > 1 && !strcmp(argv[1], "--help")) { |
2c6b6d9f RT |
548 | int i; |
549 | ||
1cd95087 LT |
550 | argv[1] = argv[0]; |
551 | argv[0] = cmd = "help"; | |
2c6b6d9f RT |
552 | |
553 | for (i = 0; i < argc; i++) { | |
554 | argv_array_push(&args, argv[i]); | |
555 | if (!i) | |
556 | argv_array_push(&args, "--exclude-guides"); | |
557 | } | |
558 | ||
559 | argc++; | |
560 | argv = args.argv; | |
1cd95087 LT |
561 | } |
562 | ||
c4f901d1 | 563 | builtin = get_builtin(cmd); |
441981bc JH |
564 | if (builtin) |
565 | exit(run_builtin(builtin, argc, argv)); | |
2c6b6d9f | 566 | argv_array_clear(&args); |
231af832 LT |
567 | } |
568 | ||
7550be0a JH |
569 | static void execv_dashed_external(const char **argv) |
570 | { | |
2b296c93 | 571 | struct child_process cmd = CHILD_PROCESS_INIT; |
d8e96fd8 | 572 | int status; |
7550be0a | 573 | |
74866d75 BW |
574 | if (get_super_prefix()) |
575 | die("%s doesn't support --super-prefix", argv[0]); | |
576 | ||
595d59e2 | 577 | if (use_pager == -1 && !is_builtin(argv[0])) |
92058e4d | 578 | use_pager = check_pager_config(argv[0]); |
030149a4 JN |
579 | commit_pager_choice(); |
580 | ||
2b296c93 JK |
581 | argv_array_pushf(&cmd.args, "git-%s", argv[0]); |
582 | argv_array_pushv(&cmd.args, argv + 1); | |
583 | cmd.clean_on_exit = 1; | |
46df6906 | 584 | cmd.wait_after_clean = 1; |
2b296c93 | 585 | cmd.silent_exec_failure = 1; |
7550be0a | 586 | |
2b296c93 | 587 | trace_argv_printf(cmd.args.argv, "trace: exec:"); |
7550be0a | 588 | |
d8e96fd8 | 589 | /* |
246f0ede JK |
590 | * If we fail because the command is not found, it is |
591 | * OK to return. Otherwise, we just pass along the status code, | |
592 | * or our usual generic code if we were not even able to exec | |
593 | * the program. | |
d8e96fd8 | 594 | */ |
2b296c93 | 595 | status = run_command(&cmd); |
246f0ede | 596 | if (status >= 0) |
5709e036 | 597 | exit(status); |
246f0ede JK |
598 | else if (errno != ENOENT) |
599 | exit(128); | |
7550be0a JH |
600 | } |
601 | ||
a907e1b6 AS |
602 | static int run_argv(int *argcp, const char ***argv) |
603 | { | |
604 | int done_alias = 0; | |
605 | ||
606 | while (1) { | |
441981bc JH |
607 | /* |
608 | * If we tried alias and futzed with our environment, | |
609 | * it no longer is safe to invoke builtins directly in | |
610 | * general. We have to spawn them as dashed externals. | |
611 | * | |
612 | * NEEDSWORK: if we can figure out cases | |
613 | * where it is safe to do, we can avoid spawning a new | |
614 | * process. | |
615 | */ | |
616 | if (!done_alias) | |
617 | handle_builtin(*argcp, *argv); | |
a907e1b6 AS |
618 | |
619 | /* .. then try the external ones */ | |
620 | execv_dashed_external(*argv); | |
621 | ||
622 | /* It could be an alias -- this works around the insanity | |
623 | * of overriding "git log" with "git show" by having | |
624 | * alias.log = show | |
625 | */ | |
c0562611 NTND |
626 | if (done_alias) |
627 | break; | |
c0562611 | 628 | if (!handle_alias(argcp, argv)) |
a907e1b6 AS |
629 | break; |
630 | done_alias = 1; | |
631 | } | |
632 | ||
633 | return done_alias; | |
634 | } | |
635 | ||
3f2e2297 | 636 | int cmd_main(int argc, const char **argv) |
8e49d503 | 637 | { |
4dd47c3b | 638 | const char *cmd; |
8fa7975b | 639 | int done_help = 0; |
231af832 | 640 | |
650c4492 | 641 | cmd = argv[0]; |
2cd72b0b | 642 | if (!cmd) |
4dd47c3b | 643 | cmd = "git-help"; |
6854a8f5 JK |
644 | else { |
645 | const char *slash = find_last_dir_sep(cmd); | |
646 | if (slash) | |
647 | cmd = slash + 1; | |
648 | } | |
8e49d503 | 649 | |
578da039 KB |
650 | trace_command_performance(argv); |
651 | ||
231af832 LT |
652 | /* |
653 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
654 | * | |
655 | * - cannot take flags in between the "git" and the "xxxx". | |
656 | * - cannot execute it externally (since it would just do | |
657 | * the same thing over again) | |
658 | * | |
3f784a4d SS |
659 | * So we just directly call the builtin handler, and die if |
660 | * that one cannot handle it. | |
231af832 | 661 | */ |
ae021d87 | 662 | if (skip_prefix(cmd, "git-", &cmd)) { |
231af832 | 663 | argv[0] = cmd; |
3f784a4d SS |
664 | handle_builtin(argc, argv); |
665 | die("cannot handle %s as a builtin", cmd); | |
231af832 | 666 | } |
8e49d503 | 667 | |
231af832 | 668 | /* Look for flags.. */ |
6acbcb92 JS |
669 | argv++; |
670 | argc--; | |
4394efec | 671 | handle_options(&argv, &argc, NULL); |
6acbcb92 | 672 | if (argc > 0) { |
6d877803 JK |
673 | /* translate --help and --version into commands */ |
674 | skip_prefix(argv[0], "--", &argv[0]); | |
6acbcb92 | 675 | } else { |
3d7e2d85 | 676 | /* The user didn't specify a command; give them help */ |
73e25e7c | 677 | commit_pager_choice(); |
3d7e2d85 SP |
678 | printf("usage: %s\n\n", git_usage_string); |
679 | list_common_cmds_help(); | |
421a9769 | 680 | printf("\n%s\n", _(git_more_info_string)); |
3d7e2d85 | 681 | exit(1); |
97fc6c5f | 682 | } |
6acbcb92 | 683 | cmd = argv[0]; |
231af832 LT |
684 | |
685 | /* | |
511707d4 | 686 | * We use PATH to find git commands, but we prepend some higher |
3ea3c215 | 687 | * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH |
511707d4 SP |
688 | * environment, and the $(gitexecdir) from the Makefile at build |
689 | * time. | |
231af832 | 690 | */ |
e1464ca7 | 691 | setup_path(); |
8e49d503 | 692 | |
a025463b | 693 | while (1) { |
8fa7975b | 694 | int was_alias = run_argv(&argc, &argv); |
a907e1b6 | 695 | if (errno != ENOENT) |
a025463b | 696 | break; |
a907e1b6 | 697 | if (was_alias) { |
fc045fe7 AS |
698 | fprintf(stderr, _("expansion of alias '%s' failed; " |
699 | "'%s' is not a git command\n"), | |
f3dd015c TT |
700 | cmd, argv[0]); |
701 | exit(1); | |
702 | } | |
a907e1b6 AS |
703 | if (!done_help) { |
704 | cmd = argv[0] = help_unknown_cmd(cmd); | |
705 | done_help = 1; | |
706 | } else | |
707 | break; | |
f3dd015c | 708 | } |
10b15b86 | 709 | |
fc045fe7 | 710 | fprintf(stderr, _("failed to run command '%s': %s\n"), |
33ebb871 | 711 | cmd, strerror(errno)); |
8e49d503 AE |
712 | |
713 | return 1; | |
714 | } |