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Commit | Line | Data |
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85023577 | 1 | #include "builtin.h" |
77cb17e9 | 2 | #include "exec_cmd.h" |
2b11e317 | 3 | #include "cache.h" |
575ba9d6 | 4 | #include "quote.h" |
8e49d503 | 5 | |
822a7d50 | 6 | const char git_usage_string[] = |
463a849d | 7 | "git [--version] [--exec-path[=GIT_EXEC_PATH]] [-p|--paginate|--no-pager] [--bare] [--git-dir=GIT_DIR] [--work-tree=GIT_WORK_TREE] [--help] COMMAND [ARGS]"; |
822a7d50 | 8 | |
b7d96819 TL |
9 | const char git_more_info_string[] = |
10 | "See 'git help COMMAND' for more information on a specific command."; | |
11 | ||
4394efec | 12 | static int handle_options(const char*** argv, int* argc, int* envchanged) |
4ab243a9 JS |
13 | { |
14 | int handled = 0; | |
15 | ||
16 | while (*argc > 0) { | |
17 | const char *cmd = (*argv)[0]; | |
18 | if (cmd[0] != '-') | |
19 | break; | |
20 | ||
6acbcb92 JS |
21 | /* |
22 | * For legacy reasons, the "version" and "help" | |
23 | * commands can be written with "--" prepended | |
24 | * to make them look like flags. | |
25 | */ | |
26 | if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version")) | |
27 | break; | |
28 | ||
29 | /* | |
30 | * Check remaining flags. | |
31 | */ | |
cc44c765 | 32 | if (!prefixcmp(cmd, "--exec-path")) { |
6acbcb92 JS |
33 | cmd += 11; |
34 | if (*cmd == '=') | |
384df833 | 35 | git_set_argv_exec_path(cmd + 1); |
6acbcb92 JS |
36 | else { |
37 | puts(git_exec_path()); | |
38 | exit(0); | |
39 | } | |
40 | } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) { | |
4ab243a9 | 41 | setup_pager(); |
463a849d MM |
42 | } else if (!strcmp(cmd, "--no-pager")) { |
43 | setenv("GIT_PAGER", "cat", 1); | |
44 | if (envchanged) | |
45 | *envchanged = 1; | |
6acbcb92 | 46 | } else if (!strcmp(cmd, "--git-dir")) { |
c321f00d BG |
47 | if (*argc < 2) { |
48 | fprintf(stderr, "No directory given for --git-dir.\n" ); | |
49 | usage(git_usage_string); | |
50 | } | |
45b09794 | 51 | setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1); |
4394efec ML |
52 | if (envchanged) |
53 | *envchanged = 1; | |
6acbcb92 JS |
54 | (*argv)++; |
55 | (*argc)--; | |
e4b02333 | 56 | handled++; |
cc44c765 | 57 | } else if (!prefixcmp(cmd, "--git-dir=")) { |
45b09794 | 58 | setenv(GIT_DIR_ENVIRONMENT, cmd + 10, 1); |
4394efec ML |
59 | if (envchanged) |
60 | *envchanged = 1; | |
892c41b9 ML |
61 | } else if (!strcmp(cmd, "--work-tree")) { |
62 | if (*argc < 2) { | |
63 | fprintf(stderr, "No directory given for --work-tree.\n" ); | |
64 | usage(git_usage_string); | |
65 | } | |
66 | setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1); | |
4394efec ML |
67 | if (envchanged) |
68 | *envchanged = 1; | |
892c41b9 ML |
69 | (*argv)++; |
70 | (*argc)--; | |
71 | } else if (!prefixcmp(cmd, "--work-tree=")) { | |
72 | setenv(GIT_WORK_TREE_ENVIRONMENT, cmd + 12, 1); | |
4394efec ML |
73 | if (envchanged) |
74 | *envchanged = 1; | |
6acbcb92 | 75 | } else if (!strcmp(cmd, "--bare")) { |
ef5ddb2f | 76 | static char git_dir[PATH_MAX+1]; |
6adcca3f | 77 | is_bare_repository_cfg = 1; |
9277d602 | 78 | setenv(GIT_DIR_ENVIRONMENT, getcwd(git_dir, sizeof(git_dir)), 0); |
4394efec ML |
79 | if (envchanged) |
80 | *envchanged = 1; | |
6acbcb92 JS |
81 | } else { |
82 | fprintf(stderr, "Unknown option: %s\n", cmd); | |
822a7d50 | 83 | usage(git_usage_string); |
6acbcb92 | 84 | } |
4ab243a9 JS |
85 | |
86 | (*argv)++; | |
87 | (*argc)--; | |
88 | handled++; | |
89 | } | |
90 | return handled; | |
91 | } | |
92 | ||
2b11e317 JS |
93 | static int split_cmdline(char *cmdline, const char ***argv) |
94 | { | |
95 | int src, dst, count = 0, size = 16; | |
96 | char quoted = 0; | |
97 | ||
3301521a | 98 | *argv = xmalloc(sizeof(char*) * size); |
2b11e317 JS |
99 | |
100 | /* split alias_string */ | |
101 | (*argv)[count++] = cmdline; | |
102 | for (src = dst = 0; cmdline[src];) { | |
103 | char c = cmdline[src]; | |
104 | if (!quoted && isspace(c)) { | |
105 | cmdline[dst++] = 0; | |
106 | while (cmdline[++src] | |
107 | && isspace(cmdline[src])) | |
108 | ; /* skip */ | |
109 | if (count >= size) { | |
110 | size += 16; | |
83572c1a | 111 | *argv = xrealloc(*argv, sizeof(char*) * size); |
2b11e317 JS |
112 | } |
113 | (*argv)[count++] = cmdline + dst; | |
114 | } else if(!quoted && (c == '\'' || c == '"')) { | |
115 | quoted = c; | |
116 | src++; | |
117 | } else if (c == quoted) { | |
118 | quoted = 0; | |
119 | src++; | |
120 | } else { | |
121 | if (c == '\\' && quoted != '\'') { | |
122 | src++; | |
123 | c = cmdline[src]; | |
124 | if (!c) { | |
125 | free(*argv); | |
126 | *argv = NULL; | |
127 | return error("cmdline ends with \\"); | |
128 | } | |
129 | } | |
130 | cmdline[dst++] = c; | |
131 | src++; | |
132 | } | |
133 | } | |
134 | ||
135 | cmdline[dst] = 0; | |
136 | ||
137 | if (quoted) { | |
138 | free(*argv); | |
139 | *argv = NULL; | |
140 | return error("unclosed quote"); | |
141 | } | |
142 | ||
143 | return count; | |
144 | } | |
145 | ||
146 | static int handle_alias(int *argcp, const char ***argv) | |
147 | { | |
af05d679 | 148 | int envchanged = 0, ret = 0, saved_errno = errno; |
2b11e317 | 149 | const char *subdir; |
0347a8c7 ML |
150 | int count, option_count; |
151 | const char** new_argv; | |
94351118 JK |
152 | const char *alias_command; |
153 | char *alias_string; | |
e85dc0a3 | 154 | int unused_nongit; |
2b11e317 | 155 | |
e85dc0a3 | 156 | subdir = setup_git_directory_gently(&unused_nongit); |
0347a8c7 ML |
157 | |
158 | alias_command = (*argv)[0]; | |
94351118 | 159 | alias_string = alias_lookup(alias_command); |
0347a8c7 | 160 | if (alias_string) { |
dfd42a3c | 161 | if (alias_string[0] == '!') { |
a2f8028d | 162 | if (*argcp > 1) { |
7a33bcbe | 163 | struct strbuf buf; |
a2f8028d | 164 | |
7a33bcbe PH |
165 | strbuf_init(&buf, PATH_MAX); |
166 | strbuf_addstr(&buf, alias_string); | |
b319ce4c | 167 | sq_quote_argv(&buf, (*argv) + 1, PATH_MAX); |
a2f8028d | 168 | free(alias_string); |
7a33bcbe | 169 | alias_string = buf.buf; |
a2f8028d | 170 | } |
dfd42a3c TT |
171 | trace_printf("trace: alias to shell cmd: %s => %s\n", |
172 | alias_command, alias_string + 1); | |
173 | ret = system(alias_string + 1); | |
174 | if (ret >= 0 && WIFEXITED(ret) && | |
175 | WEXITSTATUS(ret) != 127) | |
176 | exit(WEXITSTATUS(ret)); | |
177 | die("Failed to run '%s' when expanding alias '%s'\n", | |
178 | alias_string + 1, alias_command); | |
179 | } | |
0347a8c7 | 180 | count = split_cmdline(alias_string, &new_argv); |
4394efec ML |
181 | option_count = handle_options(&new_argv, &count, &envchanged); |
182 | if (envchanged) | |
183 | die("alias '%s' changes environment variables\n" | |
184 | "You can use '!git' in the alias to do this.", | |
185 | alias_command); | |
0347a8c7 ML |
186 | memmove(new_argv - option_count, new_argv, |
187 | count * sizeof(char *)); | |
188 | new_argv -= option_count; | |
189 | ||
190 | if (count < 1) | |
191 | die("empty alias for %s", alias_command); | |
192 | ||
193 | if (!strcmp(alias_command, new_argv[0])) | |
194 | die("recursive alias: %s", alias_command); | |
195 | ||
b319ce4c | 196 | trace_argv_printf(new_argv, |
6ce4e61f CC |
197 | "trace: alias expansion: %s =>", |
198 | alias_command); | |
575ba9d6 | 199 | |
83572c1a JF |
200 | new_argv = xrealloc(new_argv, sizeof(char*) * |
201 | (count + *argcp + 1)); | |
0347a8c7 ML |
202 | /* insert after command name */ |
203 | memcpy(new_argv + count, *argv + 1, sizeof(char*) * *argcp); | |
204 | new_argv[count+*argcp] = NULL; | |
2b11e317 | 205 | |
0347a8c7 ML |
206 | *argv = new_argv; |
207 | *argcp += count - 1; | |
2b11e317 | 208 | |
0347a8c7 | 209 | ret = 1; |
2b11e317 JS |
210 | } |
211 | ||
212 | if (subdir) | |
213 | chdir(subdir); | |
214 | ||
47e5c0ca JS |
215 | errno = saved_errno; |
216 | ||
2b11e317 JS |
217 | return ret; |
218 | } | |
219 | ||
70827b15 | 220 | const char git_version_string[] = GIT_VERSION; |
5b84f4d8 | 221 | |
efffea03 JH |
222 | #define RUN_SETUP (1<<0) |
223 | #define USE_PAGER (1<<1) | |
7eff28a9 SP |
224 | /* |
225 | * require working tree to be present -- anything uses this needs | |
226 | * RUN_SETUP for reading from the configuration file. | |
227 | */ | |
7ae3df8c | 228 | #define NEED_WORK_TREE (1<<2) |
a633fca0 | 229 | |
47d0b4ff LT |
230 | struct cmd_struct { |
231 | const char *cmd; | |
232 | int (*fn)(int, const char **, const char *); | |
233 | int option; | |
234 | }; | |
235 | ||
236 | static int run_command(struct cmd_struct *p, int argc, const char **argv) | |
237 | { | |
0f157315 LT |
238 | int status; |
239 | struct stat st; | |
47d0b4ff LT |
240 | const char *prefix; |
241 | ||
242 | prefix = NULL; | |
243 | if (p->option & RUN_SETUP) | |
244 | prefix = setup_git_directory(); | |
245 | if (p->option & USE_PAGER) | |
246 | setup_pager(); | |
59f0f2f3 MH |
247 | if (p->option & NEED_WORK_TREE) |
248 | setup_work_tree(); | |
249 | ||
b319ce4c | 250 | trace_argv_printf(argv, "trace: built-in: git"); |
47d0b4ff | 251 | |
0f157315 LT |
252 | status = p->fn(argc, argv, prefix); |
253 | if (status) | |
2488df84 | 254 | return status & 0xff; |
0f157315 LT |
255 | |
256 | /* Somebody closed stdout? */ | |
257 | if (fstat(fileno(stdout), &st)) | |
258 | return 0; | |
259 | /* Ignore write errors for pipes and sockets.. */ | |
260 | if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode)) | |
261 | return 0; | |
262 | ||
263 | /* Check for ENOSPC and EIO errors.. */ | |
0227f988 | 264 | if (fflush(stdout)) |
0f157315 | 265 | die("write failure on standard output: %s", strerror(errno)); |
0227f988 LT |
266 | if (ferror(stdout)) |
267 | die("unknown write failure on standard output"); | |
268 | if (fclose(stdout)) | |
269 | die("close failed on standard output: %s", strerror(errno)); | |
0f157315 | 270 | return 0; |
47d0b4ff LT |
271 | } |
272 | ||
273 | static void handle_internal_command(int argc, const char **argv) | |
231af832 LT |
274 | { |
275 | const char *cmd = argv[0]; | |
47d0b4ff | 276 | static struct cmd_struct commands[] = { |
7ae3df8c | 277 | { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE }, |
d97bc5de | 278 | { "annotate", cmd_annotate, RUN_SETUP }, |
f754fa9c | 279 | { "apply", cmd_apply }, |
265d5280 | 280 | { "archive", cmd_archive }, |
4f0219a4 | 281 | { "blame", cmd_blame, RUN_SETUP }, |
1da1b3a3 | 282 | { "branch", cmd_branch, RUN_SETUP }, |
2e0afafe | 283 | { "bundle", cmd_bundle }, |
efffea03 | 284 | { "cat-file", cmd_cat_file, RUN_SETUP }, |
782c2d65 | 285 | { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE }, |
4465f410 JS |
286 | { "checkout-index", cmd_checkout_index, |
287 | RUN_SETUP | NEED_WORK_TREE}, | |
0864f264 | 288 | { "check-ref-format", cmd_check_ref_format }, |
2d35d556 | 289 | { "check-attr", cmd_check_attr, RUN_SETUP }, |
e827633a | 290 | { "cherry", cmd_cherry, RUN_SETUP }, |
7ae3df8c | 291 | { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE }, |
8434c2f1 | 292 | { "clone", cmd_clone }, |
113f10f2 | 293 | { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE }, |
f5bbc322 | 294 | { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE }, |
efffea03 | 295 | { "commit-tree", cmd_commit_tree, RUN_SETUP }, |
e0d10e1c | 296 | { "config", cmd_config }, |
8112894d | 297 | { "count-objects", cmd_count_objects, RUN_SETUP }, |
9a0eaf83 | 298 | { "describe", cmd_describe, RUN_SETUP }, |
89d07f75 | 299 | { "diff", cmd_diff }, |
6304c29d | 300 | { "diff-files", cmd_diff_files, RUN_SETUP }, |
efffea03 | 301 | { "diff-index", cmd_diff_index, RUN_SETUP }, |
efffea03 | 302 | { "diff-tree", cmd_diff_tree, RUN_SETUP }, |
f2dc849e | 303 | { "fast-export", cmd_fast_export, RUN_SETUP }, |
b888d61c | 304 | { "fetch", cmd_fetch, RUN_SETUP }, |
2d4177c0 | 305 | { "fetch-pack", cmd_fetch_pack, RUN_SETUP }, |
d4289fff | 306 | { "fetch--tool", cmd_fetch__tool, RUN_SETUP }, |
efffea03 | 307 | { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP }, |
9f613ddd | 308 | { "for-each-ref", cmd_for_each_ref, RUN_SETUP }, |
efffea03 | 309 | { "format-patch", cmd_format_patch, RUN_SETUP }, |
b4dfefe0 MW |
310 | { "fsck", cmd_fsck, RUN_SETUP }, |
311 | { "fsck-objects", cmd_fsck, RUN_SETUP }, | |
6757ada4 | 312 | { "gc", cmd_gc, RUN_SETUP }, |
f754fa9c | 313 | { "get-tar-commit-id", cmd_get_tar_commit_id }, |
34c6a82b | 314 | { "grep", cmd_grep, RUN_SETUP | USE_PAGER }, |
f754fa9c | 315 | { "help", cmd_help }, |
30ae764b DB |
316 | #ifndef NO_CURL |
317 | { "http-fetch", cmd_http_fetch, RUN_SETUP }, | |
318 | #endif | |
515377ea | 319 | { "init", cmd_init_db }, |
f754fa9c | 320 | { "init-db", cmd_init_db }, |
efffea03 JH |
321 | { "log", cmd_log, RUN_SETUP | USE_PAGER }, |
322 | { "ls-files", cmd_ls_files, RUN_SETUP }, | |
323 | { "ls-tree", cmd_ls_tree, RUN_SETUP }, | |
8951d7c1 | 324 | { "ls-remote", cmd_ls_remote }, |
f754fa9c JH |
325 | { "mailinfo", cmd_mailinfo }, |
326 | { "mailsplit", cmd_mailsplit }, | |
71dfbf22 | 327 | { "merge-base", cmd_merge_base, RUN_SETUP }, |
ba1f5f35 | 328 | { "merge-file", cmd_merge_file }, |
a00a42ae | 329 | { "merge-ours", cmd_merge_ours, RUN_SETUP }, |
e1b3a2ca | 330 | { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE }, |
1736855c | 331 | { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE }, |
7ae3df8c | 332 | { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE }, |
efffea03 JH |
333 | { "name-rev", cmd_name_rev, RUN_SETUP }, |
334 | { "pack-objects", cmd_pack_objects, RUN_SETUP }, | |
8951d7c1 | 335 | { "peek-remote", cmd_ls_remote }, |
d97bc5de | 336 | { "pickaxe", cmd_blame, RUN_SETUP }, |
efffea03 JH |
337 | { "prune", cmd_prune, RUN_SETUP }, |
338 | { "prune-packed", cmd_prune_packed, RUN_SETUP }, | |
102cb085 | 339 | { "push", cmd_push, RUN_SETUP }, |
efffea03 | 340 | { "read-tree", cmd_read_tree, RUN_SETUP }, |
4264dc15 | 341 | { "reflog", cmd_reflog, RUN_SETUP }, |
211c8968 | 342 | { "remote", cmd_remote, RUN_SETUP }, |
e0d10e1c | 343 | { "repo-config", cmd_config }, |
658f3650 | 344 | { "rerere", cmd_rerere, RUN_SETUP }, |
0e5a7faa | 345 | { "reset", cmd_reset, RUN_SETUP }, |
efffea03 | 346 | { "rev-list", cmd_rev_list, RUN_SETUP }, |
5410a02a | 347 | { "rev-parse", cmd_rev_parse }, |
7ae3df8c | 348 | { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE }, |
271bb087 | 349 | { "rm", cmd_rm, RUN_SETUP }, |
96249c04 | 350 | { "send-pack", cmd_send_pack, RUN_SETUP }, |
abe549e1 | 351 | { "shortlog", cmd_shortlog, USE_PAGER }, |
efffea03 JH |
352 | { "show-branch", cmd_show_branch, RUN_SETUP }, |
353 | { "show", cmd_show, RUN_SETUP | USE_PAGER }, | |
c8af1de9 | 354 | { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE | USE_PAGER }, |
f754fa9c | 355 | { "stripspace", cmd_stripspace }, |
efffea03 | 356 | { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP }, |
62e09ce9 | 357 | { "tag", cmd_tag, RUN_SETUP }, |
9cb90b80 | 358 | { "tar-tree", cmd_tar_tree }, |
efffea03 JH |
359 | { "unpack-objects", cmd_unpack_objects, RUN_SETUP }, |
360 | { "update-index", cmd_update_index, RUN_SETUP }, | |
361 | { "update-ref", cmd_update_ref, RUN_SETUP }, | |
39345a21 | 362 | { "upload-archive", cmd_upload_archive }, |
2ae68fcb | 363 | { "verify-tag", cmd_verify_tag, RUN_SETUP }, |
f754fa9c | 364 | { "version", cmd_version }, |
efffea03 JH |
365 | { "whatchanged", cmd_whatchanged, RUN_SETUP | USE_PAGER }, |
366 | { "write-tree", cmd_write_tree, RUN_SETUP }, | |
2e3ed670 | 367 | { "verify-pack", cmd_verify_pack }, |
358ddb62 | 368 | { "show-ref", cmd_show_ref, RUN_SETUP }, |
e1e22e37 | 369 | { "pack-refs", cmd_pack_refs, RUN_SETUP }, |
231af832 LT |
370 | }; |
371 | int i; | |
372 | ||
1cd95087 LT |
373 | /* Turn "git cmd --help" into "git help cmd" */ |
374 | if (argc > 1 && !strcmp(argv[1], "--help")) { | |
375 | argv[1] = argv[0]; | |
376 | argv[0] = cmd = "help"; | |
377 | } | |
378 | ||
231af832 LT |
379 | for (i = 0; i < ARRAY_SIZE(commands); i++) { |
380 | struct cmd_struct *p = commands+i; | |
381 | if (strcmp(p->cmd, cmd)) | |
382 | continue; | |
47d0b4ff | 383 | exit(run_command(p, argc, argv)); |
231af832 LT |
384 | } |
385 | } | |
386 | ||
47d0b4ff | 387 | int main(int argc, const char **argv) |
8e49d503 | 388 | { |
5b6df8e4 | 389 | const char *cmd = argv[0] ? argv[0] : "git-help"; |
231af832 | 390 | char *slash = strrchr(cmd, '/'); |
511707d4 | 391 | const char *cmd_path = NULL; |
a025463b | 392 | int done_alias = 0; |
231af832 LT |
393 | |
394 | /* | |
395 | * Take the basename of argv[0] as the command | |
396 | * name, and the dirname as the default exec_path | |
43db492a | 397 | * if we don't have anything better. |
231af832 LT |
398 | */ |
399 | if (slash) { | |
400 | *slash++ = 0; | |
511707d4 | 401 | cmd_path = cmd; |
231af832 LT |
402 | cmd = slash; |
403 | } | |
8e49d503 | 404 | |
231af832 LT |
405 | /* |
406 | * "git-xxxx" is the same as "git xxxx", but we obviously: | |
407 | * | |
408 | * - cannot take flags in between the "git" and the "xxxx". | |
409 | * - cannot execute it externally (since it would just do | |
410 | * the same thing over again) | |
411 | * | |
412 | * So we just directly call the internal command handler, and | |
413 | * die if that one cannot handle it. | |
414 | */ | |
cc44c765 | 415 | if (!prefixcmp(cmd, "git-")) { |
231af832 LT |
416 | cmd += 4; |
417 | argv[0] = cmd; | |
47d0b4ff | 418 | handle_internal_command(argc, argv); |
231af832 LT |
419 | die("cannot handle %s internally", cmd); |
420 | } | |
8e49d503 | 421 | |
231af832 | 422 | /* Look for flags.. */ |
6acbcb92 JS |
423 | argv++; |
424 | argc--; | |
4394efec | 425 | handle_options(&argv, &argc, NULL); |
6acbcb92 | 426 | if (argc > 0) { |
cc44c765 | 427 | if (!prefixcmp(argv[0], "--")) |
6acbcb92 JS |
428 | argv[0] += 2; |
429 | } else { | |
3d7e2d85 SP |
430 | /* The user didn't specify a command; give them help */ |
431 | printf("usage: %s\n\n", git_usage_string); | |
432 | list_common_cmds_help(); | |
b7d96819 | 433 | printf("\n%s\n", git_more_info_string); |
3d7e2d85 | 434 | exit(1); |
97fc6c5f | 435 | } |
6acbcb92 | 436 | cmd = argv[0]; |
231af832 LT |
437 | |
438 | /* | |
511707d4 SP |
439 | * We use PATH to find git commands, but we prepend some higher |
440 | * precidence paths: the "--exec-path" option, the GIT_EXEC_PATH | |
441 | * environment, and the $(gitexecdir) from the Makefile at build | |
442 | * time. | |
231af832 | 443 | */ |
511707d4 | 444 | setup_path(cmd_path); |
8e49d503 | 445 | |
a025463b JH |
446 | while (1) { |
447 | /* See if it's an internal command */ | |
47d0b4ff | 448 | handle_internal_command(argc, argv); |
2b11e317 | 449 | |
a025463b JH |
450 | /* .. then try the external ones */ |
451 | execv_git_cmd(argv); | |
231af832 | 452 | |
a025463b JH |
453 | /* It could be an alias -- this works around the insanity |
454 | * of overriding "git log" with "git show" by having | |
455 | * alias.log = show | |
456 | */ | |
457 | if (done_alias || !handle_alias(&argc, &argv)) | |
458 | break; | |
459 | done_alias = 1; | |
460 | } | |
10b15b86 | 461 | |
f3dd015c TT |
462 | if (errno == ENOENT) { |
463 | if (done_alias) { | |
464 | fprintf(stderr, "Expansion of alias '%s' failed; " | |
465 | "'%s' is not a git-command\n", | |
466 | cmd, argv[0]); | |
467 | exit(1); | |
468 | } | |
822a7d50 | 469 | help_unknown_cmd(cmd); |
f3dd015c | 470 | } |
10b15b86 AR |
471 | |
472 | fprintf(stderr, "Failed to run command '%s': %s\n", | |
33ebb871 | 473 | cmd, strerror(errno)); |
8e49d503 AE |
474 | |
475 | return 1; | |
476 | } |