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chromium / external / github.com / git / git / refs/tags/v2.37.0 / . / git.c
blob: d7a7a82008b41e80c17176a9865ff49bf538031a [file] [log] [blame]
Junio C Hamano85023572006-12-19 22:34:12[diff] [blame]1#include "builtin.h"
Brandon Williamsb2141fc2017-06-14 18:07:36[diff] [blame]2#include "config.h"
Stefan Bellerd807c4a2018-04-10 21:26:18[diff] [blame]3#include "exec-cmd.h"
Thiago Farinafd5c3632010-09-01 02:29:08[diff] [blame]4#include "help.h"
Jeff Kingd8e96fd2009-01-28 07:38:14[diff] [blame]5#include "run-command.h"
Nguyễn Thái Ngọc Duy65b5f942018-05-20 18:40:06[diff] [blame]6#include "alias.h"
Taylor Blau120ad2b2020-04-30 19:48:50[diff] [blame]7#include "shallow.h"
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]8
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 20:35:18[diff] [blame]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)
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]19#define NO_PARSEOPT (1<<6) /* parse-options is not used */
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 20:35:18[diff] [blame]20
21struct cmd_struct {
22 const char *cmd;
23 int (*fn)(int, const char **, const char *);
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]24 unsigned int option;
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 20:35:18[diff] [blame]25};
26
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]27const char git_usage_string[] =
Garrit Franke6b52f482022-03-31 21:27:09[diff] [blame]28 N_("git [-v | --version] [-h | --help] [-C <path>] [-c <name>=<value>]\n"
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]29 " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
Johannes Sixt7213c282018-05-03 17:15:08[diff] [blame]30 " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n"
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]31 " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
Patrick Steinhardtce81b1d2021-01-12 12:26:45[diff] [blame]32 " [--super-prefix=<path>] [--config-env=<name>=<envvar>]\n"
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]33 " <command> [<args>]");
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]34
Teemu Likonenb7d96812008-06-05 21:15:36[diff] [blame]35const char git_more_info_string[] =
Alex Henriead5fe372014-08-30 19:56:01[diff] [blame]36 N_("'git help -a' and 'git help -g' list available subcommands and some\n"
Philip Oakley73903d02013-04-02 22:39:48[diff] [blame]37 "concept guides. See 'git help <command>' or 'git help <concept>'\n"
Philip Oakleye55f36b2019-05-15 22:47:08[diff] [blame]38 "to read about a specific subcommand or concept.\n"
39 "See 'git help git' for an overview of the system.");
Teemu Likonenb7d96812008-06-05 21:15:36[diff] [blame]40
Jeff King4e107382008-07-03 11:46:57[diff] [blame]41static int use_pager = -1;
Nguyễn Thái Ngọc Duyc0562612014-06-08 09:37:10[diff] [blame]42
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]43static void list_builtins(struct string_list *list, unsigned int exclude_option);
Jeff King8893fd92017-05-30 05:18:43[diff] [blame]44
Nguyễn Thái Ngọc Duye11dca12018-05-20 18:40:07[diff] [blame]45static 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
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]57static 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
64static int list_cmds(const char *spec)
65{
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]66 struct string_list list = STRING_LIST_INIT_DUP;
67 int i;
Jeff King83b0ecf2019-03-20 18:03:26[diff] [blame]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);
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]75
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]76 while (*spec) {
77 const char *sep = strchrnul(spec, ',');
78 int len = sep - spec;
79
80 if (match_token(spec, len, "builtins"))
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]81 list_builtins(&list, 0);
Nguyễn Thái Ngọc Duy6bb2dc02018-05-20 18:39:59[diff] [blame]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);
Nguyễn Thái Ngọc Duye11dca12018-05-20 18:40:07[diff] [blame]86 else if (match_token(spec, len, "nohelpers"))
87 exclude_helpers_from_list(&list);
Nguyễn Thái Ngọc Duy3301d362018-05-20 18:40:08[diff] [blame]88 else if (match_token(spec, len, "alias"))
89 list_aliases(&list);
Nguyễn Thái Ngọc Duy6532f372018-05-20 18:40:09[diff] [blame]90 else if (match_token(spec, len, "config"))
91 list_cmds_by_config(&list);
Nguyễn Thái Ngọc Duy3c777762018-05-20 18:40:00[diff] [blame]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 }
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]99 else
100 die(_("unsupported command listing type '%s'"), spec);
101 spec += len;
102 if (*spec == ',')
103 spec++;
104 }
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]105 for (i = 0; i < list.nr; i++)
106 puts(list.items[i].string);
107 string_list_clear(&list, 0);
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]108 return 0;
109}
Jeff King8893fd92017-05-30 05:18:43[diff] [blame]110
Nguyễn Thái Ngọc Duy3b335762018-12-09 10:25:21[diff] [blame]111static void commit_pager_choice(void)
112{
Jeff King4e107382008-07-03 11:46:57[diff] [blame]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
Martin Ågren033fe3d2017-08-02 19:40:51[diff] [blame]125void 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
Felipe Contreras4b25d092009-05-01 09:06:36[diff] [blame]135static int handle_options(const char ***argv, int *argc, int *envchanged)
Johannes Schindelin4ab243a2006-07-24 12:10:45[diff] [blame]136{
Junio C Hamano73546c02011-05-24 22:50:35[diff] [blame]137 const char **orig_argv = *argv;
Johannes Schindelin4ab243a2006-07-24 12:10:45[diff] [blame]138
139 while (*argc > 0) {
140 const char *cmd = (*argv)[0];
141 if (cmd[0] != '-')
142 break;
143
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]144 /*
145 * For legacy reasons, the "version" and "help"
146 * commands can be written with "--" prepended
147 * to make them look like flags.
148 */
Garrit Franke6b52f482022-03-31 21:27:09[diff] [blame]149 if (!strcmp(cmd, "--help") || !strcmp(cmd, "-h") ||
150 !strcmp(cmd, "--version") || !strcmp(cmd, "-v"))
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]151 break;
152
153 /*
154 * Check remaining flags.
155 */
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]156 if (skip_prefix(cmd, "--exec-path", &cmd)) {
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]157 if (*cmd == '=')
Dan Jacques226c0dd2018-04-10 15:05:44[diff] [blame]158 git_set_exec_path(cmd + 1);
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]159 else {
160 puts(git_exec_path());
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]161 trace2_cmd_name("_query_");
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]162 exit(0);
163 }
Markus Heidelberg89a56bf2009-04-05 02:15:16[diff] [blame]164 } else if (!strcmp(cmd, "--html-path")) {
165 puts(system_path(GIT_HTML_PATH));
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]166 trace2_cmd_name("_query_");
Markus Heidelberg89a56bf2009-04-05 02:15:16[diff] [blame]167 exit(0);
Jon Seymourf2dd8c32011-05-01 08:16:25[diff] [blame]168 } else if (!strcmp(cmd, "--man-path")) {
169 puts(system_path(GIT_MAN_PATH));
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]170 trace2_cmd_name("_query_");
Jon Seymourf2dd8c32011-05-01 08:16:25[diff] [blame]171 exit(0);
172 } else if (!strcmp(cmd, "--info-path")) {
173 puts(system_path(GIT_INFO_PATH));
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]174 trace2_cmd_name("_query_");
Jon Seymourf2dd8c32011-05-01 08:16:25[diff] [blame]175 exit(0);
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]176 } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
Jeff King4e107382008-07-03 11:46:57[diff] [blame]177 use_pager = 1;
Johannes Sixt7213c282018-05-03 17:15:08[diff] [blame]178 } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) {
Jeff King4e107382008-07-03 11:46:57[diff] [blame]179 use_pager = 0;
Matthieu Moy463a8492007-08-19 17:24:36[diff] [blame]180 if (envchanged)
181 *envchanged = 1;
Christian Couderb0fa7ab2009-10-12 20:30:32[diff] [blame]182 } else if (!strcmp(cmd, "--no-replace-objects")) {
Jeff King6ebd1ca2018-07-18 20:45:20[diff] [blame]183 read_replace_refs = 0;
Christian Couder6476b382009-11-18 06:50:58[diff] [blame]184 setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1);
185 if (envchanged)
186 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]187 } else if (!strcmp(cmd, "--git-dir")) {
Brian Gernhardtc321f002006-12-22 13:56:25[diff] [blame]188 if (*argc < 2) {
Jean-Noël Avila986cd652022-01-05 20:02:20[diff] [blame]189 fprintf(stderr, _("no directory given for '%s' option\n" ), "--git-dir");
Brian Gernhardtc321f002006-12-22 13:56:25[diff] [blame]190 usage(git_usage_string);
191 }
Shawn O. Pearce45b09792006-12-31 04:29:11[diff] [blame]192 setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1);
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]193 if (envchanged)
194 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]195 (*argv)++;
196 (*argc)--;
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]197 } else if (skip_prefix(cmd, "--git-dir=", &cmd)) {
198 setenv(GIT_DIR_ENVIRONMENT, cmd, 1);
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]199 if (envchanged)
200 *envchanged = 1;
Josh Tripletta1bea2c2011-07-05 17:54:44[diff] [blame]201 } else if (!strcmp(cmd, "--namespace")) {
202 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]203 fprintf(stderr, _("no namespace given for --namespace\n" ));
Josh Tripletta1bea2c2011-07-05 17:54:44[diff] [blame]204 usage(git_usage_string);
205 }
206 setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1);
207 if (envchanged)
208 *envchanged = 1;
209 (*argv)++;
210 (*argc)--;
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]211 } else if (skip_prefix(cmd, "--namespace=", &cmd)) {
212 setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1);
Josh Tripletta1bea2c2011-07-05 17:54:44[diff] [blame]213 if (envchanged)
214 *envchanged = 1;
Matthias Lederhofer892c41b2007-06-06 07:10:42[diff] [blame]215 } else if (!strcmp(cmd, "--work-tree")) {
216 if (*argc < 2) {
Jean-Noël Avila986cd652022-01-05 20:02:20[diff] [blame]217 fprintf(stderr, _("no directory given for '%s' option\n" ), "--work-tree");
Matthias Lederhofer892c41b2007-06-06 07:10:42[diff] [blame]218 usage(git_usage_string);
219 }
220 setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1);
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]221 if (envchanged)
222 *envchanged = 1;
Matthias Lederhofer892c41b2007-06-06 07:10:42[diff] [blame]223 (*argv)++;
224 (*argc)--;
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]225 } else if (skip_prefix(cmd, "--work-tree=", &cmd)) {
226 setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1);
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]227 if (envchanged)
228 *envchanged = 1;
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]229 } else if (!strcmp(cmd, "--super-prefix")) {
230 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]231 fprintf(stderr, _("no prefix given for --super-prefix\n" ));
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]232 usage(git_usage_string);
233 }
234 setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1);
235 if (envchanged)
236 *envchanged = 1;
237 (*argv)++;
238 (*argc)--;
239 } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) {
240 setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1);
241 if (envchanged)
242 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]243 } else if (!strcmp(cmd, "--bare")) {
René Scharfe4d3ab442014-07-28 18:31:57[diff] [blame]244 char *cwd = xgetcwd();
Junio C Hamano6adcca32007-08-27 07:58:06[diff] [blame]245 is_bare_repository_cfg = 1;
René Scharfe4d3ab442014-07-28 18:31:57[diff] [blame]246 setenv(GIT_DIR_ENVIRONMENT, cwd, 0);
247 free(cwd);
Jeff King2cd83d12013-03-08 09:32:22[diff] [blame]248 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]249 if (envchanged)
250 *envchanged = 1;
Alex Riesen8b1fa772010-03-26 22:53:57[diff] [blame]251 } else if (!strcmp(cmd, "-c")) {
252 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]253 fprintf(stderr, _("-c expects a configuration string\n" ));
Alex Riesen8b1fa772010-03-26 22:53:57[diff] [blame]254 usage(git_usage_string);
255 }
Jeff King2b64fc82010-08-23 19:16:00[diff] [blame]256 git_config_push_parameter((*argv)[1]);
Alex Riesen8b1fa772010-03-26 22:53:57[diff] [blame]257 (*argv)++;
258 (*argc)--;
Patrick Steinhardtc3315512021-04-29 12:55:34[diff] [blame]259 } else if (!strcmp(cmd, "--config-env")) {
260 if (*argc < 2) {
261 fprintf(stderr, _("no config key given for --config-env\n" ));
262 usage(git_usage_string);
263 }
264 git_config_push_env((*argv)[1]);
265 (*argv)++;
266 (*argc)--;
Patrick Steinhardtce81b1d2021-01-12 12:26:45[diff] [blame]267 } else if (skip_prefix(cmd, "--config-env=", &cmd)) {
268 git_config_push_env(cmd);
Jeff King823ab402012-12-19 22:37:30[diff] [blame]269 } else if (!strcmp(cmd, "--literal-pathspecs")) {
270 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1);
271 if (envchanged)
272 *envchanged = 1;
273 } else if (!strcmp(cmd, "--no-literal-pathspecs")) {
274 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1);
275 if (envchanged)
276 *envchanged = 1;
Nguyễn Thái Ngọc Duybd30c2e2013-07-14 08:36:08[diff] [blame]277 } else if (!strcmp(cmd, "--glob-pathspecs")) {
278 setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1);
279 if (envchanged)
280 *envchanged = 1;
281 } else if (!strcmp(cmd, "--noglob-pathspecs")) {
282 setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1);
283 if (envchanged)
284 *envchanged = 1;
Nguyễn Thái Ngọc Duy93d93532013-07-14 08:36:09[diff] [blame]285 } else if (!strcmp(cmd, "--icase-pathspecs")) {
286 setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1);
287 if (envchanged)
288 *envchanged = 1;
Jeff King27344d62017-09-27 06:54:30[diff] [blame]289 } else if (!strcmp(cmd, "--no-optional-locks")) {
290 setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1);
291 if (envchanged)
292 *envchanged = 1;
Nguyễn Thái Ngọc Duy6035d6a2013-05-26 01:16:15[diff] [blame]293 } else if (!strcmp(cmd, "--shallow-file")) {
294 (*argv)++;
295 (*argc)--;
Stefan Beller6a2df512018-05-17 22:51:43[diff] [blame]296 set_alternate_shallow_file(the_repository, (*argv)[0], 1);
Nguyễn Thái Ngọc Duy6035d6a2013-05-26 01:16:15[diff] [blame]297 if (envchanged)
298 *envchanged = 1;
Nazri Ramliy44e1e4d2013-09-09 13:47:43[diff] [blame]299 } else if (!strcmp(cmd, "-C")) {
300 if (*argc < 2) {
Jean-Noël Avila986cd652022-01-05 20:02:20[diff] [blame]301 fprintf(stderr, _("no directory given for '%s' option\n" ), "-C");
Nazri Ramliy44e1e4d2013-09-09 13:47:43[diff] [blame]302 usage(git_usage_string);
303 }
Karthik Nayak6a536e22015-03-06 11:18:08[diff] [blame]304 if ((*argv)[1][0]) {
305 if (chdir((*argv)[1]))
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]306 die_errno("cannot change to '%s'", (*argv)[1]);
Karthik Nayak6a536e22015-03-06 11:18:08[diff] [blame]307 if (envchanged)
308 *envchanged = 1;
309 }
Nazri Ramliy44e1e4d2013-09-09 13:47:43[diff] [blame]310 (*argv)++;
311 (*argc)--;
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]312 } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) {
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]313 trace2_cmd_name("_query_");
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]314 if (!strcmp(cmd, "parseopt")) {
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]315 struct string_list list = STRING_LIST_INIT_DUP;
316 int i;
317
318 list_builtins(&list, NO_PARSEOPT);
319 for (i = 0; i < list.nr; i++)
320 printf("%s ", list.items[i].string);
321 string_list_clear(&list, 0);
Nguyễn Thái Ngọc Duy00895212018-05-20 18:39:57[diff] [blame]322 exit(0);
323 } else {
324 exit(list_cmds(cmd));
325 }
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]326 } else {
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]327 fprintf(stderr, _("unknown option: %s\n"), cmd);
Ramsay Allan Jones822a7d52006-07-30 21:42:25[diff] [blame]328 usage(git_usage_string);
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]329 }
Johannes Schindelin4ab243a2006-07-24 12:10:45[diff] [blame]330
331 (*argv)++;
332 (*argc)--;
Johannes Schindelin4ab243a2006-07-24 12:10:45[diff] [blame]333 }
Junio C Hamano73546c02011-05-24 22:50:35[diff] [blame]334 return (*argv) - orig_argv;
Johannes Schindelin4ab243a2006-07-24 12:10:45[diff] [blame]335}
336
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]337static int handle_alias(int *argcp, const char ***argv)
338{
SZEDER Gáboraf05d672008-03-25 21:06:26[diff] [blame]339 int envchanged = 0, ret = 0, saved_errno = errno;
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]340 int count, option_count;
Felipe Contreras4b25d092009-05-01 09:06:36[diff] [blame]341 const char **new_argv;
Jeff King94351112008-02-24 22:17:14[diff] [blame]342 const char *alias_command;
343 char *alias_string;
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]344
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]345 alias_command = (*argv)[0];
Jeff King94351112008-02-24 22:17:14[diff] [blame]346 alias_string = alias_lookup(alias_command);
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]347 if (alias_string) {
Rasmus Villemoesa9a60b92018-10-09 11:59:08[diff] [blame]348 if (*argcp > 1 && !strcmp((*argv)[1], "-h"))
349 fprintf_ln(stderr, _("'%s' is aliased to '%s'"),
350 alias_command, alias_string);
Theodore Ts'odfd42a32007-02-11 00:33:58[diff] [blame]351 if (alias_string[0] == '!') {
Jeff King850d2fe2016-02-22 22:44:21[diff] [blame]352 struct child_process child = CHILD_PROCESS_INIT;
Johannes Schindelina9bcf652017-06-14 11:36:00[diff] [blame]353 int nongit_ok;
354
355 /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */
356 setup_git_directory_gently(&nongit_ok);
Johannes Schindelina2f80282007-07-01 21:51:58[diff] [blame]357
Erik Faye-Lund7f51f8b2011-01-06 23:00:38[diff] [blame]358 commit_pager_choice();
359
Jeff King850d2fe2016-02-22 22:44:21[diff] [blame]360 child.use_shell = 1;
Trygve Aabergec0d73a52020-07-07 12:17:15[diff] [blame]361 child.clean_on_exit = 1;
362 child.wait_after_clean = 1;
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]363 child.trace2_child_class = "shell_alias";
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]364 strvec_push(&child.args, alias_string + 1);
365 strvec_pushv(&child.args, (*argv) + 1);
Erik Faye-Lund7f51f8b2011-01-06 23:00:38[diff] [blame]366
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]367 trace2_cmd_alias(alias_command, child.args.v);
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]368 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 21:06:15[diff] [blame]369 trace2_cmd_list_env_vars();
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]370 trace2_cmd_name("_run_shell_alias_");
371
Jeff King850d2fe2016-02-22 22:44:21[diff] [blame]372 ret = run_command(&child);
Erik Faye-Lund7f51f8b2011-01-06 23:00:38[diff] [blame]373 if (ret >= 0) /* normal exit */
374 exit(ret);
375
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]376 die_errno(_("while expanding alias '%s': '%s'"),
377 alias_command, alias_string + 1);
Theodore Ts'odfd42a32007-02-11 00:33:58[diff] [blame]378 }
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]379 count = split_cmdline(alias_string, &new_argv);
Deskin Millerdc4179f2008-09-22 15:06:41[diff] [blame]380 if (count < 0)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]381 die(_("bad alias.%s string: %s"), alias_command,
Nguyễn Thái Ngọc Duya7412ae2018-11-10 05:16:01[diff] [blame]382 _(split_cmdline_strerror(count)));
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]383 option_count = handle_options(&new_argv, &count, &envchanged);
384 if (envchanged)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]385 die(_("alias '%s' changes environment variables.\n"
386 "You can use '!git' in the alias to do this"),
387 alias_command);
René Scharfe7bd97d62019-09-19 20:48:30[diff] [blame]388 MOVE_ARRAY(new_argv - option_count, new_argv, count);
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]389 new_argv -= option_count;
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]390
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]391 if (count < 1)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]392 die(_("empty alias for %s"), alias_command);
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]393
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]394 if (!strcmp(alias_command, new_argv[0]))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]395 die(_("recursive alias: %s"), alias_command);
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]396
Christian Couderb319ce42007-12-03 04:51:50[diff] [blame]397 trace_argv_printf(new_argv,
Christian Couder6ce4e612006-09-02 16:23:48[diff] [blame]398 "trace: alias expansion: %s =>",
399 alias_command);
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]400
René Scharfe2756ca42014-09-16 18:56:57[diff] [blame]401 REALLOC_ARRAY(new_argv, count + *argcp);
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]402 /* insert after command name */
René Scharfe7bd97d62019-09-19 20:48:30[diff] [blame]403 COPY_ARRAY(new_argv + count, *argv + 1, *argcp);
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]404
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]405 trace2_cmd_alias(alias_command, new_argv);
406 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 21:06:15[diff] [blame]407 trace2_cmd_list_env_vars();
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]408
Matthias Lederhofer0347a8c2006-07-30 01:30:29[diff] [blame]409 *argv = new_argv;
410 *argcp += count - 1;
411
412 ret = 1;
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]413 }
414
Johannes Schindelin47e5c0c2006-06-28 10:45:27[diff] [blame]415 errno = saved_errno;
416
Johannes Schindelin2b11e312006-06-05 17:43:52[diff] [blame]417 return ret;
418}
419
Jeff Kingf172f332009-01-28 07:33:53[diff] [blame]420static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
Linus Torvalds47d0b4f2007-06-24 17:10:40[diff] [blame]421{
Jonathan Nieder99caeed2009-11-09 15:05:01[diff] [blame]422 int status, help;
Linus Torvalds0f157312007-06-24 17:29:33[diff] [blame]423 struct stat st;
Linus Torvalds47d0b4f2007-06-24 17:10:40[diff] [blame]424 const char *prefix;
Lessley Denningtone5b17bd2021-12-06 15:55:55[diff] [blame]425 int run_setup = (p->option & (RUN_SETUP | RUN_SETUP_GENTLY));
Linus Torvalds47d0b4f2007-06-24 17:10:40[diff] [blame]426
Jonathan Nieder99caeed2009-11-09 15:05:01[diff] [blame]427 help = argc == 2 && !strcmp(argv[1], "-h");
Lessley Denningtone5b17bd2021-12-06 15:55:55[diff] [blame]428 if (help && (run_setup & RUN_SETUP))
429 /* demote to GENTLY to allow 'git cmd -h' outside repo */
430 run_setup = RUN_SETUP_GENTLY;
Nguyễn Thái Ngọc Duya9ca8a82010-11-26 15:31:57[diff] [blame]431
Lessley Denningtone5b17bd2021-12-06 15:55:55[diff] [blame]432 if (run_setup & RUN_SETUP) {
433 prefix = setup_git_directory();
434 } else if (run_setup & RUN_SETUP_GENTLY) {
435 int nongit_ok;
436 prefix = setup_git_directory_gently(&nongit_ok);
437 } else {
438 prefix = NULL;
Jonathan Nieder99caeed2009-11-09 15:05:01[diff] [blame]439 }
Ævar Arnfjörð Bjarmason9725c8d2022-02-16 00:00:34[diff] [blame]440 assert(!prefix || *prefix);
Lessley Denningtone5b17bd2021-12-06 15:55:55[diff] [blame]441 precompose_argv_prefix(argc, argv, NULL);
442 if (use_pager == -1 && run_setup &&
443 !(p->option & DELAY_PAGER_CONFIG))
444 use_pager = check_pager_config(p->cmd);
445 if (use_pager == -1 && p->option & USE_PAGER)
446 use_pager = 1;
447 if (run_setup && startup_info->have_repository)
448 /* get_git_dir() may set up repo, avoid that */
449 trace_repo_setup(prefix);
Jeff King4e107382008-07-03 11:46:57[diff] [blame]450 commit_pager_choice();
451
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]452 if (!help && get_super_prefix()) {
453 if (!(p->option & SUPPORT_SUPER_PREFIX))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]454 die(_("%s doesn't support --super-prefix"), p->cmd);
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]455 }
456
Jonathan Nieder99caeed2009-11-09 15:05:01[diff] [blame]457 if (!help && p->option & NEED_WORK_TREE)
Mike Hommey59f0f2f2007-11-03 11:23:11[diff] [blame]458 setup_work_tree();
459
Christian Couderb319ce42007-12-03 04:51:50[diff] [blame]460 trace_argv_printf(argv, "trace: built-in: git");
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]461 trace2_cmd_name(p->cmd);
462 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 21:06:15[diff] [blame]463 trace2_cmd_list_env_vars();
Linus Torvalds47d0b4f2007-06-24 17:10:40[diff] [blame]464
Nguyễn Thái Ngọc Duyf8adbec2019-01-24 08:29:12[diff] [blame]465 validate_cache_entries(the_repository->index);
Linus Torvalds0f157312007-06-24 17:29:33[diff] [blame]466 status = p->fn(argc, argv, prefix);
Nguyễn Thái Ngọc Duyf8adbec2019-01-24 08:29:12[diff] [blame]467 validate_cache_entries(the_repository->index);
Jameson Miller8616a2d2018-07-02 19:49:39[diff] [blame]468
Linus Torvalds0f157312007-06-24 17:29:33[diff] [blame]469 if (status)
Johannes Sixt47e3de02009-07-05 18:57:46[diff] [blame]470 return status;
Linus Torvalds0f157312007-06-24 17:29:33[diff] [blame]471
472 /* Somebody closed stdout? */
473 if (fstat(fileno(stdout), &st))
474 return 0;
475 /* Ignore write errors for pipes and sockets.. */
476 if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
477 return 0;
478
479 /* Check for ENOSPC and EIO errors.. */
Linus Torvalds0227f982007-06-30 18:44:20[diff] [blame]480 if (fflush(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]481 die_errno(_("write failure on standard output"));
Linus Torvalds0227f982007-06-30 18:44:20[diff] [blame]482 if (ferror(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]483 die(_("unknown write failure on standard output"));
Linus Torvalds0227f982007-06-30 18:44:20[diff] [blame]484 if (fclose(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]485 die_errno(_("close failed on standard output"));
Linus Torvalds0f157312007-06-24 17:29:33[diff] [blame]486 return 0;
Linus Torvalds47d0b4f2007-06-24 17:10:40[diff] [blame]487}
488
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]489static struct cmd_struct commands[] = {
490 { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
Paul Tan783d7e82015-08-04 13:52:06[diff] [blame]491 { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]492 { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]493 { "apply", cmd_apply, RUN_SETUP_GENTLY },
Junio C Hamanoeb0224c2016-11-22 21:37:04[diff] [blame]494 { "archive", cmd_archive, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]495 { "bisect--helper", cmd_bisect__helper, RUN_SETUP },
496 { "blame", cmd_blame, RUN_SETUP },
Martin Ågrend74b5412017-11-19 15:03:49[diff] [blame]497 { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG },
Jeff Kingd7a56492020-08-13 14:59:36[diff] [blame]498 { "bugreport", cmd_bugreport, RUN_SETUP_GENTLY },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]499 { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]500 { "cat-file", cmd_cat_file, RUN_SETUP },
501 { "check-attr", cmd_check_attr, RUN_SETUP },
502 { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE },
503 { "check-mailmap", cmd_check_mailmap, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]504 { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT },
Eric Sunshine0ca560c2015-07-06 17:30:56[diff] [blame]505 { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE },
Matheus Tavarese9e8adf2021-04-19 00:14:54[diff] [blame]506 { "checkout--worker", cmd_checkout__worker,
507 RUN_SETUP | NEED_WORK_TREE | SUPPORT_SUPER_PREFIX },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]508 { "checkout-index", cmd_checkout_index,
509 RUN_SETUP | NEED_WORK_TREE},
510 { "cherry", cmd_cherry, RUN_SETUP },
511 { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
512 { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duy86d26f22015-12-20 07:50:18[diff] [blame]513 { "clone", cmd_clone },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]514 { "column", cmd_column, RUN_SETUP_GENTLY },
515 { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
Derrick Stolee4ce58ee2018-04-02 20:34:18[diff] [blame]516 { "commit-graph", cmd_commit_graph, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]517 { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT },
Martin Ågren32888b82018-02-21 18:51:43[diff] [blame]518 { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]519 { "count-objects", cmd_count_objects, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]520 { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT },
Jeff Kingb5dd96b2020-08-13 14:58:55[diff] [blame]521 { "credential-cache", cmd_credential_cache },
522 { "credential-cache--daemon", cmd_credential_cache_daemon },
523 { "credential-store", cmd_credential_store },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]524 { "describe", cmd_describe, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]525 { "diff", cmd_diff, NO_PARSEOPT },
526 { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
527 { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT },
528 { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT },
Johannes Schindelin20de3162019-03-14 11:25:04[diff] [blame]529 { "difftool", cmd_difftool, RUN_SETUP_GENTLY },
Ævar Arnfjörð Bjarmasonb4f207f2019-06-21 10:18:06[diff] [blame]530 { "env--helper", cmd_env__helper },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]531 { "fast-export", cmd_fast_export, RUN_SETUP },
Jeff Kinga006f872020-08-13 14:59:45[diff] [blame]532 { "fast-import", cmd_fast_import, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]533 { "fetch", cmd_fetch, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]534 { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]535 { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
536 { "for-each-ref", cmd_for_each_ref, RUN_SETUP },
Derrick Stolee4950b2a2020-09-11 17:49:16[diff] [blame]537 { "for-each-repo", cmd_for_each_repo, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]538 { "format-patch", cmd_format_patch, RUN_SETUP },
539 { "fsck", cmd_fsck, RUN_SETUP },
540 { "fsck-objects", cmd_fsck, RUN_SETUP },
Jeff Hostetler53fcfbc2022-05-26 21:47:23[diff] [blame]541 { "fsmonitor--daemon", cmd_fsmonitor__daemon, SUPPORT_SUPER_PREFIX | RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]542 { "gc", cmd_gc, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]543 { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT },
Brandon Williamsf9ee2fc2017-08-02 19:49:23[diff] [blame]544 { "grep", cmd_grep, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]545 { "hash-object", cmd_hash_object },
546 { "help", cmd_help },
Emily Shaffer96e72252021-12-22 03:59:27[diff] [blame]547 { "hook", cmd_hook, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]548 { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT },
Nguyễn Thái Ngọc Duy86d26f22015-12-20 07:50:18[diff] [blame]549 { "init", cmd_init_db },
550 { "init-db", cmd_init_db },
John Keepingcbd9fc22015-09-05 13:39:24[diff] [blame]551 { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]552 { "log", cmd_log, RUN_SETUP },
Brandon Williams188dce12017-06-22 18:43:48[diff] [blame]553 { "ls-files", cmd_ls_files, RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]554 { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
555 { "ls-tree", cmd_ls_tree, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]556 { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT },
557 { "mailsplit", cmd_mailsplit, NO_PARSEOPT },
Rafael Silvae72f7de2020-11-26 20:41:41[diff] [blame]558 { "maintenance", cmd_maintenance, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]559 { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE },
560 { "merge-base", cmd_merge_base, RUN_SETUP },
561 { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]562 { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT },
563 { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT },
564 { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
565 { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
566 { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
567 { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
568 { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT },
569 { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]570 { "mktree", cmd_mktree, RUN_SETUP },
Taylor Blau73ff4ad2021-08-31 20:51:53[diff] [blame]571 { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]572 { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
573 { "name-rev", cmd_name_rev, RUN_SETUP },
574 { "notes", cmd_notes, RUN_SETUP },
575 { "pack-objects", cmd_pack_objects, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]576 { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]577 { "pack-refs", cmd_pack_refs, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]578 { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]579 { "pickaxe", cmd_blame, RUN_SETUP },
580 { "prune", cmd_prune, RUN_SETUP },
581 { "prune-packed", cmd_prune_packed, RUN_SETUP },
Paul Tan1e1ea692015-06-14 08:41:51[diff] [blame]582 { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]583 { "push", cmd_push, RUN_SETUP },
Johannes Schindelin348ae562018-08-13 11:33:02[diff] [blame]584 { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER },
Stefan Beller3d415422017-01-18 01:05:20[diff] [blame]585 { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX},
Johannes Schindelin80dfc922019-07-24 21:15:00[diff] [blame]586 { "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]587 { "receive-pack", cmd_receive_pack },
588 { "reflog", cmd_reflog, RUN_SETUP },
589 { "remote", cmd_remote, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]590 { "remote-ext", cmd_remote_ext, NO_PARSEOPT },
591 { "remote-fd", cmd_remote_fd, NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]592 { "repack", cmd_repack, RUN_SETUP },
593 { "replace", cmd_replace, RUN_SETUP },
594 { "rerere", cmd_rerere, RUN_SETUP },
595 { "reset", cmd_reset, RUN_SETUP },
Nguyễn Thái Ngọc Duy46e91b62019-04-25 09:45:45[diff] [blame]596 { "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]597 { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT },
598 { "rev-parse", cmd_rev_parse, NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]599 { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
600 { "rm", cmd_rm, RUN_SETUP },
601 { "send-pack", cmd_send_pack, RUN_SETUP },
602 { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER },
603 { "show", cmd_show, RUN_SETUP },
604 { "show-branch", cmd_show_branch, RUN_SETUP },
brian m. carlson88a09a52020-05-25 19:59:12[diff] [blame]605 { "show-index", cmd_show_index, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]606 { "show-ref", cmd_show_ref, RUN_SETUP },
Derrick Stolee94c09562019-11-21 22:04:33[diff] [blame]607 { "sparse-checkout", cmd_sparse_checkout, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]608 { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
Thomas Gummerer8a2cd3f2020-03-03 17:46:13[diff] [blame]609 { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]610 { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
611 { "stripspace", cmd_stripspace },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]612 { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT },
Nguyễn Thái Ngọc Duyd787d312019-03-29 10:39:05[diff] [blame]613 { "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]614 { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
Martin Ågrende121ff2017-08-02 19:40:53[diff] [blame]615 { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]616 { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT },
617 { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]618 { "update-index", cmd_update_index, RUN_SETUP },
619 { "update-ref", cmd_update_ref, RUN_SETUP },
620 { "update-server-info", cmd_update_server_info, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]621 { "upload-archive", cmd_upload_archive, NO_PARSEOPT },
622 { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT },
Brandon Williamsa3d6b532018-03-14 18:31:41[diff] [blame]623 { "upload-pack", cmd_upload_pack },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]624 { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT },
Michael J Gruberd07b00b2014-06-23 07:05:49[diff] [blame]625 { "verify-commit", cmd_verify_commit, RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]626 { "verify-pack", cmd_verify_pack },
627 { "verify-tag", cmd_verify_tag, RUN_SETUP },
628 { "version", cmd_version },
629 { "whatchanged", cmd_whatchanged, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]630 { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]631 { "write-tree", cmd_write_tree, RUN_SETUP },
632};
633
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]634static struct cmd_struct *get_builtin(const char *s)
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]635{
636 int i;
637 for (i = 0; i < ARRAY_SIZE(commands); i++) {
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]638 struct cmd_struct *p = commands + i;
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]639 if (!strcmp(s, p->cmd))
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]640 return p;
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]641 }
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]642 return NULL;
643}
644
645int is_builtin(const char *s)
646{
647 return !!get_builtin(s);
Sebastian Schuberthc6127fa2014-01-02 16:17:11[diff] [blame]648}
649
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]650static void list_builtins(struct string_list *out, unsigned int exclude_option)
Jeff King8893fd92017-05-30 05:18:43[diff] [blame]651{
652 int i;
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]653 for (i = 0; i < ARRAY_SIZE(commands); i++) {
654 if (exclude_option &&
655 (commands[i].option & exclude_option))
656 continue;
Nguyễn Thái Ngọc Duye5d7a612018-05-20 18:39:58[diff] [blame]657 string_list_append(out, commands[i].cmd);
Nguyễn Thái Ngọc Duye9547942018-03-24 20:35:19[diff] [blame]658 }
Jeff King8893fd92017-05-30 05:18:43[diff] [blame]659}
660
Johannes Schindelin722fc372020-10-07 21:56:51[diff] [blame]661void load_builtin_commands(const char *prefix, struct cmdnames *cmds)
662{
663 const char *name;
664 int i;
665
666 /*
667 * Callers can ask for a subset of the commands based on a certain
668 * prefix, which is then dropped from the added names. The names in
669 * the `commands[]` array do not have the `git-` prefix, though,
670 * therefore we must expect the `prefix` to at least start with `git-`.
671 */
672 if (!skip_prefix(prefix, "git-", &prefix))
673 BUG("prefix '%s' must start with 'git-'", prefix);
674
675 for (i = 0; i < ARRAY_SIZE(commands); i++)
676 if (skip_prefix(commands[i].cmd, prefix, &name))
677 add_cmdname(cmds, name, strlen(name));
678}
679
Alexander Kuleshov63ca1c02016-02-22 07:18:29[diff] [blame]680#ifdef STRIP_EXTENSION
681static void strip_extension(const char **argv)
682{
683 size_t len;
684
685 if (strip_suffix(argv[0], STRIP_EXTENSION, &len))
686 argv[0] = xmemdupz(argv[0], len);
687}
688#else
689#define strip_extension(cmd)
690#endif
691
Sebastian Schuberth3f784a42014-01-02 16:15:44[diff] [blame]692static void handle_builtin(int argc, const char **argv)
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]693{
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]694 struct strvec args = STRVEC_INIT;
Alexander Kuleshov63ca1c02016-02-22 07:18:29[diff] [blame]695 const char *cmd;
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]696 struct cmd_struct *builtin;
Johannes Sixt23326d12007-12-08 19:57:25[diff] [blame]697
Alexander Kuleshov63ca1c02016-02-22 07:18:29[diff] [blame]698 strip_extension(argv);
699 cmd = argv[0];
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]700
Ralf Thielow2c6b6d92016-08-26 17:58:36[diff] [blame]701 /* Turn "git cmd --help" into "git help --exclude-guides cmd" */
Linus Torvalds1cd95082006-04-15 18:13:49[diff] [blame]702 if (argc > 1 && !strcmp(argv[1], "--help")) {
Ralf Thielow2c6b6d92016-08-26 17:58:36[diff] [blame]703 int i;
704
Linus Torvalds1cd95082006-04-15 18:13:49[diff] [blame]705 argv[1] = argv[0];
706 argv[0] = cmd = "help";
Ralf Thielow2c6b6d92016-08-26 17:58:36[diff] [blame]707
708 for (i = 0; i < argc; i++) {
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]709 strvec_push(&args, argv[i]);
Ralf Thielow2c6b6d92016-08-26 17:58:36[diff] [blame]710 if (!i)
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]711 strvec_push(&args, "--exclude-guides");
Ralf Thielow2c6b6d92016-08-26 17:58:36[diff] [blame]712 }
713
714 argc++;
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]715 argv = args.v;
Linus Torvalds1cd95082006-04-15 18:13:49[diff] [blame]716 }
717
Slavomir Vlcekc4f901d2014-11-12 13:10:22[diff] [blame]718 builtin = get_builtin(cmd);
Junio C Hamano441981b2016-01-27 06:52:02[diff] [blame]719 if (builtin)
720 exit(run_builtin(builtin, argc, argv));
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]721 strvec_clear(&args);
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]722}
723
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]724static void execv_dashed_external(const char **argv)
725{
Jeff King2b296c92017-01-07 01:16:24[diff] [blame]726 struct child_process cmd = CHILD_PROCESS_INIT;
Jeff Kingd8e96fd2009-01-28 07:38:14[diff] [blame]727 int status;
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]728
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]729 if (get_super_prefix())
Nguyễn Th��i Ng���c Duy8aa8c142018-11-10 05:16:00[diff] [blame]730 die(_("%s doesn't support --super-prefix"), argv[0]);
Brandon Williams74866d72016-10-07 18:18:48[diff] [blame]731
Martin Ågren595d59e2017-08-02 19:40:55[diff] [blame]732 if (use_pager == -1 && !is_builtin(argv[0]))
Jeff King92058e42011-08-18 22:01:32[diff] [blame]733 use_pager = check_pager_config(argv[0]);
Jonathan Nieder030149a2010-07-14 22:55:12[diff] [blame]734 commit_pager_choice();
735
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]736 strvec_pushf(&cmd.args, "git-%s", argv[0]);
737 strvec_pushv(&cmd.args, argv + 1);
Jeff King2b296c92017-01-07 01:16:24[diff] [blame]738 cmd.clean_on_exit = 1;
Jeff King46df6902017-01-07 01:22:23[diff] [blame]739 cmd.wait_after_clean = 1;
Jeff King2b296c92017-01-07 01:16:24[diff] [blame]740 cmd.silent_exec_failure = 1;
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]741 cmd.trace2_child_class = "dashed";
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]742
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]743 trace2_cmd_name("_run_dashed_");
744
745 /*
746 * The code in run_command() logs trace2 child_start/child_exit
747 * events, so we do not need to report exec/exec_result events here.
748 */
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]749 trace_argv_printf(cmd.args.v, "trace: exec:");
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]750
751 /*
Jeff King246f0ed2017-01-07 01:17:48[diff] [blame]752 * If we fail because the command is not found, it is
753 * OK to return. Otherwise, we just pass along the status code,
754 * or our usual generic code if we were not even able to exec
755 * the program.
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]756 */
Jeff King2b296c92017-01-07 01:16:24[diff] [blame]757 status = run_command(&cmd);
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]758
759 /*
760 * If the child process ran and we are now going to exit, emit a
761 * generic string as our trace2 command verb to indicate that we
762 * launched a dashed command.
763 */
Jeff King246f0ed2017-01-07 01:17:48[diff] [blame]764 if (status >= 0)
Johannes Sixt5709e032009-07-04 19:26:39[diff] [blame]765 exit(status);
Jeff King246f0ed2017-01-07 01:17:48[diff] [blame]766 else if (errno != ENOENT)
767 exit(128);
Junio C Hamano7550be02007-12-02 06:09:22[diff] [blame]768}
769
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]770static int run_argv(int *argcp, const char ***argv)
771{
772 int done_alias = 0;
Tim Schumacherc6d75bc2018-09-16 07:50:00[diff] [blame]773 struct string_list cmd_list = STRING_LIST_INIT_NODUP;
Tim Schumacher82f71d92018-09-16 07:50:01[diff] [blame]774 struct string_list_item *seen;
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]775
776 while (1) {
Junio C Hamano441981b2016-01-27 06:52:02[diff] [blame]777 /*
778 * If we tried alias and futzed with our environment,
779 * it no longer is safe to invoke builtins directly in
780 * general. We have to spawn them as dashed externals.
781 *
782 * NEEDSWORK: if we can figure out cases
783 * where it is safe to do, we can avoid spawning a new
784 * process.
785 */
786 if (!done_alias)
787 handle_builtin(*argcp, *argv);
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]788 else if (get_builtin(**argv)) {
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]789 struct strvec args = STRVEC_INIT;
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]790 int i;
791
792 /*
793 * The current process is committed to launching a
794 * child process to run the command named in (**argv)
795 * and exiting. Log a generic string as the trace2
796 * command verb to indicate this. Note that the child
797 * process will log the actual verb when it runs.
798 */
799 trace2_cmd_name("_run_git_alias_");
800
801 if (get_super_prefix())
802 die("%s doesn't support --super-prefix", **argv);
803
804 commit_pager_choice();
805
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]806 strvec_push(&args, "git");
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]807 for (i = 0; i < *argcp; i++)
Jeff Kingef8d7ac2020-07-28 20:24:53[diff] [blame]808 strvec_push(&args, (*argv)[i]);
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]809
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]810 trace_argv_printf(args.v, "trace: exec:");
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]811
812 /*
813 * if we fail because the command is not found, it is
814 * OK to return. Otherwise, we just pass along the status code.
815 */
Jeff Kingd70a9eb2020-07-29 00:37:20[diff] [blame]816 i = run_command_v_opt_tr2(args.v, RUN_SILENT_EXEC_FAILURE |
Trygve Aabergee662df72020-07-07 12:17:14[diff] [blame]817 RUN_CLEAN_ON_EXIT | RUN_WAIT_AFTER_CLEAN, "git_alias");
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]818 if (i >= 0 || errno != ENOENT)
819 exit(i);
820 die("could not execute builtin %s", **argv);
821 }
Jeff Hostetleree4512e2019-02-22 22:25:01[diff] [blame]822
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]823 /* .. then try the external ones */
824 execv_dashed_external(*argv);
825
Tim Schumacher82f71d92018-09-16 07:50:01[diff] [blame]826 seen = unsorted_string_list_lookup(&cmd_list, *argv[0]);
827 if (seen) {
828 int i;
829 struct strbuf sb = STRBUF_INIT;
830 for (i = 0; i < cmd_list.nr; i++) {
831 struct string_list_item *item = &cmd_list.items[i];
832
833 strbuf_addf(&sb, "\n %s", item->string);
834 if (item == seen)
835 strbuf_addstr(&sb, " <==");
836 else if (i == cmd_list.nr - 1)
837 strbuf_addstr(&sb, " ==>");
838 }
Tim Schumacherc6d75bc2018-09-16 07:50:00[diff] [blame]839 die(_("alias loop detected: expansion of '%s' does"
Tim Schumacher82f71d92018-09-16 07:50:01[diff] [blame]840 " not terminate:%s"), cmd_list.items[0].string, sb.buf);
Tim Schumacherc6d75bc2018-09-16 07:50:00[diff] [blame]841 }
842
843 string_list_append(&cmd_list, *argv[0]);
844
845 /*
846 * It could be an alias -- this works around the insanity
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]847 * of overriding "git log" with "git show" by having
848 * alias.log = show
849 */
Nguyễn Thái Ngọc Duyc0562612014-06-08 09:37:10[diff] [blame]850 if (!handle_alias(argcp, argv))
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]851 break;
852 done_alias = 1;
853 }
854
Tim Schumacherc6d75bc2018-09-16 07:50:00[diff] [blame]855 string_list_clear(&cmd_list, 0);
856
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]857 return done_alias;
858}
859
Jeff King3f2e2292016-07-01 05:58:58[diff] [blame]860int cmd_main(int argc, const char **argv)
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]861{
Steve Haslam4dd47c32009-01-18 12:00:10[diff] [blame]862 const char *cmd;
Alexander Kuleshov8fa79752015-03-02 12:02:37[diff] [blame]863 int done_help = 0;
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]864
Jeff King650c4492016-07-01 06:04:04[diff] [blame]865 cmd = argv[0];
Steffen Prohaska2cd72b02009-01-18 12:00:11[diff] [blame]866 if (!cmd)
Steve Haslam4dd47c32009-01-18 12:00:10[diff] [blame]867 cmd = "git-help";
Jeff King6854a8f2016-11-27 04:31:13[diff] [blame]868 else {
869 const char *slash = find_last_dir_sep(cmd);
870 if (slash)
871 cmd = slash + 1;
872 }
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]873
Karsten Blees578da032014-07-12 00:07:01[diff] [blame]874 trace_command_performance(argv);
875
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]876 /*
877 * "git-xxxx" is the same as "git xxxx", but we obviously:
878 *
879 * - cannot take flags in between the "git" and the "xxxx".
880 * - cannot execute it externally (since it would just do
881 * the same thing over again)
882 *
Sebastian Schuberth3f784a42014-01-02 16:15:44[diff] [blame]883 * So we just directly call the builtin handler, and die if
884 * that one cannot handle it.
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]885 */
Jeff Kingae021d82014-06-18 19:47:50[diff] [blame]886 if (skip_prefix(cmd, "git-", &cmd)) {
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]887 argv[0] = cmd;
Sebastian Schuberth3f784a42014-01-02 16:15:44[diff] [blame]888 handle_builtin(argc, argv);
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]889 die(_("cannot handle %s as a builtin"), cmd);
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]890 }
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]891
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]892 /* Look for flags.. */
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]893 argv++;
894 argc--;
Matthias Lederhofer4394efe2007-06-08 20:57:55[diff] [blame]895 handle_options(&argv, &argc, NULL);
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]896 if (argc > 0) {
Garrit Franke6b52f482022-03-31 21:27:09[diff] [blame]897 if (!strcmp("--version", argv[0]) || !strcmp("-v", argv[0]))
898 argv[0] = "version";
899 else if (!strcmp("--help", argv[0]) || !strcmp("-h", argv[0]))
900 argv[0] = "help";
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]901 } else {
Scott R Parish3d7e2d82007-10-27 08:36:49[diff] [blame]902 /* The user didn't specify a command; give them help */
Nguyễn Thái Ngọc Duy73e25e72010-06-26 19:26:37[diff] [blame]903 commit_pager_choice();
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 05:16:00[diff] [blame]904 printf(_("usage: %s\n\n"), git_usage_string);
Scott R Parish3d7e2d82007-10-27 08:36:49[diff] [blame]905 list_common_cmds_help();
Kevin Bracey421a9762013-03-10 15:10:20[diff] [blame]906 printf("\n%s\n", _(git_more_info_string));
Scott R Parish3d7e2d82007-10-27 08:36:49[diff] [blame]907 exit(1);
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]908 }
Johannes Schindelin6acbcb92006-07-25 18:24:22[diff] [blame]909 cmd = argv[0];
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]910
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]911 /*
Scott R Parish511707d2007-10-28 11:17:20[diff] [blame]912 * We use PATH to find git commands, but we prepend some higher
Mike Ralphson3ea3c212009-04-17 18:13:30[diff] [blame]913 * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH
Scott R Parish511707d2007-10-28 11:17:20[diff] [blame]914 * environment, and the $(gitexecdir) from the Makefile at build
915 * time.
Linus Torvalds231af832006-02-26 20:34:51[diff] [blame]916 */
Johannes Sixte1464ca2008-07-21 19:19:52[diff] [blame]917 setup_path();
Junio C Hamano7dbc2c02005-11-16 07:13:30[diff] [blame]918
Junio C Hamanoa0254632006-06-06 01:09:40[diff] [blame]919 while (1) {
Alexander Kuleshov8fa79752015-03-02 12:02:37[diff] [blame]920 int was_alias = run_argv(&argc, &argv);
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]921 if (errno != ENOENT)
Junio C Hamanoa0254632006-06-06 01:09:40[diff] [blame]922 break;
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]923 if (was_alias) {
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]924 fprintf(stderr, _("expansion of alias '%s' failed; "
925 "'%s' is not a git command\n"),
Theodore Ts'of3dd0152007-02-11 00:33:57[diff] [blame]926 cmd, argv[0]);
927 exit(1);
928 }
Adeodato Simóa907e1b2009-01-04 17:16:01[diff] [blame]929 if (!done_help) {
930 cmd = argv[0] = help_unknown_cmd(cmd);
931 done_help = 1;
932 } else
933 break;
Theodore Ts'of3dd0152007-02-11 00:33:57[diff] [blame]934 }
Alex Riesen10b15b82005-12-01 12:48:35[diff] [blame]935
Alexander Shopovfc045fe2018-02-13 13:19:15[diff] [blame]936 fprintf(stderr, _("failed to run command '%s': %s\n"),
Andreas Ericsson33ebb872006-06-28 09:17:21[diff] [blame]937 cmd, strerror(errno));
Andreas Ericsson8e49d502005-11-15 23:31:25[diff] [blame]938
939 return 1;
940}