blob: 1cab64b5d1c1bb5d64e2b693b0da09c276a170b8 [file] [log] [blame]
Junio C Hamano85023572006-12-19 14:34:12 -08001#include "builtin.h"
Brandon Williamsb2141fc2017-06-14 11:07:36 -07002#include "config.h"
Stefan Bellerd807c4a2018-04-10 14:26:18 -07003#include "exec-cmd.h"
Thiago Farinafd5c3632010-08-31 23:29:08 -03004#include "help.h"
Jeff Kingd8e96fd2009-01-28 02:38:14 -05005#include "run-command.h"
Nguyễn Thái Ngọc Duy65b5f942018-05-20 20:40:06 +02006#include "alias.h"
Taylor Blau120ad2b2020-04-30 13:48:50 -06007#include "shallow.h"
Andreas Ericsson8e49d502005-11-16 00:31:25 +01008
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 21:35:18 +01009#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 21:35:19 +010019#define NO_PARSEOPT (1<<6) /* parse-options is not used */
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 21:35:18 +010020
21struct cmd_struct {
22 const char *cmd;
23 int (*fn)(int, const char **, const char *);
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +010024 unsigned int option;
Nguyễn Thái Ngọc Duy007aa8d2018-03-24 21:35:18 +010025};
26
Ramsay Allan Jones822a7d52006-07-30 22:42:25 +010027const char git_usage_string[] =
Alexander Shopovfc045fe2018-02-13 14:19:15 +010028 N_("git [--version] [--help] [-C <path>] [-c <name>=<value>]\n"
29 " [--exec-path[=<path>]] [--html-path] [--man-path] [--info-path]\n"
Johannes Sixt7213c282018-05-03 19:15:08 +020030 " [-p | --paginate | -P | --no-pager] [--no-replace-objects] [--bare]\n"
Alexander Shopovfc045fe2018-02-13 14:19:15 +010031 " [--git-dir=<path>] [--work-tree=<path>] [--namespace=<name>]\n"
32 " <command> [<args>]");
Ramsay Allan Jones822a7d52006-07-30 22:42:25 +010033
Teemu Likonenb7d96812008-06-06 00:15:36 +030034const char git_more_info_string[] =
Alex Henriead5fe372014-08-30 13:56:01 -060035 N_("'git help -a' and 'git help -g' list available subcommands and some\n"
Philip Oakley73903d02013-04-02 23:39:48 +010036 "concept guides. See 'git help <command>' or 'git help <concept>'\n"
Philip Oakleye55f36b2019-05-15 23:47:08 +010037 "to read about a specific subcommand or concept.\n"
38 "See 'git help git' for an overview of the system.");
Teemu Likonenb7d96812008-06-06 00:15:36 +030039
Jeff King4e107382008-07-03 07:46:57 -040040static int use_pager = -1;
Nguyễn Thái Ngọc Duyc0562612014-06-08 16:37:10 +070041
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +020042static void list_builtins(struct string_list *list, unsigned int exclude_option);
Jeff King8893fd92017-05-30 01:18:43 -040043
Nguyễn Thái Ngọc Duye11dca12018-05-20 20:40:07 +020044static void exclude_helpers_from_list(struct string_list *list)
45{
46 int i = 0;
47
48 while (i < list->nr) {
49 if (strstr(list->items[i].string, "--"))
50 unsorted_string_list_delete_item(list, i, 0);
51 else
52 i++;
53 }
54}
55
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +020056static int match_token(const char *spec, int len, const char *token)
57{
58 int token_len = strlen(token);
59
60 return len == token_len && !strncmp(spec, token, token_len);
61}
62
63static int list_cmds(const char *spec)
64{
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +020065 struct string_list list = STRING_LIST_INIT_DUP;
66 int i;
Jeff King83b0ecf2019-03-20 14:03:26 -040067 int nongit;
68
69 /*
70 * Set up the repository so we can pick up any repo-level config (like
71 * completion.commands).
72 */
73 setup_git_directory_gently(&nongit);
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +020074
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +020075 while (*spec) {
76 const char *sep = strchrnul(spec, ',');
77 int len = sep - spec;
78
79 if (match_token(spec, len, "builtins"))
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +020080 list_builtins(&list, 0);
Nguyễn Thái Ngọc Duy6bb2dc02018-05-20 20:39:59 +020081 else if (match_token(spec, len, "main"))
82 list_all_main_cmds(&list);
83 else if (match_token(spec, len, "others"))
84 list_all_other_cmds(&list);
Nguyễn Thái Ngọc Duye11dca12018-05-20 20:40:07 +020085 else if (match_token(spec, len, "nohelpers"))
86 exclude_helpers_from_list(&list);
Nguyễn Thái Ngọc Duy3301d362018-05-20 20:40:08 +020087 else if (match_token(spec, len, "alias"))
88 list_aliases(&list);
Nguyễn Thái Ngọc Duy6532f372018-05-20 20:40:09 +020089 else if (match_token(spec, len, "config"))
90 list_cmds_by_config(&list);
Nguyễn Thái Ngọc Duy3c777762018-05-20 20:40:00 +020091 else if (len > 5 && !strncmp(spec, "list-", 5)) {
92 struct strbuf sb = STRBUF_INIT;
93
94 strbuf_add(&sb, spec + 5, len - 5);
95 list_cmds_by_category(&list, sb.buf);
96 strbuf_release(&sb);
97 }
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +020098 else
99 die(_("unsupported command listing type '%s'"), spec);
100 spec += len;
101 if (*spec == ',')
102 spec++;
103 }
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +0200104 for (i = 0; i < list.nr; i++)
105 puts(list.items[i].string);
106 string_list_clear(&list, 0);
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +0200107 return 0;
108}
Nguyễn Thái Ngọc Duyc0562612014-06-08 16:37:10 +0700109
Nguyễn Thái Ngọc Duy3b335762018-12-09 11:25:21 +0100110static void commit_pager_choice(void)
111{
Jeff King4e107382008-07-03 07:46:57 -0400112 switch (use_pager) {
113 case 0:
114 setenv("GIT_PAGER", "cat", 1);
115 break;
116 case 1:
117 setup_pager();
118 break;
119 default:
120 break;
121 }
122}
123
Martin Ågren033fe3d2017-08-02 21:40:51 +0200124void setup_auto_pager(const char *cmd, int def)
125{
126 if (use_pager != -1 || pager_in_use())
127 return;
128 use_pager = check_pager_config(cmd);
129 if (use_pager == -1)
130 use_pager = def;
131 commit_pager_choice();
132}
133
Felipe Contreras4b25d092009-05-01 12:06:36 +0300134static int handle_options(const char ***argv, int *argc, int *envchanged)
Johannes Schindelin4ab243a2006-07-24 14:10:45 +0200135{
Junio C Hamano73546c02011-05-24 18:50:35 -0400136 const char **orig_argv = *argv;
Johannes Schindelin4ab243a2006-07-24 14:10:45 +0200137
138 while (*argc > 0) {
139 const char *cmd = (*argv)[0];
140 if (cmd[0] != '-')
141 break;
142
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200143 /*
144 * For legacy reasons, the "version" and "help"
145 * commands can be written with "--" prepended
146 * to make them look like flags.
147 */
148 if (!strcmp(cmd, "--help") || !strcmp(cmd, "--version"))
149 break;
150
151 /*
152 * Check remaining flags.
153 */
Jeff Kingae021d82014-06-18 15:47:50 -0400154 if (skip_prefix(cmd, "--exec-path", &cmd)) {
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200155 if (*cmd == '=')
Dan Jacques226c0dd2018-04-10 11:05:44 -0400156 git_set_exec_path(cmd + 1);
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200157 else {
158 puts(git_exec_path());
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800159 trace2_cmd_name("_query_");
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200160 exit(0);
161 }
Markus Heidelberg89a56bf2009-04-05 04:15:16 +0200162 } else if (!strcmp(cmd, "--html-path")) {
163 puts(system_path(GIT_HTML_PATH));
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800164 trace2_cmd_name("_query_");
Markus Heidelberg89a56bf2009-04-05 04:15:16 +0200165 exit(0);
Jon Seymourf2dd8c32011-05-01 18:16:25 +1000166 } else if (!strcmp(cmd, "--man-path")) {
167 puts(system_path(GIT_MAN_PATH));
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800168 trace2_cmd_name("_query_");
Jon Seymourf2dd8c32011-05-01 18:16:25 +1000169 exit(0);
170 } else if (!strcmp(cmd, "--info-path")) {
171 puts(system_path(GIT_INFO_PATH));
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800172 trace2_cmd_name("_query_");
Jon Seymourf2dd8c32011-05-01 18:16:25 +1000173 exit(0);
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200174 } else if (!strcmp(cmd, "-p") || !strcmp(cmd, "--paginate")) {
Jeff King4e107382008-07-03 07:46:57 -0400175 use_pager = 1;
Johannes Sixt7213c282018-05-03 19:15:08 +0200176 } else if (!strcmp(cmd, "-P") || !strcmp(cmd, "--no-pager")) {
Jeff King4e107382008-07-03 07:46:57 -0400177 use_pager = 0;
Matthieu Moy463a8492007-08-19 19:24:36 +0200178 if (envchanged)
179 *envchanged = 1;
Christian Couderb0fa7ab2009-10-12 22:30:32 +0200180 } else if (!strcmp(cmd, "--no-replace-objects")) {
Jeff King6ebd1ca2018-07-18 16:45:20 -0400181 read_replace_refs = 0;
Christian Couder6476b382009-11-18 07:50:58 +0100182 setenv(NO_REPLACE_OBJECTS_ENVIRONMENT, "1", 1);
183 if (envchanged)
184 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200185 } else if (!strcmp(cmd, "--git-dir")) {
Brian Gernhardtc321f002006-12-22 08:56:25 -0500186 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100187 fprintf(stderr, _("no directory given for --git-dir\n" ));
Brian Gernhardtc321f002006-12-22 08:56:25 -0500188 usage(git_usage_string);
189 }
Shawn O. Pearce45b09792006-12-30 23:29:11 -0500190 setenv(GIT_DIR_ENVIRONMENT, (*argv)[1], 1);
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200191 if (envchanged)
192 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200193 (*argv)++;
194 (*argc)--;
Jeff Kingae021d82014-06-18 15:47:50 -0400195 } else if (skip_prefix(cmd, "--git-dir=", &cmd)) {
196 setenv(GIT_DIR_ENVIRONMENT, cmd, 1);
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200197 if (envchanged)
198 *envchanged = 1;
Josh Tripletta1bea2c2011-07-05 10:54:44 -0700199 } else if (!strcmp(cmd, "--namespace")) {
200 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100201 fprintf(stderr, _("no namespace given for --namespace\n" ));
Josh Tripletta1bea2c2011-07-05 10:54:44 -0700202 usage(git_usage_string);
203 }
204 setenv(GIT_NAMESPACE_ENVIRONMENT, (*argv)[1], 1);
205 if (envchanged)
206 *envchanged = 1;
207 (*argv)++;
208 (*argc)--;
Jeff Kingae021d82014-06-18 15:47:50 -0400209 } else if (skip_prefix(cmd, "--namespace=", &cmd)) {
210 setenv(GIT_NAMESPACE_ENVIRONMENT, cmd, 1);
Josh Tripletta1bea2c2011-07-05 10:54:44 -0700211 if (envchanged)
212 *envchanged = 1;
Matthias Lederhofer892c41b2007-06-06 09:10:42 +0200213 } else if (!strcmp(cmd, "--work-tree")) {
214 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100215 fprintf(stderr, _("no directory given for --work-tree\n" ));
Matthias Lederhofer892c41b2007-06-06 09:10:42 +0200216 usage(git_usage_string);
217 }
218 setenv(GIT_WORK_TREE_ENVIRONMENT, (*argv)[1], 1);
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200219 if (envchanged)
220 *envchanged = 1;
Matthias Lederhofer892c41b2007-06-06 09:10:42 +0200221 (*argv)++;
222 (*argc)--;
Jeff Kingae021d82014-06-18 15:47:50 -0400223 } else if (skip_prefix(cmd, "--work-tree=", &cmd)) {
224 setenv(GIT_WORK_TREE_ENVIRONMENT, cmd, 1);
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200225 if (envchanged)
226 *envchanged = 1;
Brandon Williams74866d72016-10-07 11:18:48 -0700227 } else if (!strcmp(cmd, "--super-prefix")) {
228 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100229 fprintf(stderr, _("no prefix given for --super-prefix\n" ));
Brandon Williams74866d72016-10-07 11:18:48 -0700230 usage(git_usage_string);
231 }
232 setenv(GIT_SUPER_PREFIX_ENVIRONMENT, (*argv)[1], 1);
233 if (envchanged)
234 *envchanged = 1;
235 (*argv)++;
236 (*argc)--;
237 } else if (skip_prefix(cmd, "--super-prefix=", &cmd)) {
238 setenv(GIT_SUPER_PREFIX_ENVIRONMENT, cmd, 1);
239 if (envchanged)
240 *envchanged = 1;
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200241 } else if (!strcmp(cmd, "--bare")) {
René Scharfe4d3ab442014-07-28 20:31:57 +0200242 char *cwd = xgetcwd();
Junio C Hamano6adcca32007-08-27 00:58:06 -0700243 is_bare_repository_cfg = 1;
René Scharfe4d3ab442014-07-28 20:31:57 +0200244 setenv(GIT_DIR_ENVIRONMENT, cwd, 0);
245 free(cwd);
Jeff King2cd83d12013-03-08 04:32:22 -0500246 setenv(GIT_IMPLICIT_WORK_TREE_ENVIRONMENT, "0", 1);
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200247 if (envchanged)
248 *envchanged = 1;
Alex Riesen8b1fa772010-03-26 23:53:57 +0100249 } else if (!strcmp(cmd, "-c")) {
250 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100251 fprintf(stderr, _("-c expects a configuration string\n" ));
Alex Riesen8b1fa772010-03-26 23:53:57 +0100252 usage(git_usage_string);
253 }
Jeff King2b64fc82010-08-23 15:16:00 -0400254 git_config_push_parameter((*argv)[1]);
Alex Riesen8b1fa772010-03-26 23:53:57 +0100255 (*argv)++;
256 (*argc)--;
Jeff King823ab402012-12-19 17:37:30 -0500257 } else if (!strcmp(cmd, "--literal-pathspecs")) {
258 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "1", 1);
259 if (envchanged)
260 *envchanged = 1;
261 } else if (!strcmp(cmd, "--no-literal-pathspecs")) {
262 setenv(GIT_LITERAL_PATHSPECS_ENVIRONMENT, "0", 1);
263 if (envchanged)
264 *envchanged = 1;
Nguyễn Thái Ngọc Duybd30c2e2013-07-14 15:36:08 +0700265 } else if (!strcmp(cmd, "--glob-pathspecs")) {
266 setenv(GIT_GLOB_PATHSPECS_ENVIRONMENT, "1", 1);
267 if (envchanged)
268 *envchanged = 1;
269 } else if (!strcmp(cmd, "--noglob-pathspecs")) {
270 setenv(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, "1", 1);
271 if (envchanged)
272 *envchanged = 1;
Nguyễn Thái Ngọc Duy93d93532013-07-14 15:36:09 +0700273 } else if (!strcmp(cmd, "--icase-pathspecs")) {
274 setenv(GIT_ICASE_PATHSPECS_ENVIRONMENT, "1", 1);
275 if (envchanged)
276 *envchanged = 1;
Jeff King27344d62017-09-27 02:54:30 -0400277 } else if (!strcmp(cmd, "--no-optional-locks")) {
278 setenv(GIT_OPTIONAL_LOCKS_ENVIRONMENT, "0", 1);
279 if (envchanged)
280 *envchanged = 1;
Nguyễn Thái Ngọc Duy6035d6a2013-05-26 08:16:15 +0700281 } else if (!strcmp(cmd, "--shallow-file")) {
282 (*argv)++;
283 (*argc)--;
Stefan Beller6a2df512018-05-17 15:51:43 -0700284 set_alternate_shallow_file(the_repository, (*argv)[0], 1);
Nguyễn Thái Ngọc Duy6035d6a2013-05-26 08:16:15 +0700285 if (envchanged)
286 *envchanged = 1;
Nazri Ramliy44e1e4d2013-09-09 21:47:43 +0800287 } else if (!strcmp(cmd, "-C")) {
288 if (*argc < 2) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100289 fprintf(stderr, _("no directory given for -C\n" ));
Nazri Ramliy44e1e4d2013-09-09 21:47:43 +0800290 usage(git_usage_string);
291 }
Karthik Nayak6a536e22015-03-06 16:48:08 +0530292 if ((*argv)[1][0]) {
293 if (chdir((*argv)[1]))
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100294 die_errno("cannot change to '%s'", (*argv)[1]);
Karthik Nayak6a536e22015-03-06 16:48:08 +0530295 if (envchanged)
296 *envchanged = 1;
297 }
Nazri Ramliy44e1e4d2013-09-09 21:47:43 +0800298 (*argv)++;
299 (*argc)--;
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +0200300 } else if (skip_prefix(cmd, "--list-cmds=", &cmd)) {
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800301 trace2_cmd_name("_query_");
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +0200302 if (!strcmp(cmd, "parseopt")) {
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +0200303 struct string_list list = STRING_LIST_INIT_DUP;
304 int i;
305
306 list_builtins(&list, NO_PARSEOPT);
307 for (i = 0; i < list.nr; i++)
308 printf("%s ", list.items[i].string);
309 string_list_clear(&list, 0);
Nguyễn Thái Ngọc Duy00895212018-05-20 20:39:57 +0200310 exit(0);
311 } else {
312 exit(list_cmds(cmd));
313 }
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200314 } else {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100315 fprintf(stderr, _("unknown option: %s\n"), cmd);
Ramsay Allan Jones822a7d52006-07-30 22:42:25 +0100316 usage(git_usage_string);
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200317 }
Johannes Schindelin4ab243a2006-07-24 14:10:45 +0200318
319 (*argv)++;
320 (*argc)--;
Johannes Schindelin4ab243a2006-07-24 14:10:45 +0200321 }
Junio C Hamano73546c02011-05-24 18:50:35 -0400322 return (*argv) - orig_argv;
Johannes Schindelin4ab243a2006-07-24 14:10:45 +0200323}
324
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200325static int handle_alias(int *argcp, const char ***argv)
326{
SZEDER Gáboraf05d672008-03-25 22:06:26 +0100327 int envchanged = 0, ret = 0, saved_errno = errno;
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200328 int count, option_count;
Felipe Contreras4b25d092009-05-01 12:06:36 +0300329 const char **new_argv;
Jeff King94351112008-02-24 17:17:14 -0500330 const char *alias_command;
331 char *alias_string;
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200332
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200333 alias_command = (*argv)[0];
Jeff King94351112008-02-24 17:17:14 -0500334 alias_string = alias_lookup(alias_command);
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200335 if (alias_string) {
Rasmus Villemoesa9a60b92018-10-09 13:59:08 +0200336 if (*argcp > 1 && !strcmp((*argv)[1], "-h"))
337 fprintf_ln(stderr, _("'%s' is aliased to '%s'"),
338 alias_command, alias_string);
Theodore Ts'odfd42a32007-02-10 19:33:58 -0500339 if (alias_string[0] == '!') {
Jeff King850d2fe2016-02-22 17:44:21 -0500340 struct child_process child = CHILD_PROCESS_INIT;
Johannes Schindelina9bcf652017-06-14 13:36:00 +0200341 int nongit_ok;
342
343 /* Aliases expect GIT_PREFIX, GIT_DIR etc to be set */
344 setup_git_directory_gently(&nongit_ok);
Johannes Schindelina2f80282007-07-01 22:51:58 +0100345
Erik Faye-Lund7f51f8b2011-01-07 00:00:38 +0100346 commit_pager_choice();
347
Jeff King850d2fe2016-02-22 17:44:21 -0500348 child.use_shell = 1;
Trygve Aabergec0d73a52020-07-07 14:17:15 +0200349 child.clean_on_exit = 1;
350 child.wait_after_clean = 1;
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800351 child.trace2_child_class = "shell_alias";
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400352 strvec_push(&child.args, alias_string + 1);
353 strvec_pushv(&child.args, (*argv) + 1);
Erik Faye-Lund7f51f8b2011-01-07 00:00:38 +0100354
Jeff Kingd70a9eb2020-07-28 20:37:20 -0400355 trace2_cmd_alias(alias_command, child.args.v);
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800356 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 14:06:15 -0700357 trace2_cmd_list_env_vars();
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800358 trace2_cmd_name("_run_shell_alias_");
359
Jeff King850d2fe2016-02-22 17:44:21 -0500360 ret = run_command(&child);
Erik Faye-Lund7f51f8b2011-01-07 00:00:38 +0100361 if (ret >= 0) /* normal exit */
362 exit(ret);
363
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100364 die_errno(_("while expanding alias '%s': '%s'"),
365 alias_command, alias_string + 1);
Theodore Ts'odfd42a32007-02-10 19:33:58 -0500366 }
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200367 count = split_cmdline(alias_string, &new_argv);
Deskin Millerdc4179f2008-09-22 11:06:41 -0400368 if (count < 0)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100369 die(_("bad alias.%s string: %s"), alias_command,
Nguyễn Thái Ngọc Duya7412ae2018-11-10 06:16:01 +0100370 _(split_cmdline_strerror(count)));
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200371 option_count = handle_options(&new_argv, &count, &envchanged);
372 if (envchanged)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100373 die(_("alias '%s' changes environment variables.\n"
374 "You can use '!git' in the alias to do this"),
375 alias_command);
René Scharfe7bd97d62019-09-19 22:48:30 +0200376 MOVE_ARRAY(new_argv - option_count, new_argv, count);
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200377 new_argv -= option_count;
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200378
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200379 if (count < 1)
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100380 die(_("empty alias for %s"), alias_command);
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200381
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200382 if (!strcmp(alias_command, new_argv[0]))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100383 die(_("recursive alias: %s"), alias_command);
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200384
Christian Couderb319ce42007-12-03 05:51:50 +0100385 trace_argv_printf(new_argv,
Christian Couder6ce4e612006-09-02 18:23:48 +0200386 "trace: alias expansion: %s =>",
387 alias_command);
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200388
René Scharfe2756ca42014-09-16 20:56:57 +0200389 REALLOC_ARRAY(new_argv, count + *argcp);
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200390 /* insert after command name */
René Scharfe7bd97d62019-09-19 22:48:30 +0200391 COPY_ARRAY(new_argv + count, *argv + 1, *argcp);
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200392
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800393 trace2_cmd_alias(alias_command, new_argv);
394 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 14:06:15 -0700395 trace2_cmd_list_env_vars();
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800396
Matthias Lederhofer0347a8c2006-07-30 03:30:29 +0200397 *argv = new_argv;
398 *argcp += count - 1;
399
400 ret = 1;
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200401 }
402
Johannes Schindelin47e5c0c2006-06-28 12:45:27 +0200403 errno = saved_errno;
404
Johannes Schindelin2b11e312006-06-05 19:43:52 +0200405 return ret;
406}
407
Jeff Kingf172f332009-01-28 02:33:53 -0500408static int run_builtin(struct cmd_struct *p, int argc, const char **argv)
Linus Torvalds47d0b4f2007-06-24 10:10:40 -0700409{
Jonathan Nieder99caeed2009-11-09 09:05:01 -0600410 int status, help;
Linus Torvalds0f157312007-06-24 10:29:33 -0700411 struct stat st;
Linus Torvalds47d0b4f2007-06-24 10:10:40 -0700412 const char *prefix;
413
414 prefix = NULL;
Jonathan Nieder99caeed2009-11-09 09:05:01 -0600415 help = argc == 2 && !strcmp(argv[1], "-h");
416 if (!help) {
417 if (p->option & RUN_SETUP)
418 prefix = setup_git_directory();
Luis R. Rodriguez27bd38d2014-04-21 17:47:56 -0700419 else if (p->option & RUN_SETUP_GENTLY) {
Nguyễn Thái Ngọc Duyee38dfb2010-08-05 21:52:16 -0500420 int nongit_ok;
421 prefix = setup_git_directory_gently(&nongit_ok);
422 }
Jeff King4e107382008-07-03 07:46:57 -0400423
Martin Ågrenc4098242017-08-02 21:40:50 +0200424 if (use_pager == -1 && p->option & (RUN_SETUP | RUN_SETUP_GENTLY) &&
425 !(p->option & DELAY_PAGER_CONFIG))
Jonathan Nieder99caeed2009-11-09 09:05:01 -0600426 use_pager = check_pager_config(p->cmd);
427 if (use_pager == -1 && p->option & USE_PAGER)
428 use_pager = 1;
Nguyễn Thái Ngọc Duya9ca8a82010-11-26 22:31:57 +0700429
430 if ((p->option & (RUN_SETUP | RUN_SETUP_GENTLY)) &&
431 startup_info->have_repository) /* get_git_dir() may set up repo, avoid that */
432 trace_repo_setup(prefix);
Jonathan Nieder99caeed2009-11-09 09:05:01 -0600433 }
Jeff King4e107382008-07-03 07:46:57 -0400434 commit_pager_choice();
435
Brandon Williams74866d72016-10-07 11:18:48 -0700436 if (!help && get_super_prefix()) {
437 if (!(p->option & SUPPORT_SUPER_PREFIX))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100438 die(_("%s doesn't support --super-prefix"), p->cmd);
Brandon Williams74866d72016-10-07 11:18:48 -0700439 }
440
Jonathan Nieder99caeed2009-11-09 09:05:01 -0600441 if (!help && p->option & NEED_WORK_TREE)
Mike Hommey59f0f2f2007-11-03 12:23:11 +0100442 setup_work_tree();
443
Christian Couderb319ce42007-12-03 05:51:50 +0100444 trace_argv_printf(argv, "trace: built-in: git");
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800445 trace2_cmd_name(p->cmd);
446 trace2_cmd_list_config();
Josh Steadmon3d3adaa2020-03-20 14:06:15 -0700447 trace2_cmd_list_env_vars();
Linus Torvalds47d0b4f2007-06-24 10:10:40 -0700448
Nguyễn Thái Ngọc Duyf8adbec2019-01-24 15:29:12 +0700449 validate_cache_entries(the_repository->index);
Linus Torvalds0f157312007-06-24 10:29:33 -0700450 status = p->fn(argc, argv, prefix);
Nguyễn Thái Ngọc Duyf8adbec2019-01-24 15:29:12 +0700451 validate_cache_entries(the_repository->index);
Jameson Miller8616a2d2018-07-02 19:49:39 +0000452
Linus Torvalds0f157312007-06-24 10:29:33 -0700453 if (status)
Johannes Sixt47e3de02009-07-05 20:57:46 +0200454 return status;
Linus Torvalds0f157312007-06-24 10:29:33 -0700455
456 /* Somebody closed stdout? */
457 if (fstat(fileno(stdout), &st))
458 return 0;
459 /* Ignore write errors for pipes and sockets.. */
460 if (S_ISFIFO(st.st_mode) || S_ISSOCK(st.st_mode))
461 return 0;
462
463 /* Check for ENOSPC and EIO errors.. */
Linus Torvalds0227f982007-06-30 11:44:20 -0700464 if (fflush(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100465 die_errno(_("write failure on standard output"));
Linus Torvalds0227f982007-06-30 11:44:20 -0700466 if (ferror(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100467 die(_("unknown write failure on standard output"));
Linus Torvalds0227f982007-06-30 11:44:20 -0700468 if (fclose(stdout))
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100469 die_errno(_("close failed on standard output"));
Linus Torvalds0f157312007-06-24 10:29:33 -0700470 return 0;
Linus Torvalds47d0b4f2007-06-24 10:10:40 -0700471}
472
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100473static struct cmd_struct commands[] = {
474 { "add", cmd_add, RUN_SETUP | NEED_WORK_TREE },
Paul Tan783d7e82015-08-04 21:52:06 +0800475 { "am", cmd_am, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100476 { "annotate", cmd_annotate, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100477 { "apply", cmd_apply, RUN_SETUP_GENTLY },
Junio C Hamanoeb0224c2016-11-22 13:37:04 -0800478 { "archive", cmd_archive, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100479 { "bisect--helper", cmd_bisect__helper, RUN_SETUP },
480 { "blame", cmd_blame, RUN_SETUP },
Martin Ågrend74b5412017-11-19 16:03:49 +0100481 { "branch", cmd_branch, RUN_SETUP | DELAY_PAGER_CONFIG },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100482 { "bundle", cmd_bundle, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100483 { "cat-file", cmd_cat_file, RUN_SETUP },
484 { "check-attr", cmd_check_attr, RUN_SETUP },
485 { "check-ignore", cmd_check_ignore, RUN_SETUP | NEED_WORK_TREE },
486 { "check-mailmap", cmd_check_mailmap, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100487 { "check-ref-format", cmd_check_ref_format, NO_PARSEOPT },
Eric Sunshine0ca560c2015-07-06 13:30:56 -0400488 { "checkout", cmd_checkout, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100489 { "checkout-index", cmd_checkout_index,
490 RUN_SETUP | NEED_WORK_TREE},
491 { "cherry", cmd_cherry, RUN_SETUP },
492 { "cherry-pick", cmd_cherry_pick, RUN_SETUP | NEED_WORK_TREE },
493 { "clean", cmd_clean, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duy86d26f22015-12-20 14:50:18 +0700494 { "clone", cmd_clone },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100495 { "column", cmd_column, RUN_SETUP_GENTLY },
496 { "commit", cmd_commit, RUN_SETUP | NEED_WORK_TREE },
Derrick Stolee4ce58ee2018-04-02 16:34:18 -0400497 { "commit-graph", cmd_commit_graph, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100498 { "commit-tree", cmd_commit_tree, RUN_SETUP | NO_PARSEOPT },
Martin Ågren32888b82018-02-21 19:51:43 +0100499 { "config", cmd_config, RUN_SETUP_GENTLY | DELAY_PAGER_CONFIG },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100500 { "count-objects", cmd_count_objects, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100501 { "credential", cmd_credential, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100502 { "describe", cmd_describe, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100503 { "diff", cmd_diff, NO_PARSEOPT },
504 { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
505 { "diff-index", cmd_diff_index, RUN_SETUP | NO_PARSEOPT },
506 { "diff-tree", cmd_diff_tree, RUN_SETUP | NO_PARSEOPT },
Johannes Schindelin20de3162019-03-14 04:25:04 -0700507 { "difftool", cmd_difftool, RUN_SETUP_GENTLY },
Ævar Arnfjörð Bjarmasonb4f207f2019-06-21 12:18:06 +0200508 { "env--helper", cmd_env__helper },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100509 { "fast-export", cmd_fast_export, RUN_SETUP },
510 { "fetch", cmd_fetch, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100511 { "fetch-pack", cmd_fetch_pack, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100512 { "fmt-merge-msg", cmd_fmt_merge_msg, RUN_SETUP },
513 { "for-each-ref", cmd_for_each_ref, RUN_SETUP },
Derrick Stolee4950b2a2020-09-11 17:49:16 +0000514 { "for-each-repo", cmd_for_each_repo, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100515 { "format-patch", cmd_format_patch, RUN_SETUP },
516 { "fsck", cmd_fsck, RUN_SETUP },
517 { "fsck-objects", cmd_fsck, RUN_SETUP },
518 { "gc", cmd_gc, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100519 { "get-tar-commit-id", cmd_get_tar_commit_id, NO_PARSEOPT },
Brandon Williamsf9ee2fc2017-08-02 12:49:23 -0700520 { "grep", cmd_grep, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100521 { "hash-object", cmd_hash_object },
522 { "help", cmd_help },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100523 { "index-pack", cmd_index_pack, RUN_SETUP_GENTLY | NO_PARSEOPT },
Nguyễn Thái Ngọc Duy86d26f22015-12-20 14:50:18 +0700524 { "init", cmd_init_db },
525 { "init-db", cmd_init_db },
John Keepingcbd9fc22015-09-05 14:39:24 +0100526 { "interpret-trailers", cmd_interpret_trailers, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100527 { "log", cmd_log, RUN_SETUP },
Brandon Williams188dce12017-06-22 11:43:48 -0700528 { "ls-files", cmd_ls_files, RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100529 { "ls-remote", cmd_ls_remote, RUN_SETUP_GENTLY },
530 { "ls-tree", cmd_ls_tree, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100531 { "mailinfo", cmd_mailinfo, RUN_SETUP_GENTLY | NO_PARSEOPT },
532 { "mailsplit", cmd_mailsplit, NO_PARSEOPT },
Derrick Stolee2057d752020-09-17 18:11:42 +0000533 { "maintenance", cmd_maintenance, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100534 { "merge", cmd_merge, RUN_SETUP | NEED_WORK_TREE },
535 { "merge-base", cmd_merge_base, RUN_SETUP },
536 { "merge-file", cmd_merge_file, RUN_SETUP_GENTLY },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100537 { "merge-index", cmd_merge_index, RUN_SETUP | NO_PARSEOPT },
538 { "merge-ours", cmd_merge_ours, RUN_SETUP | NO_PARSEOPT },
539 { "merge-recursive", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
540 { "merge-recursive-ours", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
541 { "merge-recursive-theirs", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
542 { "merge-subtree", cmd_merge_recursive, RUN_SETUP | NEED_WORK_TREE | NO_PARSEOPT },
543 { "merge-tree", cmd_merge_tree, RUN_SETUP | NO_PARSEOPT },
544 { "mktag", cmd_mktag, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100545 { "mktree", cmd_mktree, RUN_SETUP },
Derrick Stolee6a257f02018-07-12 15:39:20 -0400546 { "multi-pack-index", cmd_multi_pack_index, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100547 { "mv", cmd_mv, RUN_SETUP | NEED_WORK_TREE },
548 { "name-rev", cmd_name_rev, RUN_SETUP },
549 { "notes", cmd_notes, RUN_SETUP },
550 { "pack-objects", cmd_pack_objects, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100551 { "pack-redundant", cmd_pack_redundant, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100552 { "pack-refs", cmd_pack_refs, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100553 { "patch-id", cmd_patch_id, RUN_SETUP_GENTLY | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100554 { "pickaxe", cmd_blame, RUN_SETUP },
555 { "prune", cmd_prune, RUN_SETUP },
556 { "prune-packed", cmd_prune_packed, RUN_SETUP },
Paul Tan1e1ea692015-06-14 16:41:51 +0800557 { "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100558 { "push", cmd_push, RUN_SETUP },
Johannes Schindelin348ae562018-08-13 04:33:02 -0700559 { "range-diff", cmd_range_diff, RUN_SETUP | USE_PAGER },
Stefan Beller3d415422017-01-17 17:05:20 -0800560 { "read-tree", cmd_read_tree, RUN_SETUP | SUPPORT_SUPER_PREFIX},
Johannes Schindelin80dfc922019-07-24 14:15:00 -0700561 { "rebase", cmd_rebase, RUN_SETUP | NEED_WORK_TREE },
Alban Gruincf808202018-09-27 23:56:09 +0200562 { "rebase--interactive", cmd_rebase__interactive, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100563 { "receive-pack", cmd_receive_pack },
564 { "reflog", cmd_reflog, RUN_SETUP },
565 { "remote", cmd_remote, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100566 { "remote-ext", cmd_remote_ext, NO_PARSEOPT },
567 { "remote-fd", cmd_remote_fd, NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100568 { "repack", cmd_repack, RUN_SETUP },
569 { "replace", cmd_replace, RUN_SETUP },
570 { "rerere", cmd_rerere, RUN_SETUP },
571 { "reset", cmd_reset, RUN_SETUP },
Nguyễn Thái Ngọc Duy46e91b62019-04-25 16:45:45 +0700572 { "restore", cmd_restore, RUN_SETUP | NEED_WORK_TREE },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100573 { "rev-list", cmd_rev_list, RUN_SETUP | NO_PARSEOPT },
574 { "rev-parse", cmd_rev_parse, NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100575 { "revert", cmd_revert, RUN_SETUP | NEED_WORK_TREE },
576 { "rm", cmd_rm, RUN_SETUP },
577 { "send-pack", cmd_send_pack, RUN_SETUP },
578 { "shortlog", cmd_shortlog, RUN_SETUP_GENTLY | USE_PAGER },
579 { "show", cmd_show, RUN_SETUP },
580 { "show-branch", cmd_show_branch, RUN_SETUP },
brian m. carlson88a09a52020-05-25 19:59:12 +0000581 { "show-index", cmd_show_index, RUN_SETUP_GENTLY },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100582 { "show-ref", cmd_show_ref, RUN_SETUP },
Derrick Stolee94c09562019-11-21 22:04:33 +0000583 { "sparse-checkout", cmd_sparse_checkout, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100584 { "stage", cmd_add, RUN_SETUP | NEED_WORK_TREE },
Thomas Gummerer8a2cd3f2020-03-03 17:46:13 +0000585 { "stash", cmd_stash, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100586 { "status", cmd_status, RUN_SETUP | NEED_WORK_TREE },
587 { "stripspace", cmd_stripspace },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100588 { "submodule--helper", cmd_submodule__helper, RUN_SETUP | SUPPORT_SUPER_PREFIX | NO_PARSEOPT },
Nguyễn Thái Ngọc Duyd787d312019-03-29 17:39:05 +0700589 { "switch", cmd_switch, RUN_SETUP | NEED_WORK_TREE },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100590 { "symbolic-ref", cmd_symbolic_ref, RUN_SETUP },
Martin Ågrende121ff2017-08-02 21:40:53 +0200591 { "tag", cmd_tag, RUN_SETUP | DELAY_PAGER_CONFIG },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100592 { "unpack-file", cmd_unpack_file, RUN_SETUP | NO_PARSEOPT },
593 { "unpack-objects", cmd_unpack_objects, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100594 { "update-index", cmd_update_index, RUN_SETUP },
595 { "update-ref", cmd_update_ref, RUN_SETUP },
596 { "update-server-info", cmd_update_server_info, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100597 { "upload-archive", cmd_upload_archive, NO_PARSEOPT },
598 { "upload-archive--writer", cmd_upload_archive_writer, NO_PARSEOPT },
Brandon Williamsa3d6b532018-03-14 11:31:41 -0700599 { "upload-pack", cmd_upload_pack },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100600 { "var", cmd_var, RUN_SETUP_GENTLY | NO_PARSEOPT },
Michael J Gruberd07b00b2014-06-23 09:05:49 +0200601 { "verify-commit", cmd_verify_commit, RUN_SETUP },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100602 { "verify-pack", cmd_verify_pack },
603 { "verify-tag", cmd_verify_tag, RUN_SETUP },
604 { "version", cmd_version },
605 { "whatchanged", cmd_whatchanged, RUN_SETUP },
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100606 { "worktree", cmd_worktree, RUN_SETUP | NO_PARSEOPT },
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100607 { "write-tree", cmd_write_tree, RUN_SETUP },
608};
609
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100610static struct cmd_struct *get_builtin(const char *s)
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100611{
612 int i;
613 for (i = 0; i < ARRAY_SIZE(commands); i++) {
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100614 struct cmd_struct *p = commands + i;
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100615 if (!strcmp(s, p->cmd))
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100616 return p;
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100617 }
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100618 return NULL;
619}
620
621int is_builtin(const char *s)
622{
623 return !!get_builtin(s);
Sebastian Schuberthc6127fa2014-01-02 17:17:11 +0100624}
625
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +0200626static void list_builtins(struct string_list *out, unsigned int exclude_option)
Jeff King8893fd92017-05-30 01:18:43 -0400627{
628 int i;
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100629 for (i = 0; i < ARRAY_SIZE(commands); i++) {
630 if (exclude_option &&
631 (commands[i].option & exclude_option))
632 continue;
Nguyễn Thái Ngọc Duye5d7a612018-05-20 20:39:58 +0200633 string_list_append(out, commands[i].cmd);
Nguyễn Thái Ngọc Duye9547942018-03-24 21:35:19 +0100634 }
Jeff King8893fd92017-05-30 01:18:43 -0400635}
636
Alexander Kuleshov63ca1c02016-02-22 13:18:29 +0600637#ifdef STRIP_EXTENSION
638static void strip_extension(const char **argv)
639{
640 size_t len;
641
642 if (strip_suffix(argv[0], STRIP_EXTENSION, &len))
643 argv[0] = xmemdupz(argv[0], len);
644}
645#else
646#define strip_extension(cmd)
647#endif
648
Sebastian Schuberth3f784a42014-01-02 17:15:44 +0100649static void handle_builtin(int argc, const char **argv)
Linus Torvalds231af832006-02-26 12:34:51 -0800650{
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400651 struct strvec args = STRVEC_INIT;
Alexander Kuleshov63ca1c02016-02-22 13:18:29 +0600652 const char *cmd;
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100653 struct cmd_struct *builtin;
Johannes Sixt23326d12007-12-08 20:57:25 +0100654
Alexander Kuleshov63ca1c02016-02-22 13:18:29 +0600655 strip_extension(argv);
656 cmd = argv[0];
Linus Torvalds231af832006-02-26 12:34:51 -0800657
Ralf Thielow2c6b6d92016-08-26 19:58:36 +0200658 /* Turn "git cmd --help" into "git help --exclude-guides cmd" */
Linus Torvalds1cd95082006-04-15 11:13:49 -0700659 if (argc > 1 && !strcmp(argv[1], "--help")) {
Ralf Thielow2c6b6d92016-08-26 19:58:36 +0200660 int i;
661
Linus Torvalds1cd95082006-04-15 11:13:49 -0700662 argv[1] = argv[0];
663 argv[0] = cmd = "help";
Ralf Thielow2c6b6d92016-08-26 19:58:36 +0200664
665 for (i = 0; i < argc; i++) {
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400666 strvec_push(&args, argv[i]);
Ralf Thielow2c6b6d92016-08-26 19:58:36 +0200667 if (!i)
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400668 strvec_push(&args, "--exclude-guides");
Ralf Thielow2c6b6d92016-08-26 19:58:36 +0200669 }
670
671 argc++;
Jeff Kingd70a9eb2020-07-28 20:37:20 -0400672 argv = args.v;
Linus Torvalds1cd95082006-04-15 11:13:49 -0700673 }
674
Slavomir Vlcekc4f901d2014-11-12 14:10:22 +0100675 builtin = get_builtin(cmd);
Junio C Hamano441981b2016-01-26 22:52:02 -0800676 if (builtin)
677 exit(run_builtin(builtin, argc, argv));
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400678 strvec_clear(&args);
Linus Torvalds231af832006-02-26 12:34:51 -0800679}
680
Junio C Hamano7550be02007-12-01 22:09:22 -0800681static void execv_dashed_external(const char **argv)
682{
Jeff King2b296c92017-01-06 20:16:24 -0500683 struct child_process cmd = CHILD_PROCESS_INIT;
Jeff Kingd8e96fd2009-01-28 02:38:14 -0500684 int status;
Junio C Hamano7550be02007-12-01 22:09:22 -0800685
Brandon Williams74866d72016-10-07 11:18:48 -0700686 if (get_super_prefix())
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100687 die(_("%s doesn't support --super-prefix"), argv[0]);
Brandon Williams74866d72016-10-07 11:18:48 -0700688
Martin Ågren595d59e2017-08-02 21:40:55 +0200689 if (use_pager == -1 && !is_builtin(argv[0]))
Jeff King92058e42011-08-18 15:01:32 -0700690 use_pager = check_pager_config(argv[0]);
Jonathan Nieder030149a2010-07-14 17:55:12 -0500691 commit_pager_choice();
692
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400693 strvec_pushf(&cmd.args, "git-%s", argv[0]);
694 strvec_pushv(&cmd.args, argv + 1);
Jeff King2b296c92017-01-06 20:16:24 -0500695 cmd.clean_on_exit = 1;
Jeff King46df6902017-01-06 20:22:23 -0500696 cmd.wait_after_clean = 1;
Jeff King2b296c92017-01-06 20:16:24 -0500697 cmd.silent_exec_failure = 1;
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800698 cmd.trace2_child_class = "dashed";
Junio C Hamano7550be02007-12-01 22:09:22 -0800699
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800700 trace2_cmd_name("_run_dashed_");
701
702 /*
703 * The code in run_command() logs trace2 child_start/child_exit
704 * events, so we do not need to report exec/exec_result events here.
705 */
Jeff Kingd70a9eb2020-07-28 20:37:20 -0400706 trace_argv_printf(cmd.args.v, "trace: exec:");
Junio C Hamano7550be02007-12-01 22:09:22 -0800707
708 /*
Jeff King246f0ed2017-01-06 20:17:48 -0500709 * If we fail because the command is not found, it is
710 * OK to return. Otherwise, we just pass along the status code,
711 * or our usual generic code if we were not even able to exec
712 * the program.
Junio C Hamano7550be02007-12-01 22:09:22 -0800713 */
Jeff King2b296c92017-01-06 20:16:24 -0500714 status = run_command(&cmd);
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800715
716 /*
717 * If the child process ran and we are now going to exit, emit a
718 * generic string as our trace2 command verb to indicate that we
719 * launched a dashed command.
720 */
Jeff King246f0ed2017-01-06 20:17:48 -0500721 if (status >= 0)
Johannes Sixt5709e032009-07-04 21:26:39 +0200722 exit(status);
Jeff King246f0ed2017-01-06 20:17:48 -0500723 else if (errno != ENOENT)
724 exit(128);
Junio C Hamano7550be02007-12-01 22:09:22 -0800725}
726
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100727static int run_argv(int *argcp, const char ***argv)
728{
729 int done_alias = 0;
Tim Schumacherc6d75bc2018-09-16 09:50:00 +0200730 struct string_list cmd_list = STRING_LIST_INIT_NODUP;
Tim Schumacher82f71d92018-09-16 09:50:01 +0200731 struct string_list_item *seen;
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100732
733 while (1) {
Junio C Hamano441981b2016-01-26 22:52:02 -0800734 /*
735 * If we tried alias and futzed with our environment,
736 * it no longer is safe to invoke builtins directly in
737 * general. We have to spawn them as dashed externals.
738 *
739 * NEEDSWORK: if we can figure out cases
740 * where it is safe to do, we can avoid spawning a new
741 * process.
742 */
743 if (!done_alias)
744 handle_builtin(*argcp, *argv);
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800745 else if (get_builtin(**argv)) {
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400746 struct strvec args = STRVEC_INIT;
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800747 int i;
748
749 /*
750 * The current process is committed to launching a
751 * child process to run the command named in (**argv)
752 * and exiting. Log a generic string as the trace2
753 * command verb to indicate this. Note that the child
754 * process will log the actual verb when it runs.
755 */
756 trace2_cmd_name("_run_git_alias_");
757
758 if (get_super_prefix())
759 die("%s doesn't support --super-prefix", **argv);
760
761 commit_pager_choice();
762
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400763 strvec_push(&args, "git");
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800764 for (i = 0; i < *argcp; i++)
Jeff Kingef8d7ac2020-07-28 16:24:53 -0400765 strvec_push(&args, (*argv)[i]);
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800766
Jeff Kingd70a9eb2020-07-28 20:37:20 -0400767 trace_argv_printf(args.v, "trace: exec:");
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800768
769 /*
770 * if we fail because the command is not found, it is
771 * OK to return. Otherwise, we just pass along the status code.
772 */
Jeff Kingd70a9eb2020-07-28 20:37:20 -0400773 i = run_command_v_opt_tr2(args.v, RUN_SILENT_EXEC_FAILURE |
Trygve Aabergee662df72020-07-07 14:17:14 +0200774 RUN_CLEAN_ON_EXIT | RUN_WAIT_AFTER_CLEAN, "git_alias");
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800775 if (i >= 0 || errno != ENOENT)
776 exit(i);
777 die("could not execute builtin %s", **argv);
778 }
Jeff Hostetleree4512e2019-02-22 14:25:01 -0800779
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100780 /* .. then try the external ones */
781 execv_dashed_external(*argv);
782
Tim Schumacher82f71d92018-09-16 09:50:01 +0200783 seen = unsorted_string_list_lookup(&cmd_list, *argv[0]);
784 if (seen) {
785 int i;
786 struct strbuf sb = STRBUF_INIT;
787 for (i = 0; i < cmd_list.nr; i++) {
788 struct string_list_item *item = &cmd_list.items[i];
789
790 strbuf_addf(&sb, "\n %s", item->string);
791 if (item == seen)
792 strbuf_addstr(&sb, " <==");
793 else if (i == cmd_list.nr - 1)
794 strbuf_addstr(&sb, " ==>");
795 }
Tim Schumacherc6d75bc2018-09-16 09:50:00 +0200796 die(_("alias loop detected: expansion of '%s' does"
Tim Schumacher82f71d92018-09-16 09:50:01 +0200797 " not terminate:%s"), cmd_list.items[0].string, sb.buf);
Tim Schumacherc6d75bc2018-09-16 09:50:00 +0200798 }
799
800 string_list_append(&cmd_list, *argv[0]);
801
802 /*
803 * It could be an alias -- this works around the insanity
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100804 * of overriding "git log" with "git show" by having
805 * alias.log = show
806 */
Nguyễn Thái Ngọc Duyc0562612014-06-08 16:37:10 +0700807 if (!handle_alias(argcp, argv))
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100808 break;
809 done_alias = 1;
810 }
811
Tim Schumacherc6d75bc2018-09-16 09:50:00 +0200812 string_list_clear(&cmd_list, 0);
813
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100814 return done_alias;
815}
816
Jeff King3f2e2292016-07-01 01:58:58 -0400817int cmd_main(int argc, const char **argv)
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100818{
Steve Haslam4dd47c32009-01-18 13:00:10 +0100819 const char *cmd;
Alexander Kuleshov8fa79752015-03-02 18:02:37 +0600820 int done_help = 0;
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100821
Jeff King650c4492016-07-01 02:04:04 -0400822 cmd = argv[0];
Steffen Prohaska2cd72b02009-01-18 13:00:11 +0100823 if (!cmd)
Steve Haslam4dd47c32009-01-18 13:00:10 +0100824 cmd = "git-help";
Jeff King6854a8f2016-11-26 23:31:13 -0500825 else {
826 const char *slash = find_last_dir_sep(cmd);
827 if (slash)
828 cmd = slash + 1;
829 }
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100830
Karsten Blees578da032014-07-12 02:07:01 +0200831 trace_command_performance(argv);
832
Linus Torvalds231af832006-02-26 12:34:51 -0800833 /*
834 * "git-xxxx" is the same as "git xxxx", but we obviously:
835 *
836 * - cannot take flags in between the "git" and the "xxxx".
837 * - cannot execute it externally (since it would just do
838 * the same thing over again)
839 *
Sebastian Schuberth3f784a42014-01-02 17:15:44 +0100840 * So we just directly call the builtin handler, and die if
841 * that one cannot handle it.
Linus Torvalds231af832006-02-26 12:34:51 -0800842 */
Jeff Kingae021d82014-06-18 15:47:50 -0400843 if (skip_prefix(cmd, "git-", &cmd)) {
Linus Torvalds231af832006-02-26 12:34:51 -0800844 argv[0] = cmd;
Sebastian Schuberth3f784a42014-01-02 17:15:44 +0100845 handle_builtin(argc, argv);
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100846 die(_("cannot handle %s as a builtin"), cmd);
Linus Torvalds231af832006-02-26 12:34:51 -0800847 }
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100848
Linus Torvalds231af832006-02-26 12:34:51 -0800849 /* Look for flags.. */
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200850 argv++;
851 argc--;
Matthias Lederhofer4394efe2007-06-08 22:57:55 +0200852 handle_options(&argv, &argc, NULL);
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200853 if (argc > 0) {
Jeff King6d877802014-06-18 15:56:48 -0400854 /* translate --help and --version into commands */
855 skip_prefix(argv[0], "--", &argv[0]);
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200856 } else {
Scott R Parish3d7e2d82007-10-27 01:36:49 -0700857 /* The user didn't specify a command; give them help */
Nguyễn Thái Ngọc Duy73e25e72010-06-26 14:26:37 -0500858 commit_pager_choice();
Nguyễn Thái Ngọc Duy8aa8c142018-11-10 06:16:00 +0100859 printf(_("usage: %s\n\n"), git_usage_string);
Scott R Parish3d7e2d82007-10-27 01:36:49 -0700860 list_common_cmds_help();
Kevin Bracey421a9762013-03-10 17:10:20 +0200861 printf("\n%s\n", _(git_more_info_string));
Scott R Parish3d7e2d82007-10-27 01:36:49 -0700862 exit(1);
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100863 }
Johannes Schindelin6acbcb92006-07-25 20:24:22 +0200864 cmd = argv[0];
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100865
Linus Torvalds231af832006-02-26 12:34:51 -0800866 /*
Scott R Parish511707d2007-10-28 04:17:20 -0700867 * We use PATH to find git commands, but we prepend some higher
Mike Ralphson3ea3c212009-04-17 19:13:30 +0100868 * precedence paths: the "--exec-path" option, the GIT_EXEC_PATH
Scott R Parish511707d2007-10-28 04:17:20 -0700869 * environment, and the $(gitexecdir) from the Makefile at build
870 * time.
Linus Torvalds231af832006-02-26 12:34:51 -0800871 */
Johannes Sixte1464ca2008-07-21 21:19:52 +0200872 setup_path();
Junio C Hamano7dbc2c02005-11-15 23:13:30 -0800873
Junio C Hamanoa0254632006-06-05 18:09:40 -0700874 while (1) {
Alexander Kuleshov8fa79752015-03-02 18:02:37 +0600875 int was_alias = run_argv(&argc, &argv);
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100876 if (errno != ENOENT)
Junio C Hamanoa0254632006-06-05 18:09:40 -0700877 break;
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100878 if (was_alias) {
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100879 fprintf(stderr, _("expansion of alias '%s' failed; "
880 "'%s' is not a git command\n"),
Theodore Ts'of3dd0152007-02-10 19:33:57 -0500881 cmd, argv[0]);
882 exit(1);
883 }
Adeodato Simóa907e1b2009-01-04 18:16:01 +0100884 if (!done_help) {
885 cmd = argv[0] = help_unknown_cmd(cmd);
886 done_help = 1;
887 } else
888 break;
Theodore Ts'of3dd0152007-02-10 19:33:57 -0500889 }
Alex Riesen10b15b82005-12-01 13:48:35 +0100890
Alexander Shopovfc045fe2018-02-13 14:19:15 +0100891 fprintf(stderr, _("failed to run command '%s': %s\n"),
Andreas Ericsson33ebb872006-06-28 02:17:21 -0700892 cmd, strerror(errno));
Andreas Ericsson8e49d502005-11-16 00:31:25 +0100893
894 return 1;
895}