Windows: boost startup by avoiding a static dependency on shell32.dll
[git/dscho.git] / builtin-push.c
blob28a26e7db2a86bf1514cdd54f9735c0be146dce7
1 /*
2 * "git push"
3 */
4 #include "cache.h"
5 #include "refs.h"
6 #include "run-command.h"
7 #include "builtin.h"
8 #include "remote.h"
9 #include "transport.h"
10 #include "parse-options.h"
12 static const char * const push_usage[] = {
13 "git push [<options>] [<repository> <refspec>...]",
14 NULL,
17 static int thin;
18 static int deleterefs;
19 static const char *receivepack;
21 static const char **refspec;
22 static int refspec_nr;
24 static void add_refspec(const char *ref)
26 int nr = refspec_nr + 1;
27 refspec = xrealloc(refspec, nr * sizeof(char *));
28 refspec[nr-1] = ref;
29 refspec_nr = nr;
32 static void set_refspecs(const char **refs, int nr)
34 int i;
35 for (i = 0; i < nr; i++) {
36 const char *ref = refs[i];
37 if (!strcmp("tag", ref)) {
38 char *tag;
39 int len;
40 if (nr <= ++i)
41 die("tag shorthand without <tag>");
42 len = strlen(refs[i]) + 11;
43 if (deleterefs) {
44 tag = xmalloc(len+1);
45 strcpy(tag, ":refs/tags/");
46 } else {
47 tag = xmalloc(len);
48 strcpy(tag, "refs/tags/");
50 strcat(tag, refs[i]);
51 ref = tag;
52 } else if (deleterefs && !strchr(ref, ':')) {
53 char *delref;
54 int len = strlen(ref)+1;
55 delref = xmalloc(len);
56 strcpy(delref, ":");
57 strcat(delref, ref);
58 ref = delref;
59 } else if (deleterefs)
60 die("--delete only accepts plain target ref names");
61 add_refspec(ref);
65 static void setup_push_tracking(void)
67 struct strbuf refspec = STRBUF_INIT;
68 struct branch *branch = branch_get(NULL);
69 if (!branch)
70 die("You are not currently on a branch.");
71 if (!branch->merge_nr)
72 die("The current branch %s is not tracking anything.",
73 branch->name);
74 if (branch->merge_nr != 1)
75 die("The current branch %s is tracking multiple branches, "
76 "refusing to push.", branch->name);
77 strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
78 add_refspec(refspec.buf);
81 static void setup_default_push_refspecs(void)
83 switch (push_default) {
84 default:
85 case PUSH_DEFAULT_MATCHING:
86 add_refspec(":");
87 break;
89 case PUSH_DEFAULT_TRACKING:
90 setup_push_tracking();
91 break;
93 case PUSH_DEFAULT_CURRENT:
94 add_refspec("HEAD");
95 break;
97 case PUSH_DEFAULT_NOTHING:
98 die("You didn't specify any refspecs to push, and "
99 "push.default is \"nothing\".");
100 break;
104 static int push_with_options(struct transport *transport, int flags)
106 int err;
107 int nonfastforward;
108 if (receivepack)
109 transport_set_option(transport,
110 TRANS_OPT_RECEIVEPACK, receivepack);
111 if (thin)
112 transport_set_option(transport, TRANS_OPT_THIN, "yes");
114 if (flags & TRANSPORT_PUSH_VERBOSE)
115 fprintf(stderr, "Pushing to %s\n", transport->url);
116 err = transport_push(transport, refspec_nr, refspec, flags,
117 &nonfastforward);
118 if (err != 0)
119 error("failed to push some refs to '%s'", transport->url);
121 err |= transport_disconnect(transport);
123 if (!err)
124 return 0;
126 if (nonfastforward && advice_push_nonfastforward) {
127 printf("To prevent you from losing history, non-fast-forward updates were rejected\n"
128 "Merge the remote changes before pushing again. See the 'Note about\n"
129 "fast-forwards' section of 'git push --help' for details.\n");
132 return 1;
135 static int do_push(const char *repo, int flags)
137 int i, errs;
138 struct remote *remote = remote_get(repo);
139 const char **url;
140 int url_nr;
142 if (!remote) {
143 if (repo)
144 die("bad repository '%s'", repo);
145 die("No destination configured to push to.");
148 if (remote->mirror)
149 flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
151 if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
152 if (!strcmp(*refspec, "refs/tags/*"))
153 return error("--all and --tags are incompatible");
154 return error("--all can't be combined with refspecs");
157 if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
158 if (!strcmp(*refspec, "refs/tags/*"))
159 return error("--mirror and --tags are incompatible");
160 return error("--mirror can't be combined with refspecs");
163 if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
164 (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
165 return error("--all and --mirror are incompatible");
168 if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) {
169 if (remote->push_refspec_nr) {
170 refspec = remote->push_refspec;
171 refspec_nr = remote->push_refspec_nr;
172 } else if (!(flags & TRANSPORT_PUSH_MIRROR))
173 setup_default_push_refspecs();
175 errs = 0;
176 if (remote->pushurl_nr) {
177 url = remote->pushurl;
178 url_nr = remote->pushurl_nr;
179 } else {
180 url = remote->url;
181 url_nr = remote->url_nr;
183 if (url_nr) {
184 for (i = 0; i < url_nr; i++) {
185 struct transport *transport =
186 transport_get(remote, url[i]);
187 if (push_with_options(transport, flags))
188 errs++;
190 } else {
191 struct transport *transport =
192 transport_get(remote, NULL);
194 if (push_with_options(transport, flags))
195 errs++;
197 return !!errs;
200 int cmd_push(int argc, const char **argv, const char *prefix)
202 int flags = 0;
203 int tags = 0;
204 int rc;
205 const char *repo = NULL; /* default repository */
206 struct option options[] = {
207 OPT_BIT('q', "quiet", &flags, "be quiet", TRANSPORT_PUSH_QUIET),
208 OPT_BIT('v', "verbose", &flags, "be verbose", TRANSPORT_PUSH_VERBOSE),
209 OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
210 OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL),
211 OPT_BIT( 0 , "mirror", &flags, "mirror all refs",
212 (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
213 OPT_BOOLEAN( 0, "delete", &deleterefs, "delete refs"),
214 OPT_BOOLEAN( 0 , "tags", &tags, "push tags (can't be used with --all or --mirror)"),
215 OPT_BIT('n' , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN),
216 OPT_BIT( 0, "porcelain", &flags, "machine-readable output", TRANSPORT_PUSH_PORCELAIN),
217 OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE),
218 OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"),
219 OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"),
220 OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"),
221 OPT_END()
224 git_config(git_default_config, NULL);
225 argc = parse_options(argc, argv, prefix, options, push_usage, 0);
227 if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
228 die("--delete is incompatible with --all, --mirror and --tags");
229 if (deleterefs && argc < 2)
230 die("--delete doesn't make sense without any refs");
232 if (tags)
233 add_refspec("refs/tags/*");
235 if (argc > 0) {
236 repo = argv[0];
237 set_refspecs(argv + 1, argc - 1);
240 rc = do_push(repo, flags);
241 if (rc == -1)
242 usage_with_options(push_usage, options);
243 else
244 return rc;