make --exec=... option to git-push configurable
[git/git.git] / builtin-push.c
CommitLineData
755225de
LT
1/*
2 * "git push"
3 */
4#include "cache.h"
5#include "refs.h"
6#include "run-command.h"
7#include "builtin.h"
8
9#define MAX_URI (16)
10
18bd8821 11static const char push_usage[] = "git-push [--all] [--tags] [--exec=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
755225de 12
bcc785f6 13static int all, tags, force, thin = 1, verbose;
96f1e58f 14static const char *execute;
755225de
LT
15
16#define BUF_SIZE (2084)
17static char buffer[BUF_SIZE];
18
96f1e58f
DR
19static const char **refspec;
20static int refspec_nr;
755225de
LT
21
22static void add_refspec(const char *ref)
23{
24 int nr = refspec_nr + 1;
25 refspec = xrealloc(refspec, nr * sizeof(char *));
26 refspec[nr-1] = ref;
27 refspec_nr = nr;
28}
29
8da19775 30static int expand_one_ref(const char *ref, const unsigned char *sha1, int flag, void *cb_data)
755225de
LT
31{
32 /* Ignore the "refs/" at the beginning of the refname */
33 ref += 5;
34
9e0ec82c 35 if (!strncmp(ref, "tags/", 5))
9befac47 36 add_refspec(xstrdup(ref));
755225de
LT
37 return 0;
38}
39
40static void expand_refspecs(void)
41{
42 if (all) {
43 if (refspec_nr)
44 die("cannot mix '--all' and a refspec");
45
46 /*
47 * No need to expand "--all" - we'll just use
48 * the "--all" flag to send-pack
49 */
50 return;
51 }
52 if (!tags)
53 return;
cb5d709f 54 for_each_ref(expand_one_ref, NULL);
755225de
LT
55}
56
57static void set_refspecs(const char **refs, int nr)
58{
59 if (nr) {
411fb8ba
JH
60 int pass;
61 for (pass = 0; pass < 2; pass++) {
62 /* pass 0 counts and allocates, pass 1 fills */
63 int i, cnt;
64 for (i = cnt = 0; i < nr; i++) {
65 if (!strcmp("tag", refs[i])) {
66 int len;
67 char *tag;
68 if (nr <= ++i)
69 die("tag <tag> shorthand without <tag>");
70 if (pass) {
71 len = strlen(refs[i]) + 11;
72 tag = xmalloc(len);
73 strcpy(tag, "refs/tags/");
74 strcat(tag, refs[i]);
75 refspec[cnt] = tag;
76 }
77 cnt++;
78 continue;
79 }
80 if (pass)
81 refspec[cnt] = refs[i];
82 cnt++;
83 }
84 if (!pass) {
85 size_t bytes = cnt * sizeof(char *);
86 refspec_nr = cnt;
87 refspec = xrealloc(refspec, bytes);
88 }
89 }
755225de
LT
90 }
91 expand_refspecs();
92}
93
94static int get_remotes_uri(const char *repo, const char *uri[MAX_URI])
95{
96 int n = 0;
97 FILE *f = fopen(git_path("remotes/%s", repo), "r");
5edbcd8d 98 int has_explicit_refspec = refspec_nr || all || tags;
755225de
LT
99
100 if (!f)
101 return -1;
102 while (fgets(buffer, BUF_SIZE, f)) {
5c477b97 103 int is_refspec;
755225de
LT
104 char *s, *p;
105
6fe5b7ff 106 if (!strncmp("URL:", buffer, 4)) {
5c477b97 107 is_refspec = 0;
6fe5b7ff
JH
108 s = buffer + 4;
109 } else if (!strncmp("Push:", buffer, 5)) {
5c477b97 110 is_refspec = 1;
6fe5b7ff 111 s = buffer + 5;
5c477b97 112 } else
755225de 113 continue;
755225de
LT
114
115 /* Remove whitespace at the head.. */
116 while (isspace(*s))
117 s++;
118 if (!*s)
119 continue;
120
121 /* ..and at the end */
122 p = s + strlen(s);
123 while (isspace(p[-1]))
124 *--p = 0;
125
7aaf83da
JH
126 if (!is_refspec) {
127 if (n < MAX_URI)
9befac47 128 uri[n++] = xstrdup(s);
7aaf83da 129 else
82e5a82f 130 error("more than %d URL's specified, ignoring the rest", MAX_URI);
7aaf83da
JH
131 }
132 else if (is_refspec && !has_explicit_refspec)
9befac47 133 add_refspec(xstrdup(s));
755225de
LT
134 }
135 fclose(f);
136 if (!n)
137 die("remote '%s' has no URL", repo);
138 return n;
139}
140
97d4df0b
JS
141static const char **config_uri;
142static const char *config_repo;
143static int config_repo_len;
144static int config_current_uri;
145static int config_get_refspecs;
060aafc1 146static int config_get_receivepack;
97d4df0b
JS
147
148static int get_remote_config(const char* key, const char* value)
149{
150 if (!strncmp(key, "remote.", 7) &&
151 !strncmp(key + 7, config_repo, config_repo_len)) {
152 if (!strcmp(key + 7 + config_repo_len, ".url")) {
153 if (config_current_uri < MAX_URI)
9befac47 154 config_uri[config_current_uri++] = xstrdup(value);
97d4df0b
JS
155 else
156 error("more than %d URL's specified, ignoring the rest", MAX_URI);
157 }
158 else if (config_get_refspecs &&
159 !strcmp(key + 7 + config_repo_len, ".push"))
9befac47 160 add_refspec(xstrdup(value));
060aafc1
UKK
161 else if (config_get_receivepack &&
162 !strcmp(key + 7 + config_repo_len, ".receivepack")) {
163 if (!execute) {
164 char *ex = xmalloc(strlen(value) + 8);
165 sprintf(ex, "--exec=%s", value);
166 execute = ex;
167 } else
168 error("more than one receivepack given, using the first");
169 }
97d4df0b
JS
170 }
171 return 0;
172}
173
174static int get_config_remotes_uri(const char *repo, const char *uri[MAX_URI])
175{
176 config_repo_len = strlen(repo);
177 config_repo = repo;
178 config_current_uri = 0;
179 config_uri = uri;
5edbcd8d 180 config_get_refspecs = !(refspec_nr || all || tags);
060aafc1 181 config_get_receivepack = (execute == NULL);
97d4df0b
JS
182
183 git_config(get_remote_config);
184 return config_current_uri;
185}
186
755225de
LT
187static int get_branches_uri(const char *repo, const char *uri[MAX_URI])
188{
189 const char *slash = strchr(repo, '/');
190 int n = slash ? slash - repo : 1000;
191 FILE *f = fopen(git_path("branches/%.*s", n, repo), "r");
192 char *s, *p;
193 int len;
194
195 if (!f)
196 return 0;
197 s = fgets(buffer, BUF_SIZE, f);
198 fclose(f);
199 if (!s)
200 return 0;
201 while (isspace(*s))
202 s++;
203 if (!*s)
204 return 0;
205 p = s + strlen(s);
206 while (isspace(p[-1]))
207 *--p = 0;
208 len = p - s;
209 if (slash)
210 len += strlen(slash);
211 p = xmalloc(len + 1);
212 strcpy(p, s);
213 if (slash)
214 strcat(p, slash);
215 uri[0] = p;
216 return 1;
217}
218
7aaf83da
JH
219/*
220 * Read remotes and branches file, fill the push target URI
221 * list. If there is no command line refspecs, read Push: lines
222 * to set up the *refspec list as well.
223 * return the number of push target URIs
224 */
225static int read_config(const char *repo, const char *uri[MAX_URI])
755225de
LT
226{
227 int n;
228
229 if (*repo != '/') {
230 n = get_remotes_uri(repo, uri);
231 if (n > 0)
232 return n;
233
97d4df0b
JS
234 n = get_config_remotes_uri(repo, uri);
235 if (n > 0)
236 return n;
237
755225de
LT
238 n = get_branches_uri(repo, uri);
239 if (n > 0)
240 return n;
241 }
242
243 uri[0] = repo;
244 return 1;
245}
246
247static int do_push(const char *repo)
248{
249 const char *uri[MAX_URI];
7aaf83da 250 int i, n;
441c823e 251 int common_argc;
755225de
LT
252 const char **argv;
253 int argc;
254
7aaf83da 255 n = read_config(repo, uri);
755225de
LT
256 if (n <= 0)
257 die("bad repository '%s'", repo);
258
259 argv = xmalloc((refspec_nr + 10) * sizeof(char *));
260 argv[0] = "dummy-send-pack";
261 argc = 1;
262 if (all)
263 argv[argc++] = "--all";
264 if (force)
265 argv[argc++] = "--force";
266 if (execute)
267 argv[argc++] = execute;
441c823e 268 common_argc = argc;
755225de
LT
269
270 for (i = 0; i < n; i++) {
60b7f38e 271 int err;
441c823e
NH
272 int dest_argc = common_argc;
273 int dest_refspec_nr = refspec_nr;
274 const char **dest_refspec = refspec;
755225de
LT
275 const char *dest = uri[i];
276 const char *sender = "git-send-pack";
277 if (!strncmp(dest, "http://", 7) ||
278 !strncmp(dest, "https://", 8))
279 sender = "git-http-push";
441c823e
NH
280 else if (thin)
281 argv[dest_argc++] = "--thin";
755225de 282 argv[0] = sender;
441c823e
NH
283 argv[dest_argc++] = dest;
284 while (dest_refspec_nr--)
285 argv[dest_argc++] = *dest_refspec++;
286 argv[dest_argc] = NULL;
bcc785f6
LT
287 if (verbose)
288 fprintf(stderr, "Pushing to %s\n", dest);
9b0b5093 289 err = run_command_v(argv);
60b7f38e 290 if (!err)
755225de 291 continue;
60b7f38e 292 switch (err) {
755225de
LT
293 case -ERR_RUN_COMMAND_FORK:
294 die("unable to fork for %s", sender);
295 case -ERR_RUN_COMMAND_EXEC:
296 die("unable to exec %s", sender);
297 case -ERR_RUN_COMMAND_WAITPID:
298 case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
299 case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
300 case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
301 die("%s died with strange error", sender);
302 default:
60b7f38e 303 return -err;
755225de
LT
304 }
305 }
306 return 0;
307}
308
a633fca0 309int cmd_push(int argc, const char **argv, const char *prefix)
755225de
LT
310{
311 int i;
a9486b02 312 const char *repo = "origin"; /* default repository */
755225de
LT
313
314 for (i = 1; i < argc; i++) {
315 const char *arg = argv[i];
316
317 if (arg[0] != '-') {
318 repo = arg;
319 i++;
320 break;
321 }
bcc785f6
LT
322 if (!strcmp(arg, "-v")) {
323 verbose=1;
324 continue;
325 }
326 if (!strncmp(arg, "--repo=", 7)) {
327 repo = arg+7;
328 continue;
329 }
755225de
LT
330 if (!strcmp(arg, "--all")) {
331 all = 1;
332 continue;
333 }
334 if (!strcmp(arg, "--tags")) {
335 tags = 1;
336 continue;
337 }
8f615493 338 if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
755225de
LT
339 force = 1;
340 continue;
341 }
342 if (!strcmp(arg, "--thin")) {
343 thin = 1;
344 continue;
345 }
346 if (!strcmp(arg, "--no-thin")) {
347 thin = 0;
348 continue;
349 }
350 if (!strncmp(arg, "--exec=", 7)) {
351 execute = arg;
352 continue;
353 }
354 usage(push_usage);
355 }
356 set_refspecs(argv + i, argc - i);
357 return do_push(repo);
358}