builtin-push.c

   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"
  11
  12 static const char * const push_usage[] = {
  13         "git-push [--all | --mirror] [--dry-run] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]",
  14         NULL,
  15 };
  16
  17 static int thin, verbose;
  18 static const char *receivepack;
  19
  20 static const char **refspec;
  21 static int refspec_nr;
  22
  23 static void add_refspec(const char *ref)
  24 {
  25         int nr = refspec_nr + 1;
  26         refspec = xrealloc(refspec, nr * sizeof(char *));
  27         refspec[nr-1] = ref;
  28         refspec_nr = nr;
  29 }
  30
  31 static void set_refspecs(const char **refs, int nr)
  32 {
  33         int i;
  34         for (i = 0; i < nr; i++) {
  35                 const char *ref = refs[i];
  36                 if (!strcmp("tag", ref)) {
  37                         char *tag;
  38                         int len;
  39                         if (nr <= ++i)
  40                                 die("tag shorthand without <tag>");
  41                         len = strlen(refs[i]) + 11;
  42                         tag = xmalloc(len);
  43                         strcpy(tag, "refs/tags/");
  44                         strcat(tag, refs[i]);
  45                         ref = tag;
  46                 }
  47                 if (!strcmp("HEAD", ref)) {
  48                         unsigned char sha1_dummy[20];
  49                         ref = resolve_ref(ref, sha1_dummy, 1, NULL);
  50                         if (!ref)
  51                                 die("HEAD cannot be resolved.");
  52                         if (prefixcmp(ref, "refs/heads/"))
  53                                 die("HEAD cannot be resolved to branch.");
  54                         ref = xstrdup(ref + 11);
  55                 }
  56                 add_refspec(ref);
  57         }
  58 }
  59
  60 static int do_push(const char *repo, int flags)
  61 {
  62         int i, errs;
  63         struct remote *remote = remote_get(repo);
  64
  65         if (!remote)
  66                 die("bad repository '%s'", repo);
  67
  68         if (!refspec
  69                 && !(flags & TRANSPORT_PUSH_ALL)
  70                 && remote->push_refspec_nr) {
  71                 refspec = remote->push_refspec;
  72                 refspec_nr = remote->push_refspec_nr;
  73         }
  74         errs = 0;
  75         for (i = 0; i < remote->url_nr; i++) {
  76                 struct transport *transport =
  77                         transport_get(remote, remote->url[i]);
  78                 int err;
  79                 if (receivepack)
  80                         transport_set_option(transport,
  81                                              TRANS_OPT_RECEIVEPACK, receivepack);
  82                 if (thin)
  83                         transport_set_option(transport, TRANS_OPT_THIN, "yes");
  84
  85                 if (verbose)
  86                         fprintf(stderr, "Pushing to %s\n", remote->url[i]);
  87                 err = transport_push(transport, refspec_nr, refspec, flags);
  88                 err |= transport_disconnect(transport);
  89
  90                 if (!err)
  91                         continue;
  92
  93                 error("failed to push some refs to '%s'", remote->url[i]);
  94                 errs++;
  95         }
  96         return !!errs;
  97 }
  98
  99 int cmd_push(int argc, const char **argv, const char *prefix)
 100 {
 101         int flags = 0;
 102         int all = 0;
 103         int mirror = 0;
 104         int dry_run = 0;
 105         int force = 0;
 106         int tags = 0;
 107         const char *repo = NULL;        /* default repository */
 108
 109         struct option options[] = {
 110                 OPT__VERBOSE(&verbose),
 111                 OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
 112                 OPT_BOOLEAN( 0 , "all", &all, "push all refs"),
 113                 OPT_BOOLEAN( 0 , "mirror", &mirror, "mirror all refs"),
 114                 OPT_BOOLEAN( 0 , "tags", &tags, "push tags"),
 115                 OPT_BOOLEAN( 0 , "dry-run", &dry_run, "dry run"),
 116                 OPT_BOOLEAN('f', "force", &force, "force updates"),
 117                 OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"),
 118                 OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"),
 119                 OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"),
 120                 OPT_END()
 121         };
 122
 123         argc = parse_options(argc, argv, options, push_usage, 0);
 124
 125         if (force)
 126                 flags |= TRANSPORT_PUSH_FORCE;
 127         if (dry_run)
 128                 flags |= TRANSPORT_PUSH_DRY_RUN;
 129         if (verbose)
 130                 flags |= TRANSPORT_PUSH_VERBOSE;
 131         if (tags)
 132                 add_refspec("refs/tags/*");
 133         if (all)
 134                 flags |= TRANSPORT_PUSH_ALL;
 135         if (mirror)
 136                 flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
 137
 138         if (argc > 0) {
 139                 repo = argv[0];
 140                 set_refspecs(argv + 1, argc - 1);
 141         }
 142         if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) && refspec)
 143                 usage_with_options(push_usage, options);
 144
 145         if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
 146                                 (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
 147                 error("--all and --mirror are incompatible");
 148                 usage_with_options(push_usage, options);
 149         }
 150
 151         return do_push(repo, flags);
 152 }