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;
  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                 add_refspec(ref);
  48         }
  49 }
  50
  51 static int do_push(const char *repo, int flags)
  52 {
  53         int i, errs;
  54         struct remote *remote = remote_get(repo);
  55
  56         if (!remote)
  57                 die("bad repository '%s'", repo);
  58
  59         if (remote->mirror)
  60                 flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE);
  61
  62         if ((flags & TRANSPORT_PUSH_ALL) && refspec) {
  63                 if (!strcmp(*refspec, "refs/tags/*"))
  64                         return error("--all and --tags are incompatible");
  65                 return error("--all can't be combined with refspecs");
  66         }
  67
  68         if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) {
  69                 if (!strcmp(*refspec, "refs/tags/*"))
  70                         return error("--mirror and --tags are incompatible");
  71                 return error("--mirror can't be combined with refspecs");
  72         }
  73
  74         if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) ==
  75                                 (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) {
  76                 return error("--all and --mirror are incompatible");
  77         }
  78
  79         if (!refspec
  80                 && !(flags & TRANSPORT_PUSH_ALL)
  81                 && remote->push_refspec_nr) {
  82                 refspec = remote->push_refspec;
  83                 refspec_nr = remote->push_refspec_nr;
  84         }
  85         errs = 0;
  86         for (i = 0; i < remote->url_nr; i++) {
  87                 struct transport *transport =
  88                         transport_get(remote, remote->url[i]);
  89                 int err;
  90                 if (receivepack)
  91                         transport_set_option(transport,
  92                                              TRANS_OPT_RECEIVEPACK, receivepack);
  93                 if (thin)
  94                         transport_set_option(transport, TRANS_OPT_THIN, "yes");
  95
  96                 if (flags & TRANSPORT_PUSH_VERBOSE)
  97                         fprintf(stderr, "Pushing to %s\n", remote->url[i]);
  98                 err = transport_push(transport, refspec_nr, refspec, flags);
  99                 err |= transport_disconnect(transport);
 100
 101                 if (!err)
 102                         continue;
 103
 104                 error("failed to push some refs to '%s'", remote->url[i]);
 105                 errs++;
 106         }
 107         return !!errs;
 108 }
 109
 110 int cmd_push(int argc, const char **argv, const char *prefix)
 111 {
 112         int flags = 0;
 113         int tags = 0;
 114         int rc;
 115         const char *repo = NULL;        /* default repository */
 116
 117         struct option options[] = {
 118                 OPT_BIT('v', "verbose", &flags, "be verbose", TRANSPORT_PUSH_VERBOSE),
 119                 OPT_STRING( 0 , "repo", &repo, "repository", "repository"),
 120                 OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL),
 121                 OPT_BIT( 0 , "mirror", &flags, "mirror all refs",
 122                             (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
 123                 OPT_BOOLEAN( 0 , "tags", &tags, "push tags"),
 124                 OPT_BIT( 0 , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN),
 125                 OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE),
 126                 OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"),
 127                 OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"),
 128                 OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"),
 129                 OPT_END()
 130         };
 131
 132         argc = parse_options(argc, argv, options, push_usage, 0);
 133
 134         if (tags)
 135                 add_refspec("refs/tags/*");
 136
 137         if (argc > 0) {
 138                 repo = argv[0];
 139                 set_refspecs(argv + 1, argc - 1);
 140         }
 141
 142         rc = do_push(repo, flags);
 143         if (rc == -1)
 144                 usage_with_options(push_usage, options);
 145         else
 146                 return rc;
 147 }