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
  10 static const char push_usage[] = "git-push [--all] [--dry-run] [--tags] [--receive-pack=<git-receive-pack>] [--repo=all] [-f | --force] [-v] [<repository> <refspec>...]";
  11
  12 static int all, dry_run, force, thin, verbose;
  13 static const char *receivepack;
  14
  15 static const char **refspec;
  16 static int refspec_nr;
  17
  18 static void add_refspec(const char *ref)
  19 {
  20         int nr = refspec_nr + 1;
  21         refspec = xrealloc(refspec, nr * sizeof(char *));
  22         refspec[nr-1] = ref;
  23         refspec_nr = nr;
  24 }
  25
  26 static void set_refspecs(const char **refs, int nr)
  27 {
  28         int i;
  29         for (i = 0; i < nr; i++) {
  30                 const char *ref = refs[i];
  31                 if (!strcmp("tag", ref)) {
  32                         char *tag;
  33                         int len;
  34                         if (nr <= ++i)
  35                                 die("tag shorthand without <tag>");
  36                         len = strlen(refs[i]) + 11;
  37                         tag = xmalloc(len);
  38                         strcpy(tag, "refs/tags/");
  39                         strcat(tag, refs[i]);
  40                         ref = tag;
  41                 }
  42                 add_refspec(ref);
  43         }
  44 }
  45
  46 static int do_push(const char *repo)
  47 {
  48         int i, errs;
  49         int common_argc;
  50         const char **argv;
  51         int argc;
  52         struct remote *remote = remote_get(repo);
  53
  54         if (!remote)
  55                 die("bad repository '%s'", repo);
  56
  57         if (remote->receivepack) {
  58                 char *rp = xmalloc(strlen(remote->receivepack) + 16);
  59                 sprintf(rp, "--receive-pack=%s", remote->receivepack);
  60                 receivepack = rp;
  61         }
  62         if (!refspec && !all && remote->push_refspec_nr) {
  63                 refspec = remote->push_refspec;
  64                 refspec_nr = remote->push_refspec_nr;
  65         }
  66
  67         argv = xmalloc((refspec_nr + 10) * sizeof(char *));
  68         argv[0] = "dummy-send-pack";
  69         argc = 1;
  70         if (all)
  71                 argv[argc++] = "--all";
  72         if (dry_run)
  73                 argv[argc++] = "--dry-run";
  74         if (force)
  75                 argv[argc++] = "--force";
  76         if (receivepack)
  77                 argv[argc++] = receivepack;
  78         common_argc = argc;
  79
  80         errs = 0;
  81         for (i = 0; i < remote->uri_nr; i++) {
  82                 int err;
  83                 int dest_argc = common_argc;
  84                 int dest_refspec_nr = refspec_nr;
  85                 const char **dest_refspec = refspec;
  86                 const char *dest = remote->uri[i];
  87                 const char *sender = "send-pack";
  88                 if (!prefixcmp(dest, "http://") ||
  89                     !prefixcmp(dest, "https://"))
  90                         sender = "http-push";
  91                 else {
  92                         char *rem = xmalloc(strlen(remote->name) + 10);
  93                         sprintf(rem, "--remote=%s", remote->name);
  94                         argv[dest_argc++] = rem;
  95                         if (thin)
  96                                 argv[dest_argc++] = "--thin";
  97                 }
  98                 argv[0] = sender;
  99                 argv[dest_argc++] = dest;
 100                 while (dest_refspec_nr--)
 101                         argv[dest_argc++] = *dest_refspec++;
 102                 argv[dest_argc] = NULL;
 103                 if (verbose)
 104                         fprintf(stderr, "Pushing to %s\n", dest);
 105                 err = run_command_v_opt(argv, RUN_GIT_CMD);
 106                 if (!err)
 107                         continue;
 108
 109                 error("failed to push to '%s'", remote->uri[i]);
 110                 switch (err) {
 111                 case -ERR_RUN_COMMAND_FORK:
 112                         error("unable to fork for %s", sender);
 113                 case -ERR_RUN_COMMAND_EXEC:
 114                         error("unable to exec %s", sender);
 115                         break;
 116                 case -ERR_RUN_COMMAND_WAITPID:
 117                 case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
 118                 case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
 119                 case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
 120                         error("%s died with strange error", sender);
 121                 }
 122                 errs++;
 123         }
 124         return !!errs;
 125 }
 126
 127 int cmd_push(int argc, const char **argv, const char *prefix)
 128 {
 129         int i;
 130         const char *repo = NULL;        /* default repository */
 131
 132         for (i = 1; i < argc; i++) {
 133                 const char *arg = argv[i];
 134
 135                 if (arg[0] != '-') {
 136                         repo = arg;
 137                         i++;
 138                         break;
 139                 }
 140                 if (!strcmp(arg, "-v")) {
 141                         verbose=1;
 142                         continue;
 143                 }
 144                 if (!prefixcmp(arg, "--repo=")) {
 145                         repo = arg+7;
 146                         continue;
 147                 }
 148                 if (!strcmp(arg, "--all")) {
 149                         all = 1;
 150                         continue;
 151                 }
 152                 if (!strcmp(arg, "--dry-run")) {
 153                         dry_run = 1;
 154                         continue;
 155                 }
 156                 if (!strcmp(arg, "--tags")) {
 157                         add_refspec("refs/tags/*");
 158                         continue;
 159                 }
 160                 if (!strcmp(arg, "--force") || !strcmp(arg, "-f")) {
 161                         force = 1;
 162                         continue;
 163                 }
 164                 if (!strcmp(arg, "--thin")) {
 165                         thin = 1;
 166                         continue;
 167                 }
 168                 if (!strcmp(arg, "--no-thin")) {
 169                         thin = 0;
 170                         continue;
 171                 }
 172                 if (!prefixcmp(arg, "--receive-pack=")) {
 173                         receivepack = arg;
 174                         continue;
 175                 }
 176                 if (!prefixcmp(arg, "--exec=")) {
 177                         receivepack = arg;
 178                         continue;
 179                 }
 180                 usage(push_usage);
 181         }
 182         set_refspecs(argv + i, argc - i);
 183         if (all && refspec)
 184                 usage(push_usage);
 185
 186         return do_push(repo);
 187 }