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builtin-push.c
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/* * "git push" */ #include "cache.h" #include "refs.h" #include "run-command.h" #include "builtin.h" #include "remote.h" #include "transport.h" #include "parse-options.h" static const char * const push_usage[] = { "git push [--all | --mirror] [--dry-run] [--porcelain] [--tags] [--receive-pack=<git-receive-pack>] [--repo=<repository>] [-f | --force] [-v] [<repository> <refspec>...]", NULL, }; static int thin; static const char *receivepack; static const char **refspec; static int refspec_nr; static void add_refspec(const char *ref) { int nr = refspec_nr + 1; refspec = xrealloc(refspec, nr * sizeof(char *)); refspec[nr-1] = ref; refspec_nr = nr; } static void set_refspecs(const char **refs, int nr) { int i; for (i = 0; i < nr; i++) { const char *ref = refs[i]; if (!strcmp("tag", ref)) { char *tag; int len; if (nr <= ++i) die("tag shorthand without <tag>"); len = strlen(refs[i]) + 11; tag = xmalloc(len); strcpy(tag, "refs/tags/"); strcat(tag, refs[i]); ref = tag; } add_refspec(ref); } } static void setup_push_tracking(void) { struct strbuf refspec = STRBUF_INIT; struct branch *branch = branch_get(NULL); if (!branch) die("You are not currently on a branch."); if (!branch->merge_nr) die("The current branch %s is not tracking anything.", branch->name); if (branch->merge_nr != 1) die("The current branch %s is tracking multiple branches, " "refusing to push.", branch->name); strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src); add_refspec(refspec.buf); } static void setup_default_push_refspecs(void) { git_config(git_default_config, NULL); switch (push_default) { default: case PUSH_DEFAULT_MATCHING: add_refspec(":"); break; case PUSH_DEFAULT_TRACKING: setup_push_tracking(); break; case PUSH_DEFAULT_CURRENT: add_refspec("HEAD"); break; case PUSH_DEFAULT_NOTHING: die("You didn't specify any refspecs to push, and " "push.default is \"nothing\"."); break; } } static int do_push(const char *repo, int flags) { int i, errs; struct remote *remote = remote_get(repo); const char **url; int url_nr; if (!remote) { if (repo) die("bad repository '%s'", repo); die("No destination configured to push to."); } if (remote->mirror) flags |= (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE); if ((flags & TRANSPORT_PUSH_ALL) && refspec) { if (!strcmp(*refspec, "refs/tags/*")) return error("--all and --tags are incompatible"); return error("--all can't be combined with refspecs"); } if ((flags & TRANSPORT_PUSH_MIRROR) && refspec) { if (!strcmp(*refspec, "refs/tags/*")) return error("--mirror and --tags are incompatible"); return error("--mirror can't be combined with refspecs"); } if ((flags & (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) == (TRANSPORT_PUSH_ALL|TRANSPORT_PUSH_MIRROR)) { return error("--all and --mirror are incompatible"); } if (!refspec && !(flags & TRANSPORT_PUSH_ALL)) { if (remote->push_refspec_nr) { refspec = remote->push_refspec; refspec_nr = remote->push_refspec_nr; } else if (!(flags & TRANSPORT_PUSH_MIRROR)) setup_default_push_refspecs(); } errs = 0; if (remote->pushurl_nr) { url = remote->pushurl; url_nr = remote->pushurl_nr; } else { url = remote->url; url_nr = remote->url_nr; } for (i = 0; i < url_nr; i++) { struct transport *transport = transport_get(remote, url[i]); int err; int nonfastforward; if (receivepack) transport_set_option(transport, TRANS_OPT_RECEIVEPACK, receivepack); if (thin) transport_set_option(transport, TRANS_OPT_THIN, "yes"); if (flags & TRANSPORT_PUSH_VERBOSE) fprintf(stderr, "Pushing to %s\n", url[i]); err = transport_push(transport, refspec_nr, refspec, flags, &nonfastforward); err |= transport_disconnect(transport); if (!err) continue; error("failed to push some refs to '%s'", url[i]); if (nonfastforward && advice_push_nonfastforward) { printf("To prevent you from losing history, non-fast-forward updates were rejected\n" "Merge the remote changes before pushing again. See the 'non-fast forward'\n" "section of 'git push --help' for details.\n"); } errs++; } return !!errs; } int cmd_push(int argc, const char **argv, const char *prefix) { int flags = 0; int tags = 0; int rc; const char *repo = NULL; /* default repository */ struct option options[] = { OPT_BIT('q', "quiet", &flags, "be quiet", TRANSPORT_PUSH_QUIET), OPT_BIT('v', "verbose", &flags, "be verbose", TRANSPORT_PUSH_VERBOSE), OPT_STRING( 0 , "repo", &repo, "repository", "repository"), OPT_BIT( 0 , "all", &flags, "push all refs", TRANSPORT_PUSH_ALL), OPT_BIT( 0 , "mirror", &flags, "mirror all refs", (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)), OPT_BOOLEAN( 0 , "tags", &tags, "push tags"), OPT_BIT( 0 , "dry-run", &flags, "dry run", TRANSPORT_PUSH_DRY_RUN), OPT_BIT( 0, "porcelain", &flags, "machine-readable output", TRANSPORT_PUSH_PORCELAIN), OPT_BIT('f', "force", &flags, "force updates", TRANSPORT_PUSH_FORCE), OPT_BOOLEAN( 0 , "thin", &thin, "use thin pack"), OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", "receive pack program"), OPT_STRING( 0 , "exec", &receivepack, "receive-pack", "receive pack program"), OPT_END() }; argc = parse_options(argc, argv, prefix, options, push_usage, 0); if (tags) add_refspec("refs/tags/*"); if (argc > 0) { repo = argv[0]; set_refspecs(argv + 1, argc - 1); } rc = do_push(repo, flags); if (rc == -1) usage_with_options(push_usage, options); else return rc; }
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