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-rw-r--r--builtin/push.c467
1 files changed, 467 insertions, 0 deletions
diff --git a/builtin/push.c b/builtin/push.c
new file mode 100644
index 0000000000..909c34dfda
--- /dev/null
+++ b/builtin/push.c
@@ -0,0 +1,467 @@
+/*
+ * "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"
+#include "submodule.h"
+
+static const char * const push_usage[] = {
+ N_("git push [<options>] [<repository> [<refspec>...]]"),
+ NULL,
+};
+
+static int thin;
+static int deleterefs;
+static const char *receivepack;
+static int verbosity;
+static int progress = -1;
+
+static const char **refspec;
+static int refspec_nr;
+static int refspec_alloc;
+static int default_matching_used;
+
+static void add_refspec(const char *ref)
+{
+ refspec_nr++;
+ ALLOC_GROW(refspec, refspec_nr, refspec_alloc);
+ refspec[refspec_nr-1] = ref;
+}
+
+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;
+ if (deleterefs) {
+ tag = xmalloc(len+1);
+ strcpy(tag, ":refs/tags/");
+ } else {
+ tag = xmalloc(len);
+ strcpy(tag, "refs/tags/");
+ }
+ strcat(tag, refs[i]);
+ ref = tag;
+ } else if (deleterefs && !strchr(ref, ':')) {
+ char *delref;
+ int len = strlen(ref)+1;
+ delref = xmalloc(len+1);
+ strcpy(delref, ":");
+ strcat(delref, ref);
+ ref = delref;
+ } else if (deleterefs)
+ die(_("--delete only accepts plain target ref names"));
+ add_refspec(ref);
+ }
+}
+
+static int push_url_of_remote(struct remote *remote, const char ***url_p)
+{
+ if (remote->pushurl_nr) {
+ *url_p = remote->pushurl;
+ return remote->pushurl_nr;
+ }
+ *url_p = remote->url;
+ return remote->url_nr;
+}
+
+static NORETURN int die_push_simple(struct branch *branch, struct remote *remote) {
+ /*
+ * There's no point in using shorten_unambiguous_ref here,
+ * as the ambiguity would be on the remote side, not what
+ * we have locally. Plus, this is supposed to be the simple
+ * mode. If the user is doing something crazy like setting
+ * upstream to a non-branch, we should probably be showing
+ * them the big ugly fully qualified ref.
+ */
+ const char *advice_maybe = "";
+ const char *short_upstream =
+ skip_prefix(branch->merge[0]->src, "refs/heads/");
+
+ if (!short_upstream)
+ short_upstream = branch->merge[0]->src;
+ /*
+ * Don't show advice for people who explicitely set
+ * push.default.
+ */
+ if (push_default == PUSH_DEFAULT_UNSPECIFIED)
+ advice_maybe = _("\n"
+ "To choose either option permanently, "
+ "see push.default in 'git help config'.");
+ die(_("The upstream branch of your current branch does not match\n"
+ "the name of your current branch. To push to the upstream branch\n"
+ "on the remote, use\n"
+ "\n"
+ " git push %s HEAD:%s\n"
+ "\n"
+ "To push to the branch of the same name on the remote, use\n"
+ "\n"
+ " git push %s %s\n"
+ "%s"),
+ remote->name, short_upstream,
+ remote->name, branch->name, advice_maybe);
+}
+
+static void setup_push_upstream(struct remote *remote, int simple)
+{
+ struct strbuf refspec = STRBUF_INIT;
+ struct branch *branch = branch_get(NULL);
+ if (!branch)
+ die(_("You are not currently on a branch.\n"
+ "To push the history leading to the current (detached HEAD)\n"
+ "state now, use\n"
+ "\n"
+ " git push %s HEAD:<name-of-remote-branch>\n"),
+ remote->name);
+ if (!branch->merge_nr || !branch->merge || !branch->remote_name)
+ die(_("The current branch %s has no upstream branch.\n"
+ "To push the current branch and set the remote as upstream, use\n"
+ "\n"
+ " git push --set-upstream %s %s\n"),
+ branch->name,
+ remote->name,
+ branch->name);
+ if (branch->merge_nr != 1)
+ die(_("The current branch %s has multiple upstream branches, "
+ "refusing to push."), branch->name);
+ if (strcmp(branch->remote_name, remote->name))
+ die(_("You are pushing to remote '%s', which is not the upstream of\n"
+ "your current branch '%s', without telling me what to push\n"
+ "to update which remote branch."),
+ remote->name, branch->name);
+ if (simple && strcmp(branch->refname, branch->merge[0]->src))
+ die_push_simple(branch, remote);
+
+ strbuf_addf(&refspec, "%s:%s", branch->name, branch->merge[0]->src);
+ add_refspec(refspec.buf);
+}
+
+static char warn_unspecified_push_default_msg[] =
+N_("push.default is unset; its implicit value is changing in\n"
+ "Git 2.0 from 'matching' to 'simple'. To squelch this message\n"
+ "and maintain the current behavior after the default changes, use:\n"
+ "\n"
+ " git config --global push.default matching\n"
+ "\n"
+ "To squelch this message and adopt the new behavior now, use:\n"
+ "\n"
+ " git config --global push.default simple\n"
+ "\n"
+ "See 'git help config' and search for 'push.default' for further information.\n"
+ "(the 'simple' mode was introduced in Git 1.7.11. Use the similar mode\n"
+ "'current' instead of 'simple' if you sometimes use older versions of Git)");
+
+static void warn_unspecified_push_default_configuration(void)
+{
+ static int warn_once;
+
+ if (warn_once++)
+ return;
+ warning("%s\n", _(warn_unspecified_push_default_msg));
+}
+
+static void setup_default_push_refspecs(struct remote *remote)
+{
+ switch (push_default) {
+ default:
+ case PUSH_DEFAULT_UNSPECIFIED:
+ default_matching_used = 1;
+ warn_unspecified_push_default_configuration();
+ /* fallthru */
+ case PUSH_DEFAULT_MATCHING:
+ add_refspec(":");
+ break;
+
+ case PUSH_DEFAULT_SIMPLE:
+ setup_push_upstream(remote, 1);
+ break;
+
+ case PUSH_DEFAULT_UPSTREAM:
+ setup_push_upstream(remote, 0);
+ 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 const char message_advice_pull_before_push[] =
+ N_("Updates were rejected because the tip of your current branch is behind\n"
+ "its remote counterpart. Merge the remote changes (e.g. 'git pull')\n"
+ "before pushing again.\n"
+ "See the 'Note about fast-forwards' in 'git push --help' for details.");
+
+static const char message_advice_use_upstream[] =
+ N_("Updates were rejected because a pushed branch tip is behind its remote\n"
+ "counterpart. If you did not intend to push that branch, you may want to\n"
+ "specify branches to push or set the 'push.default' configuration variable\n"
+ "to 'simple', 'current' or 'upstream' to push only the current branch.");
+
+static const char message_advice_checkout_pull_push[] =
+ N_("Updates were rejected because a pushed branch tip is behind its remote\n"
+ "counterpart. Check out this branch and merge the remote changes\n"
+ "(e.g. 'git pull') before pushing again.\n"
+ "See the 'Note about fast-forwards' in 'git push --help' for details.");
+
+static const char message_advice_ref_fetch_first[] =
+ N_("Updates were rejected because the remote contains work that you do\n"
+ "not have locally. This is usually caused by another repository pushing\n"
+ "to the same ref. You may want to first merge the remote changes (e.g.,\n"
+ "'git pull') before pushing again.\n"
+ "See the 'Note about fast-forwards' in 'git push --help' for details.");
+
+static const char message_advice_ref_already_exists[] =
+ N_("Updates were rejected because the tag already exists in the remote.");
+
+static const char message_advice_ref_needs_force[] =
+ N_("You cannot update a remote ref that points at a non-commit object,\n"
+ "or update a remote ref to make it point at a non-commit object,\n"
+ "without using the '--force' option.\n");
+
+static void advise_pull_before_push(void)
+{
+ if (!advice_push_non_ff_current || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_pull_before_push));
+}
+
+static void advise_use_upstream(void)
+{
+ if (!advice_push_non_ff_default || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_use_upstream));
+}
+
+static void advise_checkout_pull_push(void)
+{
+ if (!advice_push_non_ff_matching || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_checkout_pull_push));
+}
+
+static void advise_ref_already_exists(void)
+{
+ if (!advice_push_already_exists || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_ref_already_exists));
+}
+
+static void advise_ref_fetch_first(void)
+{
+ if (!advice_push_fetch_first || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_ref_fetch_first));
+}
+
+static void advise_ref_needs_force(void)
+{
+ if (!advice_push_needs_force || !advice_push_update_rejected)
+ return;
+ advise(_(message_advice_ref_needs_force));
+}
+
+static int push_with_options(struct transport *transport, int flags)
+{
+ int err;
+ unsigned int reject_reasons;
+
+ transport_set_verbosity(transport, verbosity, progress);
+
+ if (receivepack)
+ transport_set_option(transport,
+ TRANS_OPT_RECEIVEPACK, receivepack);
+ if (thin)
+ transport_set_option(transport, TRANS_OPT_THIN, "yes");
+
+ if (verbosity > 0)
+ fprintf(stderr, _("Pushing to %s\n"), transport->url);
+ err = transport_push(transport, refspec_nr, refspec, flags,
+ &reject_reasons);
+ if (err != 0)
+ error(_("failed to push some refs to '%s'"), transport->url);
+
+ err |= transport_disconnect(transport);
+ if (!err)
+ return 0;
+
+ if (reject_reasons & REJECT_NON_FF_HEAD) {
+ advise_pull_before_push();
+ } else if (reject_reasons & REJECT_NON_FF_OTHER) {
+ if (default_matching_used)
+ advise_use_upstream();
+ else
+ advise_checkout_pull_push();
+ } else if (reject_reasons & REJECT_ALREADY_EXISTS) {
+ advise_ref_already_exists();
+ } else if (reject_reasons & REJECT_FETCH_FIRST) {
+ advise_ref_fetch_first();
+ } else if (reject_reasons & REJECT_NEEDS_FORCE) {
+ advise_ref_needs_force();
+ }
+
+ return 1;
+}
+
+static int do_push(const char *repo, int flags)
+{
+ int i, errs;
+ struct remote *remote = pushremote_get(repo);
+ const char **url;
+ int url_nr;
+
+ if (!remote) {
+ if (repo)
+ die(_("bad repository '%s'"), repo);
+ die(_("No configured push destination.\n"
+ "Either specify the URL from the command-line or configure a remote repository using\n"
+ "\n"
+ " git remote add <name> <url>\n"
+ "\n"
+ "and then push using the remote name\n"
+ "\n"
+ " git push <name>\n"));
+ }
+
+ 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(remote);
+ }
+ errs = 0;
+ url_nr = push_url_of_remote(remote, &url);
+ if (url_nr) {
+ for (i = 0; i < url_nr; i++) {
+ struct transport *transport =
+ transport_get(remote, url[i]);
+ if (push_with_options(transport, flags))
+ errs++;
+ }
+ } else {
+ struct transport *transport =
+ transport_get(remote, NULL);
+
+ if (push_with_options(transport, flags))
+ errs++;
+ }
+ return !!errs;
+}
+
+static int option_parse_recurse_submodules(const struct option *opt,
+ const char *arg, int unset)
+{
+ int *flags = opt->value;
+
+ if (*flags & (TRANSPORT_RECURSE_SUBMODULES_CHECK |
+ TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND))
+ die("%s can only be used once.", opt->long_name);
+
+ if (arg) {
+ if (!strcmp(arg, "check"))
+ *flags |= TRANSPORT_RECURSE_SUBMODULES_CHECK;
+ else if (!strcmp(arg, "on-demand"))
+ *flags |= TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND;
+ else
+ die("bad %s argument: %s", opt->long_name, arg);
+ } else
+ die("option %s needs an argument (check|on-demand)",
+ opt->long_name);
+
+ return 0;
+}
+
+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__VERBOSITY(&verbosity),
+ OPT_STRING( 0 , "repo", &repo, N_("repository"), N_("repository")),
+ OPT_BIT( 0 , "all", &flags, N_("push all refs"), TRANSPORT_PUSH_ALL),
+ OPT_BIT( 0 , "mirror", &flags, N_("mirror all refs"),
+ (TRANSPORT_PUSH_MIRROR|TRANSPORT_PUSH_FORCE)),
+ OPT_BOOLEAN( 0, "delete", &deleterefs, N_("delete refs")),
+ OPT_BOOLEAN( 0 , "tags", &tags, N_("push tags (can't be used with --all or --mirror)")),
+ OPT_BIT('n' , "dry-run", &flags, N_("dry run"), TRANSPORT_PUSH_DRY_RUN),
+ OPT_BIT( 0, "porcelain", &flags, N_("machine-readable output"), TRANSPORT_PUSH_PORCELAIN),
+ OPT_BIT('f', "force", &flags, N_("force updates"), TRANSPORT_PUSH_FORCE),
+ { OPTION_CALLBACK, 0, "recurse-submodules", &flags, N_("check"),
+ N_("control recursive pushing of submodules"),
+ PARSE_OPT_OPTARG, option_parse_recurse_submodules },
+ OPT_BOOLEAN( 0 , "thin", &thin, N_("use thin pack")),
+ OPT_STRING( 0 , "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
+ OPT_STRING( 0 , "exec", &receivepack, "receive-pack", N_("receive pack program")),
+ OPT_BIT('u', "set-upstream", &flags, N_("set upstream for git pull/status"),
+ TRANSPORT_PUSH_SET_UPSTREAM),
+ OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
+ OPT_BIT(0, "prune", &flags, N_("prune locally removed refs"),
+ TRANSPORT_PUSH_PRUNE),
+ OPT_BIT(0, "no-verify", &flags, N_("bypass pre-push hook"), TRANSPORT_PUSH_NO_HOOK),
+ OPT_BIT(0, "follow-tags", &flags, N_("push missing but relevant tags"),
+ TRANSPORT_PUSH_FOLLOW_TAGS),
+ OPT_END()
+ };
+
+ packet_trace_identity("push");
+ git_config(git_default_config, NULL);
+ argc = parse_options(argc, argv, prefix, options, push_usage, 0);
+
+ if (deleterefs && (tags || (flags & (TRANSPORT_PUSH_ALL | TRANSPORT_PUSH_MIRROR))))
+ die(_("--delete is incompatible with --all, --mirror and --tags"));
+ if (deleterefs && argc < 2)
+ die(_("--delete doesn't make sense without any refs"));
+
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 22:46:47 +0000