Merge branch 'tb/doc-fetch-pack-url'
[gitweb.git] / builtin / push.c
index 2d84d10720fad88becdfe957f3770a2c44ac0a8f..7b1b66c36ac14cb29db9dbbbd5b6f4d27b67d91c 100644 (file)
@@ -15,12 +15,14 @@ static const char * const push_usage[] = {
        NULL,
 };
 
-static int thin;
+static int thin = 1;
 static int deleterefs;
 static const char *receivepack;
 static int verbosity;
 static int progress = -1;
 
+static struct push_cas_option cas;
+
 static const char **refspec;
 static int refspec_nr;
 static int refspec_alloc;
@@ -92,7 +94,7 @@ static NORETURN int die_push_simple(struct branch *branch, struct remote *remote
        if (!short_upstream)
                short_upstream = branch->merge[0]->src;
        /*
-        * Don't show advice for people who explicitely set
+        * Don't show advice for people who explicitly set
         * push.default.
         */
        if (push_default == PUSH_DEFAULT_UNSPECIFIED)
@@ -120,10 +122,11 @@ static const char message_detached_head_die[] =
           "\n"
           "    git push %s HEAD:<name-of-remote-branch>\n");
 
-static void setup_push_upstream(struct remote *remote, int simple)
+static void setup_push_upstream(struct remote *remote, struct branch *branch,
+                               int triangular)
 {
        struct strbuf refspec = STRBUF_INIT;
-       struct branch *branch = branch_get(NULL);
+
        if (!branch)
                die(_(message_detached_head_die), remote->name);
        if (!branch->merge_nr || !branch->merge || !branch->remote_name)
@@ -137,18 +140,29 @@ static void setup_push_upstream(struct remote *remote, int simple)
        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))
+       if (triangular)
                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);
+
+       if (push_default == PUSH_DEFAULT_SIMPLE) {
+               /* Additional safety */
+               if (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 void setup_push_current(struct remote *remote, struct branch *branch)
+{
+       if (!branch)
+               die(_(message_detached_head_die), remote->name);
+       add_refspec(branch->name);
+}
+
 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"
@@ -173,9 +187,16 @@ static void warn_unspecified_push_default_configuration(void)
        warning("%s\n", _(warn_unspecified_push_default_msg));
 }
 
+static int is_workflow_triangular(struct remote *remote)
+{
+       struct remote *fetch_remote = remote_get(NULL);
+       return (fetch_remote && fetch_remote != remote);
+}
+
 static void setup_default_push_refspecs(struct remote *remote)
 {
-       struct branch *branch;
+       struct branch *branch = branch_get(NULL);
+       int triangular = is_workflow_triangular(remote);
 
        switch (push_default) {
        default:
@@ -188,18 +209,18 @@ static void setup_default_push_refspecs(struct remote *remote)
                break;
 
        case PUSH_DEFAULT_SIMPLE:
-               setup_push_upstream(remote, 1);
+               if (triangular)
+                       setup_push_current(remote, branch);
+               else
+                       setup_push_upstream(remote, branch, triangular);
                break;
 
        case PUSH_DEFAULT_UPSTREAM:
-               setup_push_upstream(remote, 0);
+               setup_push_upstream(remote, branch, triangular);
                break;
 
        case PUSH_DEFAULT_CURRENT:
-               branch = branch_get(NULL);
-               if (!branch)
-                       die(_(message_detached_head_die), remote->name);
-               add_refspec(branch->name);
+               setup_push_current(remote, branch);
                break;
 
        case PUSH_DEFAULT_NOTHING:
@@ -211,8 +232,8 @@ static void setup_default_push_refspecs(struct remote *remote)
 
 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"
+          "its remote counterpart. Integrate 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_use_upstream[] =
@@ -223,15 +244,15 @@ static const char message_advice_use_upstream[] =
 
 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"
+          "counterpart. Check out this branch and integrate 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"
+          "to the same ref. You may want to first integrate 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_already_exists[] =
@@ -294,8 +315,14 @@ static int push_with_options(struct transport *transport, int flags)
        if (receivepack)
                transport_set_option(transport,
                                     TRANS_OPT_RECEIVEPACK, receivepack);
-       if (thin)
-               transport_set_option(transport, TRANS_OPT_THIN, "yes");
+       transport_set_option(transport, TRANS_OPT_THIN, thin ? "yes" : NULL);
+
+       if (!is_empty_cas(&cas)) {
+               if (!transport->smart_options)
+                       die("underlying transport does not support --%s option",
+                           CAS_OPT_NAME);
+               transport->smart_options->cas = &cas;
+       }
 
        if (verbosity > 0)
                fprintf(stderr, _("Pushing to %s\n"), transport->url);
@@ -427,15 +454,19 @@ int cmd_push(int argc, const char **argv, const char *prefix)
                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_BOOL( 0, "delete", &deleterefs, N_("delete refs")),
+               OPT_BOOL( 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, CAS_OPT_NAME, &cas, N_("refname>:<expect"),
+                 N_("require old value of ref to be at this value"),
+                 PARSE_OPT_OPTARG, parseopt_push_cas_option },
                { 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_BOOL( 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"),