remote: only update remote-tracking branch if updating refspec

'git remote rename' will only update the remote's fetch refspec if it
looks like a default one. If the remote has no default fetch refspec,
as in

[remote "origin"]
    url = git://git.kernel.org/pub/scm/git/git.git
    fetch = +refs/heads/*:refs/remotes/upstream/*

we would not update the fetch refspec and even if there is a ref
called "refs/remotes/origin/master", we should not rename it, since it
was not created by fetching from the remote.

Suggested-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Martin von Zweigbergk <martin.von.zweigbergk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/remote.c b/builtin/remote.c
index 659c6ab71e552d8899513f03572d95962dda90b2..9c746af460dd9490358d516a381546c5a14571ff 100644 (file)
--- a/builtin/remote.c
+++ b/builtin/remote.c
@@ -635,7 +635,7 @@ static int mv(int argc, const char **argv)
                old_remote_context = STRBUF_INIT;
        struct string_list remote_branches = STRING_LIST_INIT_NODUP;
        struct rename_info rename;
-       int i;
+       int i, refspec_updated = 0;
 
        if (argc != 3)
                usage_with_options(builtin_remote_rename_usage, options);
@@ -677,12 +677,13 @@ static int mv(int argc, const char **argv)
                strbuf_reset(&buf2);
                strbuf_addstr(&buf2, oldremote->fetch_refspec[i]);
                ptr = strstr(buf2.buf, old_remote_context.buf);
-               if (ptr)
+               if (ptr) {
+                       refspec_updated = 1;
                        strbuf_splice(&buf2,
                                      ptr-buf2.buf + strlen(":refs/remotes/"),
                                      strlen(rename.old), rename.new,
                                      strlen(rename.new));
-               else
+               } else
                        warning("Not updating non-default fetch respec\n"
                                "\t%s\n"
                                "\tPlease update the configuration manually if necessary.",
@@ -705,6 +706,9 @@ static int mv(int argc, const char **argv)
                }
        }
 
+       if (!refspec_updated)
+               return 0;
+
        /*
         * First remove symrefs, then rename the rest, finally create
         * the new symrefs.

diff --git a/t/t5505-remote.sh b/t/t5505-remote.sh
index 15186c8cbfa7a3c7409033a26cdfd16835e1c7cd..e8af615e6dcdf365416ef9f71825c17a0d601186 100755 (executable)
--- a/t/t5505-remote.sh
+++ b/t/t5505-remote.sh
@@ -637,7 +637,8 @@ test_expect_success 'rename does not update a non-default fetch refspec' '
        (cd four.one &&
         git config remote.origin.fetch +refs/heads/*:refs/heads/origin/* &&
         git remote rename origin upstream &&
-        test "$(git config remote.upstream.fetch)" = "+refs/heads/*:refs/heads/origin/*")
+        test "$(git config remote.upstream.fetch)" = "+refs/heads/*:refs/heads/origin/*" &&
+        git rev-parse -q origin/master)
 
 '