[PATCH 3/3] request-pull: find matching tag or branch name on remote side

[Paolo Bonzini <bonzini@gnu.org>]

From: Paolo Bonzini <pbonzini@redhat.com>

If the third argument is not passed to "git request-pull", the
find_matching_ref script will look for HEAD in the remote side
which does not work.  Instead, default to the ref names found
via "git show-ref" or "git tag".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 git-request-pull.sh     | 14 ++++++++++----
 t/t5150-request-pull.sh |  2 +-
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/git-request-pull.sh b/git-request-pull.sh
index a507006..fcbe383 100755
--- a/git-request-pull.sh
+++ b/git-request-pull.sh
@@ -54,8 +54,6 @@ fi
 local=${3%:*}
 local=${local:-HEAD}
 remote=${3#*:}
-pretty_remote=${remote#refs/}
-pretty_remote=${pretty_remote#heads/}
 head=$(git symbolic-ref -q "$local")
 head=${head:-$(git show-ref --heads --tags "$local" | cut -d' ' -f2)}
 head=${head:-$(git tag --points-at "$local" | sed 's,^,refs/tags/,')}
@@ -64,6 +62,14 @@ head=${head:-$(git rev-parse --quiet --verify "$local")}
 # None of the above? Bad.
 test -z "$head" && die "fatal: Not a valid revision: $local"
 
+#
+# If $3 was not there, the remote name should be the same
+# as the locally detected name
+#
+remote=${remote:-$head}
+pretty_remote=${remote#refs/}
+pretty_remote=${pretty_remote#heads/}
+
 # This also verifies that the resulting head is unique:
 # "git show-ref" could have shown multiple matching refs..
 headrev=$(git rev-parse --verify --quiet "$head"^0)
@@ -111,12 +117,12 @@ find_matching_ref='
 	}
 '
 
-ref=$(git ls-remote "$url" | @@PERL@@ -e "$find_matching_ref" "${remote:-HEAD}" "$headrev")
+ref=$(git ls-remote "$url" | @@PERL@@ -e "$find_matching_ref" "$remote" "$headrev")
 
 if test -z "$ref"
 then
 	echo "warn: No match for commit $headrev found at $url" >&2
-	echo "warn: Are you sure you pushed '${remote:-HEAD}' there?" >&2
+	echo "warn: Are you sure you pushed '$remote' there?" >&2
 	status=1
 fi
 
diff --git a/t/t5150-request-pull.sh b/t/t5150-request-pull.sh
index 8b19279..11ba8ff 100755
--- a/t/t5150-request-pull.sh
+++ b/t/t5150-request-pull.sh
@@ -178,7 +178,7 @@ test_expect_success 'request asks HEAD to be pulled' '
 		read repository &&
 		read branch
 	} <digest &&
-	test -z "$branch"
+	test "$branch" = "tags/full"
 
 '
 
-- 
2.3.0