git-push: documentation and tests for pushing only branches

Commit 098e711e caused git-push to match only branches when
considering which refs to push. This patch updates the
documentation accordingly and adds a test for this behavior.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-push.txt

@@ -48,7 +48,7 @@ even if it does not result in a fast forward update.
 Note: If no explicit refspec is found, (that is neither
 on the command line nor in any Push line of the
 corresponding remotes file---see below), then all the
-refs that exist both on the local side and on the remote
+heads that exist both on the local side and on the remote
 side are updated.
 +
 `tag <tag>` means the same as `refs/tags/<tag>:refs/tags/<tag>`.
@@ -61,7 +61,7 @@ the remote repository.
 
 \--all::
 	Instead of naming each ref to push, specifies that all
-	refs be pushed.
+	refs under `$GIT_DIR/refs/heads/` be pushed.
 
 \--tags::
 	All refs under `$GIT_DIR/refs/tags` are pushed, in

Documentation/git-send-pack.txt

@@ -32,7 +32,7 @@ OPTIONS
 
 \--all::
 	Instead of explicitly specifying which refs to update,
-	update all refs that locally exist.
+	update all heads that locally exist.
 
 \--force::
 	Usually, the command refuses to update a remote ref that
@@ -70,7 +70,7 @@ With '--all' flag, all refs that exist locally are transferred to
 the remote side.  You cannot specify any '<ref>' if you use
 this flag.
 
-Without '--all' and without any '<ref>', the refs that exist
+Without '--all' and without any '<ref>', the heads that exist
 both on the local side and on the remote side are updated.
 
 When one or more '<ref>' are specified explicitly, it can be either a

t/t5400-send-pack.sh

@@ -113,4 +113,14 @@ test_expect_success \
 	! git diff .git/refs/heads/master victim/.git/refs/heads/master
 '
 
+test_expect_success \
+	'pushing does not include non-head refs' '
+	mkdir parent && cd parent &&
+	git-init && touch file && git-add file && git-commit -m add &&
+	cd .. &&
+	git-clone parent child && cd child && git-push --all &&
+	cd ../parent &&
+	git-branch -a >branches && ! grep -q origin/master branches
+'
+
 test_done