Merge branch 'mm/mediawiki-dumb-push-fix'

* mm/mediawiki-dumb-push-fix:
  git-remote-mediawiki: no need to update private ref in non-dumb push
  git-remote-mediawiki: use no-private-update capability on dumb push
  transport-helper: add no-private-update capability
  git-remote-mediawiki: add test and check Makefile targets

6 files changed, 34 insertions, 4 deletions

diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt
index bc069c23df..be7e224a03 100644
--- a/Documentation/gitremote-helpers.txt
+++ b/Documentation/gitremote-helpers.txt
@@ -120,6 +120,11 @@ connecting (see the 'connect' command under COMMANDS).
 When choosing between 'push' and 'export', Git prefers 'push'.
 Other frontends may have some other order of preference.
 
+'no-private-update'::
+	When using the 'refspec' capability, git normally updates the
+	private ref on successful push. This update is disabled when
+	the remote-helper declares the capability 'no-private-update'.
+
 
 Capabilities for Fetching
 ^^^^^^^^^^^^^^^^^^^^^^^^^
diff --git a/contrib/mw-to-git/Makefile b/contrib/mw-to-git/Makefile
index 76fcd4defc..f206f9655b 100644
--- a/contrib/mw-to-git/Makefile
+++ b/contrib/mw-to-git/Makefile
@@ -24,6 +24,11 @@ INSTLIBDIR=$(shell $(MAKE) -C $(GIT_ROOT_DIR)/perl \
 
 all: build
 
+test: all
+	$(MAKE) -C t
+
+check: perlcritic test
+
 install_pm:
 	install $(GIT_MEDIAWIKI_PM) $(INSTLIBDIR)/$(GIT_MEDIAWIKI_PM)
 
@@ -41,4 +46,7 @@ clean:
 	rm $(INSTLIBDIR)/$(GIT_MEDIAWIKI_PM)
 
 perlcritic:
-	perlcritic -2 *.perl
+	perlcritic -5 $(SCRIPT_PERL)
+	-perlcritic -2 $(SCRIPT_PERL)
+
+.PHONY: all test check install_pm install clean perlcritic
diff --git a/contrib/mw-to-git/git-remote-mediawiki.perl b/contrib/mw-to-git/git-remote-mediawiki.perl
index f8d7d2ca6c..c9a4805ec1 100755
--- a/contrib/mw-to-git/git-remote-mediawiki.perl
+++ b/contrib/mw-to-git/git-remote-mediawiki.perl
@@ -590,6 +590,9 @@ sub mw_capabilities {
 	print {*STDOUT} "import\n";
 	print {*STDOUT} "list\n";
 	print {*STDOUT} "push\n";
+	if ($dumb_push) {
+		print {*STDOUT} "no-private-update\n";
+	}
 	print {*STDOUT} "\n";
 	return;
 }
@@ -1211,7 +1214,6 @@ sub mw_push_revision {
 		}
 		if (!$dumb_push) {
 			run_git(qq(notes --ref=${remotename}/mediawiki add -f -m "mediawiki_revision: ${mw_revision}" ${sha1_commit}));
-			run_git(qq(update-ref -m "Git-MediaWiki push" refs/mediawiki/${remotename}/master ${sha1_commit} ${sha1_child}));
 		}
 	}
 
diff --git a/git-remote-testgit.sh b/git-remote-testgit.sh
index 2109070d00..6d2f282d32 100755
--- a/git-remote-testgit.sh
+++ b/git-remote-testgit.sh
@@ -38,6 +38,7 @@ do
 			echo "*export-marks $gitmarks"
 		fi
 		test -n "$GIT_REMOTE_TESTGIT_SIGNED_TAGS" && echo "signed-tags"
+		test -n "$GIT_REMOTE_TESTGIT_NO_PRIVATE_UPDATE" && echo "no-private-update"
 		echo
 		;;
 	list)
diff --git a/t/t5801-remote-helpers.sh b/t/t5801-remote-helpers.sh
index 8c4c5396a8..613f69a254 100755
--- a/t/t5801-remote-helpers.sh
+++ b/t/t5801-remote-helpers.sh
@@ -182,6 +182,17 @@ test_expect_success 'push update refs' '
 	)
 '
 
+test_expect_success 'push update refs disabled by no-private-update' '
+	(cd local &&
+	echo more-update >>file &&
+	git commit -a -m more-update &&
+	git rev-parse --verify testgit/origin/heads/update >expect &&
+	GIT_REMOTE_TESTGIT_NO_PRIVATE_UPDATE=t git push origin update &&
+	git rev-parse --verify testgit/origin/heads/update >actual &&
+	test_cmp expect actual
+	)
+'
+
 test_expect_success 'push update refs failure' '
 	(cd local &&
 	git checkout update &&
diff --git a/transport-helper.c b/transport-helper.c
index 4c2a39e8ff..b32e2d64dd 100644
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -28,7 +28,8 @@ struct helper_data {
 		connect : 1,
 		signed_tags : 1,
 		check_connectivity : 1,
-		no_disconnect_req : 1;
+		no_disconnect_req : 1,
+		no_private_update : 1;
 	char *export_marks;
 	char *import_marks;
 	/* These go from remote name (as in "list") to private name */
@@ -208,6 +209,8 @@ static struct child_process *get_helper(struct transport *transport)
 			strbuf_addstr(&arg, "--import-marks=");
 			strbuf_addstr(&arg, capname + strlen("import-marks "));
 			data->import_marks = strbuf_detach(&arg, NULL);
+		} else if (!prefixcmp(capname, "no-private-update")) {
+			data->no_private_update = 1;
 		} else if (mandatory) {
 			die("Unknown mandatory capability %s. This remote "
 			    "helper probably needs newer version of Git.",
@@ -738,7 +741,7 @@ static void push_update_refs_status(struct helper_data *data,
 		if (push_update_ref_status(&buf, &ref, remote_refs))
 			continue;
 
-		if (!data->refspecs)
+		if (!data->refspecs || data->no_private_update)
 			continue;
 
 		/* propagate back the update to the remote namespace */