Merge branch 'ld/p4-exclude-in-sync'

Like the "clone" subcommand, allow excluding subdirectories in the
"sync" subcommand.

* ld/p4-exclude-in-sync:
  git-p4: support excluding paths on sync

t/t9817-git-p4-exclude.sh

@@ -0,0 +1,71 @@
+#!/bin/sh
+
+test_description='git p4 tests for excluded paths during clone and sync'
+
+. ./lib-git-p4.sh
+
+test_expect_success 'start p4d' '
+	start_p4d
+'
+
+# Create a repo with the structure:
+#
+#    //depot/wanted/foo
+#    //depot/discard/foo
+#
+# Check that we can exclude a subdirectory with both
+# clone and sync operations.
+
+test_expect_success 'create exclude repo' '
+	(
+		cd "$cli" &&
+		mkdir -p wanted discard &&
+		echo wanted >wanted/foo &&
+		echo discard >discard/foo &&
+		p4 add wanted/foo discard/foo &&
+		p4 submit -d "initial revision"
+	)
+'
+
+test_expect_success 'check the repo was created correctly' '
+	test_when_finished cleanup_git &&
+	git p4 clone --dest="$git" //depot/...@all &&
+	(
+		cd "$git" &&
+		test_path_is_file wanted/foo &&
+		test_path_is_file discard/foo
+	)
+'
+
+test_expect_success 'clone, excluding part of repo' '
+	test_when_finished cleanup_git &&
+	git p4 clone -//depot/discard/... --dest="$git" //depot/...@all &&
+	(
+		cd "$git" &&
+		test_path_is_file wanted/foo &&
+		test_path_is_missing discard/foo
+	)
+'
+
+test_expect_success 'clone, then sync with exclude' '
+	test_when_finished cleanup_git &&
+	git p4 clone -//depot/discard/... --dest="$git" //depot/...@all &&
+	(
+		cd "$cli" &&
+		p4 edit wanted/foo discard/foo &&
+		date >>wanted/foo &&
+		date >>discard/foo &&
+		p4 submit -d "updating" &&
+
+		cd "$git" &&
+		git p4 sync -//depot/discard/... &&
+		test_path_is_file wanted/foo &&
+		test_path_is_missing discard/foo
+	)
+'
+
+test_expect_success 'kill p4d' '
+	kill_p4d
+'
+
+test_done