[PATCH v3 0/2] stash push -u -- <pathspec> fixes

[Thomas Gummerer <t.gummerer@gmail.com>]

Thanks Marc for catching the regression I almost introduced and Junio
for the review of the second patch.  Here's a re-roll that should fix
the issues of v2.

Interdiff below:

diff --git a/git-stash.sh b/git-stash.sh
index 7a4ec98f6b..dbedc7fb9f 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -39,7 +39,7 @@ fi
 no_changes () {
 	git diff-index --quiet --cached HEAD --ignore-submodules -- "$@" &&
 	git diff-files --quiet --ignore-submodules -- "$@" &&
-	(test -z "$untracked" || test -z "$(untracked_files $@)")
+	(test -z "$untracked" || test -z "$(untracked_files "$@")")
 }
 
 untracked_files () {
@@ -320,11 +320,14 @@ push_stash () {
 			git clean --force --quiet -d $CLEAN_X_OPTION -- "$@"
 		fi
 
-		if test $# != 0 && git ls-files --error-unmatch -- "$@" >/dev/null 2>/dev/null
+		if test $# != 0
 		then
-			git add -u -- "$@" |
-			git checkout-index -z --force --stdin
-			git diff-index -p --cached --binary HEAD -- "$@" | git apply --index -R
+			if git ls-files --error-unmatch -- "$@" >/dev/null 2>/dev/null
+			then
+				git add -u -- "$@" |
+				git checkout-index -z --force --stdin
+				git diff-index -p --cached --binary HEAD -- "$@" | git apply --index -R
+			fi
 		else
 			git reset --hard -q
 		fi
diff --git a/t/t3903-stash.sh b/t/t3903-stash.sh
index 5e7078c083..7efc52fe11 100755
--- a/t/t3903-stash.sh
+++ b/t/t3903-stash.sh
@@ -1103,6 +1103,15 @@ test_expect_success 'stash -u -- <untracked> doesnt print error' '
 	test_line_count = 0 actual
 '
 
+test_expect_success 'stash -u -- <untracked> leaves rest of working tree in place' '
+	>tracked &&
+	git add tracked &&
+	>untracked &&
+	git stash push -u -- untracked &&
+	test_path_is_missing untracked &&
+	test_path_is_file tracked
+'
+
 test_expect_success 'stash -u -- <non-existant> shows no changes when there are none' '
 	git stash push -u -- non-existant >actual &&
 	echo "No local changes to save" >expect &&

Thomas Gummerer (2):
  stash push: avoid printing errors
  stash push -u: don't create empty stash

 git-stash.sh     | 11 +++++++----
 t/t3903-stash.sh | 22 ++++++++++++++++++++++
 2 files changed, 29 insertions(+), 4 deletions(-)

-- 
2.16.2.804.g6dcf76e11