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[PATCH v2] stash: prevent warning about null bytes in input

From
Kevin Daudt <me@ikke.info>
Date
Aug 14, 2017, 21:43 UTC
Message-ID
<20170814214333.12789-1-me@ikke.info>
In-Reply-To
<20170814050801.7158-1-me@ikke.info>

The `no_changes` function calls the `untracked_files` function through command substitution. `untracked_files` will return null bytes because it runs ls-files with the '-z' option.

Bash since version 4.4 warns about these null bytes. As they are not required for the test that is being done, make sure `untracked_files` does not output null bytes when not required.

This is achieved by adding a parameter to the `untracked_files` function to specify wither `-z` should be passed to ls-files or not.

This warning is triggered when running git stash save -u resulting in two warnings:

    git-stash: line 43: warning: command substitution: ignored null byte
    in input
Signed-off-by: Kevin Daudt <me@ikke.info>
---
 git-stash.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/git-stash.sh b/git-stash.sh
index 9b6c2da7b..5f09a47f0 100755
--- a/git-stash.sh
+++ b/git-stash.sh
@@ -43,9 +43,16 @@ no_changes () {
 }
 
 untracked_files () {
+	if test "$1" = "-z"
+	then
+		shift
+		z=-z
+	else
+		z=
+	fi
 	excl_opt=--exclude-standard
 	test "$untracked" = "all" && excl_opt=
-	git ls-files -o -z $excl_opt -- "$@"
+	git ls-files -o $z $excl_opt -- "$@"
 }
 
 clear_stash () {
@@ -114,7 +121,7 @@ create_stash () {
 		# Untracked files are stored by themselves in a parentless commit, for
 		# ease of unpacking later.
 		u_commit=$(
-			untracked_files "$@" | (
+			untracked_files -z "$@" | (
 				GIT_INDEX_FILE="$TMPindex" &&
 				export GIT_INDEX_FILE &&
 				rm -f "$TMPindex" &&
-- 
2.14.1.145.gb3622a4ee9
Previous: Junio C Hamano
Message 5 of 5 in “stash: prevent warning about null bytes in input”
  1. stash: prevent warning about null bytes in inputKevin Daudt, Aug 14, 2017
  2. Junio C HamanoAug 14, 2017
  3. Kevin DaudtAug 14, 2017
  4. Junio C HamanoAug 14, 2017
  5. stash: prevent warning about null bytes in inputKevin Daudt, Aug 14, 2017

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