[PATCH 1/1] Use correct /dev/null for UNIX and Windows

From: chris via GitGitGadget <gitgitgadget@gmail.com>
Date: Oct 30, 2018, 18:26 UTC
Message-ID: <8159cbd1b8025f33fb9d0e254db1a3c2a066f853.1540923993.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.59.git.gitgitgadget@gmail.com>

From: chris <chris@webstech.net>

Use File::Spec->devnull() for output redirection to avoid messages when Windows version of Perl is first in path. The message 'The system cannot find the path specified.' is displayed each time git is run to get colors.

Signed-off-by: Chris. Webster <chris@webstech.net>
---
 contrib/diff-highlight/DiffHighlight.pm | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/contrib/diff-highlight/DiffHighlight.pm b/contrib/diff-highlight/DiffHighlight.pm
index 536754583..7440aa1c4 100644
--- a/contrib/diff-highlight/DiffHighlight.pm
+++ b/contrib/diff-highlight/DiffHighlight.pm
@@ -4,6 +4,11 @@ use 5.008;
 use warnings FATAL => 'all';
 use strict;
 
+# Use the correct value for both UNIX and Windows (/dev/null vs nul)
+use File::Spec;
+
+my $NULL = File::Spec->devnull();
+
 # Highlight by reversing foreground and background. You could do
 # other things like bold or underline if you prefer.
 my @OLD_HIGHLIGHT = (
@@ -134,7 +139,7 @@ sub highlight_stdin {
 # fallback, which means we will work even if git can't be run.
 sub color_config {
 	my ($key, $default) = @_;
-	my $s = `git config --get-color $key 2>/dev/null`;
+	my $s = `git config --get-color $key 2>$NULL`;
 	return length($s) ? $s : $default;
 }

-- 
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