While using diff-highlight with other tools, I have discovered that Python
ignores SIGPIPE by default. Unfortunately, this also means that tools
attempting to launch a pager under Python--and don't realize this is
happening--means that the subprocess inherits this setting. In this case, it
means diff-highlight will be launched with SIGPIPE being ignored. Let's work
with those broken scripts by restoring the default SIGPIPE handler.
Signed-off-by: John Szakmeister <j...@szakmeister.net>
---
Incorporates feedback from Jeff King and now we just restore the default signal
handler using the correct case of 'DEFAULT'.
contrib/diff-highlight/diff-highlight | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/contrib/diff-highlight/diff-highlight
b/contrib/diff-highlight/diff-highlight
index c4404d4..69a652e 100755
--- a/contrib/diff-highlight/diff-highlight
+++ b/contrib/diff-highlight/diff-highlight
@@ -14,6 +14,10 @@ my @removed;
my @added;
my $in_hunk;
+# Some scripts may not realize that SIGPIPE is being ignored when launching the
+# pager--for instance scripts written in Python.
+$SIG{PIPE} = 'DEFAULT';
+
while (<>) {
if (!$in_hunk) {
print;
--
2.0.1
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