From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sun, 26 Jul 2015 14:19:20 +0000 (+0100)
Subject: Dgit.pm: Provide messagequote
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=dgit.git;a=commitdiff_plain;h=8309f23714c0e46e1f6cd94362e57b38ae7db810

Dgit.pm: Provide messagequote
---

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index edb338ca..ba3e6880 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -25,7 +25,7 @@ BEGIN {
                       initdebug enabledebug enabledebuglevel
                       printdebug debugcmd
                       $debugprefix *debuglevel *DEBUG
-                      shellquote printcmd);
+                      shellquote printcmd messagequote);
     # implicitly uses $main::us
     %EXPORT_TAGS = ( policyflags => [qw(NOFFCHECK FRESHREPO)] );
     @EXPORT_OK   = @{ $EXPORT_TAGS{policyflags} };
@@ -73,6 +73,16 @@ sub printdebug {
     print DEBUG $debugprefix, @_ or die $! if $debuglevel>0;
 }
 
+sub messagequote ($) {
+    local ($_) = @_;
+    s{\\}{\\\\}g;
+    s{\n}{\\n}g;
+    s{\x08}{\\b}g;
+    s{\t}{\\t}g;
+    s{[\000-\037\177]}{ sprintf "\\x%02x", ord $& }ge;
+    $_;
+}
+
 sub shellquote {
     my @out;
     local $_;