Added script to check whether grep is coloured

Resolves: rhbz#1034631

colorgrep.csh

@@ -1,13 +1,9 @@
 
 # color-grep initialization
 
-if ( -r /etc/GREP_COLORS ) then
-    set color_none=`sed -n '/^COLOR.*none/Ip' < /etc/GREP_COLORS`
-    if ( "$color_none" != '' ) then
-        unset color_none
-        exit
-    endif
-    unset color_none
+/usr/libexec/grepconf.sh -c
+if ( $status == 1 ) then
+    exit
 endif
 
 alias grep 'grep --color=auto'

colorgrep.sh

@@ -1,8 +1,6 @@
 # color-grep initialization
 
-if [ -r /etc/GREP_COLORS ]; then
-    grep -qi "^COLOR.*none" /etc/GREP_COLORS >/dev/null 2>/dev/null && return
-fi
+/usr/libexec/grepconf.sh -c || return
 
 alias grep='grep --color=auto' 2>/dev/null
 alias egrep='egrep --color=auto' 2>/dev/null

grep.spec

@@ -3,13 +3,14 @@
 Summary: Pattern matching utilities
 Name: grep
 Version: 2.20
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPLv3+
 Group: Applications/Text
 Source: ftp://ftp.gnu.org/pub/gnu/grep/grep-%{version}.tar.xz
 Source1: colorgrep.sh
 Source2: colorgrep.csh
 Source3: GREP_COLORS
+Source4: grepconf.sh
 # upstream ticket 39444
 Patch0: grep-2.20-man-fix-gs.patch
 # upstream ticket 39445
@@ -57,6 +58,7 @@ rm -f $RPM_BUILD_ROOT%{_infodir}/dir
 mkdir -p $RPM_BUILD_ROOT%{_sysconfdir}/profile.d
 install -pm 644 %{SOURCE1} %{SOURCE2} $RPM_BUILD_ROOT%{_sysconfdir}/profile.d
 install -pm 644 %{SOURCE3} $RPM_BUILD_ROOT%{_sysconfdir}
+install -Dpm 755 %{SOURCE4} $RPM_BUILD_ROOT%{_libexecdir}/grepconf.sh
 
 %find_lang %name
 
@@ -85,8 +87,13 @@ fi
 %config(noreplace) %{_sysconfdir}/GREP_COLORS
 %{_infodir}/*.info*.gz
 %{_mandir}/*/*
+%{_libexecdir}/grepconf.sh
 
 %changelog
+* Wed Aug 20 2014 Jaroslav Škarvada <jskarvad@redhat.com> - 2.20-5
+- Added script to check whether grep is coloured
+  Resolves: rhbz#1034631
+
 * Sat Aug 16 2014 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.20-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_21_22_Mass_Rebuild
 

grepconf.sh

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+case "$1" in
+    -c | --interactive-color)
+        ! grep -qsi "^COLOR.*none" /etc/GREP_COLORS
+        ;;
+    *)
+        echo >&2 "Invalid / no option passed, so far only -c | --interactive-color is supported."
+        exit 1
+        ;;
+esac