Script to check patches violating the GNU style.

2010-07-02  Sebastian Pop  <sebastian.pop@amd.com>

	* check_GNU_style.sh: New.

From-SVN: r161729

contrib/ChangeLog

@@ -1,3 +1,7 @@
+2010-07-02  Sebastian Pop  <sebastian.pop@amd.com>
+
+	* check_GNU_style.sh: New.
+
 2010-07-02  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>
 
 	* make_sunver.pl: New file.

contrib/check_GNU_style.sh

@@ -0,0 +1,117 @@
+#!/bin/sh
+
+# Checks some of the GNU style formatting rules in a set of patches.
+# Copyright (C) 2010  Free Software Foundation, Inc.
+# Contributed by Sebastian Pop <sebastian.pop@amd.com>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+usage() {
+    cat <<EOF
+check_GNU_style.sh [patch]...
+
+    Checks the patches for some of the GNU style formatting problems.
+    Please note that these checks are not always accurate, and
+    complete.  The reference documentation of the GNU Coding Standards
+    can be found here: http://www.gnu.org/prep/standards_toc.html
+    and there are also some additional coding conventions for GCC:
+    http://gcc.gnu.org/codingconventions.html
+
+EOF
+    exit 1
+}
+
+test $# -eq 0 && usage
+
+tmp=check_GNU_style.tmp
+
+# Grep
+g (){
+    msg="$1"
+    arg="$2"
+    shift 2
+    grep -nH '^+' $* \
+	| grep -v ':+++' \
+	| egrep --color=always -- "$arg" \
+	> $tmp && printf "\n$msg\n"
+    cat $tmp
+}
+
+# And Grep
+ag (){
+    msg="$1"
+    arg1="$2"
+    arg2="$3"
+    shift 3
+    grep -nH '^+' $* \
+	| grep -v ':+++' \
+	| egrep --color=always -- "$arg1" \
+	| egrep --color=always -- "$arg2" \
+	> $tmp && printf "\n$msg\n"
+    cat $tmp
+}
+
+# reVerse Grep
+vg (){
+    msg="$1"
+    varg="$2"
+    arg="$3"
+    shift 3
+    grep -nH '^+' $* \
+	| grep -v ':+++' \
+	| egrep -v -- "$varg" \
+	| egrep --color=always -- "$arg" \
+	> $tmp && printf "\n$msg\n"
+    cat $tmp
+}
+
+col (){
+    msg="$1"
+    shift 1
+    grep -nH '^+' $* \
+	| grep -v ':+++' \
+	| cut -f 2 -d '+' \
+	| awk '{ if (length ($0) > 80) print $0 }' \
+	> $tmp && printf "\n$msg\n"
+    cat $tmp
+}
+
+col 'Lines should not exceed 80 characters.' $*
+
+g 'Trailing whitespace.' \
+    '[[:space:]]$' $*
+
+g 'Space before dot.' \
+    '[[:alnum:]][[:blank:]]+\.' $*
+
+g 'Dot, space, space, new sentence.' \
+    '[[:alnum:]]\.([[:blank:]]|[[:blank:]]{3,})[[:alnum:]]' $*
+
+g 'Dot, space, space, end of comment.' \
+    '[[:alnum:]]\.([[:blank:]]{0,1}|[[:blank:]]{3,})\*/' $*
+
+g 'Sentences should end with a dot.  Dot, space, space, end of the comment.' \
+    '[[:alnum:]][[:blank:]]*\*/' $*
+
+vg 'There should be exactly one space between function name and parentheses.' \
+    '\#define' '[[:alnum:]]([^[:blank:]]|[[:blank:]]{2,})\(' $*
+
+g 'There should be no space before closing parentheses.' \
+    '[[:graph:]][[:blank:]]+\)' $*
+
+ag 'Braces should be on a separate line.' \
+    '\{' 'if[[:blank:]]\(|while[[:blank:]]\(|switch[[:blank:]]\(' $*
+
+