#!/bin/sh
-# $Id: srclist-update,v 1.2 2002-09-25 14:18:57 karl Exp $
-#
-# Check for files being up to date, according to the list on stdin.
-#
-# Source $mydir/srclistvars.sh first, if it exists, where
-# $mydir=`dirname $0`.
+# Check for files in directory $1 being up to date, according to the
+# list on stdin. Don't actually make any changes, just show the diffs.
+#
+# Copyright (C) 2002, 2003, 2005, 2007, 2008, 2009, 2010 Free Software
+# Foundation, Inc.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+
+# Originally written by Karl Berry.
+
if test -n "$1"; then
cd "$1" || exit 1
verbose=false
#chicken="echo (would)"
-srctmp=${TMPDIR-/tmp}/srclist.src
-dsttmp=${TMPDIR-/tmp}/srclist.dst
+: ${TMPDIR=/tmp}
+dsttmp=$TMPDIR/srclist.dst
+# Source `dirname $0`/srclistvars.sh first, if it exists.
mydir=`dirname $0`
test -r $mydir/srclistvars.sh && . $mydir/srclistvars.sh
-cat | while read src dst; do
- test -z "$dst" && continue # skip lines without second element
- echo "$src $dst" | sed 's/#.*$//' | egrep '^\s*$' >/dev/null \
- && continue # skip whitespace and comment-only lines
-
- src=`eval echo $src`
+
+# \f
+# sed command to fix the license to be GPL.
+fixlicense='
+ /^[[:space:]]*#[[:space:]]*Th[ei][ s].* is free software/,/^[[:space:]]*#.*USA\./c\
+# 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, see <http://www.gnu.org/licenses/>.
+
+ /Th[ei][ s].* is free software/,/\*\//c\
+ 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, see <http://www.gnu.org/licenses/>. */
+'
+
+# sed command to remove lines containing $Id lines.
+# Quote the $ so that CVS does not expand it in this script.
+remove_id_lines='/[$]Id:.*[$]/d'
+
+# $1 is input file, $2 is output.
+# Remove $Id lines, since they'll differ between source locations.
+# If $options contains "gpl", change the license to be the standard
+# GPL. We use this for libc files, et al.
+#
+fixfile() \
+{
+ sed_command="$remove_id_lines"
+
+ case " $options " in
+ *' gpl '*)
+ sed_command="$sed_command; $fixlicense";;
+ esac
+
+ sed "$sed_command" $1 >$2
+}
+
+
+# \f
+cat | while read src dst options; do
+ #echo "src=$src, dst=$dst, options=$options" >&2
+ case $src:$dst in
+ *: ) continue;; # skip lines without second element
+ '#'* ) continue;; # skip comment-only lines
+ esac
+
+ # Expand variables and make sure we have an input file.
+ eval src=$src
if test ! -r $src; then
echo "$0: cannot read $src" >&2
continue
fi
-
- # If given src/foo.c dst, copy to dst/foo.c.
- dst=`eval echo $dst`
+
+ # Ignore subdirs in src dir. E.g., if input spec is
+ # src/subdir/foo.c dst
+ # then write destination file dst/foo.c.
+ eval dst=$dst
test -d $dst && dst=$dst/`basename $src`
-
- # $ Id: lines will differ.
- fgrep -v '$'"Id:" $src >$srctmp
- test -r $dst && fgrep -v '$'"Id:" $dst >$dsttmp
+
+ # Fix files in both src and dst, for the sake
+ # of a clean comparison.
+ srctmp=$TMPDIR/`basename $src`
+ fixfile $src $srctmp
+ test -r $dst && fixfile $dst $dsttmp
+
+ # if src was executable, make dst executable, to placate git.
+ test -x $src && chmod a+x $dst
if test ! -e $dst; then
- echo "## $src $dst # new"
- $chicken cp -p $src $dst
+ echo "## $srctmp $dst # new"
+ $chicken cp -p $srctmp $dst
elif cmp -s $srctmp $dsttmp; then
- $verbose && echo "## $src $dst # unchanged"
+ $verbose && echo "## $srctmp $dst # unchanged"
else
- echo "## $src $dst # changes"
- diff -c2 $dst $src
+ echo "## $srctmp $dst # changes"
+ diff -C 2 $dst $srctmp
fi
done
-rm -f $srctmp $dsttmp
+rm -f $dsttmp