ack/lang/m2/comp/make.hfiles

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#!/bin/sh
: Update Files from database
PATH=/bin:/usr/bin
case $# in
1) ;;
*) echo use: $0 file >&2
exit 1
esac
(
IFCOMMAND="if [ -r \$FN ] ;\
then if cmp -s \$FN \$TMP;\
then rm \$TMP;\
else mv \$TMP \$FN;\
echo update \$FN;\
fi;\
else mv \$TMP \$FN;\
echo create \$FN;\
fi"
echo 'TMP=.uf$$'
echo 'FN=$TMP'
echo 'cat >$TMP <<\!EOF!'
sed -n '/^!File:/,${
/^$/d
/^!File:[ ]*\(.*\)$/s@@!EOF!\
'"$IFCOMMAND"'\
FN=\1\
cat >$TMP <<\\!EOF!@
p
}' $1
echo '!EOF!'
echo $IFCOMMAND
) |
sh