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#!/bin/sh
#This script changes the header of .ml* files
if [ ! $# = 2 ]; then
echo Usage: change-header old-header-file new-header-file
exit 1
fi
oldheader=$1
newheader=$2
if [ ! -f $oldheader ]; then echo Cannot read file $oldheader; exit 1; fi
if [ ! -f $newheader ]; then echo Cannot read file $newheader; exit 1; fi
n=`wc -l $oldheader | sed -e "s/ *\([0-9]*\).*/\1/g"`
nsucc=`expr $n + 1`
linea='(* -*- coding:utf-8 -*- *)'
lineb='(* -*- compile-command: "make -C ../.. bin/coqdoc" -*- *)'
modified=0
kept=0
for i in `find . -name \*.mli -o -name \*.ml -o -name \*.ml4 -o -name \*.mll -o -name \*.mly -o -name \*.mlp -o -name \*.v`; do
headline=`head -n 1 $i`
if `echo $headline | grep "(\* -\*- .* \*)" > /dev/null`; then
# Has emacs header
head -n +$nsucc $i | tail -n $n > $i.head.tmp$$
hasheadline=1
nnext=`expr $nsucc + 1`
else
head -n +$n $i > $i.head.tmp$$
hasheadline=0
nnext=$nsucc
fi
if diff -a -q $oldheader $i.head.tmp$$ > /dev/null; then
echo "$i: header changed"
if [ $hasheadline = 1 ]; then
echo $headline > $i.tmp$$
else
touch $i.tmp$$
fi
cat $newheader >> $i.tmp$$
tail -n +$nnext $i >> $i.tmp$$
mv $i.tmp$$ $i
modified=`expr $modified + 1`
else
kept=`expr $kept + 1`
fi
rm $i.head.tmp$$
done
echo $modified files updated
echo $kept files unchanged
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