mirror of
https://github.com/debauchee/barrier.git
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97 lines
2.3 KiB
Plaintext
97 lines
2.3 KiB
Plaintext
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#!/bin/sh
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# add header to file. intended to add copyright info to files.
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#
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# usage: addheader <file-with-header> <file-to-modify>
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# choose comment character
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ext=`echo $2 | sed -e 's/.*\.\([^.]*\)$/\1/'`
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case $ext in
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c|cpp|h)
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openComment='/*'
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closeComment=' */'
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innerComment=' * '
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;;
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am)
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openComment=''
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closeComment=''
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innerComment='# '
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;;
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m4)
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openComment=''
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closeComment=''
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innerComment='dnl '
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;;
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in)
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if test $2 = "configure.in"; then
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openComment=''
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closeComment=''
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innerComment='dnl '
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fi
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;;
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*)
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;;
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esac
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if test -z "$innerComment"; then
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echo Unrecognized extension $ext. Exiting.
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exit 1
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fi
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# create awk program to strip old header. we have to use a heuristic
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# to determine what's a header. we'll strip any continuous comment
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# at the start of a file that includes a line with `Copyright'.
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body=".$$.ahb"
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ocMatch=`echo "$openComment" | sed -e 's/\*/\\\\*/g' -e 's#/#\\\\/#g'`
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ccMatch=`echo "$closeComment" | sed -e 's/\*/\\\\*/g' -e 's/^ +/ */' -e 's#/#\\\\/#g'`
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icMatch=`echo "$innerComment" | sed -e 's/\*/\\\\*/g' -e 's#/#\\\\/#g'`
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awkGetHeader="m==4"
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if test -n "$ocMatch"; then
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awkGetHeader="$awkGetHeader;m==0 && /${ocMatch}/{m=1}"
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else
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awkGetHeader="BEGIN{m=1};$awkGetHeader"
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fi
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if test -n "$ccMatch"; then
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awkGetHeader="$awkGetHeader;m==1 && /^${icMatch}/{m=2}"
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awkGetHeader="$awkGetHeader;/${ccMatch}/{m=4}"
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else
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awkGetHeader="m==3 && !/^${icMatch}/{m=4};$awkGetHeader"
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awkGetHeader="$awkGetHeader;m==1 && /^${icMatch}/{m=3}"
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fi
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# strip old header
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awk "$awkGetHeader" $2 > $body
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if test $? -ne 0; then
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rm -f $body
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echo "can't parse file"
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fi
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# if body is empty then there was no header
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if test ! -s $body; then
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cp $2 $body
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else
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fLength=`cat $2 | wc -l`
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bLength=`cat $body | wc -l`
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hLength=`expr $fLength - $bLength`
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crLine=`grep -n -i "copyright" $2 | sed -e 's/:.*//'`
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test -z "$crLine" && crLine=`expr $hLength + 1`
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if test $crLine -gt $hLength; then
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# no copyright in header
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cp $2 $body
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fi
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fi
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# add new header
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echo -n "" > $2
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if test -n "$openComment"; then
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echo "$openComment" >> $2
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fi
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cat $1 | sed -e "s/^/$innerComment/" >> $2
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if test -n "$closeComment"; then
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echo "$closeComment" >> $2
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fi
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head -1 $body | tr '\t' ' ' | grep "^ *$" > /dev/null
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if test $? -eq 1; then
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echo "" >> $2
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fi
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cat $body >> $2
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rm -f $body
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