#!/bin/rc
# Copyright 2009 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

OUT='mk.deps'
TMP='mk.deps.tmp'

if(test -f $OUT && ! test -w $OUT){
	echo $0: $OUT 'is read-only; aborting.' >[1=2]
	exit 1
}

# Get list of directories from Makefile
dirs=`{sed '1,/^DIRS=/d; /^$/,$d; s/\\//g' mkfile}
dirpat=`{echo $dirs | sed 's/ /|/g; s/.*/^(&)$/'}

wd=`{pwd}

{
for(dir in $dirs){
	cd $dir || exit 1

	sources=`{sed -n 's/\.go\\/.go/p' mkfile}

	sources=`{ls $sources >[2] /dev/null}  # remove .s, .c, etc.

	deps=`{
		sed -n '/^import.*"/p; /^import[ \t]*\(/,/^\)/p' $sources /dev/null |
		sed 's/[ 	;"\(\)]/\n/g' |
		sed '/^$/d' |
		grep $dirpat |
		grep -v '^'^$dir^'$' |
		sed 's/$/.install/' |
		sort -u
	}

	echo $dir.install: $deps
	cd $wd
}
} > $TMP

mv $TMP $OUT