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|
#!/bin/sh -e
#
# minisrc.sh - Extract files needed to build tcsim from an iproute2 tarball
#
# Written 2003,2004 by Werner Almesberger
# Copyright 2003,2004 Werner Almesberger
#
[ -r tcsim/setup.klib ] || {
echo "$0 must be run from the tcng top-level directory" 1>&2
exit 1
}
usage()
{
echo "usage: $0 [-q] path_to/iproute2-x.tar.gz" 1>&2
exit 1
}
if [ "$1" = -q ]; then
quiet=true
shift
else
quiet=false
fi
[ "${1#-}" = "$1" ] || usage
[ ! -z "$1" ] || usage
[ -f "$1" ] || {
echo "no such file: $1" 1>&2
exit 1
}
id=`basename "$1" .tar.gz`
[ "${id#iproute2-}" != "$id" -o "${id#iproute_20}" != "$id" ] || usage
if [ "${id#iproute2-2.6}" == "$id" ]; then
dir=iproute2
else
dir=./`echo $id | sed 's/-[^-]*$//'`
fi
#
# Check if we've already extracted the tree
#
if [ -f $dir/.tarball ] && \
[ "`cat $dir/.tarball`" = "$1" -a "$1" -ot $dir/.tarball ]; then
$quiet || echo "Source tree has already been extracted to $dir"
exit 0
else
rm -f $dir/.tarball
fi
#
# Find out which source files we really need
#
if grep 'ISRC.*ISRC' tcsim/setup.ulib >/dev/null; then
echo 'setup.ulib must not contain lines with more than one use of $ISRC' \
2>&1
exit 1
fi
#
# The 1st substititution extracts anything that is prefixed by $ISRC
# The 2nd substititution removes wildcards
# The 3rd substititution removes empty entries (from the 2nd substitution)
#
IFILES=`sed '/^#/d;/.*$ISRC\/\([][a-zA-Z0-9_\/{},.*-]*\).*/ \
{s//\1/;s/[a-zA-Z0-9_\/.-]*[][*][][a-zA-Z0-9_\/.*-]*[][*]//g;p;};d' \
<tcsim/setup.ulib |
sed 's/,,,*/,/g;s/{,,*/{/g;s/,,*}/}/g;s/{}//g;s/{\([^,]*\)}/\1/g'`
IFILES=`eval echo $IFILES` # expand {...,...}
IFILES="Makefile $IFILES"
IFILES=`echo $IFILES | tr ' ' '\012' | sort | uniq`
#
# Ugly: since not all files may be present, we ignore all errors from tar
# (unfortunately, including ENOSPC, etc.)
#
$quiet || echo "Extracting files from $1 ..."
$quiet || echo '(may yield a few "Not found in archive" messages)'
#
# Since we have wildcards, we need to remove individual files or tar will
# needlessly complain.
#
tar xfz "$1" $dir/include/SNAPSHOT.h \
$dir/'tc/*.[ch]' $dir/'lib/*.[ch]' \
`for n in $IFILES; do \
[ "${n#tc/*.[ch]}" = "" -o "${n#lib/*.[ch]}" = "" ] || echo $dir/$n; \
done` || true
echo "$1" >$dir/.tarball
$quiet || echo "Extracted to ./$dir/"
|
