kernel-source/compute-PATCHVERSION.sh

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#! /bin/bash
export LANG=POSIX
path=(.)
while test $# -gt 0; do
case "$1" in
--patches)
path[${#path[@]}]=$2
shift 2
;;
*)
echo "Usage $0 [--patches <dir>]" >&2
exit 1
esac
done
if test "${path[*]}" = "."; then
path=(. ..)
fi
source $(dirname $0)/config.sh
set -- $(echo $SRCVERSION | sed -rn 's/([0-9]+)\.([0-9]+)\.([0-9]+)(.*)/\1 \2 \3 \4/p')
VERSION=$1
PATCHLEVEL=$2
SUBLEVEL=$3
EXTRAVERSION=$4
EXTRA_SYMBOLS=$(set -- $([ -e $(dirname $0)/extra-symbols ] && cat $(dirname $0)/extra-symbols) ; echo $*)
series=$(mktemp)
tmp_files="$series"
trap 'rm -rf $tmp_files' EXIT
warned=false
while read patch; do
dir=${patch%/*}
for p in "${path[@]}"; do
if test -d "$p/$dir"; then
echo "$p/$patch"
continue 2
fi
done
for p in "${path[@]}"; do
if test -e "$p/$dir.tar.bz2"; then
echo "unpacking $p/$dir.tar.bz2" >&2
if ! $warned; then
echo "pass --patches <directory with unpacked tarballs> to avoid this" >&2
warned=true
fi
tmp_files="$tmp_files $dir"
tar -xjf "$p/$dir.tar.bz2"
echo "$patch"
continue 2
fi
done
echo "Can't find $patch" >&2
exit 1
done >"$series" < <($(dirname $0)/guards $EXTRA_SYMBOLS <series.conf)
# Parse all the changes to KERNELRELEASE out of all patches and
# convert them to shell code that can be evaluated. Evaluate it.
eval "$(
<"$series" xargs awk '
/^--- |^\+\+\+ / \
{ M = match($2, /^[^\/]+\/Makefile( \t|$)/) }
M && /^+(VERSION|PATCHLEVEL|SUBLEVEL|EXTRAVERSION)/ \
{ print }
' \
| sed -e 's,^+,,' -e 's, *= *\(.*\),="\1",'
)"
echo "$VERSION.$PATCHLEVEL.$SUBLEVEL$EXTRAVERSION"