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#!/bin/bash
# (c) 2009 - 2012 Koen Kooi <koen@dominion.thruhere.net>
# (c) 2012 Robert Nelson <robertcnelson@gmail.com>
# This script will take a set of directories with patches and make a git tree out of it
# After all the patches are applied it will output a SRC_URI fragment you can copy/paste into a recipe
set -e
# don't use builtin 'echo' from /bin/sh
export ECHO="$(which echo)"
DIR="$PWD"
PATCHPATH="${DIR}/patches"
EXPORTPATH="${DIR}/export"
#For TAG, use mainline Kernel tags
TAG="v3.2"
EXTRATAG=""
#EXTERNAL_TREE="git://arago-project.org/git/projects/linux-am33x.git"
#EXTERNAL_BRANCH="v3.2-staging"
#EXTERNAL_SHA="e8004dad869568692ca2a45c04e8464ce48cc4d7"
PATCHSET="dirs"
git_kernel_stable () {
git pull git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git master --tags || true
}
git_pull_torvalds () {
git pull git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --tags || true
#Maybe, we need a stable tag '3.0.2'?
git tag | grep ${TAG} >/dev/null || git_kernel_stable
}
if [ ! -d ${DIR}/kernel ] ; then
mkdir -p ${DIR}/kernel
fi
cd ${DIR}/kernel
if [ ! -f ./.git/config ] ; then
git clone git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git .
else
git fetch
fi
git am --abort || echo "Do you need to make sure the patches apply cleanly first?"
# Always return to master, and remove patched branch...
git reset --hard
git checkout master -f
git describe
git branch -D tmp-patching-branch &>/dev/null || true
git branch -D tmp-patching-branch-sha &>/dev/null || true
#Do we have the tag?
git tag | grep ${TAG} | grep -v rc >/dev/null || git_pull_torvalds
git checkout -f ${TAG} -b tmp-patching-branch
if [ "${EXTERNAL_TREE}" ] ; then
#we are pulling the external tree into 1st branch, and checkout the SHA into a 2nd,
#which saves a little pain in cleaning up master, when switching between different beagleboard branches
git pull ${EXTERNAL_TREE} ${EXTERNAL_BRANCH}
git checkout ${EXTERNAL_SHA} -b tmp-patching-branch-sha
fi
git describe
if [ -d ${EXPORTPATH} ] ; then
rm -rf ${EXPORTPATH} || true
fi
# apply patches
for patchset in ${PATCHSET} ; do
mkdir -p ${EXPORTPATH}/$patchset
patchcount=0
for patch in $(ls -1 ${PATCHPATH}/$patchset/*.patch | sort -n) ; do
$ECHO -n "$patch: "
git am -q $patch && echo applied || exit 1
let patchcount=$patchcount+1
done
git format-patch -${patchcount} --quiet -o ${EXPORTPATH}/$patchset
git commit --allow-empty -a -m "${TAG}-${patchset}${EXTRATAG}"
done
if [ -f ${DIR}/src-uri.txt ] ; then
rm -rf ${DIR}/src-uri.txt || true
fi
if [ -f ${DIR}/patch_script.sh ] ; then
rm -rf ${DIR}/patch_script.sh || true
fi
# export patches and output SRC_URI for them
for patchset in ${PATCHSET} ; do
for patch in $(ls -1 ${EXPORTPATH}/$patchset/*.patch | sort -n) ; do
patch=${patch##*/}
echo " file://${patchset}/$patch \\" >> ${DIR}/src-uri.txt
echo " git am \"\${DIR}/patches/${patchset}/$patch\"" >> ${DIR}/patch_script.sh
done
done
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