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sync: extract directory changing function

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Extract the logic of handling relative paths within the script into
go_to() function.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
This commit is contained in:
Andrii Nakryiko
2019-08-08 15:18:31 -07:00
committed by Andrii Nakryiko
parent 342bcfa319
commit 97ecda3b25
1 changed files with 13 additions and 8 deletions
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21
scripts/sync-kernel.sh
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@@ -44,6 +44,11 @@ LIBBPF_TREE_FILTER+="git rm --ignore-unmatch -f __libbpf/src/{Makefile,Build,tes
WORKDIR=$(pwd)
trap "cd ${WORKDIR}; exit" INT TERM EXIT
cd_to()
{
cd ${WORKDIR} && cd "$1"
}
echo "WORKDIR: ${WORKDIR}"
echo "LINUX REPO: ${LINUX_REPO}"
echo "LIBBPF REPO: ${LIBBPF_REPO}"
@@ -52,7 +57,7 @@ SUFFIX=$(date --utc +%Y-%m-%dT%H-%M-%S.%3NZ)
BASELINE_COMMIT=${3-$(cat ${LIBBPF_REPO}/CHECKPOINT-COMMIT)}
# Use current kernel repo HEAD as a source of patches
cd ${LINUX_REPO}
cd_to ${LINUX_REPO}
TIP_SYM_REF=$(git symbolic-ref -q --short HEAD || git rev-parse HEAD)
TIP_COMMIT=$(git rev-parse HEAD)
BASELINE_TAG=libbpf-baseline-${SUFFIX}
@@ -97,9 +102,9 @@ for LIBBPF_NEW_MERGE in ${LIBBPF_NEW_MERGES}; do
fi
done
cd ${WORKDIR} && cd ${LIBBPF_REPO}
cd_to ${LIBBPF_REPO}
git log --oneline -n500 > ${TMP_DIR}/libbpf_commits.txt
cd ${WORKDIR} && cd ${LINUX_REPO}
cd_to ${LINUX_REPO}
LIBBPF_NEW_COMMITS=$(git rev-list --no-merges --topo-order --reverse ${BASELINE_TAG}..${TIP_TAG} ${LIBBPF_PATHS[@]})
for LIBBPF_NEW_COMMIT in ${LIBBPF_NEW_COMMITS}; do
@@ -142,7 +147,7 @@ git format-patch ${SQUASH_BASE_TAG}..${SQUASH_TIP_TAG} --cover-letter -o ${TMP_D
git format-patch ${SQUASH_BASE_TAG}..${SQUASH_TIP_TAG} --stdout > ${TMP_DIR}/patchset.patch
# Now is time to re-apply libbpf-related linux patches to libbpf repo
cd ${WORKDIR} && cd ${LIBBPF_REPO}
cd_to ${LIBBPF_REPO}
git checkout -b ${LIBBPF_SYNC_TAG}
git am --committer-date-is-author-date ${TMP_DIR}/patchset.patch
@@ -164,14 +169,14 @@ echo "SUCCESS! ${COMMIT_CNT} commits synced."
echo "Verifying Linux's and Github's libbpf state"
cd ${WORKDIR} && cd ${LINUX_REPO}
cd_to ${LINUX_REPO}
LINUX_ABS_DIR=$(pwd)
git checkout -b ${VIEW_TAG} ${TIP_COMMIT}
git filter-branch -f --tree-filter "${LIBBPF_TREE_FILTER}" ${VIEW_TAG}^..${VIEW_TAG}
git filter-branch -f --subdirectory-filter __libbpf ${VIEW_TAG}^..${VIEW_TAG}
git ls-files -- ${LIBBPF_VIEW_PATHS[@]} > ${TMP_DIR}/linux-view.ls
cd ${WORKDIR} && cd ${LIBBPF_REPO}
cd_to ${LIBBPF_REPO}
GITHUB_ABS_DIR=$(pwd)
git ls-files -- ${LIBBPF_VIEW_PATHS[@]} | grep -v -E "${LIBBPF_VIEW_EXCLUDE_REGEX}" > ${TMP_DIR}/github-view.ls
@@ -185,10 +190,10 @@ echo "Contents appear identical!"
echo "Cleaning up..."
rm -r ${TMP_DIR}
cd ${WORKDIR} && cd ${LINUX_REPO}
cd_to ${LINUX_REPO}
git checkout ${TIP_SYM_REF}
git branch -D ${BASELINE_TAG} ${TIP_TAG} ${SQUASH_BASE_TAG} ${SQUASH_TIP_TAG} ${VIEW_TAG}
cd ${WORKDIR}
cd_to .
echo "DONE."