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sync: make patch applying interactive, allow to ignore consistency

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Give more control over patching process to allow manual intervention and
fix up, after which process will continue. Also allow an option to
ignore consistency check results (when having both bpf and bpf-next
changes).

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
This commit is contained in:
Andrii Nakryiko
2019-08-08 22:07:01 -07:00
committed by Andrii Nakryiko
parent 2c0e53cb08
commit 3e45a16621
1 changed files with 25 additions and 11 deletions
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36
scripts/sync-kernel.sh
View File

@@ -4,7 +4,8 @@ usage () {
echo "USAGE: ./sync-kernel.sh <kernel-repo> <libbpf-repo> [<baseline-commit>]"
echo ""
echo "If <baseline-commit> is not specified, it's read from <libbpf-repo>/CHECKPOINT-COMMIT."
echo "Set MANUAL_MODE envvar to 1 to manually control every cherry-picked commita."
echo "Set MANUAL_MODE envvar to 1 to manually control every cherry-picked commits."
echo "Set IGNORE_CONSISTENCY envvar to 1 to ignore failed final contents consistency check."
exit 1
}
@@ -43,7 +44,7 @@ LIBBPF_TREE_FILTER="mkdir -p __libbpf/include/uapi/linux __libbpf/include/tools
for p in "${!PATH_MAP[@]}"; do
LIBBPF_TREE_FILTER+="git mv -kf ${p} __libbpf/${PATH_MAP[${p}]} && "$'\\\n'
done
LIBBPF_TREE_FILTER+="git rm --ignore-unmatch -f __libbpf/src/{Makefile,Build,test_libbpf.cpp,.gitignore}"
LIBBPF_TREE_FILTER+="git rm --ignore-unmatch -f __libbpf/src/{Makefile,Build,test_libbpf.cpp,.gitignore} >/dev/null"
cd_to()
{
@@ -147,7 +148,7 @@ cherry_pick_commits()
echo "Looks like only non-libbpf files have conflicts, ignoring..."
git add .
# GIT_EDITOR=true to avoid editor popping up to edit commit message
if ! GIT_EDITOR=true git cherry-pick --continue; then
if ! GIT_EDITOR=true git cherry-pick --continue &>/dev/null; then
echo "Error! That still failed! Please resolve manually."
else
echo "Success! All cherry-pick conflicts were resolved for '${desc}'!"
@@ -200,8 +201,7 @@ echo "SQUASH BASE TAG: ${SQUASH_BASE_TAG}"
echo "SQUASH TIP TAG: ${SQUASH_TIP_TAG}"
echo "VIEW TAG: ${VIEW_TAG}"
echo "LIBBPF SYNC TAG: ${LIBBPF_SYNC_TAG}"
echo "PATCHES+COVER: ${TMP_DIR}/patches"
echo "PATCHSET: ${TMP_DIR}/patchset.patch"
echo "PATCHES: ${TMP_DIR}/patches"
git branch ${BASELINE_TAG} ${BASELINE_COMMIT}
git branch ${TIP_TAG} ${TIP_COMMIT}
@@ -228,13 +228,16 @@ fi
# Exclude baseline commit and generate nice cover letter with summary
git format-patch ${SQUASH_BASE_TAG}..${SQUASH_TIP_TAG} --cover-letter -o ${TMP_DIR}/patches
# Now generate single-file patchset w/o cover to apply on top of libbpf repo
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
# Now is time to re-apply libbpf-related linux patches to libbpf repo
cd_to ${LIBBPF_REPO}
git checkout -b ${LIBBPF_SYNC_TAG}
git am --committer-date-is-author-date ${TMP_DIR}/patchset.patch
for patch in $(ls -1 ${TMP_DIR}/patches | tail -n +2); do
if ! git am --committer-date-is-author-date "${TMP_DIR}/patches/${patch}"; then
read -p "Applying ${TMP_DIR}/patches/${patch} failed, please resolve manually and press <return> to proceed..."
fi
done
# Use generated cover-letter as a template for "sync commit" with
# baseline and checkpoint commits from kernel repo (and leave summary
@@ -268,10 +271,21 @@ git ls-files -- ${LIBBPF_VIEW_PATHS[@]} | grep -v -E "${LIBBPF_VIEW_EXCLUDE_REGE
echo "Comparing list of files..."
diff ${TMP_DIR}/linux-view.ls ${TMP_DIR}/github-view.ls
echo "Comparing file contents..."
CONSISTENT=1
for F in $(cat ${TMP_DIR}/linux-view.ls); do
diff "${LINUX_ABS_DIR}/${F}" "${GITHUB_ABS_DIR}/${F}"
if ! diff "${LINUX_ABS_DIR}/${F}" "${GITHUB_ABS_DIR}/${F}"; then
echo "${LINUX_ABS_DIR}/${F} and ${GITHUB_ABS_DIR}/${F} are different!"
CONSISTENT=0
fi
done
echo "Contents appear identical!"
if ((${CONSISTENT} == 1)); then
echo "Great! Content is identical!"
else
echo "Unfortunately, there are consistency problems!"
if ((${IGNORE_CONSISTENCY} != 1)); then
exit 4
fi
fi
echo "Cleaning up..."
rm -r ${TMP_DIR}