mirror of
https://github.com/netdata/libbpf.git
synced 2026-11-06 01:40:15 +08:00
Ihor Solodrai
30e2cb8936
Run sync-kernel.sh with stdin from /dev/null, so that any prompt asking for human input fails the sync. The exit code of sync-kernel.sh isn't reliable (e.g., it exits with 0 when interrupted), so tell from its output whether the sync went through or there was nothing to sync. On success, leave a bundle with the sync branch, patches and a pull request description with the sync log in the output directory. Assisted-by: Claude:claude-opus-5-5 Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
108 lines
3.4 KiB
Bash
Executable File
108 lines
3.4 KiB
Bash
Executable File
#!/bin/bash
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#
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# Run scripts/sync-kernel.sh non-interactively: with stdin at EOF, any prompt
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# asking for human input fails the sync. If the sync went through, <out-dir>
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# gets everything needed to publish it: a bundle with the sync branch,
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# patches, and a pull request description including the sync log.
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#
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# Exits with 0 if the sync went through or there was nothing to sync.
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usage () {
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echo "USAGE: $0 <libbpf-repo> <linux-repo> <out-dir>"
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echo ""
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echo "<linux-repo> is expected to be set up by sync-fetch-kernel.sh."
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exit 1
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}
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set -euo pipefail
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if [ $# -ne 3 ]; then
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usage
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fi
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LIBBPF_REPO=$(realpath "$1")
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LINUX_REPO=$(realpath "$2")
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OUT_DIR=$(realpath -m "$3")
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GITHUB_OUTPUT=${GITHUB_OUTPUT:-/dev/null}
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GITHUB_STEP_SUMMARY=${GITHUB_STEP_SUMMARY:-/dev/null}
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# Pull request descriptions are limited to 65536 characters
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PR_LOG_MAX=60000
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cd "${LIBBPF_REPO}"
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base_sha=$(git rev-parse HEAD)
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old_next=$(cat CHECKPOINT-COMMIT)
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old_bpf=$(cat BPF-CHECKPOINT-COMMIT)
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mkdir -p "${OUT_DIR}/tmp"
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# Keep sync-kernel.sh's temporary files around for post-mortem
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export TMPDIR="${OUT_DIR}/tmp"
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log="${OUT_DIR}/sync.log"
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# The exit code of sync-kernel.sh can't be trusted (e.g., it exits with 0 when
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# interrupted), so tell from its output how it went
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"${LIBBPF_REPO}/scripts/sync-kernel.sh" "${LIBBPF_REPO}" "${LINUX_REPO}" bpf-master \
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< /dev/null 2>&1 | tee "${log}" || true
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# Drop progress output overwritten with carriage returns
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sed -i 's/^.*\r//' "${log}"
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if grep -qF 'No new changes to apply, we are done!' "${log}"; then
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echo "::notice::No new libbpf changes since bpf-next ${old_next:0:12} and bpf ${old_bpf:0:12}"
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exit 0
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fi
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if ! grep -qF 'Great! Content is identical!' "${log}"; then
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echo "::error::Sync needs a human, see SYNC.md. The sync log and leftovers are in the run's artifact."
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exit 1
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fi
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branch=$(git symbolic-ref --short HEAD)
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git format-patch -q -o "${OUT_DIR}/patches" "${base_sha}..HEAD"
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git bundle create -q "${OUT_DIR}/sync.bundle" "${base_sha}..refs/heads/${branch}"
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if [ -n "${GITHUB_RUN_ID:-}" ]; then
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origin="[workflow run](${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID})"
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else
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origin="a local run"
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fi
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new_files=$(git diff --name-only --diff-filter=A "${base_sha}" HEAD -- src include)
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{
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echo "Automated libbpf sync from bpf-next and bpf trees, created by ${origin}."
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echo ""
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echo "| Tree | Baseline | Checkpoint |"
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echo "| --- | --- | --- |"
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echo "| bpf-next | ${old_next} | $(cat CHECKPOINT-COMMIT) |"
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echo "| bpf | ${old_bpf} | $(cat BPF-CHECKPOINT-COMMIT) |"
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echo ""
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echo "CI runs for this pull request have to be approved by a maintainer. If CI needs" \
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"adjustments (allow/deny lists, \`ci/diffs\`, \`src/Makefile\`, see SYNC.md), push them to" \
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"this branch."
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if [ -n "${new_files}" ]; then
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echo ""
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echo "New files were synced, check if \`src/Makefile\` needs updating:"
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echo ""
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# shellcheck disable=SC2016
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sed 's/^/- `/; s/$/`/' <<< "${new_files}"
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fi
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echo ""
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echo "<details>"
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echo "<summary>sync-kernel.sh output</summary>"
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echo ""
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echo '````'
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head -c "${PR_LOG_MAX}" "${log}"
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if (($(wc -c < "${log}") > PR_LOG_MAX)); then
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echo ""
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echo "[... truncated, the full log is in the workflow run's artifact ...]"
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fi
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echo '````'
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echo ""
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echo "</details>"
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} > "${OUT_DIR}/pr-body.md"
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cat "${OUT_DIR}/pr-body.md" >> "${GITHUB_STEP_SUMMARY}"
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{
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echo "branch=${branch}"
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echo "head_sha=$(git rev-parse HEAD)"
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} >> "${GITHUB_OUTPUT}"
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echo "Synced $(git rev-list --count "${base_sha}..HEAD") commits into ${branch}"
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