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Buildkite: install libyaml-perl when missing on PR agents #3353

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Merged
reakaleek merged 1 commit into from
Aug 7, 2026
+9 −0
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Buildkite: install libyaml-perl when missing on PR agents #3353

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9 changes: 9 additions & 0 deletions .buildkite/scripts/build_pr.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -51,6 +51,15 @@ if [[ "${GITHUB_PR_BASE_REPO}" != 'docs' ]]; then
exit 0
fi

# legacy_branches.pl needs YAML.pm on the host agent (not the Docker build
# image). Install it when missing so a stale docs-ubuntu image does not
# fail open and force a full clone/build for non-legacy branches.
if ! perl -MYAML -e1 >/dev/null 2>&1; then
echo "Perl YAML module missing on agent; installing libyaml-perl"
sudo apt-get update -qq
sudo apt-get install -y -qq libyaml-perl
fi

# Build only if conf.yaml lists the target branch as a legacy AsciiDoc branch
# for this repo — otherwise skip but report success, since docs-build-pr is a
# required check and we want it green rather than failing or left pending.
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