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apidiff: default from prowjob env if available, default before doing anything else

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This commit is contained in:
Benjamin Elder 2024-12-12 09:26:39 -08:00
parent 99544a3fc3
commit 8fce9b0db6
1 changed files with 27 additions and 16 deletions
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43
hack/apidiff.sh
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@ -79,6 +79,33 @@ while getopts "r:t:b:" o; do
done
shift $((OPTIND - 1))
# default from prow env if unset from args
# https://docs.prow.k8s.io/docs/jobs/#job-environment-variables
# TODO: handle batch PR testing
if [[ -z "${target:-}" && -n "${PULL_PULL_SHA:-}" ]]; then
target="${PULL_PULL_SHA}"
fi
# target must be a something that git can resolve to a commit.
# "git rev-parse --verify" checks that and prints a detailed
# error.
if [[ -n "${target}" ]]; then
target="$(git rev-parse --verify "${target}")"
fi
if [[ -z "${base}" && -n "${PULL_BASE_SHA:-}" && -n "${PULL_PULL_SHA:-}" ]]; then
if ! base="$(git merge-base "${PULL_BASE_SHA}" "${PULL_PULL_SHA}")"; then
echo >&2 "Failed to detect base revision correctly with prow environment variables."
exit 1
fi
elif [[ -z "${base}" ]]; then
if ! base="$(git merge-base origin/master "${target:-HEAD}")"; then
echo >&2 "Could not determine default base revision. -r must be used explicitly."
exit 1
fi
fi
base="$(git rev-parse --verify "${base}")"
# Check specific directory or everything.
targets=("$@")
if [ ${#targets[@]} -eq 0 ]; then
@ -93,22 +120,6 @@ if [ ${#targets[@]} -eq 0 ]; then
done
fi
# Must be a something that git can resolve to a commit.
# "git rev-parse --verify" checks that and prints a detailed
# error.
if [ -n "${target}" ]; then
target="$(git rev-parse --verify "${target}")"
fi
# Determine defaults.
if [ -z "${base}" ]; then
if ! base="$(git merge-base origin/master "${target:-HEAD}")"; then
echo >&2 "Could not determine default base revision. -r must be used explicitly."
exit 1
fi
fi
base="$(git rev-parse --verify "${base}")"
# Give some information about what's happening. Failures from "git describe" are ignored
# silently, that's optional information.
describe () {