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changed-files/diff-sha.sh
2022-05-14 21:29:27 -04:00

94 lines
3.5 KiB
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#!/usr/bin/env bash
set -eu
echo "::group::changed-files-diff-sha"
echo "Resolving repository path..."
if [[ -n $INPUT_PATH ]]; then
REPO_DIR="$GITHUB_WORKSPACE/$INPUT_PATH"
if [[ ! -d "$REPO_DIR" ]]; then
echo "::warning::Invalid repository path"
exit 1
fi
cd "$REPO_DIR"
fi
echo "Getting HEAD SHA..."
if [[ -z $INPUT_SHA ]]; then
CURRENT_SHA=$(git rev-list --no-merges -n 1 HEAD 2>&1) && exit_status=$? || exit_status=$?
else
CURRENT_SHA=$INPUT_SHA && exit_status=$? || exit_status=$?
fi
git rev-parse --quiet --verify "$CURRENT_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
if [[ $exit_status -ne 0 ]]; then
echo "::warning::Unable to locate the current sha: $CURRENT_SHA"
echo "::warning::You seem to be missing 'fetch-depth: 0' or 'fetch-depth: 2'. See https://github.com/tj-actions/changed-files#usage"
exit 1
fi
if [[ -z $GITHUB_BASE_REF ]]; then
TARGET_BRANCH=${GITHUB_REF/refs\/heads\//}
CURRENT_BRANCH=$TARGET_BRANCH
if [[ -z $INPUT_BASE_SHA ]]; then
git fetch --no-tags -u --progress --depth=2 origin "${CURRENT_BRANCH}":"${CURRENT_BRANCH}" &&
exit_status=$? || exit_status=$?
if [[ $(git rev-list --count HEAD) -gt 1 ]]; then
PREVIOUS_SHA=$(git rev-list --no-merges -n 1 HEAD^1 2>&1) && exit_status=$? || exit_status=$?
else
PREVIOUS_SHA=$CURRENT_SHA && exit_status=$? || exit_status=$?
echo "Initial commit detected"
fi
else
PREVIOUS_SHA=$INPUT_BASE_SHA && exit_status=$? || exit_status=$?
TARGET_BRANCH=$(git name-rev --name-only "$PREVIOUS_SHA" 2>&1) && exit_status=$? || exit_status=$?
fi
git rev-parse --quiet --verify "$PREVIOUS_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
if [[ $exit_status -ne 0 ]]; then
echo "::warning::Unable to locate the previous sha: $PREVIOUS_SHA"
echo "::warning::You seem to be missing 'fetch-depth: 0' or 'fetch-depth: 2'. See https://github.com/tj-actions/changed-files#usage"
exit 1
fi
else
TARGET_BRANCH=$GITHUB_BASE_REF
CURRENT_BRANCH=$GITHUB_HEAD_REF
if [[ -z $INPUT_BASE_SHA ]]; then
if [[ "$INPUT_USE_FORK_POINT" == "true" ]]; then
echo "Getting fork point..."
git fetch --no-tags -u --progress origin "${TARGET_BRANCH}":"${TARGET_BRANCH}" && exit_status=$? || exit_status=$?
PREVIOUS_SHA=$(git merge-base --fork-point "${TARGET_BRANCH}" "$(git name-rev --name-only "$CURRENT_SHA")") && exit_status=$? || exit_status=$?
else
git fetch --no-tags -u --progress origin --depth=1 "${TARGET_BRANCH}":"${TARGET_BRANCH}" && exit_status=$? || exit_status=$?
PREVIOUS_SHA=$(git rev-list --no-merges -n 1 "${TARGET_BRANCH}" 2>&1) && exit_status=$? || exit_status=$?
fi
else
git fetch --no-tags -u --progress origin --depth=1 "$INPUT_BASE_SHA" && exit_status=$? || exit_status=$?
PREVIOUS_SHA=$INPUT_BASE_SHA
TARGET_BRANCH=$(git name-rev --name-only "$PREVIOUS_SHA" 2>&1) && exit_status=$? || exit_status=$?
fi
echo "Verifying commit SHA..."
git rev-parse --quiet --verify "$PREVIOUS_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
if [[ $exit_status -ne 0 ]]; then
echo "::warning::Unable to locate the previous sha: $PREVIOUS_SHA"
echo "::warning::You seem to be missing 'fetch-depth: 0' or 'fetch-depth: 2'. See https://github.com/tj-actions/changed-files#usage"
exit 1
fi
fi
echo "::set-output name=target_branch::$TARGET_BRANCH"
echo "::set-output name=current_branch::$CURRENT_BRANCH"
echo "::set-output name=previous_sha::$PREVIOUS_SHA"
echo "::set-output name=current_sha::$CURRENT_SHA"
echo "::endgroup::"