mirror of
https://github.com/tj-actions/changed-files
synced 2024-09-12 20:10:46 +02:00
303 lines
11 KiB
Bash
303 lines
11 KiB
Bash
#!/usr/bin/env bash
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set -euo pipefail
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INITIAL_COMMIT="false"
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GITHUB_OUTPUT=${GITHUB_OUTPUT:-""}
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EXTRA_ARGS="--no-tags --prune --no-recurse-submodules"
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PREVIOUS_SHA=""
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CURRENT_SHA=""
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DIFF="..."
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if [[ "$GITHUB_REF" == "refs/tags/"* ]]; then
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EXTRA_ARGS="--prune --no-recurse-submodules"
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fi
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if [[ "$GITHUB_EVENT_HEAD_REPO_FORK" == "true" ]]; then
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DIFF=".."
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fi
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echo "::group::changed-files-diff-sha"
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if [[ -n $INPUT_PATH ]]; then
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REPO_DIR="$GITHUB_WORKSPACE/$INPUT_PATH"
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echo "::debug::Resolving repository path: $REPO_DIR"
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if [[ ! -d "$REPO_DIR" ]]; then
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echo "::error::Invalid repository path: $REPO_DIR"
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exit 1
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fi
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cd "$REPO_DIR"
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fi
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function __version() {
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echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }';
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}
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echo "Verifying git version..."
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GIT_VERSION=$(git --version | awk '{print $3}') && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::git not installed"
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exit 1
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fi
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if [[ $(__version "$GIT_VERSION") -lt $(__version "2.18.0") ]]; then
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echo "::error::Invalid git version. Please upgrade ($GIT_VERSION) to >= (2.18.0)"
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exit 1
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else
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echo "Valid git version found: ($GIT_VERSION)"
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fi
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if [[ -z $GITHUB_BASE_REF ]]; then
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echo "Running on a push event..."
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TARGET_BRANCH=$GITHUB_REFNAME
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CURRENT_BRANCH=$TARGET_BRANCH
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echo "::debug::Getting HEAD SHA..."
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if [[ -n "$INPUT_UNTIL" ]]; then
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echo "::debug::Getting HEAD SHA for '$INPUT_UNTIL'..."
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CURRENT_SHA=$(git log -1 --format="%H" --date=local --until="$INPUT_UNTIL") && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Invalid until date: $INPUT_UNTIL"
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exit 1
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fi
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else
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if [[ -z $INPUT_SHA ]]; then
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CURRENT_SHA=$(git rev-list -n 1 HEAD) && exit_status=$? || exit_status=$?
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else
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS -u --progress --deepen="$INPUT_FETCH_DEPTH" origin "$CURRENT_BRANCH" 1>/dev/null 2>&1
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CURRENT_SHA=$INPUT_SHA; exit_status=$?
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fi
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fi
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echo "::debug::Verifying the current commit SHA: $CURRENT_SHA"
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git rev-parse --quiet --verify "$CURRENT_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Unable to locate the current sha: $CURRENT_SHA"
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echo "::error::Please verify that current sha is valid, and increase the fetch_depth to a number higher than $INPUT_FETCH_DEPTH."
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exit 1
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else
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echo "::debug::Current SHA: $CURRENT_SHA"
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fi
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if [[ -z $INPUT_BASE_SHA ]]; then
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if [[ -n "$INPUT_SINCE" ]]; then
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echo "::debug::Getting base SHA for '$INPUT_SINCE'..."
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PREVIOUS_SHA=$(git log --format="%H" --date=local --since="$INPUT_SINCE" | tail -1) && exit_status=$? || exit_status=$?
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if [[ -z "$PREVIOUS_SHA" ]]; then
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echo "::error::Unable to locate a previous commit for the specified date: $INPUT_SINCE"
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exit 1
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fi
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else
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if [[ "$INPUT_SINCE_LAST_REMOTE_COMMIT" == "true" ]]; then
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PREVIOUS_SHA=""
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if [[ "$GITHUB_EVENT_FORCED" == "false" || -z "$GITHUB_EVENT_FORCED" ]]; then
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PREVIOUS_SHA=$GITHUB_EVENT_BEFORE
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fi
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else
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PREVIOUS_SHA=$(git rev-list -n 1 "$TARGET_BRANCH") && exit_status=$? || exit_status=$?
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if [[ -z "$PREVIOUS_SHA" ]]; then
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if [[ "$GITHUB_EVENT_FORCED" == "false" || -z "$GITHUB_EVENT_FORCED" ]]; then
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PREVIOUS_SHA=$GITHUB_EVENT_BEFORE
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fi
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fi
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fi
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if [[ -z "$PREVIOUS_SHA" || "$PREVIOUS_SHA" == "0000000000000000000000000000000000000000" ]]; then
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PREVIOUS_SHA=$(git rev-parse "$(git branch -r --sort=-committerdate | head -1 | xargs)")
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fi
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if [[ "$PREVIOUS_SHA" == "$CURRENT_SHA" ]]; then
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if ! git rev-parse "$PREVIOUS_SHA^1" &>/dev/null; then
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INITIAL_COMMIT="true"
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PREVIOUS_SHA=$(git rev-parse "$CURRENT_SHA")
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echo "::warning::Initial commit detected no previous commit found."
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else
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PREVIOUS_SHA=$(git rev-parse "$PREVIOUS_SHA^1")
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fi
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else
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if [[ -z "$PREVIOUS_SHA" ]]; then
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echo "::error::Unable to locate a previous commit."
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exit 1
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fi
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fi
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fi
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else
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS -u --progress --deepen="$INPUT_FETCH_DEPTH" origin "$CURRENT_BRANCH" 1>/dev/null 2>&1
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PREVIOUS_SHA=$INPUT_BASE_SHA
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fi
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echo "::debug::Target branch $TARGET_BRANCH..."
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echo "::debug::Current branch $CURRENT_BRANCH..."
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echo "::debug::Verifying the previous commit SHA: $PREVIOUS_SHA"
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git rev-parse --quiet --verify "$PREVIOUS_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Unable to locate the previous sha: $PREVIOUS_SHA"
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echo "::error::Please verify that the previous sha commit is valid, and increase the fetch_depth to a number higher than $INPUT_FETCH_DEPTH."
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exit 1
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fi
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else
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echo "Running on a pull request event..."
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TARGET_BRANCH=$GITHUB_BASE_REF
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CURRENT_BRANCH=$GITHUB_HEAD_REF
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if [[ "$INPUT_SINCE_LAST_REMOTE_COMMIT" == "true" ]]; then
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TARGET_BRANCH=$CURRENT_BRANCH
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fi
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echo "Fetching remote refs..."
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if [[ "$INPUT_SINCE_LAST_REMOTE_COMMIT" == "false" ]]; then
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# shellcheck disable=SC2086
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git fetch -u --progress $EXTRA_ARGS --depth="$INPUT_FETCH_DEPTH" origin +refs/heads/"$TARGET_BRANCH":refs/remotes/origin/"$TARGET_BRANCH" 1>/dev/null 2>&1
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git branch --track "$TARGET_BRANCH" origin/"$TARGET_BRANCH" 1>/dev/null 2>&1 || true
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS -u --progress --depth=$(( GITHUB_EVENT_PULL_REQUEST_COMMITS + 1 )) origin +"$GITHUB_REF":refs/remotes/origin/"$CURRENT_BRANCH" 1>/dev/null 2>&1
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COMMON_ANCESTOR=$(git merge-base --fork-point "$TARGET_BRANCH" HEAD) && exit_status=$? || exit_status=$?
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if [[ -z "$COMMON_ANCESTOR" ]]; then
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echo "::debug::Unable to locate a common ancestor for the current branch: $CURRENT_BRANCH"
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else
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echo "::debug::Common ancestor: $COMMON_ANCESTOR"
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DATE=$(git log --date=iso8601 --format=%cd "${COMMON_ANCESTOR}")
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if [[ -z "$DATE" ]]; then
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echo "::error::Unable to locate a date for the common ancestor: $COMMON_ANCESTOR"
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exit 1
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else
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS --shallow-since="${DATE}" origin +refs/heads/"$TARGET_BRANCH":refs/remotes/origin/"$TARGET_BRANCH" 1>/dev/null 2>&1
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echo "::debug::Date: $DATE"
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fi
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fi
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else
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS -u --progress --depth="$INPUT_FETCH_DEPTH" origin +"$GITHUB_REF":refs/remotes/origin/"$CURRENT_BRANCH" 1>/dev/null 2>&1
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fi
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echo "::debug::Getting HEAD SHA..."
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if [[ -n "$INPUT_UNTIL" ]]; then
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echo "::debug::Getting HEAD SHA for '$INPUT_UNTIL'..."
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CURRENT_SHA=$(git log -1 --format="%H" --date=local --until="$INPUT_UNTIL") && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Invalid until date: $INPUT_UNTIL"
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exit 1
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fi
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else
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if [[ -z $INPUT_SHA ]]; then
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CURRENT_SHA=$(git rev-list -n 1 HEAD) && exit_status=$? || exit_status=$?
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else
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CURRENT_SHA=$INPUT_SHA; exit_status=$?
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if [[ "$CURRENT_SHA" == "$GITHUB_EVENT_PULL_REQUEST_HEAD_SHA" ]]; then
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CURRENT_SHA=$(git rev-list -n 1 HEAD) && exit_status=$? || exit_status=$?
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fi
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fi
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fi
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echo "::debug::Verifying the current commit SHA: $CURRENT_SHA"
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git rev-parse --quiet --verify "$CURRENT_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Unable to locate the current sha: $CURRENT_SHA"
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echo "::error::Please verify that current sha is valid, and increase the fetch_depth to a number higher than $INPUT_FETCH_DEPTH."
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exit 1
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else
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echo "::debug::Current SHA: $CURRENT_SHA"
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fi
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if [[ -z $INPUT_BASE_SHA ]]; then
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if [[ "$INPUT_SINCE_LAST_REMOTE_COMMIT" == "true" ]]; then
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PREVIOUS_SHA=$GITHUB_EVENT_BEFORE
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else
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PREVIOUS_SHA=$GITHUB_EVENT_PULL_REQUEST_BASE_SHA
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if ! git diff --name-only --ignore-submodules=all "$PREVIOUS_SHA$DIFF$CURRENT_SHA" 1>/dev/null 2>&1; then
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PREVIOUS_SHA=$(git merge-base --fork-point "$TARGET_BRANCH" "$CURRENT_SHA") && exit_status=$? || exit_status=$?
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fi
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fi
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if [[ -z "$PREVIOUS_SHA" || "$PREVIOUS_SHA" == "$CURRENT_SHA" ]]; then
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PREVIOUS_SHA=$GITHUB_EVENT_PULL_REQUEST_BASE_SHA && exit_status=$? || exit_status=$?
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fi
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echo "::debug::Previous SHA: $PREVIOUS_SHA"
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else
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PREVIOUS_SHA=$INPUT_BASE_SHA && exit_status=$? || exit_status=$?
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fi
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if [[ "$INPUT_SINCE_LAST_REMOTE_COMMIT" == "false" ]]; then
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if [[ -f .git/shallow ]]; then
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depth=$INPUT_FETCH_DEPTH
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max_depth=$INPUT_MAX_FETCH_DEPTH
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for ((i=0; i<max_depth; i+=depth * 2)); do
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if git diff --name-only --ignore-submodules=all "$PREVIOUS_SHA$DIFF$CURRENT_SHA" 1>/dev/null 2>&1; then
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break
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fi
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echo "Fetching $i commits..."
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# shellcheck disable=SC2086
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git fetch $EXTRA_ARGS -u --progress --deepen="$i" origin $TARGET_BRANCH $CURRENT_SHA 1>/dev/null 2>&1
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done
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if ((i >= max_depth)); then
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echo "::error::Unable to locate a common ancestor between $TARGET_BRANCH and $CURRENT_BRANCH with: $PREVIOUS_SHA$DIFF$CURRENT_SHA"
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exit 1
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fi
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else
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echo "::debug::Not a shallow clone, skipping merge-base check."
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fi
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fi
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echo "::debug::Target branch: $TARGET_BRANCH"
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echo "::debug::Current branch: $CURRENT_BRANCH"
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echo "::debug::Verifying the previous commit SHA: $PREVIOUS_SHA"
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git rev-parse --quiet --verify "$PREVIOUS_SHA^{commit}" 1>/dev/null 2>&1 && exit_status=$? || exit_status=$?
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if [[ $exit_status -ne 0 ]]; then
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echo "::error::Unable to locate the previous sha: $PREVIOUS_SHA"
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echo "::error::Please verify that the previous sha is valid, and increase the fetch_depth to a number higher than $INPUT_FETCH_DEPTH."
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exit 1
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fi
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fi
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if [[ "$PREVIOUS_SHA" == "$CURRENT_SHA" && "$INITIAL_COMMIT" == "false" ]]; then
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echo "::error::Similar commit hashes detected: previous sha: $PREVIOUS_SHA is equivalent to the current sha: $CURRENT_SHA."
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echo "::error::Please verify that both commits are valid, and increase the fetch_depth to a number higher than $INPUT_FETCH_DEPTH."
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exit 1
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fi
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if [[ -z "$GITHUB_OUTPUT" ]]; then
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echo "::set-output name=target_branch::$TARGET_BRANCH"
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echo "::set-output name=current_branch::$CURRENT_BRANCH"
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echo "::set-output name=previous_sha::$PREVIOUS_SHA"
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echo "::set-output name=current_sha::$CURRENT_SHA"
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else
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cat <<EOF >> "$GITHUB_OUTPUT"
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target_branch=$TARGET_BRANCH
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current_branch=$CURRENT_BRANCH
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previous_sha=$PREVIOUS_SHA
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current_sha=$CURRENT_SHA
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EOF
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fi
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echo "::endgroup::"
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