Add changed_charts and chart_version outputs (#130)
* Add `changed_charts` and `chart_version` outputs This should let downstream steps make conditional decisions based on what we found. Also: fix a confusing double-negative test in main(). Signed-off-by: Nathan J. Mehl <n@oden.io> --------- Signed-off-by: Nathan J. Mehl <n@oden.io>
This commit is contained in:
Nathan J Mehl
@@ -21,6 +21,11 @@ A GitHub action to turn a GitHub project into a self-hosted Helm chart repo, usi
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- `skip_packaging`: This option, when populated, will skip the packaging step. This allows you to do more advanced packaging of your charts (for example, with the `helm package` command) before this action runs. This action will only handle the indexing and publishing steps.
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- `mark_as_latest`: When you set this to `false`, it will mark the created GitHub release not as 'latest'.
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### Outputs
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- `changed_charts`: A comma-separated list of charts that were released on this run. Will be an empty string if no updates were detected, will be unset if `--skip_packaging` is used: in the latter case your custom packaging step is responsible for setting its own outputs if you need them.
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- `chart_version`: The version of the most recently generated charts; will be set even if no charts have been updated since the last run.
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### Environment variables
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- `CR_TOKEN` (required): The GitHub token of this repository (`${{ secrets.GITHUB_TOKEN }}`)
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+17
-1
@@ -32,11 +32,19 @@ inputs:
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description: Mark the created GitHub release as 'latest'
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required: false
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default: true
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outputs:
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changed_charts:
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description: "A comma-separated list of charts that were released on this run. Will be an empty string if no updates were detected, will be unset if `--skip_packaging` is used: in the latter case your custom packaging step is responsible for setting its own outputs if you need them."
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value: ${{ steps.release.outputs.changed_charts }}
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chart_version:
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description: "The version of the most recently generated charts; will be set even if no charts have been updated since the last run."
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value: ${{ steps.release.outputs.chart_version }}
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runs:
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using: composite
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steps:
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- run: |
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- id: release
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run: |
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owner=$(cut -d '/' -f 1 <<< "$GITHUB_REPOSITORY")
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repo=$(cut -d '/' -f 2 <<< "$GITHUB_REPOSITORY")
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@@ -77,4 +85,12 @@ runs:
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fi
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"$GITHUB_ACTION_PATH/cr.sh" "${args[@]}"
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if [[ -f changed_charts.txt ]]; then
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cat changed_charts.txt >> "$GITHUB_OUTPUT"
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fi
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if [[ -f chart_version.txt ]]; then
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cat chart_version.txt >> "$GITHUB_OUTPUT"
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fi
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rm -f changed_charts.txt chart_version.txt
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shell: bash
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@@ -21,7 +21,7 @@ set -o pipefail
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DEFAULT_CHART_RELEASER_VERSION=v1.6.0
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show_help() {
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cat << EOF
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cat <<EOF
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Usage: $(basename "$0") <options>
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-h, --help Display help
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@@ -56,16 +56,16 @@ main() {
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local repo_root
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repo_root=$(git rev-parse --show-toplevel)
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pushd "$repo_root" > /dev/null
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pushd "$repo_root" >/dev/null
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if ! [[ -n "$skip_packaging" ]]; then
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if [[ -z "$skip_packaging" ]]; then
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echo 'Looking up latest tag...'
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local latest_tag
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latest_tag=$(lookup_latest_tag)
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echo "Discovering changed charts since '$latest_tag'..."
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local changed_charts=()
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readarray -t changed_charts <<< "$(lookup_changed_charts "$latest_tag")"
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readarray -t changed_charts <<<"$(lookup_changed_charts "$latest_tag")"
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if [[ -n "${changed_charts[*]}" ]]; then
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install_chart_releaser
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@@ -80,14 +80,19 @@ main() {
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if [[ -d "$chart" ]]; then
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package_chart "$chart"
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else
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echo "Chart '$chart' no longer exists in repo. Skipping it..."
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echo "Nothing to do. No chart changes detected."
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fi
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done
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release_charts
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update_index
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echo "changed_charts=$(
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IFS=,
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echo "${changed_charts[*]}"
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)" >changed_charts.txt
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else
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echo "Nothing to do. No chart changes detected."
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echo "changed_charts=" >changed_charts.txt
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fi
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else
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install_chart_releaser
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@@ -97,13 +102,15 @@ main() {
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update_index
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fi
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popd > /dev/null
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echo "chart_version=${latest_tag}" >chart_version.txt
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popd >/dev/null
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}
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parse_command_line() {
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while :; do
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case "${1:-}" in
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-h|--help)
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-h | --help)
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show_help
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exit
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;;
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@@ -117,7 +124,7 @@ parse_command_line() {
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exit 1
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fi
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;;
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-v|--version)
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-v | --version)
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if [[ -n "${2:-}" ]]; then
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version="$2"
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shift
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@@ -127,7 +134,7 @@ parse_command_line() {
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exit 1
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fi
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;;
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-d|--charts-dir)
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-d | --charts-dir)
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if [[ -n "${2:-}" ]]; then
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charts_dir="$2"
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shift
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@@ -137,7 +144,7 @@ parse_command_line() {
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exit 1
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fi
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;;
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-o|--owner)
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-o | --owner)
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if [[ -n "${2:-}" ]]; then
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owner="$2"
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shift
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@@ -147,7 +154,7 @@ parse_command_line() {
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exit 1
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fi
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;;
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-r|--repo)
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-r | --repo)
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if [[ -n "${2:-}" ]]; then
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repo="$2"
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shift
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@@ -157,19 +164,19 @@ parse_command_line() {
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exit 1
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fi
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;;
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-n|--install-dir)
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-n | --install-dir)
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if [[ -n "${2:-}" ]]; then
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install_dir="$2"
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shift
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fi
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;;
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-i|--install-only)
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-i | --install-only)
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if [[ -n "${2:-}" ]]; then
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install_only="$2"
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shift
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fi
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;;
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-s|--skip-packaging)
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-s | --skip-packaging)
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if [[ -n "${2:-}" ]]; then
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skip_packaging="$2"
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shift
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@@ -181,7 +188,7 @@ parse_command_line() {
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shift
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fi
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;;
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-l|--mark-as-latest)
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-l | --mark-as-latest)
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if [[ -n "${2:-}" ]]; then
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mark_as_latest="$2"
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shift
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@@ -240,9 +247,9 @@ install_chart_releaser() {
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}
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lookup_latest_tag() {
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git fetch --tags > /dev/null 2>&1
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git fetch --tags >/dev/null 2>&1
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if ! git describe --tags --abbrev=0 HEAD~ 2> /dev/null; then
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if ! git describe --tags --abbrev=0 HEAD~ 2>/dev/null; then
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git rev-list --max-parents=0 --first-parent HEAD
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fi
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}
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@@ -265,10 +272,10 @@ lookup_changed_charts() {
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local changed_files
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changed_files=$(git diff --find-renames --name-only "$commit" -- "$charts_dir")
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local depth=$(( $(tr "/" "\n" <<< "$charts_dir" | sed '/^\(\.\)*$/d' | wc -l) + 1 ))
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local depth=$(($(tr "/" "\n" <<<"$charts_dir" | sed '/^\(\.\)*$/d' | wc -l) + 1))
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local fields="1-${depth}"
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cut -d '/' -f "$fields" <<< "$changed_files" | uniq | filter_charts
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cut -d '/' -f "$fields" <<<"$changed_files" | uniq | filter_charts
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}
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package_chart() {
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