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debug sync chart
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@woodgear
woodgear committed Jan 9, 2024
1 parent 1d9d741 commit 886ce62
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359 changes: 359 additions & 0 deletions .github/cr.sh
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#!/usr/bin/env bash

# Copyright The Helm Authors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -o errexit
set -o nounset
set -o pipefail

DEFAULT_CHART_RELEASER_VERSION=v1.6.1

show_help() {
cat <<EOF
Usage: $(basename "$0") <options>
-h, --help Display help
-v, --version The chart-releaser version to use (default: $DEFAULT_CHART_RELEASER_VERSION)"
--config The path to the chart-releaser config file
-d, --charts-dir The charts directory (default: charts)
-o, --owner The repo owner
-r, --repo The repo name
--pages-branch The repo pages branch
-n, --install-dir The Path to install the cr tool
-i, --install-only Just install the cr tool
-s, --skip-packaging Skip the packaging step (run your own packaging before using the releaser)
--skip-existing Skip package upload if release exists
--skip-upload Skip package upload, just create the release. Not needed in case of OCI upload.
-l, --mark-as-latest Mark the created GitHub release as 'latest' (default: true)
--packages-with-index Upload chart packages directly into publishing branch
EOF
}

main() {
local version="$DEFAULT_CHART_RELEASER_VERSION"
local config=
local charts_dir=charts
local owner=
local repo=
local install_dir=
local install_only=
local skip_packaging=
local skip_existing=
local skip_upload=
local mark_as_latest=true
local packages_with_index=false
local pages_branch=

parse_command_line "$@"

: "${CR_TOKEN:?Environment variable CR_TOKEN must be set}"

local repo_root
repo_root=$(git rev-parse --show-toplevel)
pushd "$repo_root" >/dev/null

if [[ -z "$skip_packaging" ]]; then
echo 'Looking up latest tag...'
local latest_tag
latest_tag=$(lookup_latest_tag)

echo "Discovering changed charts since '$latest_tag'..."
local changed_charts=()
readarray -t changed_charts <<<"$(lookup_changed_charts "$latest_tag")"

if [[ -n "${changed_charts[*]}" ]]; then
install_chart_releaser

rm -rf .cr-release-packages
mkdir -p .cr-release-packages

rm -rf .cr-index
mkdir -p .cr-index

for chart in "${changed_charts[@]}"; do
if [[ -d "$chart" ]]; then
package_chart "$chart"
else
echo "Nothing to do. No chart changes detected."
fi
done

release_charts
update_index
echo "changed_charts=$(
IFS=,
echo "${changed_charts[*]}"
)" >changed_charts.txt
else
echo "Nothing to do. No chart changes detected."
echo "changed_charts=" >changed_charts.txt
fi
else
install_chart_releaser
rm -rf .cr-index
mkdir -p .cr-index
release_charts
update_index
fi

echo "chart_version=${latest_tag}" >chart_version.txt

popd >/dev/null
}

parse_command_line() {
while :; do
case "${1:-}" in
-h | --help)
show_help
exit
;;
--config)
if [[ -n "${2:-}" ]]; then
config="$2"
shift
else
echo "ERROR: '--config' cannot be empty." >&2
show_help
exit 1
fi
;;
-v | --version)
if [[ -n "${2:-}" ]]; then
version="$2"
shift
else
echo "ERROR: '-v|--version' cannot be empty." >&2
show_help
exit 1
fi
;;
-d | --charts-dir)
if [[ -n "${2:-}" ]]; then
charts_dir="$2"
shift
else
echo "ERROR: '-d|--charts-dir' cannot be empty." >&2
show_help
exit 1
fi
;;
-o | --owner)
if [[ -n "${2:-}" ]]; then
owner="$2"
shift
else
echo "ERROR: '--owner' cannot be empty." >&2
show_help
exit 1
fi
;;
-r | --repo)
if [[ -n "${2:-}" ]]; then
repo="$2"
shift
else
echo "ERROR: '--repo' cannot be empty." >&2
show_help
exit 1
fi
;;
--pages-branch)
if [[ -n "${2:-}" ]]; then
pages_branch="$2"
shift
fi
;;
-n | --install-dir)
if [[ -n "${2:-}" ]]; then
install_dir="$2"
shift
fi
;;
-i | --install-only)
if [[ -n "${2:-}" ]]; then
install_only="$2"
shift
fi
;;
-s | --skip-packaging)
if [[ -n "${2:-}" ]]; then
skip_packaging="$2"
shift
fi
;;
--skip-existing)
if [[ -n "${2:-}" ]]; then
skip_existing="$2"
shift
fi
;;
--skip-upload)
if [[ -n "${2:-}" ]]; then
skip_upload="$2"
shift
fi
;;
-l | --mark-as-latest)
if [[ -n "${2:-}" ]]; then
mark_as_latest="$2"
shift
fi
;;
--packages-with-index)
if [[ -n "${2:-}" ]]; then
packages_with_index="$2"
shift
fi
;;
*)
break
;;
esac

shift
done

if [[ -z "$owner" ]]; then
echo "ERROR: '-o|--owner' is required." >&2
show_help
exit 1
fi

if [[ -z "$repo" ]]; then
echo "ERROR: '-r|--repo' is required." >&2
show_help
exit 1
fi

if [[ -z "$install_dir" ]]; then
local arch
arch=$(uname -m)
install_dir="$RUNNER_TOOL_CACHE/cr/$version/$arch"
fi

if [[ -n "$install_only" ]]; then
echo "Will install cr tool and not run it..."
install_chart_releaser
exit 0
fi
}

install_chart_releaser() {
if [[ ! -d "$RUNNER_TOOL_CACHE" ]]; then
echo "Cache directory '$RUNNER_TOOL_CACHE' does not exist" >&2
exit 1
fi

if [[ ! -d "$install_dir" ]]; then
mkdir -p "$install_dir"

echo "Installing chart-releaser on $install_dir..."
curl -sSLo cr.tar.gz "https://github.com/helm/chart-releaser/releases/download/$version/chart-releaser_${version#v}_linux_amd64.tar.gz"
tar -xzf cr.tar.gz -C "$install_dir"
rm -f cr.tar.gz
fi

echo 'Adding cr directory to PATH...'
export PATH="$install_dir:$PATH"
}

lookup_latest_tag() {
git fetch --tags >/dev/null 2>&1

if ! git describe --tags --abbrev=0 HEAD~ 2>/dev/null; then
git rev-list --max-parents=0 --first-parent HEAD
fi
}

filter_charts() {
while read -r chart; do
[[ ! -d "$chart" ]] && continue
local file="$chart/Chart.yaml"
if [[ -f "$file" ]]; then
echo "$chart"
else
echo "WARNING: $file is missing, assuming that '$chart' is not a Helm chart. Skipping." 1>&2
fi
done
}

lookup_changed_charts() {
local commit="$1"

local changed_files
changed_files=$(git diff --find-renames --name-only "$commit" -- "$charts_dir")

local depth=$(($(tr "/" "\n" <<<"$charts_dir" | sed '/^\(\.\)*$/d' | wc -l) + 1))
local fields="1-${depth}"

cut -d '/' -f "$fields" <<<"$changed_files" | uniq | filter_charts
}

package_chart() {
local chart="$1"

local args=("$chart" --package-path .cr-release-packages)
if [[ -n "$config" ]]; then
args+=(--config "$config")
fi

echo "Packaging chart '$chart'..."
cr package "${args[@]}"
}

release_charts() {
local args=(-o "$owner" -r "$repo" -c "$(git rev-parse HEAD)")
if [[ -n "$config" ]]; then
args+=(--config "$config")
fi
if [[ "$packages_with_index" = true ]]; then
args+=(--packages-with-index --push --skip-existing)
elif [[ -n "$skip_existing" ]]; then
args+=(--skip-existing)
fi
if [[ "$mark_as_latest" = false ]]; then
args+=(--make-release-latest=false)
fi
if [[ -n "$pages_branch" ]]; then
args+=(--pages-branch "$pages_branch")
fi

echo 'Releasing charts...'
cr upload "${args[@]}"
}

update_index() {
if [[ -n "$skip_upload" ]]; then
echo "Skipping index upload..."
return
fi

local args=(-o "$owner" -r "$repo" --push)
if [[ -n "$config" ]]; then
args+=(--config "$config")
fi
if [[ "$packages_with_index" = true ]]; then
args+=(--packages-with-index --index-path .)
fi
if [[ -n "$pages_branch" ]]; then
args+=(--pages-branch "$pages_branch")
fi

echo 'Updating charts repo index...'
cr index "${args[@]}"
}

main "$@"
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