CLOUDP-218697: Detect helm chart releases happened

Signed-off-by: Jose Vazquez <[email protected]>

.github/actions/releaser/action.yml

@@ -18,11 +18,21 @@ inputs:
   dryrun:
     description: "not actually release, but check what would be done"
     required: false
+  action:
+    type: choice
+    description: Release or check
+    options:
+    - release
+    - check
+    default: release
+    required: false
 
 runs:
   using: composite
   steps:
-    - shell: bash
+    - name: release
+      shell: bash
+      if: inputs.action == "release"
       run: |
         export VERSION="${{ inputs.version }}"
         export CHART_DIR="${{ inputs.charts_dir }}"
@@ -35,3 +45,11 @@ runs:
         export REPO=$repo
 
         "$GITHUB_ACTION_PATH/cr.sh" "${{ inputs.target }}"
+    - name: check
+      shell: bash
+      if: inputs.action == "check"
+      run: |
+        export CHART_DIR="${{ inputs.charts_dir }}"
+        export CHARTS_REPO_URL="${{ inputs.charts_repo_url }}"
+
+        "$GITHUB_ACTION_PATH/check.sh" "${{ inputs.target }}"

.github/actions/releaser/check.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+
+# Check or or all helm charts versions in current branch code have been released
+
+# NOTE: assume GNU semantics for tools like awk, grep, etc
+
+set -o errexit
+set -o nounset
+set -o pipefail
+
+SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+# shellcheck source=cr-funcs.sh
+source "${SCRIPT_DIR}/cr-funcs.sh"
+
+main() {
+    local target=("$@")
+    local charts_dir=${CHART_DIR:-charts}
+    local charts_repo_url=${CHARTS_REPO_URL:-}
+    local unreleased_charts=()
+
+    if [[ -z "${target[*]}" ]]; then
+        mapfile -t target< <(find "$charts_dir" -maxdepth 2 -type f -name Chart.yaml | awk -F / '{print $2}')
+    fi
+
+    echo "Checking release status for helm charts:" "${target[@]}"
+
+    prepare_helm_repo
+
+    for folder in "${target[@]}"; do
+        [[ ! -f "$charts_dir/$folder/Chart.yaml" ]] && continue
+        print_line_separator
+        local chart_name
+        local chart_version
+        local chart_was_released
+
+        chart_name=$(read_chart_name "${charts_dir}/${folder}")
+        chart_version=$(read_chart_version "${charts_dir}/${folder}")
+        echo "Checking if \"$charts_dir/$folder\" has been released to the repo"
+        chart_was_released=$(chart_released "${chart_name}" "${chart_version}")
+
+        echo "released result: \"${chart_was_released}\""
+
+        if [ -z "${chart_was_released}" ]; then
+            unreleased_charts+=("$chart_name")
+        fi
+    done
+
+    if [[ -n "${unreleased_charts[*]}" ]]; then
+        echo "FAIL: found unreleased charts:" "${unreleased_charts[@]}"
+        exit 1
+    else
+        echo "PASS: all latest helm charts released for" "${target[@]}"
+    fi
+}
+
+mapfile -t target< <(echo "$1" )
+main "${target[@]}"

.github/actions/releaser/cr-funcs.sh

@@ -0,0 +1,171 @@
+#!/usr/bin/env bash
+
+# common chart release related shell functions
+
+# NOTE: assume GNU semantics for tools like awk, grep, etc
+
+print_line_separator() {
+    echo "============================================="
+}
+
+release_charts_inside_folders() {
+    local folders=("$@")
+    local changed_charts=()
+
+    prepare_helm_repo
+
+    # form list of folder which was changed
+    for folder in "${folders[@]}"; do
+        [[ ! -f "$charts_dir/$folder/Chart.yaml" ]] && continue
+        print_line_separator
+        local chart_name
+        local chart_version
+        local chart_was_released
+
+        chart_name=$(read_chart_name "${charts_dir}/${folder}")
+        chart_version=$(read_chart_version "${charts_dir}/${folder}")
+        echo "Checking if \"$charts_dir/$folder\" has been released to the repo"
+        chart_was_released=$(chart_released "${chart_name}" "${chart_version}")
+
+        echo "released result: \"${chart_was_released}\""
+
+        # if chart is not released or folder has change, then remember as changed_charts
+        if [ -z "${chart_was_released}" ] || has_changed "$folder"; then
+            changed_charts+=("$folder")
+        fi
+    done
+    echo "changed charts: " "${changed_charts[@]}"
+
+    # continue only with changed charts
+    if [[ -n "${changed_charts[*]}" ]]; then
+        if [ "${DRYRUN}" == "true" ]; then
+            echo "DRYRUN: Would have released charts" "${changed_charts[@]}"
+        else
+            release_changed_charts "${changed_charts[@]}"
+        fi
+    else
+        echo "Nothing to do. No chart changes detected."
+    fi
+}
+
+read_chart_name() {
+    local chart_path=$1
+    awk '/^name: /{print $2}' "$chart_path/Chart.yaml"
+}
+
+read_chart_version() {
+    local chart_path=$1
+    awk '/^version: /{print $2}' "$chart_path/Chart.yaml"
+}
+
+prepare_helm_repo() {
+    helm repo add mongodb https://mongodb.github.io/helm-charts
+    helm repo update mongodb
+}
+
+chart_released() {
+    local chart_name=$1
+    local version=$2
+
+    helm search repo "mongodb/${chart_name}" --version "${version}" |grep "${chart_name}\s"
+}
+
+# check if release version and chart version is diffrent
+has_changed() {
+    local folder=$1
+    local chart_name
+    chart_name=$(awk '/^name/{print $2}' "$charts_dir/$folder/Chart.yaml")
+    tag=$(get_latest_tag "$chart_name")
+    changed_files=$(git diff --find-renames --name-only "$tag" -- "$charts_dir/$folder")
+
+    echo "Looking for versions..."
+    tag_version=$(echo "$tag" | awk -F '-' '{print $NF}') # sample-0.1.1 | 0.1.1
+    chart_version=$(awk '/^version: /{print $2}' "$charts_dir/$folder/Chart.yaml")
+    echo "version from tag: $tag_version"
+    echo "version from chart: $chart_version"
+
+    if [[ "$tag_version" != "$chart_version" ]] && [[ -n "$changed_files" ]]; then
+        return 0
+    fi
+    return 1
+}
+
+get_latest_tag(){
+    local name=$1
+
+    git fetch --tags > /dev/null 2>&1
+    git describe --tags --abbrev=0 --match="$name-[0-9.]*" "$(git rev-list --tags --max-count=1)"
+}
+
+release_changed_charts() {
+    local changed_charts=("$@")
+
+    helm repo update
+    install_chart_releaser
+    cleanup_releaser
+    package_charts "${changed_charts[@]}"
+    release_charts
+    update_index
+}
+
+install_chart_releaser() {
+    print_line_separator
+    if [[ ! -d "$RUNNER_TOOL_CACHE" ]]; then
+        echo "Cache directory '$RUNNER_TOOL_CACHE' does not exist" >&2
+        exit 1
+    fi
+
+    local arch
+    arch=$(uname -m)
+
+    local cache_dir="$RUNNER_TOOL_CACHE/ct/$version/$arch"
+    if [[ ! -d "$cache_dir" ]]; then
+        mkdir -p "$cache_dir"
+
+        echo "Installing chart-releaser..."
+        curl -sSLo cr.tar.gz "https://github.com/helm/chart-releaser/releases/download/$version/chart-releaser_${version#v}_linux_amd64.tar.gz"
+        tar -xzf cr.tar.gz -C "$cache_dir"
+        rm -f cr.tar.gz
+
+        echo 'Adding cr directory to PATH...'
+    fi
+    export PATH="$cache_dir:$PATH"
+}
+
+cleanup_releaser() {
+    rm -rf .cr-release-packages
+    mkdir -p .cr-release-packages
+
+    rm -rf .cr-index
+    mkdir -p .cr-index
+}
+
+package_charts() {
+    print_line_separator
+    local changed_charts=("$@")
+    for chart in "${changed_charts[@]}"; do
+        folder="$charts_dir/$chart"
+        if [[ -d "$folder" ]]; then
+            local args=("$folder" --package-path .cr-release-packages)
+
+            echo "Packaging chart folder '$folder'..."
+            cr package "${args[@]}"
+        else
+            echo "Chart '$folder' no longer exists in repo. Skipping it..."
+        fi
+    done
+}
+
+release_charts() {
+    local args=(-o "$owner" -r "$repo" -c "$(git rev-parse HEAD)")
+
+    echo 'Releasing charts...'
+    cr upload "${args[@]}"
+}
+
+update_index() {
+    local args=(-o "$owner" -r "$repo" -c "$charts_repo_url" --push)
+
+    echo 'Updating charts repo index...'
+    cr index "${args[@]}"
+}