initial commit

Change-Id: I26d65d84aa31f5cc4cc0835e3fb7269fedc73b45

deploy/.circleci/release.sh

@@ -0,0 +1,105 @@
+#!/bin/bash
+
+set -o nounset
+
+: "${CR_TOKEN:?Environment variable CR_TOKEN must be set}"
+: "${GIT_REPOSITORY_URL:?Environment variable GIT_REPOSITORY_URL must be set}"
+: "${GIT_USERNAME:?Environment variable GIT_USERNAME must be set}"
+: "${GIT_EMAIL:?Environment variable GIT_EMAIL must be set}"
+
+readonly OWNER=haproxytech
+readonly GIT_REPO=helm-charts
+readonly PACKAGE_PATH=.deploy
+readonly CHARTS_URL=https://haproxytech.github.io/helm-charts
+readonly REPO_ROOT="${REPO_ROOT:-$(git rev-parse --show-toplevel)}"
+
+find_latest_tag() {
+    if ! git describe --tags --abbrev=0 2>/dev/null; then
+        git rev-list --max-parents=0 --first-parent HEAD
+    fi
+}
+
+package_chart() {
+    local chart="$1"
+    helm dependency build "${chart}"
+    helm package "${chart}" --destination "${PACKAGE_PATH}"
+}
+
+release_charts() {
+    echo "Upload Helm chart packages to GitHub"
+    cr upload -o "${OWNER}" -r "${GIT_REPO}" -p "${PACKAGE_PATH}"
+
+    echo "Upload Helm chart packages to GHCR OCI"
+    echo "${HELM_GH_TOKEN}" | helm registry login ghcr.io --username "${OWNER}" --password-stdin
+
+    for chart in "${PACKAGE_PATH}"/*.tgz; do
+        helm push "${chart}" "oci://ghcr.io/${OWNER}/${GIT_REPO}"
+    done
+}
+
+update_index() {
+    echo "Generating Helm chart index"
+    git config user.email "${GIT_EMAIL}"
+    git config user.name "${GIT_USERNAME}"
+    git checkout gh-pages
+
+    cr index -i index.yaml -o "${OWNER}" -r "${GIT_REPO}" -c "${CHARTS_URL}" -p "${PACKAGE_PATH}"
+
+    git add index.yaml
+    git commit --message="Update index.yaml" --signoff
+    git push "${GIT_REPOSITORY_URL}" gh-pages
+}
+
+main() {
+    pushd "${REPO_ROOT}" >/dev/null || exit 1
+
+    echo "Fetching tags"
+    git fetch --tags
+
+    local latest_tag
+    latest_tag=$(find_latest_tag)
+
+    local latest_tag_rev
+    latest_tag_rev=$(git rev-parse --verify "${latest_tag}")
+    echo "${latest_tag_rev} ${latest_tag} (latest tag)"
+
+    local head_rev
+    head_rev=$(git rev-parse --verify HEAD)
+    echo "${head_rev} HEAD"
+
+    if [[ "${latest_tag_rev}" == "${head_rev}" ]]; then
+        echo "No code changes. Nothing to release."
+        exit
+    fi
+
+    mkdir -p "${PACKAGE_PATH}"
+
+    echo "Identifying changed charts since tag ${latest_tag}"
+
+    local changed_charts=()
+    readarray -t changed_charts <<< "$(git diff --find-renames --name-only "${latest_tag_rev}" | grep 'Chart.yaml$' | cut -d '/' -f 1 | sort -u)"
+
+    if [[ -n "${changed_charts[*]}" ]]; then
+        local release_pending=no
+        for chart in "${changed_charts[@]}"; do
+            if [[ -f "${chart}/Chart.yaml" ]]; then
+                release_pending=yes
+                echo "Packaging chart ${chart}"
+                package_chart "${chart}"
+            fi
+        done
+
+        if [[ "${release_pending}" == "yes" ]]; then
+            release_charts
+            update_index
+        else
+            echo "Nothing to do. No chart changes detected."
+        fi
+    else
+        echo "Nothing to do. No chart changes detected."
+    fi
+
+    popd >/dev/null || exit 1
+}
+
+main