Automate shorthand major version tag updating (#28)

Author: rekmarks

.github/workflows/publish-release.yml

@@ -21,5 +21,8 @@ jobs:
         with:
           node-version: ${{ steps.nvm.outputs.NODE_VERSION }}
       - uses: ./
+        id: publish-release
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Update shorthand major version tag
+        run: ./scripts/update-major-version-tag.sh ${{ steps.publish-release.outputs.release-version }}

action.yml

@@ -6,6 +6,11 @@ inputs:
     default: 'release/'
     required: true
 
+outputs:
+  release-version:
+    description: 'The version of the release'
+    value: ${{ steps.get-release-version.outputs.RELEASE_VERSION }}
+
 runs:
   using: 'composite'
   steps:

scripts/update-major-version-tag.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+
+set -x
+set -e
+set -o pipefail
+
+RELEASE_VERSION="${1}"
+
+if [[ -z $RELEASE_VERSION ]]; then
+  echo "Error: No release version specified."
+  exit 1
+fi
+
+MAJOR_VERSION_TAG="v${RELEASE_VERSION/\.*/}"
+
+git config user.name github-actions
+git config user.email github-actions@github.com
+
+if git show-ref --tags "$MAJOR_VERSION_TAG" --quiet; then
+  echo "Tag ${MAJOR_VERSION_TAG} exists, attempting to delete it."
+  git tag --delete "$MAJOR_VERSION_TAG"
+  git push --delete origin "$MAJOR_VERSION_TAG"
+else 
+  echo "Tag ${MAJOR_VERSION_TAG} does not exist, creating it from scratch."
+fi
+
+git tag "$MAJOR_VERSION_TAG" HEAD
+git push --tags
+echo "Updated shorthand major version tag."
+
+echo "::set-output name=MAJOR_VERSION_TAG::$MAJOR_VERSION_TAG"