GitHub Actions - template cleanup workflow

.github/template-cleanup/CHANGELOG.md

@@ -0,0 +1,7 @@
+<!-- Keep a Changelog guide -> https://keepachangelog.com -->
+
+# %NAME% Changelog
+
+## [Unreleased]
+### Added
+- Initial scaffold created from [IntelliJ Plugin Template](https://github.com/JetBrains/intellij-plugin-template)

.github/template-cleanup/README.md

@@ -0,0 +1,28 @@
+# %NAME%
+
+![Build](https://github.com/hsz/intellij-plugin-template/workflows/Build/badge.svg)
+
+<!-- Plugin description -->
+This Fancy IntelliJ Plugin is going to be your implementation of the brilliant ideas that you have.
+
+This specific section is a source for the [plugin.xml](./src/main/resources/META-INF/plugin.xml) file which will be
+extracted by the [Gradle](./build.gradle.kts) during the build process.
+
+To keep everything working, do not remove `<!-- ... -->` sections. 
+<!-- Plugin description end -->
+
+## Installation
+
+- Using IDE built-in plugin system:
+  
+  <kbd>Preferences</kbd> > <kbd>Plugins</kbd> > <kbd>Marketplace</kbd> > <kbd>Search for "%NAME%"</kbd> >
+  <kbd>Install Plugin</kbd>
+  
+- Manually:
+
+  Download the [latest release](https://github.com/%REPOSITORY%/releases/latest) and install it manually using
+  <kbd>Preferences</kbd> > <kbd>Plugins</kbd> > <kbd>⚙️</kbd> > <kbd>Install plugin from disk...</kbd>
+
+
+---
+Plugin based on the [IntelliJ Plugin Template](https://github.com/JetBrains/intellij-plugin-template).

.github/workflows/build.yml

@@ -1,9 +1,11 @@
-# GitHub Actions Workflow created for testing the plugin in three steps:
-# - test using Gradle tasks, such as tes and verifyPlugin,
-# - test building process by preparing the artifact using buildPlugin Gradle task,
-# - run IntelliJ Plugin Verifier.
+# GitHub Actions Workflow created for testing and preparing the plugin release in following steps:
+# - validate Gradle Wrapper,
+# - run test and verifyPlugin tasks,
+# - run buildPlugin task and prepare artifact for the further tests,
+# - run IntelliJ Plugin Verifier,
+# - create a draft release.
 #
-# Workflow is triggered on push or pull request event.
+# Workflow is triggered on push and pull_request events.
 #
 # Docs:
 # - GitHub Actions: https://help.github.com/en/actions
@@ -156,7 +158,7 @@ jobs:
   # If accepted and published, release workflow would be triggered.
   releaseDraft:
     name: Release Draft
-#    if: github.ref == 'refs/heads/master'
+    if: github.ref == 'refs/heads/master'
     needs: [build, verify]
     runs-on: ubuntu-latest
     steps:

.github/workflows/release.yml

@@ -1,3 +1,6 @@
+# GitHub Actions Workflow created for handling the release process based on the draft release prepared
+# with the Build workflow. Running the publishPlugin task requires the PUBLISH_TOKEN secret provided.
+
 name: Release
 on:
   release:

.github/workflows/template-cleanup.yml

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+# GitHub Actions Workflow responsible for cleaning up the IntelliJ Plugin Template repository from
+# the template-specific files and configurations. This workflow is supposed to be triggered automatically
+# when a new template-based repository has been created.
+
+name: Tempalte Cleanup
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+
+  # Run cleaning process only if workflow is triggered by the non-JetBrains/intellij-plugin-template repository.
+  template-cleanup:
+    name: Template Cleanup
+    runs-on: ubuntu-latest
+    if: github.repository != 'JetBrains/intellij-plugin-template'
+    steps:
+
+      # Check out current repository
+      - name: Fetch Sources
+        uses: actions/checkout@v2
+
+      # Cleanup project
+      - name: Cleanup
+        run: |
+          export LC_CTYPE=C
+          export LANG=C
+
+          # Prepare variables
+          NAME="${GITHUB_REPOSITORY##*/}"
+          SAFE_NAME=$(echo $NAME | sed 's/[^a-zA-Z0-9]//g' | tr '[:upper:]' '[:lower:]')
+          ACTOR=$(echo $GITHUB_ACTOR | tr '[:upper:]' '[:lower:]')
+          GROUP="com.github.$ACTOR.$SAFE_NAME"
+
+          # Replace placeholders in the template-cleanup files
+          sed -i '' "s/%NAME%/$NAME/g" .github/template-cleanup/*
+          sed -i '' "s/%REPOSITORY%/${GITHUB_REPOSITORY/\//\\/}/g" .github/template-cleanup/*
+          sed -i '' "s/%GROUP%/$GROUP/g" .github/template-cleanup/*
+
+          # Replace template package name in project files with $GROUP
+          sed -i '' "s/org.jetbrains.plugins.template/$GROUP/g" gradle.properties
+          find . -type f -exec sed -i '' "s/org.jetbrains.plugins.template/$GROUP/g" {} +
+
+          # Move content
+          mkdir -p src/main/kotlin/${GROUP//.//}
+          cp -R .github/template-cleanup/* .
+          cp -R src/main/kotlin/org/jetbrains/plugins/template/* src/main/kotlin/${GROUP//.//}/
+
+          # Cleanup
+          rm -rf .github/readme
+          rm -rf .github/template-cleanup
+          rm -rf src/main/kotlin/org
+          rm .github/workflows/template-cleanup.yml
+
+      # Commit modified files
+      - name: Commit files
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git commit -m "Template cleanup" -a
+
+      # Push changes
+      - name: Push changes
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}