feat: too many changes to explain

- consuming this action successfully
- turns out I have to use node? rewriting all the things

.github/workflows/release-notes.yaml

@@ -7,24 +7,18 @@ on:
 jobs:
   preview:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.8]
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
     - uses: actions/checkout@v2
     - run: |
         git fetch --prune --unshallow --tags
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+    # TODO: cache node_modules
+    - run: |
+        npm i
+    - uses: ./
       with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - name: Post release notes
-      run: python $GITHUB_WORKSPACE/py/main.py
+        releaseBranch: master
+        githubPosterId: 18642669
       env:
         GITHUB_USERNAME: ${{ github.actor }}
         GITHUB_TOKEN: ${{ secrets.RELEASE_NOTES_PREVIEW_GITHUB_TOKEN }}

.gitignore

@@ -0,0 +1,2 @@
+dist
+node_modules

action.yaml

@@ -1,30 +1,16 @@
 name: Release-Notes-Preview
+author: 'Amir Moualem'
+description: 'Presents a preview of expected release notes should the PR get merged, based on Semantic Release.'
 
-on:
-  pull_request:
-    branches: [ master ]
+inputs:
+  releaseBranch:
+    description: 'Branch where the Semantic Release will occur.'
+    required: false
+    default: 'master'
+  githubPosterId:
+    description: 'ID of the user associated with the GITHUB_TOKEN. Used to delete previous release notes previews so we dont spam pull requests.'
+    required: true
 
-jobs:
-  preview:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        python-version: [3.8]
-    steps:
-    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v2
-    - run: |
-        git fetch --prune --unshallow --tags
-    - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
-      with:
-        python-version: ${{ matrix.python-version }}
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install requests
-    - name: Post release notes
-      run: python $GITHUB_WORKSPACE/py/main.py
-      env:
-        GITHUB_USERNAME: ${{ github.actor }}
-        GITHUB_TOKEN: ${{ secrets.RELEASE_NOTES_PREVIEW_GITHUB_TOKEN }}
+runs:
+  using: node12
+  main: dist/index.js

dist/index.js

@@ -0,0 +1,36 @@
+const fs = require('fs');
+const needle = require('needle');
+
+const GITHUB_TOKEN = process.env.GITHUB_TOKEN;
+
+const eventName = process.env.GITHUB_EVENT_NAME;
+if (eventName !== 'pull_request') {
+  process.exit(1);
+}
+
+const eventPath = process.env.GITHUB_EVENT_PATH;
+const eventData = fs.readFileSync(eventPath);
+const event = JSON.parse(eventData);
+console.log(event);
+
+const issueUrl = event.pull_request.issue_url;
+
+const url = `${issueUrl}/comments`;
+const payload = {
+  body: 'There\'s butter on my face!',
+};
+const options = {
+  json: true,
+  compressed: true,
+  headers: {
+    Authorization: 'token ' + GITHUB_TOKEN,
+  },
+};
+
+
+needle('post', url, payload, options)
+  .then((response) => {
+    console.log('huzzah!');
+  }).catch((err) => {
+    console.log('I have no idea what I\'m doing');
+  });

package.json

@@ -0,0 +1,36 @@
+{
+  "name": "release-notes-preview",
+  "description": "Presents a preview of expected release notes should the PR get merged, based on Semantic Release.",
+  "license": "MIT",
+  "main": "dist/index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/snyk/release-notes-preview.git"
+  },
+  "author": "Amir Moualem",
+  "bugs": {
+    "url": "https://github.com/snyk/release-notes-preview/issues"
+  },
+  "homepage": "https://github.com/snyk/release-notes-preview#readme",
+  "dependencies": {
+    "needle": "^2.3.3"
+  },
+  "release": {
+    "branches": "master",
+    "verifyConditions": [
+      "@semantic-release/github"
+    ],
+    "publish": [
+      "@semantic-release/github"
+    ],
+    "success": [
+      "@semantic-release/github"
+    ],
+    "fail": [
+      "@semantic-release/github"
+    ]
+  }
+}

py/main.py

@@ -8,6 +8,14 @@
 if eventName != 'pull_request':
     sys.exit(0)
 
+RELEASE_BRANCH = os.environ['INPUT_RELEASE_BRANCH']
+if not RELEASE_BRANCH:
+    print('INPUT_RELEASE_BRANCH is missing')
+    sys.exit(1)
+GITHUB_POSTER_ID = os.environ['INPUT_GITHUB_POSTER_ID']
+if not GITHUB_POSTER_ID:
+    print('INPUT_GITHUB_POSTER_ID is missing')
+    sys.exit(1)
 GITHUB_USERNAME = os.environ.get('GITHUB_USERNAME', 'USER_NOT_FOUND')
 GITHUB_OWNER_AND_REPO = os.environ['GITHUB_REPOSITORY']
 GITHUB_TOKEN = os.environ['GITHUB_TOKEN']
@@ -45,8 +53,7 @@ def main():
     # TODO replace login & id for the details of the token
     commentIds = [
         comment['id'] for comment in allCommentsResponse
-        if comment['user']['login'] == 'snyk-deployer'
-        and comment['user']['id'] == 18642669
+        if comment['user']['id'] == 18642669
         and 'Expected release notes' in comment['body']
     ]
 
@@ -57,8 +64,8 @@ def main():
             headers=headers,
         )
 
-    # TODO: "master" needs to be parameterised
-    lastVersion = subprocess.check_output(['git', 'describe', '--abbrev=0', '--tags', 'origin/master'], text=True, stderr=subprocess.STDOUT).strip()
+    releaseBranchString = 'origin/%s' % RELEASE_BRANCH
+    lastVersion = subprocess.check_output(['git', 'describe', '--abbrev=0', '--tags', releaseBranchString], text=True, stderr=subprocess.STDOUT).strip()
     commitsSinceLastVersion = subprocess.check_output(['git', 'log', '--no-decorate', lastVersion + '..HEAD', '--oneline'], text=True).strip()
     commits = processCommits(commitsSinceLastVersion)
     if not (commits['features'] or commits['fixes']):