Adding app-name-matcher to Action params

.env.example

@@ -0,0 +1,59 @@
+# Do not commit your actual .env file to Git! This may contain secrets or other
+# private information.
+
+# Enable/disable step debug logging (default: `false`). For local debugging, it
+# may be useful to set it to `true`.
+ACTIONS_STEP_DEBUG=true
+
+# GitHub Actions inputs should follow `INPUT_<name>` format (case-sensitive).
+# Hyphens should not be converted to underscores!
+# INPUT_MILLISECONDS=2400
+
+# GitHub Actions default environment variables. These are set for every run of a
+# workflow and can be used in your actions. Setting the value here will override
+# any value set by the local-action tool.
+# https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables
+
+# CI="true"
+# GITHUB_ACTION=""
+# GITHUB_ACTION_PATH=""
+# GITHUB_ACTION_REPOSITORY=""
+# GITHUB_ACTIONS=""
+# GITHUB_ACTOR=""
+# GITHUB_ACTOR_ID=""
+# GITHUB_API_URL=""
+# GITHUB_BASE_REF=""
+# GITHUB_ENV=""
+# GITHUB_EVENT_NAME=""
+# GITHUB_EVENT_PATH=""
+# GITHUB_GRAPHQL_URL=""
+# GITHUB_HEAD_REF=""
+# GITHUB_JOB=""
+# GITHUB_OUTPUT=""
+# GITHUB_PATH=""
+# GITHUB_REF=""
+# GITHUB_REF_NAME=""
+# GITHUB_REF_PROTECTED=""
+# GITHUB_REF_TYPE=""
+# GITHUB_REPOSITORY=""
+# GITHUB_REPOSITORY_ID=""
+# GITHUB_REPOSITORY_OWNER=""
+# GITHUB_REPOSITORY_OWNER_ID=""
+# GITHUB_RETENTION_DAYS=""
+# GITHUB_RUN_ATTEMPT=""
+# GITHUB_RUN_ID=""
+# GITHUB_RUN_NUMBER=""
+# GITHUB_SERVER_URL=""
+# GITHUB_SHA=""
+# GITHUB_STEP_SUMMARY=""
+# GITHUB_TRIGGERING_ACTOR=""
+# GITHUB_WORKFLOW=""
+# GITHUB_WORKFLOW_REF=""
+# GITHUB_WORKFLOW_SHA=""
+# GITHUB_WORKSPACE=""
+# RUNNER_ARCH=""
+# RUNNER_DEBUG=""
+# RUNNER_NAME=""
+# RUNNER_OS=""
+# RUNNER_TEMP=""
+# RUNNER_TOOL_CACHE=""

.gitattributes

@@ -0,0 +1,3 @@
+* text=auto eol=lf
+
+dist/** -diff linguist-generated=true

.github/workflows/build.yml

@@ -0,0 +1,16 @@
+name: "build"
+on: # rebuild any PRs and main branch changes
+  pull_request:
+  push:
+    branches:
+      - master
+      - 'releases/*'
+
+jobs:
+  build: # make sure build/ci work properly
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - run: |
+        npm install
+        npm run all

.github/workflows/test.yml

@@ -1,4 +1,4 @@
-name: "build-test"
+name: "test"
 on: # rebuild any PRs and main branch changes
   pull_request:
   push:
@@ -7,14 +7,6 @@ on: # rebuild any PRs and main branch changes
       - 'releases/*'
 
 jobs:
-  build: # make sure build/ci work properly
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-    - run: |
-        npm install
-        npm run all
-
   test: # make sure the action works on a clean machine without building
     runs-on: ubuntu-latest
     steps:

README.md

@@ -30,7 +30,10 @@ jobs:
           argocd-token: ${{ secrets.ARGOCD_TOKEN }}
           github-token: ${{ secrets.GITHUB_TOKEN }}
           argocd-version: v1.6.1
-          argocd-extra-cli-args: --grpc-web
+          argocd-extra-cli-args: --grpc-web # optional
+          app-name-matcher: "/^myapp-/" # optional
+          plaintext: true # optional
+          environment: myenv # optional
 ```
 
 ## How it works

__tests__/main.test.ts

@@ -1,14 +1,44 @@
 import os from 'os';
+import { run, filterAppsByName, type App } from '../src/main';
 
-describe('main', () => {
+describe('Action', () => {
   // shows how the runner will run a javascript action with env / stdout protocol
-  test('test runs', async () => {
+  test('runs', async () => {
     process.env['RUNNER_TEMP'] = os.tmpdir();
     process.env['GITHUB_REPOSITORY'] = 'quizlet/cd-infra';
     process.env['INPUT_GITHUB-TOKEN'] = '500';
     process.env['INPUT_ARGOCD-VERSION'] = 'v1.6.1';
     process.env['INPUT_ARGOCD-SERVER-URL'] = 'argocd.qzlt.io';
     process.env['INPUT_ARGOCD-TOKEN'] = 'foo';
-    expect(import('../src/main')).resolves.toBeTruthy();
+    expect(run()).rejects.toThrow();
+  });
+
+  describe('matches app names', () => {
+    const makeApp = (name: string) => ({ metadata: { name } }) as App;
+
+    test('allows all apps when matcher is empty', () => {
+      expect(filterAppsByName([makeApp('foobar'), makeApp('bazqux')], '')).toEqual([
+        makeApp('foobar'),
+        makeApp('bazqux')
+      ]);
+    });
+
+    test('allows only apps when matcher is provided', () => {
+      expect(filterAppsByName([makeApp('foobar'), makeApp('bazqux')], 'foobar')).toEqual([
+        makeApp('foobar')
+      ]);
+    });
+
+    test('treats matcher as regex when it is delimited by slashes', () => {
+      expect(filterAppsByName([makeApp('foobar'), makeApp('bazqux')], '/bar$/')).toEqual([
+        makeApp('foobar')
+      ]);
+    });
+
+    test('with negative lookahead in regex', () => {
+      expect(filterAppsByName([makeApp('foobar'), makeApp('bazqux')], '/^(?!foobar$).*$/')).toEqual(
+        [makeApp('bazqux')]
+      );
+    });
   });
 });

action.yml

@@ -28,6 +28,10 @@ inputs:
     description: Name of env to use in the diff title posted to the PR
     default: legacy
     required: false
+  app-name-matcher:
+    description: Comma-separated list or '/'-delimited regex of app names to include in diff output
+    default: ""
+    required: false
 runs:
   using: 'node20'
   main: 'dist/index.js'