ci: make GitHub workflows modular

.github/workflows/build.yml

@@ -0,0 +1,22 @@
+name: Build
+
+on:
+  push:
+    # release pipeline calls build so don't run it twice
+    branches-ignore: ["main"]
+  pull_request:
+  workflow_call:
+
+jobs:
+  lint:
+    uses: ./.github/workflows/lint.yml
+
+  docker:
+    runs-on: ubuntu-latest
+    needs:
+      - lint
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build Docker Image
+        run: docker build . --file Dockerfile --tag ghcr.io/podaboutlist/linkfix-for-discord:$(date +%s)

.github/workflows/lint.yml

@@ -1,15 +1,18 @@
-name: Lint TypeScript and build Dockerfile
-on: [push, pull_request]
+name: Lint
+
+on:
+  workflow_call:
+
 jobs:
-  prettier_lint:
+  prettier:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
 
       - name: Install Node.js
         uses: actions/setup-node@v3
         with:
-          node-version: 'lts/*'
+          node-version: "lts/*"
 
       - name: Cache NPM Dependencies
         uses: actions/cache@v3
@@ -23,13 +26,3 @@ jobs:
 
       - name: Lint src/**/*.ts with Prettier
         run: npm run lint
-
-  docker_build:
-    runs-on: ubuntu-latest
-    # Don't try to build the Docker image unless linting succeeds
-    needs: prettier_lint
-    steps:
-      - uses: actions/checkout@v3
-
-      - name: Build Docker image
-        run: docker build . --file Dockerfile --tag ghcr.io/podaboutlist/linkfix-for-discord:$(date +%s)

.github/workflows/release.yml

@@ -0,0 +1,21 @@
+name: Release
+
+on:
+  push:
+    branches: ["main"]
+    tags: ["**"]
+
+jobs:
+  ghcr:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Build and publish a Docker image for ${{ github.repository }}
+        uses: macbre/push-to-ghcr@master
+        with:
+          image_name: ${{ github.repository }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}