ci: Copy workflows from Tap.

Author: jnms-me

.github/workflows/docker-master.yml

@@ -0,0 +1,33 @@
+name: "docker: Build and push ghcr.io/zeuswpi/tab:latest"
+
+on:
+  push:
+    branches:
+      - master
+
+concurrency:
+  group: docker-master
+  cancel-in-progress: true
+
+jobs:
+  docker-master:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.production
+          push: true
+          tags: |
+            ghcr.io/zeuswpi/tab:latest
+            ghcr.io/zeuswpi/tab:latest-${{ github.sha }}

.github/workflows/docker-pr.yml

@@ -0,0 +1,31 @@
+name: "docker: Build and push ghcr.io/zeuswpi/tab:pr-[number]"
+
+on:
+  pull_request:
+
+concurrency:
+  group: docker-pr-${{ github.ref_name }}
+  cancel-in-progress: true
+
+jobs:
+  docker-pr:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ github.token }}
+
+      - uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile.production
+          push: true
+          tags: |
+            ghcr.io/zeuswpi/tab:pr-${{ github.event.pull_request.number }}
+            ghcr.io/zeuswpi/tab:pr-${{ github.event.pull_request.number }}-${{ github.sha }}

.github/workflows/ruby-lint.yml

@@ -0,0 +1,22 @@
+name: "ruby: lint"
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  ruby-lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: "Install the Ruby version in .ruby-version"
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: "Run rubocop"
+        env:
+          RAILS_ENV: test
+        run: |
+          bundle exec rubocop

.github/workflows/ruby-test.yml

@@ -0,0 +1,30 @@
+name: "ruby: test"
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  ruby-test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: "Install the Ruby version in .ruby-version"
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+
+      - name: "Initialize a test database"
+        env:
+          RAILS_ENV: test
+        run: |
+          bundle exec rake db:create
+          bundle exec rake db:schema:load
+
+      - name: "Run rake"
+        env:
+          RAILS_ENV: test
+          COVERALLS_REPO_TOKEN : ${{ secrets.COVERALLS_REPO_TOKEN }}
+        run: |
+          bundle exec rake