Add Earthly

.github/workflows/ci.yml

@@ -8,17 +8,40 @@ on:
 
 jobs:
   specs:
-    strategy:
-      fail-fast: false
-      matrix:
-        os: [ubuntu-latest, windows-latest]
-        crystal_version: [latest]
-    runs-on: ${{ matrix.os }}
-    continue-on-error: false
+    runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: 1
+    steps:
+      - uses: earthly/actions-setup@v1
+        with:
+          version: v0.7.8
+      - name: Set up QEMU
+        id: qemu
+        uses: docker/setup-qemu-action@v1
+        with:
+          image: tonistiigi/binfmt:latest
+          platforms: all
+      - uses: actions/checkout@v2
+      - name: Put back the git branch into git (Earthly uses it for tagging)
+        run: |
+          branch=""
+          if [ -n "$GITHUB_HEAD_REF" ]; then
+            branch="$GITHUB_HEAD_REF"
+          else
+            branch="${GITHUB_REF##*/}"
+          fi
+          git checkout -b "$branch" || true
+      - name: Earthly version
+        run: earthly --version
+      - name: Run build
+        run: earthly +ci
+
+  windows-specs:
+    runs-on: windows-latest
     steps:
       - uses: actions/checkout@v3
       - uses: crystal-lang/install-crystal@v1
         with:
-          crystal: ${{ matrix.crystal_version }}
+          crystal: latest
       - name: Run tests
         run: crystal spec

Earthfile

@@ -0,0 +1,27 @@
+VERSION 0.7
+FROM 84codes/crystal:latest-ubuntu-22.04
+WORKDIR /workdir
+
+# ci runs only in CI
+ci:
+    BUILD +lint
+    BUILD --platform=linux/amd64 +test
+    BUILD --platform=linux/arm64 +test
+
+# deps adds source code and builds project dependency graph
+deps:
+    RUN apt-get update \
+     && apt-get install -y gettext
+    COPY . ./
+    RUN shards install
+
+# test executes project specs
+test:
+    FROM +deps
+    RUN crystal spec
+
+# lint executes ameba
+lint:
+    FROM ghcr.io/crystal-ameba/ameba:1.5.0
+    COPY . ./
+    RUN ameba

spec/lucky_template_spec.cr

@@ -141,7 +141,7 @@ describe LuckyTemplate do
     end
 
     it "raises if folder is locked" do
-      folder = LuckyTemplate.write!(Path["."]) do |dir|
+      LuckyTemplate.write!(Path["."]) do |dir|
         expect_raises(LuckyTemplate::Error, "folder is locked") do
           LuckyTemplate.validate!(Path["."], dir)
         end