Use elm-format from nix, not from npm

Author: miniBill

.github/workflows/ci.yaml

@@ -17,6 +17,15 @@ jobs:
         with:
           node-version: 20
 
+      - name: Install Nix
+        uses: cachix/install-nix-action@v18
+      - name: Install direnv
+        run: sudo apt-get update && sudo apt-get install -y direnv
+      - name: Load environment variables
+        run: |
+          direnv allow .
+          direnv export gha > "$GITHUB_ENV"
+
       # Re-use node_modules between runs until package-lock.json changes.
       - name: Cache node_modules
         id: cache-node_modules
@@ -42,7 +51,12 @@ jobs:
         run: npm ci
 
       - name: Format
-        run: npm run format
+        uses: workflow/nix-shell-action@v3.4.0
+        with:
+          flakes: .#devShells.x86_64-linux.default
+          script: |
+            elm-format src tests --validate
+
       - name: Review
         run: npm run review
       - name: Test
@@ -59,11 +73,16 @@ jobs:
         with:
           node-version: 20
 
+      - name: Install Nix
+        uses: cachix/install-nix-action@v18
+      - name: Install direnv
+        run: sudo apt-get update && sudo apt-get install -y direnv
+
       - name: Checkout branch
         uses: actions/checkout@v4
         with:
           path: branch
-      
+
       - name: Checkout main
         uses: actions/checkout@v4
         with:
@@ -92,7 +111,7 @@ jobs:
       - name: Cache ~/.elm (both)
         uses: actions/cache@v4
         with:
-          path: ~/.elm
+          path: ~/.elmg
           key: elm-${{ hashFiles('main/elm.json', 'main/review/elm.json', 'branch/elm.json', 'branch/review/elm.json') }}
 
       # Install npm packages, unless we restored them from cache.
@@ -110,14 +129,32 @@ jobs:
         if: steps.cache-node_modules-main.outputs.cache-hit != 'true'
         working-directory: main
         run: npm ci
-  
-      - name: Generate (branch)
+
+      - name: Load environment variables (branch)
         working-directory: branch
-        run: npm run test:gen
-  
-      - name: Generate (main)
+        run: |
+          direnv allow .
+          direnv export gha > "$GITHUB_ENV"
+      - name: Generate (branch)
+        uses: workflow/nix-shell-action@v3.4.0
+        with:
+          flakes: ./branch#devShells.x86_64-linux.default
+          script: |
+            cd branch
+            (npm run test:gen | tee output) || (cat output && false)
+
+      - name: Load environment variables (main)
         working-directory: main
-        run: npm run test:gen || true # We don't want to block on main failing to generate
+        run: |
+          direnv allow .
+          direnv export gha > "$GITHUB_ENV"
+      - name: Generate (main)
+        uses: workflow/nix-shell-action@v3.4.0
+        with:
+          flakes: ./main#devShells.x86_64-linux.default
+          script: |
+            cd main
+            npm run test:gen || true # We don't want to block on main failing to generate
 
       - name: Diff the outputs
         run: |
@@ -131,4 +168,4 @@ jobs:
         uses: JoseThen/comment-pr@v1.2.0
         with:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          file_path: './diff.md'
+          file_path: "./diff.md"

package-lock.json

@@ -24,7 +24,6 @@
         "@redocly/cli": "1.11.0",
         "elm": "0.19.1-6",
         "elm-codegen": "^0.6.3",
-        "elm-format": "0.8.7",
         "elm-optimize-level-2": "0.3.5",
         "elm-pages": "^3.1.1",
         "elm-review": "^2.13.5",