ci: build and test in separate jobs

Author: aminya

.github/workflows/CI.yml

@@ -6,8 +6,41 @@ on:
     #   - master
 
 jobs:
+  Build:
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+        atom_channel:
+          - stable
+    steps:
+      - uses: actions/checkout@v2
+      - uses: atom-community/action-setup-atom@v1
+        with:
+          channel: ${{ matrix.atom_channel }}
+
+      - name: Install dependencies and build
+        run: |
+          apm install
+
+          npm run clean
+          npm run tsc || echo done
+
+          npm run clean
+          npm run build
+
+      - name: Upload built files
+        uses: actions/upload-artifact@v2
+        with:
+          path: |
+            ./dist
+
   Test:
     if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    needs: Build
     name: ${{ matrix.os }} - Atom ${{ matrix.atom_channel }}
     runs-on: ${{ matrix.os }}
     strategy:
@@ -24,11 +57,18 @@ jobs:
         with:
           channel: ${{ matrix.atom_channel }}
 
-      - name: Install dependencies and build
+      - name: Download articats
+        uses: actions/download-artifact@v2
+      - name: Place artifacts
+        shell: bash
         run: |
-          apm install
-          npm run tsc || echo done
-          npm run build
+          rm -rf dist
+          mv artifact/* ./
+
+      - name: Install dependencies
+        run: |
+          apm install --production
+          npm install --only=dev  # needed for testing
 
       - name: Run tests 👩🏾‍💻
         run: npm run test
@@ -55,10 +95,3 @@ jobs:
 
       - name: Lint ✨
         run: npm run test.lint
-
-  Skip:
-    if: contains(github.event.head_commit.message, '[skip ci]')
-    runs-on: ubuntu-latest
-    steps:
-      - name: Skip CI 🚫
-        run: echo skip ci

package.json

@@ -48,8 +48,7 @@
     "build:services-docs": "markdox lib/services/index.js -o lib/services/README.md",
     "build:plugin-docs": "markdox lib/plugin-api/hydrogen-provider.js lib/plugin-api/hydrogen-kernel.js -o docs/PluginAPI.md",
     "build:docs": "npm run build:plugin-docs && npm run build:services-docs",
-    "build-commit": "npm run clean && build-commit -o dist",
-    "prepare": "npm run build"
+    "build-commit": "npm run clean && build-commit -o dist"
   },
   "atomTestRunner": "atom-jasmine3-test-runner",
   "repository": "https://github.com/nteract/hydrogen",