util -> monorepo transition: added CI configuration, fixed bootstrap and build

Author: holgerd77

.github/workflows/node-versions.yml

@@ -75,6 +75,10 @@ jobs:
       - name: Test Tx
         run: npm run test
         working-directory: packages/tx
+      
+      - name: Test Util
+        run: npm run test
+        working-directory: packages/util
 
       - name: Test VM
         run: npm run test:API

.github/workflows/util-build.yml

@@ -7,26 +7,53 @@ on:
       - '*'
   pull_request:
     types: [opened, reopened, synchronize]
+
+env:
+  cwd: ${{github.workspace}}/packages/util
+
+defaults:
+  run:
+    working-directory: packages/util
+
 jobs:
-  test:
+  test-util:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node-version: [10.x, 12.x, 13.x, 14.x]
+        node-version: [12]
 
     steps:
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
-
       - uses: actions/checkout@v2
-      - run: npm install
+        with:
+          submodules: recursive
+    
+    - name: Dependency cache
+        uses: actions/cache@v2
+        id: cache
+        with:
+          key: Util-${{ runner.os }}-${{ matrix.node-version }}-${{ hashFiles('**/package-lock.json') }}
+          path: '**/node_modules'
+
+      # Installs root dependencies, ignoring Bootstrap All script.
+      # Bootstraps the current package only
+      - run: npm install --ignore-scripts && npm run bootstrap:util
+        if: steps.cache.outputs.cache-hit != 'true'
+        working-directory: ${{github.workspace}}
+
+      # Builds current package and the ones it depends from.
+      - run: npm run build:util
+        working-directory: ${{github.workspace}}
 
-      - run: npm run lint
       - run: npm run coverage
 
       - uses: codecov/codecov-action@v1
-        if: matrix.node-version == '12.x'
         with:
-          file: ./coverage/lcov.info
+          file: ${{ env.cwd }}/coverage/lcov.info
+          flags: util
+        if: ${{ matrix.node-version == 12 }}
+
+      - run: npm run lint

package.json

@@ -22,6 +22,7 @@
     "bootstrap:ethash": "npm run bootstrap -- --scope @ethereumjs/ethash",
     "bootstrap:trie": "npm run bootstrap -- --scope merkle-patricia-tree",
     "bootstrap:tx": "npm run bootstrap -- --scope @ethereumjs/tx",
+    "bootstrap:util": "npm run bootstrap -- --scope ethereumjs-util",
     "bootstrap:vm": "npm run bootstrap -- --scope @ethereumjs/vm",
     "build": "lerna run build --stream",
     "build:tree": "lerna run build --stream --include-dependencies",
@@ -33,6 +34,7 @@
     "build:ethash": "npm run build:tree -- --scope @ethereumjs/ethash",
     "build:trie": "npm run build:tree -- --scope merkle-patricia-tree",
     "build:tx": "npm run build:tree -- --scope @ethereumjs/tx",
+    "build:util": "npm run build:tree -- --scope ethereumjs-util",
     "build:vm": "npm run build:tree -- --scope @ethereumjs/vm",
     "lint": "lerna run lint --stream --parallel -- --mode compact",
     "lint:fix": "lerna run lint:fix --stream --parallel",