follow proxy settings (#105)

.github/workflows/workflow.yml

@@ -1,25 +1,81 @@
 name: Main workflow
-on: [push]
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - releases/*
+
 jobs:
-  run:
-    name: Run
+  build:
     runs-on: ${{ matrix.operating-system }}
     strategy:
       matrix:
         operating-system: [ubuntu-latest, windows-latest]
     steps:
-    - uses: actions/checkout@master
-    
-    - name: Set Node.js 10.x
-      uses: actions/setup-node@master
-      with:
-        version: 10.x
+      - uses: actions/checkout@v2
+      - name: Setup node 12
+        uses: actions/setup-node@v1
+        with:
+          node-version: 12.x
+      - run: npm ci
+      - run: npm run build
+      - run: npm run format-check
+      - run: npm run pack
+      - run: npm test
+      - name: Verify no unstaged changes
+        if: runner.os != 'windows'
+        run: __tests__/verify-no-unstaged-changes.sh
 
-    - name: npm install
-      run: npm install
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clear tool cache
+        run: rm -rf $RUNNER_TOOL_CACHE/*
+      - name: Setup node 10
+        uses: ./
+        with:
+          node-version: 10.x
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh 10
 
-    - name: Lint
-      run: npm run format-check
+  test-proxy:
+    runs-on: ubuntu-latest
+    container:
+      image: ubuntu:latest
+      options: --dns 127.0.0.1
+    services:
+      squid-proxy:
+        image: datadog/squid:latest
+        ports:
+          - 3128:3128
+    env:
+      https_proxy: http://squid-proxy:3128
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clear tool cache
+        run: rm -rf $RUNNER_TOOL_CACHE/*
+      - name: Setup node 10
+        uses: ./
+        with:
+          node-version: 10.x
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh 10
 
-    - name: npm test
-      run: npm test
+  test-bypass-proxy:
+    runs-on: ubuntu-latest
+    env:
+      https_proxy: http://no-such-proxy:3128
+      no_proxy: github.com,nodejs.org,registry.npmjs.org
+    steps:
+      - uses: actions/checkout@v2
+      - name: Clear tool cache
+        run: rm -rf $RUNNER_TOOL_CACHE/*
+      - name: Setup node 10
+        uses: ./
+        with:
+          node-version: 10.x
+      - name: Verify node and npm
+        run: __tests__/verify-node.sh 10