ci: migrate saucelabs tests to GHA

Move Saucelabs testing from CircleCI to GHA

.github/workflows/ci-privileged.yml

@@ -0,0 +1,40 @@
+name: CI
+
+on:
+  push:
+  pull_request_target:
+    types: [opened, synchronize, reopened]
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref }}
+  cancel-in-progress: true
+
+permissions: {}
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  saucelabs:
+    runs-on: ubuntu-latest-4core
+    env:
+      SAUCE_USERNAME: ${{ vars.SAUCE_USERNAME }}
+      SAUCE_ACCESS_KEY: ${{ secrets.SAUCE_ACCESS_KEY }}
+      KARMA_PARALLEL_BROWSERS: 2
+      CI_NODE_INDEX: 0
+      CI_NODE_TOTAL: 1
+      CI_RUNNER_NUMBER: ${{ github.run_id }}
+    steps:
+      - name: Initialize environment
+        uses: angular/dev-infra/github-actions/npm/checkout-and-setup-node@ba9b4487ced515e5b4d87edd681a3bd9792444d6
+        with:
+          cache-node-modules: true
+          # Checking out the pull request commit is intended here as we need to run the changed code tests.
+          ref: ${{ github.event.pull_request.head.sha }}
+      - name: Install node modules
+        run: yarn install --frozen-lockfile
+      - name: Setup Bazel
+        uses: angular/dev-infra/github-actions/bazel/setup@ba9b4487ced515e5b4d87edd681a3bd9792444d6
+      - name: Run tests in Saucelabs
+        run: ./scripts/circleci/run-saucelabs-tests.sh

scripts/saucelabs/start-tunnel.sh

@@ -29,8 +29,8 @@ rm ${tunnelFileName}
 # Command arguments that will be passed to sauce-connect.
 sauceArgs="--readyfile ${tunnelReadyFile} --pidfile ${tunnelPidFile}"
 
-if [ ! -z "${CIRCLE_BUILD_NUM}" ]; then
-  sauceArgs="${sauceArgs} --tunnel-identifier angular-material-${CIRCLE_BUILD_NUM}-${CIRCLE_NODE_INDEX}"
+if [ ! -z "${CI_RUNNER_NUMBER}" ]; then
+  sauceArgs="${sauceArgs} --tunnel-identifier angular-material-${CI_RUNNER_NUMBER}-${CI_NODE_INDEX}"
 fi
 
 echo "Starting Sauce Connect in the background. Passed arguments: ${sauceArgs}"

test/karma.conf.js

@@ -102,12 +102,12 @@ module.exports = config => {
     },
   });
 
-  if (process.env['CIRCLECI']) {
-    const containerInstanceIndex = Number(process.env['CIRCLE_NODE_INDEX']);
-    const maxParallelContainerInstances = Number(process.env['CIRCLE_NODE_TOTAL']);
-    const tunnelIdentifier = `angular-material-${process.env['CIRCLE_BUILD_NUM']}-${containerInstanceIndex}`;
-    const buildIdentifier = `circleci-${tunnelIdentifier}`;
-    const testPlatform = process.env['TEST_PLATFORM'];
+  if (process.env['CI']) {
+    const containerInstanceIndex = Number(process.env['CI_NODE_INDEX']) || 0;
+    const maxParallelContainerInstances = Number(process.env['CI_NODE_TOTAL']) || 1;
+    const tunnelIdentifier = `angular-material-${process.env['CI_RUNNER_NUMBER']}-${containerInstanceIndex}`;
+    const buildIdentifier = `ci-${tunnelIdentifier}`;
+    const testPlatform = 'saucelabs';
 
     // This defines how often a given browser should be launched in the same CircleCI
     // container. This is helpful if we want to shard tests across the same browser.