upgrade to Cypress v6 and fix GitHub actions (#463)

.circleci/config.yml

@@ -113,13 +113,17 @@ workflows:
             - run: npx cypress version --component electron
             - run: npx cypress version --component node
 
-      - cypress/install:
+      - cypress/run:
           name: 'Linux lint'
           requires:
             - Linux install
-          # run all lint checks
-          build: 'npm run build'
+          # the previous job has already installed every dependency
+          # and saved the workspace. "cypress/run" automatically restores the workspace
           install-command: echo 'Already installed'
+          # run all lint checks
+          command: 'npm run build'
+          # this job does not need to save its files
+          no-workspace: true
 
       # runs on 3 machines, load balances tests
       # and records on Cypress Dashboard

.github/workflows/checks.yml

@@ -3,7 +3,7 @@ name: Code analysis
 
 jobs:
   test:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     name: check tests
     steps:
     - uses: actions/checkout@v2

.github/workflows/chrome-80.yml → .github/workflows/chrome-docker.yml

@@ -1,17 +1,18 @@
-name: Chrome 80
+name: Chrome Docker
 
 on: push
 
 jobs:
+  # run Chrome inside a Docker container
   chrome:
     runs-on: ubuntu-latest
     # https://github.com/cypress-io/cypress-docker-images
-    container: cypress/browsers:node13.6.0-chrome80-ff72
+    container: cypress/browsers:node12.18.3-chrome87-ff82
     steps:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Chrome
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 10
         with:
           build: npm run build

.github/workflows/chrome-headless.yml

@@ -4,12 +4,12 @@ on: push
 
 jobs:
   chrome-headless:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     steps:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Headless Chrome
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 10
         with:
           build: npm run build

.github/workflows/chrome.yml

@@ -4,12 +4,12 @@ on: push
 
 jobs:
   chrome:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     steps:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Chrome
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 10
         with:
           build: npm run build

.github/workflows/parallel.yml

@@ -8,7 +8,7 @@ on: push
 jobs:
   install:
     name: Install NPM and Cypress
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     steps:
       - uses: actions/checkout@master
 
@@ -29,6 +29,8 @@ jobs:
       # Any updated archives will be saved automatically after the entire
       # workflow successfully finishes.
       # See https://github.com/actions/cache
+      # we use exact restore key to avoid NPM module snowballing
+      # https://glebbahmutov.com/blog/do-not-let-npm-cache-snowball/
       - name: Cache central NPM modules
         uses: actions/cache@v1
         with:
@@ -37,6 +39,8 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-node-${{ github.ref }}-${{ hashFiles('**/package-lock.json') }}
 
+      # we use the exact restore key to avoid Cypress binary snowballing
+      # https://glebbahmutov.com/blog/do-not-let-cypress-cache-snowball/
       - name: Cache Cypress binary
         uses: actions/cache@v1
         with:
@@ -69,7 +73,7 @@ jobs:
   # anchor definitions yet, thus we cannot put same steps into a template object yet
   test1:
     name: Cypress test 1
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     needs: install
     steps:
       - uses: actions/checkout@master
@@ -133,7 +137,7 @@ jobs:
 
   test2:
     name: Cypress test 2
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     needs: install
     steps:
       - uses: actions/checkout@master

.github/workflows/single.yml

@@ -7,7 +7,7 @@ on: push
 jobs:
   test1:
     name: Cypress test
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     steps:
     - uses: actions/checkout@master
 

.github/workflows/using-action.yml

@@ -6,20 +6,20 @@ on: push
 
 jobs:
   single-run:
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     steps:
       - name: Checkout
         uses: actions/checkout@v1
       - name: Cypress run
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 10
         with:
           build: npm run build
           start: npm start
 
   parallel-runs:
     name: Parallel 4x
-    runs-on: ubuntu-16.04
+    runs-on: ubuntu-18.04
     strategy:
       # when one test fails, DO NOT cancel the other
       # containers, because this will kill Cypress processes
@@ -38,7 +38,7 @@ jobs:
       # because of "record" and "parallel" parameters
       # these containers will load balance all found tests among themselves
       - name: run tests
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 5
         with:
           record: true
@@ -60,7 +60,7 @@ jobs:
       matrix:
         # run 2 copies of the current job in parallel
         # and they will load balance all specs
-        os: ['ubuntu-16.04', 'windows-latest', 'macos-latest']
+        os: ['ubuntu-18.04', 'windows-latest', 'macos-latest']
         machines: [1, 2]
     runs-on: ${{ matrix.os }}
     steps:
@@ -70,7 +70,7 @@ jobs:
       # because of "record" and "parallel" parameters
       # these containers will load balance all found tests among themselves
       - name: run tests
-        uses: cypress-io/github-action@v1
+        uses: cypress-io/github-action@v2
         timeout-minutes: 10
         with:
           record: true