(core) regularly freshen grist-core:latest docker image

Summary:
 * Keeps `grist-core:latest` docker image up to date with grist-core
   source, with a daily cron job.
 * Update yarn.lock file.
 * In passing, tag current version for a versioned release.

When a push to `main` branch passes tests, the result is placed in `latest_candidate` branch. The cron job will update docker up from `latest_candidate`, placing code used for image in `latest` branch.

Test Plan: tested in a grist-core fork

Reviewers: georgegevoian

Reviewed By: georgegevoian

Differential Revision: https://phab.getgrist.com/D3156

.github/workflows/docker.yml

@@ -18,5 +18,5 @@ jobs:
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}
-          repository: gristlabs/grist
+          repository: ${{ github.repository }}
           tag_with_ref: true

.github/workflows/docker_latest.yml

@@ -0,0 +1,35 @@
+name: Push latest Docker image
+
+on:
+  push:
+    # Trigger if latest_candidate updates. This is automatically done by another
+    # workflow whenever tests pass on main - but events don't chain without using
+    # personal access tokens so we just use a cron job.
+    branches: [ latest_candidate ]
+  schedule:
+    # Run at 5:41 UTC daily
+    - cron:  '41 5 * * *'
+  workflow_dispatch:
+
+jobs:
+  push_to_registry:
+    name: Push latest Docker image to Docker Hub
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out the repo
+        uses: actions/checkout@v2
+        with:
+          ref: latest_candidate
+      - name: Push to Docker Hub
+        uses: docker/build-push-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+          repository: ${{ github.repository }}
+          tags: latest
+      - name: Update latest branch
+        uses: ad-m/github-push-action@8407731efefc0d8f72af254c74276b7a90be36e1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: latest
+          force: true

.github/workflows/main.yml

@@ -43,3 +43,11 @@ jobs:
 
       - name: Run tests
         run: VERBOSE=1 DEBUG=1 MOCHA_WEBDRIVER_HEADLESS=1 yarn run test
+
+      - name: Update candidate branch
+        if: ${{ github.event_name == 'push' }}
+        uses: ad-m/github-push-action@8407731efefc0d8f72af254c74276b7a90be36e1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: latest_candidate
+          force: true

package.json

@@ -1,6 +1,6 @@
 {
   "name": "grist-core",
-  "version": "0.7.3",
+  "version": "0.7.4",
   "license": "Apache-2.0",
   "description": "Grist is the evolution of spreadsheets",
   "homepage": "https://github.com/gristlabs/grist-core",

yarn.lock

@@ -3269,13 +3269,13 @@ graceful-fs@^4.1.6, graceful-fs@^4.2.0, graceful-fs@^4.2.2:
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.6.tgz#ff040b2b0853b23c3d31027523706f1885d76bee"
   integrity sha512-nTnJ528pbqxYanhpDYsi4Rd8MAeaBA67+RZ10CM1m3bTAVFEDcd5AuA4a6W5YkGZ1iNXHzZz8T6TBKLeBuNriQ==
 
-grain-rpc@0.1.6:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/grain-rpc/-/grain-rpc-0.1.6.tgz#85928758705a47d0e2cb2d07626dd480cbf60cec"
-  integrity sha1-hZKHWHBaR9Diyy0HYm3UgMv2DOw=
+grain-rpc@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/grain-rpc/-/grain-rpc-0.1.7.tgz#e69dcba6a5788f0a20542a427de6f708cf0699e8"
+  integrity sha512-ExN19s6e/VfiQQupb52uI9yIz2FWgL702yelYn3N4sS5/+jkDjC4MhLNJpfp8LxAdBIknJ3kTztzVz+PdRpBVg==
   dependencies:
     events "^1.1.1"
-    ts-interface-checker "^0.1.3"
+    ts-interface-checker "^1.0.0"
 
 grainjs@1.0.1, grainjs@^1.0.1:
   version "1.0.1"
@@ -7006,10 +7006,10 @@ trim-newlines@^1.0.0:
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-1.0.0.tgz#5887966bb582a4503a41eb524f7d35011815a613"
   integrity sha1-WIeWa7WCpFA6QetST301ARgVphM=
 
-ts-interface-checker@0.1.6, ts-interface-checker@^0.1.3:
-  version "0.1.6"
-  resolved "https://registry.yarnpkg.com/ts-interface-checker/-/ts-interface-checker-0.1.6.tgz#89e7e0df05b254e591f2923bd2a2c261f4320dbf"
-  integrity sha512-vuhYd/G9vX11FQPUUp0YWJ8AKQn68VlCKVzAXMuN5/4lVtGtlnDsCfo8QkkCAb6db9xoxg11QixGeggH5NCF3A==
+ts-interface-checker@1.0.2, ts-interface-checker@^1.0.0:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/ts-interface-checker/-/ts-interface-checker-1.0.2.tgz#63f73a098b0ed34b982df1f490c54890e8e5e0b3"
+  integrity sha512-4IKKvhZRXhvtYF/mtu+OCfBqJKV6LczUq4kQYcpT+iSB7++R9+giWnp2ecwWMIcnG16btVOkXFnoxLSYMN1Q1g==
 
 tslib@^1.9.0:
   version "1.13.0"