Add script to build desktop web/buildinfo artifacts

.github/workflows/anki_artifacts.yml

@@ -0,0 +1,33 @@
+name: Build web/build artifacts from upstream
+on:
+    workflow_dispatch:
+    push:
+    schedule:
+        - cron: "0 0 * * *"
+    pull_request:
+
+concurrency:
+    group: ${{ github.workflow }}-${{ github.ref }}
+    cancel-in-progress: true
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        timeout-minutes: 80
+        steps:
+            - uses: actions/checkout@v2
+
+            # todo: cache bazel folder
+
+            - name: Build artifacts
+              run: |
+                  curl -L https://github.com/bazelbuild/bazelisk/releases/download/v1.10.1/bazelisk-linux-amd64 -o ./bazel
+                  chmod +x bazel
+                  ./tools/build-ankidroid-artifacts.sh
+
+            - name: Upload artifacts
+              uses: actions/upload-artifact@v2
+              with:
+                  name: anki_artifacts
+                  if-no-files-found: error
+                  path: droid

tools/build-ankidroid-artifacts.sh

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+bazel build buildinfo.txt ts/...
+mkdir -p droid/web
+rsync -a .bazel/bin/buildinfo.txt droid
+for i in card-info graphs deck-options change-notetype congrats; do
+    cp -av .bazel/bin/ts/$i/$i.{html,js,css} droid/web/
+done