web: Migrate to npm workspaces

.github/workflows/release_nightly.yml

@@ -267,7 +267,7 @@ jobs:
         working-directory: web
         shell: bash -l {0}
         run: |
-          npm run bootstrap
+          npm ci
           npm run build
           npm run docs
 

.github/workflows/test_web.yml

@@ -45,6 +45,10 @@ jobs:
         with:
           node-version: ${{ matrix.node_version }}
 
+      # Node.js 14 comes with npm 6, but we need npm 7 or newer.
+      - name: Upgrade npm
+        run: npm install -g npm
+
       - name: Install Rust toolchain
         uses: actions-rs/toolchain@v1
         with:
@@ -72,7 +76,7 @@ jobs:
         working-directory: web
         shell: bash -l {0}
         run: |
-          npm run bootstrap
+          npm ci
           npm run build
 
       - name: Check formatting

web/.gitignore

@@ -6,8 +6,8 @@ _logs/
 anonymous-cli-metrics.json
 
 /npm-debug.log*
-/lerna-debug.log*
-
-/package.json.lerna_backup
 
+# npm workspaces should not have a `package-lock.json`,
+# but it's still generated when doing `npm install` inside
+# of them.
 /packages/**/package-lock.json

web/README.md

@@ -48,10 +48,12 @@ For the compiler to be able to output WebAssembly, an additional target has to b
 
 #### Node.js
 
-Follow the instructions [to install node.js](https://nodejs.org/en/) on your machine.
+Follow the instructions to [install Node.js](https://nodejs.org/) on your machine.
 
 We recommend using the currently active LTS 16, but we do also run tests with maintenance LTS 14.
 
+Note that npm 7 or newer is required. It should come bundled with Node.js 15 or newer, but can be upgraded with older Node.js versions using `npm install -g npm` as root/Administrator.
+
 #### wasm-bindgen
 
 <!-- Be sure to also update the wasm-bindgen-cli version in `.github/workflows/*.yml` and `web/Cargo.toml`. -->
@@ -75,7 +77,7 @@ Just make sure the `wasm-opt` program is in `$PATH`, and that it works.
 
 In this project, you may run the following commands to build all packages:
 
--   `npm run bootstrap`
+-   `npm install`
     -   This will install every dependency for every package.
     -   Run this every time you pull in new changes, otherwise you may be missing a package and the build will fail.
 -   `npm run build`