Migrate from yarn to npm

.github/workflows/build.yaml

@@ -26,14 +26,15 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: latest
-      - run: yarn install --immutable --immutable-cache --check-cache
+          cache: 'npm'
+      - run: npm ci
 
       - name: Package extension
         uses: HaaLeo/publish-vscode-extension@v2
         id: package_extension
         with:
           pat: not-a-real-pat
-          yarn: true
+          yarn: false
           dryRun: true
           preRelease: true
           packagePath: apps/vscode

.github/workflows/publish.yaml

@@ -20,22 +20,23 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: latest
-      - run: yarn install --immutable --immutable-cache --check-cache
+          cache: 'npm'
+      - run: npm ci
 
       - name: Publish to Visual Studio Marketplace
         uses: HaaLeo/publish-vscode-extension@v2
         id: publish_extension
         with:
           pat: ${{ secrets.VS_MARKETPLACE_TOKEN }}
           registryUrl: https://marketplace.visualstudio.com
-          yarn: true
+          yarn: false
           packagePath: apps/vscode
 
       - name: Publish to Open VSX Registry
         uses: HaaLeo/publish-vscode-extension@v2
         with:
             pat: ${{ secrets.OPEN_VSX_TOKEN }}
-            yarn: true
+            yarn: false
             packagePath: apps/vscode
 
       - name: Get version of VS Code extension to publish

.github/workflows/test.yaml

@@ -19,6 +19,7 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: latest
+          cache: 'npm'
 
       - name: Update build environment and install XVFB
         run: |
@@ -29,10 +30,10 @@ jobs:
 
       - name: Build vscode extension
         run: |
-          yarn install
-          yarn run build-vscode
+          npm install
+          npm run build-vscode
 
       - name: Compile and run tests
         run: |
-          yarn install --immutable --immutable-cache --check-cache
-          xvfb-run yarn test-vscode
+          npm ci
+          xvfb-run npm run test-vscode

README.md

@@ -15,11 +15,11 @@ Here is where you can find the source code for various parts of the Quarto syste
 
 ### VS Code Extension
 
-To develop the Quarto VS Code extension, clone this repo, run `yarn`, then run the `yarn dev-vscode` command:
+To develop the Quarto VS Code extension, clone this repo, run `npm install`, then run the `npm run dev-vscode` command:
 
 ```bash
-yarn             # install dependencies
-yarn dev-vscode  # run development/debug version of extension
+npm install             # install dependencies
+npm run dev-vscode      # run development/debug version of extension
 ```
 
 Use the VS Code **Run and Debug** pane in the activity bar to run a version of VS Code with the development build of the extension.

apps/lsp/package.json

@@ -5,7 +5,7 @@
   "license": "agpl-3.0",
   "scripts": {
     "build": "tsx build.ts",
-    "dev": "yarn run build dev",
+    "dev": "npm run build dev",
     "clean": "rm -rf .turbo && rm -rf node_modules && rm -rf dist",
     "lint": "tsc --noEmit && TIMING=1 eslint \"src/**/*.ts*\"",
     "start": "node dist/lsp.js"

apps/vscode/.npmrc

@@ -0,0 +1 @@
+engine-strict=false

apps/vscode/CONTRIBUTING.md

@@ -1,23 +1,23 @@
 # Building the extension
 
-To develop the Quarto VS Code extension, clone the quarto mono-repo, run `yarn` at top level, then run the `yarn dev-vscode` command:
+To develop the Quarto VS Code extension, clone the quarto mono-repo, run `npm install` at top level, then run the `npm run dev-vscode` command:
 
 ```sh
-yarn             # install dependencies
-yarn dev-vscode  # run development/debug version of extension
+npm install             # install dependencies
+npm run dev-vscode      # run development/debug version of extension
 ```
 
 Run the extension tests with:
 
 ```sh
-yarn test-vscode # compile the test files and run them with the vscode-test CLI
+npm run test-vscode # compile the test files and run them with the vscode-test CLI
 ```
 
 Install the dev version of the extension in VS Code or Positron with:
 
 ```sh
-yarn install-vscode
-yarn install-positron
+npm run install-vscode
+npm run install-positron
 ```
 
 # Debugging the extension
@@ -30,7 +30,7 @@ The extension must have been built in dev mode (see the build section). The `dev
 
 Here is the process:
 
-- Let `yarn dev-vscode` run in the background somewhere.
+- Let `npm run dev-vscode` run in the background somewhere.
 
 - Open the `apps/vscode` folder in VS Code or Positron and go to the `Run and debug` pane.
 

apps/vscode/package.json

@@ -1469,11 +1469,11 @@
     "install-vscode": "rm -rf *.vsix && vsce package && code --install-extension *.vsix",
     "install-positron": "rm -rf *.vsix && vsce package && positron --install-extension *.vsix",
     "build": "tsx build.ts",
-    "dev": "yarn run build dev",
+    "dev": "npm run build dev",
     "lint": "eslint src --ext ts",
     "build-lang": "node syntaxes/build-lang",
-    "build-test": "yarn run build test",
-    "test": "yarn build-test && vscode-test"
+    "build-test": "npm run build test",
+    "test": "npm run build-test && vscode-test"
   },
   "dependencies": {
     "axios": "^1.2.1",

claude.md

@@ -19,7 +19,7 @@ Each component has specific development guidelines. Refer to the corresponding C
 
 ## Repository Structure
 
-The repository is organized as a monorepo using Yarn workspaces and Turborepo for build orchestration:
+The repository is organized as a monorepo using npm workspaces and Turborepo for build orchestration:
 
 - `apps/`: Contains standalone applications
   - `vscode/`: VS Code extension for Quarto
@@ -38,19 +38,19 @@ Quarto uses [turborepo](https://turbo.build/) to manage the monorepo build proce
 
 - `turbo.json`: Defines the pipeline configuration for common tasks
 - Common commands:
-  - `yarn build`: Builds all packages and applications
-  - `yarn dev-writer`: Runs the writer app in development mode
-  - `yarn dev-vscode`: Runs the VS Code extension in development mode
-  - `yarn lint`: Runs linters across all workspaces
-  - `yarn build-vscode`: Builds only the VS Code extension and its dependencies
+  - `npm run build`: Builds all packages and applications
+  - `npm run dev-writer`: Runs the writer app in development mode
+  - `npm run dev-vscode`: Runs the VS Code extension in development mode
+  - `npm run lint`: Runs linters across all workspaces
+  - `npm run build-vscode`: Builds only the VS Code extension and its dependencies
 
 The turborepo pipeline helps optimize build times by caching build artifacts and respecting the dependency graph between packages.
 
 ## Testing
 
 Testing procedures vary by component:
 
-- VS Code extension: Run `yarn test-vscode [--label 'label' --grep 'pattern']` to compile test files and run them with the vscode-test CLI
+- VS Code extension: Run `npm run test-vscode [--label 'label' --grep 'pattern']` to compile test files and run them with the vscode-test CLI
   - Read the [test configuration file](./apps/vscode/.vscode-test.mjs) for valid labels
 - Other components have specific test commands defined in their respective package.json files