Migrate javascript/ from Yarn Classic to Yarn Berry

.github/workflows/Publish.yaml

@@ -56,6 +56,9 @@ jobs:
         with:
           node-version-file: 'javascript/package.json'
 
+      - name: Enable corepack
+        run: corepack enable
+
       - name: Install JS dependencies
         run: yarn install
         working-directory: javascript
@@ -129,6 +132,9 @@ jobs:
 #         node-version-file: 'javascript/package.json'
 #         registry-url: 'https://registry.npmjs.org' # Setup .npmrc file to publish to npm
 
+#     - name: Enable corepack
+#       run: corepack enable
+
 #     - name: Install JS dependencies
 #       run: yarn install
 #       working-directory: javascript

.github/workflows/PublishDev.yaml

@@ -34,6 +34,9 @@ jobs:
           node-version-file: 'javascript/package.json'
           registry-url: 'https://registry.npmjs.org'
 
+      - name: Enable corepack
+        run: corepack enable
+
       - name: Install JS dependencies
         run: yarn install
         working-directory: javascript

.github/workflows/QA.yaml

@@ -91,6 +91,9 @@ jobs:
         with:
           node-version-file: 'javascript/package.json'
 
+      - name: Enable corepack
+        run: corepack enable
+
       - name: Install JS dependencies
         working-directory: javascript
         run: yarn install

.github/workflows/Tests.yaml

@@ -99,6 +99,9 @@ jobs:
         with:
           node-version-file: 'javascript/package.json'
 
+      - name: Enable corepack
+        run: corepack enable
+
       - name: Install JS dependencies
         run: yarn install
         working-directory: javascript

.gitignore

@@ -253,6 +253,7 @@ $RECYCLE.BIN/
 .vscode
 src/libzim-stubs
 javascript/node_modules
+javascript/.yarn/*
 
 # rule files are generated by rules/generate_rules.py
 src/zimscraperlib/rewriting/rules.py

CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Upgrade Python and Javascript dependencies (#319)
+- Migrate `javascript/` from Yarn Classic to Yarn Berry (#320)
 
 ## [5.4.0] - 2026-05-28
 

javascript/.yarnrc.yml

@@ -0,0 +1 @@
+nodeLinker: node-modules

javascript/package.json

@@ -42,5 +42,6 @@
   },
   "engines": {
     "node": ">=26.0.0 <27.0.0"
-  }
+  },
+  "packageManager": "yarn@4.17.1"
 }