migrate from yarn to bun

.github/actions/install/action.yml

@@ -8,23 +8,16 @@ inputs:
 runs:
   using: composite
   steps:
-    - name: Setup Node.js 20.x
+    - name: Setup Node.js
       uses: actions/setup-node@v4
       with:
         node-version-file: '.node-version'
         registry-url: 'https://registry.npmjs.org'
 
-    # - name: install yarn
-    #   shell: bash
-    #   run: npm i yarn -g
-
-    # - name: Install npm
-    #   shell: bash
-    #   run: npm i -g npm@10.8.2
-
-    - name: Install corepack
-      shell: bash
-      run: corepack enable
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v2
+      with:
+        bun-version-file: 'package.json'
 
     # Expo prebuild runs a command like `npm view expo-template-bare-minimum@sdk-53 dist --json`
     # under the hood, which may fail with older npm versions (see https://github.com/npm/cli/issues/7834).
@@ -41,48 +34,29 @@ runs:
         echo "Home dir path: $HOME"
         echo "path=$HOME" >> $GITHUB_OUTPUT
 
-    # - name: Cache Yarn Cache
-    #   uses: cirruslabs/cache@v4
-    #   env:
-    #     cache-name: yarn_cache
-    #   with:
-    #     path: ${{ steps.get-home-dir-path.outputs.path }}/.yarn/berry
-    #     key: ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-${{ hashFiles('yarn.lock') }}
-    #     restore-keys: |
-    #       ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-
-
-    # - name: Cache node_modules
-    #   uses: cirruslabs/cache@v4
-    #   env:
-    #     cache-name: node_modules
-    #   with:
-    #     path: '**/node_modules'
-    #     key: ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-${{ hashFiles('packages/vxrn/src/utils/depPatches.ts') }}-${{ hashFiles('yarn.lock') }}
-    #     restore-keys: |
-    #       ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-${{ hashFiles('packages/vxrn/src/utils/depPatches.ts') }}-
-
-    # - name: Cache Playwright
-    #   uses: cirruslabs/cache@v4
-    #   env:
-    #     cache-name: playwright_cache
-    #   with:
-    #     path: ${{ steps.get-home-dir-path.outputs.path }}/.cache/ms-playwright
-    #     key: ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-${{ hashFiles('yarn.lock') }}
-    #     restore-keys: |
-    #       ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-
+    - name: Cache Bun
+      uses: actions/cache@v4
+      env:
+        cache-name: bun_cache
+      with:
+        path: ~/.bun/install/cache
+        key: ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-${{ hashFiles('bun.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-${{ env.cache-name }}${{ inputs.workspace-focus && format('-{0}', inputs.workspace-focus) || '' }}-
 
     - name: Install Dependencies
       shell: bash
-      run: ${{ inputs.workspace-focus && format('yarn workspaces focus vxrn-monorepo {0}', inputs.workspace-focus) || 'yarn install'}}
+      # Always do full install to ensure devDependencies of workspace packages are available for builds
+      run: bun install
 
     - name: Install Playwright
       shell: bash
       run: npx playwright install
 
     - name: Clean Build
       shell: bash
-      run: ${{ inputs.workspace-focus && format('yarn workspaces foreach -Rpt --from "{0}" run clean:build', inputs.workspace-focus) || 'yarn clean:build'}}
+      run: ${{ inputs.workspace-focus && format('bunx turbo run clean:build --filter={0}...', inputs.workspace-focus) || 'bun run clean:build'}}
 
     - name: Build
       shell: bash
-      run: ${{ inputs.workspace-focus && format('yarn workspaces foreach -Rpt --from "{0}" run build', inputs.workspace-focus) || 'yarn build'}}
+      run: ${{ inputs.workspace-focus && format('bunx turbo run build --filter={0}...', inputs.workspace-focus) || 'bun run build'}}

.github/workflows/build-ios-test-container-app.yml

@@ -9,7 +9,7 @@ env:
   # A unique ID to identify the app on GitHub Actions, this is used as part of cache keys and artifact names, must be unique among all workflows
   app_id: ios-rn-test-container-app
   # The command used to prebuild the app
-  prebuild_command: yarn prebuild:native --platform ios --no-install # --no-install is used to skip installing dependencies, specifically `pod install` as we want to do it after the Cache Pods step
+  prebuild_command: bun run prebuild:native --platform ios --no-install # --no-install is used to skip installing dependencies, specifically `pod install` as we want to do it after the Cache Pods step
 
   # These should be set in the repository secrets
   # Redis database used for caching and remembering things between runs, such as the last build number
@@ -68,12 +68,12 @@ jobs:
         env:
           # A hash that can save us more time if we can already know that the build hash will not change.
           #
-          # Calculating the build_hash relies on generated files, for example, `Podfile.lock`, and it’ll take some time to run `yarn install`, `expo prebuild` and `pod install` in order to get that. But if `yarn.lock` didn’t change, there’s no likely that `Podfile.lock` will change - we can leverage that and skip some installation steps.
+          # Calculating the build_hash relies on generated files, for example, `Podfile.lock`, and it'll take some time to run `bun install`, `expo prebuild` and `pod install` in order to get that. But if `bun.lock` didn't change, there's no likely that `Podfile.lock` will change - we can leverage that and skip some installation steps.
           #
           # This hash MUST be different if the build_hash will be different.
           #
-          # This hash can be different if the build_hash remains the same. For example, if `yarn.lock` changes, `Podfile.lock` may not change if the updated package contains no native code.
-          PRE_BUILD_HASH: ${{ hashFiles('yarn.lock', format('{0}/app.json', env.test_container_app_path), 'packages/vxrn/expo-plugin.cjs') }}
+          # This hash can be different if the build_hash remains the same. For example, if `bun.lock` changes, `Podfile.lock` may not change if the updated package contains no native code.
+          PRE_BUILD_HASH: ${{ hashFiles('bun.lock', format('{0}/app.json', env.test_container_app_path), 'packages/vxrn/expo-plugin.cjs') }}
         run: |
           if [ -z "$PRE_BUILD_HASH" ]; then
             echo '[ERROR] Failed to calculate pre-build hash.'

.github/workflows/checks.yml

@@ -22,16 +22,16 @@ jobs:
         #  workspace-focus: ${{ env.test_app_package_name }}
 
       - name: Security Audit
-        run: yarn npm audit --severity high
+        run: bun audit --audit-level high
 
       - name: Check
-        run: yarn check
+        run: bun run check
 
       # workaround of node_modules/.bin/biome not being executable
       - run: chmod +x node_modules/@biomejs/biome/bin/biome
 
       - name: Lint
-        run: yarn lint
+        run: bun run lint
 
   typecheck:
     runs-on: ubuntu-latest
@@ -46,7 +46,7 @@ jobs:
         #   workspace-focus: ${{ env.test_app_package_name }}
 
       - name: Typecheck
-        run: yarn typecheck
+        run: bun run typecheck
 
   tests:
     # runs-on: ubuntu-latest
@@ -62,4 +62,4 @@ jobs:
         #   workspace-focus: ${{ env.test_app_package_name }}
 
       - name: Test
-        run: yarn test
+        run: bun run test

.github/workflows/test-macos.yml

@@ -17,4 +17,4 @@ jobs:
 
       - name: Test
         run: |
-          yarn test-macos
+          bun run test-macos

.github/workflows/test-native-ios.yml

@@ -127,7 +127,7 @@ jobs:
           SIMULATOR_UDID: ${{ steps.get-simulator-udid.outputs.simulator_udid }}
           IOS_TEST_CONTAINER_PATH_DEV: ${{ github.workspace }}/${{ needs.build-ios-test-container-dev.outputs.built-app-path }}
         run: |
-          yarn workspaces foreach -v -v --exclude vxrn-monorepo -A run test-ios:dev
+          bun run --filter test-test test-ios:dev && bun run --filter test-hmr test-ios:dev
 
       - name: Upload Appium Logs
         uses: actions/upload-artifact@v4.3.1
@@ -239,7 +239,7 @@ jobs:
           SIMULATOR_UDID: ${{ steps.get-simulator-udid.outputs.simulator_udid }}
           IOS_TEST_CONTAINER_PATH_PROD: ${{ github.workspace }}/${{ needs.build-ios-test-container-prod.outputs.built-app-path }}
         run: |
-          yarn workspaces foreach -v -v --exclude vxrn-monorepo -A run test-ios:prod
+          bun run --filter test-test test-ios:prod && bun run --filter test-hmr test-ios:prod
 
       - name: Upload Appium Logs
         uses: actions/upload-artifact@v4.3.1

.gitignore

@@ -13,13 +13,6 @@ apps/*/android/**
 
 docs/.vitepress/cache
 
-.yarn/*
-!.yarn/patches
-!.yarn/plugins
-!.yarn/releases
-!.yarn/sdks
-!.yarn/versions
-
 # temporary packed packages for release, created by scripts/release.ts
 package.tmp.tgz