feat(bun): migrate package manager from pnpm to bun

- Replace pnpm-lock.yaml and pnpm-workspace.yaml with bun.lock
- Add bunfig.toml for bun configuration
- Update CI pipeline to use bun commands
- Update lefthook.yaml, tsconfig.json, and turbo.json for bun compatibility
- Update package.json dependencies and scripts
- Update CONTRIBUTING.md documentation
- Add GitHub Actions for bun setup with caching

BREAKING CHANGE: Project now requires bun instead of pnpm for development

.github/actions/setup-bun-with-cache/action.yml

@@ -0,0 +1,46 @@
+name: "Setup Bun with Cache"
+description: "Setup Bun, restore caches, and install dependencies"
+
+inputs:
+  cache-suffix:
+    description: 'Suffix for the cache key (e.g., "build", "playwright")'
+    required: true
+  enable-astro-cache:
+    description: "Whether to enable Astro cache restoration"
+    required: false
+    default: "false"
+  bun-version:
+    description: "Bun version to install"
+    required: false
+    default: "latest"
+
+runs:
+  using: "composite"
+  steps:
+    - name: Restore Turborepo Cache
+      uses: actions/cache@v4
+      with:
+        path: .turbo
+        key: ${{ runner.os }}-turbo-${{ inputs.cache-suffix }}-${{ hashFiles('**/bun.lock') }}
+        restore-keys: |
+          ${{ runner.os }}-turbo-${{ inputs.cache-suffix }}-
+          ${{ runner.os }}-turbo-
+
+    - name: Restore Astro Cache
+      if: inputs.enable-astro-cache == 'true'
+      uses: actions/cache@v4
+      with:
+        path: |
+          .astro
+          node_modules/.astro
+        key: ${{ runner.os }}-astro-${{ hashFiles('**/bun.lock') }}
+        restore-keys: ${{ runner.os }}-astro-
+
+    - name: Setup Bun
+      uses: oven-sh/setup-bun@v2
+      with:
+        bun-version: ${{ inputs.bun-version }}
+
+    - name: Install dependencies
+      shell: bash
+      run: bun install --frozen-lockfile

.github/workflows/ci-pipeline.yml

@@ -16,57 +16,42 @@ jobs:
       contents: read
     outputs:
       exists: ${{ steps.filter.outputs.exists }}
+    env:
+      CI_IGNORE: |
+        *.md
+        .gitignore
+        .gitattributes
+        .vscode/**
     steps:
       - uses: actions/checkout@v4
-
-      - name: Filter changes
-        uses: yumemi-inc/path-filter@v2
-        id: filter
         with:
-          patterns: |
-            **
-            !**.md
-            !.gitignore
-            !.gitattributes
-            !.vscode/**
-            !.env.example
+          fetch-depth: 2
 
-  setup:
-    name: Setup Dependencies
-    needs: check_changes
-    if: ${{ needs.check_changes.outputs.exists == 'true' }}
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Check if node_modules cache exists
-        id: check-node-modules-cache
-        uses: actions/cache@v4
-        with:
-          path: |
-            node_modules
-            */node_modules
-          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/pnpm-lock.yaml') }}
-          lookup-only: true
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: lts/*
-
-      - name: Setup pnpm
-        if: steps.check-node-modules-cache.outputs.cache-hit != 'true'
-        uses: pnpm/action-setup@v4
-        with:
-          run_install: false
-
-      - name: Install dependencies
-        if: steps.check-node-modules-cache.outputs.cache-hit != 'true'
-        run: pnpm install --frozen-lockfile
+      - id: filter
+        shell: bash
+        run: |
+          # Determine the commit to diff against (push vs PR)
+          if [[ "$GITHUB_EVENT_NAME" == "pull_request" ]]; then
+            BASE_SHA="${{ github.event.pull_request.base.sha }}"
+          else
+            BASE_SHA="${{ github.event.before }}"
+          fi
+          # List changed files between BASE_SHA and current HEAD
+          CHANGED=$(git diff --name-only "$BASE_SHA" "$GITHUB_SHA")
+          # Identify ignored files based on CI_IGNORE patterns
+          IGNORED=$(echo "$CHANGED" | git check-ignore --stdin --exclude-from=<(printf '%s\n' "$CI_IGNORE") || true)
+          # Remove ignored files from the changed list
+          FILTERED=$(comm -23 <(echo "$CHANGED" | sort) <(echo "$IGNORED" | sort))
+          # Output result for downstream jobs
+          if [[ -z "$FILTERED" ]]; then
+            echo "exists=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "exists=true" >> "$GITHUB_OUTPUT"
+          fi
 
   quality_checks:
     name: ${{ matrix.name }}
-    needs: [check_changes, setup]
+    needs: [check_changes]
     if: ${{ needs.check_changes.outputs.exists == 'true' }}
     runs-on: ubuntu-latest
     strategy:
@@ -85,43 +70,34 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - name: Restore Turborepo Cache
-        uses: actions/cache@v4
+      - name: Setup Bun with Cache
+        uses: ./.github/actions/setup-bun-with-cache
         with:
-          path: .turbo
-          key: ${{ runner.os }}-turbo-${{ matrix.check }}-${{ github.sha }}
-          restore-keys: ${{ runner.os }}-turbo-${{ matrix.check }}-
-
-      - name: Restore node_modules cache
-        id: cache
-        uses: actions/cache/restore@v4
-        with:
-          path: |
-            node_modules
-            */node_modules
-          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: ${{ runner.os }}-node-modules-
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: lts/*
-
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          run_install: false
-
-      - name: Install dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: pnpm install --frozen-lockfile
+          cache-suffix: ${{ matrix.check }}
 
       - name: Run ${{ matrix.name }}
-        run: pnpm exec turbo run ${{ matrix.check }}
+        run: bunx turbo run ${{ matrix.check }}
+
+  build:
+    name: Build
+    needs: [check_changes]
+    if: ${{ needs.check_changes.outputs.exists == 'true' }}
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Setup Bun with Cache
+        uses: ./.github/actions/setup-bun-with-cache
+        with:
+          cache-suffix: build
+          enable-astro-cache: "true"
+
+      - name: Run Build
+        run: bunx turbo run build
 
   playwright:
     name: Playwright Tests
-    needs: [check_changes, setup]
+    needs: [check_changes, build]
     if: ${{ needs.check_changes.outputs.exists == 'true' }}
     runs-on: ubuntu-latest
     steps:
@@ -129,49 +105,23 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Restore Turborepo Cache
-        uses: actions/cache@v4
+      - name: Setup Bun with Cache
+        uses: ./.github/actions/setup-bun-with-cache
         with:
-          path: .turbo
-          key: ${{ runner.os }}-turbo-${{ github.sha }}
-          restore-keys: ${{ runner.os }}-turbo-
-
-      - name: Restore node_modules cache
-        id: cache
-        uses: actions/cache/restore@v4
-        with:
-          path: |
-            node_modules
-            */node_modules
-          key: ${{ runner.os }}-node-modules-${{ hashFiles('**/pnpm-lock.yaml') }}
-          restore-keys: ${{ runner.os }}-node-modules-
-
-      - name: Setup Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: lts/*
-
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          run_install: false
-
-      - name: Install dependencies
-        if: steps.cache.outputs.cache-hit != 'true'
-        run: pnpm install --frozen-lockfile
+          cache-suffix: playwright
 
       - name: Cache Playwright Browsers
         uses: actions/cache@v4
         with:
           path: ~/.cache/ms-playwright
-          key: ${{ runner.os }}-playwright-${{ hashFiles('**/pnpm-lock.yaml') }}
+          key: ${{ runner.os }}-playwright-${{ hashFiles('**/bun.lock') }}
           restore-keys: ${{ runner.os }}-playwright-
 
       - name: Install Playwright Browsers
-        run: pnpm exec playwright install --with-deps
+        run: bunx playwright install --with-deps
 
       - name: Run Playwright Tests
-        run: pnpm exec turbo run test:playwright
+        run: bunx turbo run test:playwright
         timeout-minutes: 10
 
   verify:

.prettierignore

@@ -17,7 +17,7 @@ test-results/
 # Package files
 package-lock.json
 yarn.lock
-pnpm-lock.yaml
+bun.lock
 
 # Config files that should maintain their format
 wrangler.toml

CONTRIBUTING.md

@@ -28,8 +28,8 @@ git checkout -b <BRANCH_NAME>
 5. Start the development environment.
 
 ```bash
-pnpm install
-pnpm dev
+bun install
+bun dev
 ```
 
 6. Make your changes.

bunfig.toml

@@ -0,0 +1,7 @@
+[install.scopes]
+# Only built dependencies
+"@esbuild" = { "trustedDependencies" = ["esbuild"] }
+"@lefthook" = { "trustedDependencies" = ["lefthook"] }
+"@sharp" = { "trustedDependencies" = ["sharp"] }
+"@unrs-resolver" = { "trustedDependencies" = ["unrs-resolver"] }
+"@workerd" = { "trustedDependencies" = ["workerd"] } 

cspell.json

@@ -11,6 +11,7 @@
     "Brhm",
     "Briel",
     "bryan",
+    "bunx",
     "canoa",
     "Canoa",
     "cfasync",
@@ -87,7 +88,7 @@
     "*.bundle.js",
     "package-lock.json",
     "yarn.lock",
-    "pnpm-lock.yaml"
+    "bun.lock"
   ],
   "allowCompoundWords": true,
   "dictionaries": ["typescript", "node", "html", "css", "bash", "npm", "es-es"],

lefthook.yaml

@@ -5,18 +5,18 @@ pre-commit:
       priority: 1
       glob: "*.{js,cjs,mjs,jsx,ts,cts,mts,tsx,d.ts,md,mdx,yaml,yml,json,html,css,astro}"
       run: |
-        pnpm prettier {staged_files} --write --list-different
+        bun prettier {staged_files} --write --list-different
       stage_fixed: true
 
     eslint:
       priority: 2
       run: |
-        pnpm lefthook run eslint
+        bun lefthook run eslint
 
     cspell:
       priority: 3
       run: |
-        pnpm lefthook run cspell
+        bun lefthook run cspell
 
 eslint:
   commands:
@@ -28,7 +28,7 @@ eslint:
         - playwright-report/**
         - test-results/**
       run: |
-        pnpm eslint {staged_files} --max-warnings=0 --fix --cache
+        bun eslint {staged_files} --max-warnings=0 --fix --cache
       stage_fixed: true
 
 cspell:
@@ -36,17 +36,17 @@ cspell:
     base:
       glob: "*.{js,cjs,mjs,jsx,ts,cts,mts,tsx,d.ts,astro,json,yaml,yml,md,mdx}"
       run: |
-        pnpm cspell {staged_files}
+        bun cspell {staged_files}
       stage_fixed: true
 
 commit-msg:
   commands:
     commitlint:
       run: |
-        pnpm commitlint --edit {1}
+        bun commitlint --edit {1}
 
 post-merge:
   commands:
-    pnpm:
-      glob: "{package.json,pnpm-lock.yaml}"
-      run: pnpm install
+    bun:
+      glob: "{package.json,bun.lock}"
+      run: bun install

package.json

@@ -3,9 +3,9 @@
   "type": "module",
   "version": "0.0.1",
   "engines": {
-    "pnpm": "^10.0.0"
+    "bun": "^1.0.0"
   },
-  "packageManager": "pnpm@10.12.1",
+  "packageManager": "bun@1.2.16",
   "scripts": {
     "dev": "astro dev --port 3000",
     "start": "astro preview --port 3000",
@@ -22,6 +22,7 @@
     "test": "vitest run",
     "test:coverage": "vitest --coverage",
     "test:playwright": "playwright test --reporter=list",
+    "test:e2e": "turbo run test:playwright",
     "prepare": "lefthook install"
   },
   "dependencies": {

pnpm-workspace.yaml

@@ -1,6 +0,0 @@
-onlyBuiltDependencies:
-  - esbuild
-  - lefthook
-  - sharp
-  - unrs-resolver
-  - workerd

tsconfig.json

@@ -6,8 +6,7 @@
     "baseUrl": ".",
     "paths": {
       "~/*": ["./src/*"]
-    },
-    "types": ["@vitest/browser/providers/playwright"]
+    }
   },
   "suppressImplicitAnyIndexErrors": true
 }

turbo.json

@@ -18,6 +18,7 @@
     },
     "build": {
       "cache": true,
+      "inputs": ["**/*.{ts,tsx,js,jsx,astro,json,yml,yaml}"],
       "outputs": ["dist/**"]
     },
     "test": {