feat: add linux-arm64 support for codemachine

- Add linux-arm64 package to optionalDependencies
- Update platformMap in codemachine.js and build.ts to include linux-arm64
- Modify build-binaries.yml workflow to build and verify linux-arm64 binary

Author: moazbuilds

.github/workflows/build-binaries.yml

@@ -16,6 +16,9 @@ jobs:
         include:
           - os: ubuntu-latest
             slug: codemachine-linux-x64
+          - os: ubuntu-latest
+            slug: codemachine-linux-arm64
+            target: linux-arm64
           - os: macos-14
             slug: codemachine-darwin-arm64
           - os: macos-13
@@ -40,7 +43,13 @@ jobs:
         run: bun install --frozen-lockfile
 
       - name: Build platform binary
-        run: bun run build
+        shell: bash
+        run: |
+          if [ -n "${{ matrix.target }}" ]; then
+            bun run build --target ${{ matrix.target }}
+          else
+            bun run build
+          fi
 
       - name: Verify cm alias in package.json
         shell: bash
@@ -52,7 +61,7 @@ jobs:
           echo "✅ cm alias verified in package.json"
 
       - name: Test binary execution (Unix)
-        if: runner.os != 'Windows'
+        if: runner.os != 'Windows' && matrix.target == ''
         continue-on-error: true
         run: |
           chmod +x binaries/${{ matrix.slug }}/codemachine
@@ -72,7 +81,20 @@ jobs:
           path: binaries/${{ matrix.slug }}
 
       - name: Smoke test platform binary
+        if: matrix.target == ''
         shell: bash
         run: |
           chmod +x binaries/${{ matrix.slug }}/codemachine* || true
           binaries/${{ matrix.slug }}/codemachine --version
+
+      - name: Verify cross-compiled binary exists
+        if: matrix.target != ''
+        shell: bash
+        run: |
+          if [ -f "binaries/${{ matrix.slug }}/codemachine" ]; then
+            echo "✅ Cross-compiled binary exists: binaries/${{ matrix.slug }}/codemachine"
+            file binaries/${{ matrix.slug }}/codemachine
+          else
+            echo "❌ Binary not found"
+            exit 1
+          fi

bin/codemachine.js

@@ -77,6 +77,7 @@ function runBinary(binaryPath, packageRoot) {
 // Map Node.js platform/arch to our package names
 const platformMap = {
   'linux-x64': { pkg: 'codemachine-linux-x64', bin: 'codemachine' },
+  'linux-arm64': { pkg: 'codemachine-linux-arm64', bin: 'codemachine' },
   'darwin-arm64': { pkg: 'codemachine-darwin-arm64', bin: 'codemachine' },
   'darwin-x64': { pkg: 'codemachine-darwin-x64', bin: 'codemachine' },
   'win32-x64': { pkg: 'codemachine-windows-x64', bin: 'codemachine.exe' },

package.json

@@ -42,6 +42,7 @@
   },
   "optionalDependencies": {
     "codemachine-linux-x64": "0.8.0",
+    "codemachine-linux-arm64": "0.8.0",
     "codemachine-darwin-arm64": "0.8.0",
     "codemachine-darwin-x64": "0.8.0",
     "codemachine-windows-x64": "0.8.0"

scripts/build.ts

@@ -135,6 +135,7 @@ if (watcherVersion) {
 // Map platform/arch to target names
 const platformMap = {
   'linux-x64': { target: 'bun-linux-x64', pkgOs: 'linux', npmOs: 'linux', arch: 'x64', ext: '' },
+  'linux-arm64': { target: 'bun-linux-arm64', pkgOs: 'linux', npmOs: 'linux', arch: 'arm64', ext: '' },
   'darwin-arm64': { target: 'bun-darwin-arm64', pkgOs: 'darwin', npmOs: 'darwin', arch: 'arm64', ext: '' },
   'darwin-x64': { target: 'bun-darwin-x64', pkgOs: 'darwin', npmOs: 'darwin', arch: 'x64', ext: '' },
   // NOTE: npm expects `win32` in the package.json `os` field; using `windows` causes the
@@ -212,7 +213,7 @@ try {
         asset: '[dir]/[name].[ext]', // Preserve original filenames (no hashing)
       },
       compile: {
-        target: target as 'bun-linux-x64' | 'bun-darwin-arm64' | 'bun-darwin-x64' | 'bun-windows-x64',
+        target: target as 'bun-linux-x64' | 'bun-linux-arm64' | 'bun-darwin-arm64' | 'bun-darwin-x64' | 'bun-windows-x64',
         outfile: binaryPath,
       },
       entrypoints: ['./src/runtime/index.ts', manifestPath],