use npm if package-lock.json is present

saberland · Aug 19, 2019 · 597f760 · 597f760
1 parent 692eda4
commit 597f760
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/packages/saber/lib/cli-commands/eject.js b/packages/saber/lib/cli-commands/eject.js
@@ -137,7 +137,10 @@ module.exports = function(cli) {
           )
 
           const { status } = spawnSync('yarnpkg', ['--version']) // test if yarn is present before allowing it to use the same stdio
-          if (status === 0) {
+          const hasNpmLock = await fs.pathExists(
+            path.join(cwd, 'package-lock.json')
+          )
+          if (status === 0 && !hasNpmLock) {
             await spawn('yarn', ['install'], { stdio: 'inherit' })
           } else {
             await spawn('npm', ['install'], { stdio: 'inherit' })