ENOTEMPTY error during serverless package

This is a (Bug Report / Feature Proposal)

Bug Report

Description

While running serverless package, sometimes I see an error ENOTEMPTY: directory not empty, rmdir ‘c:<path>.webpack<path>’

For bug reports:

• What went wrong?
• What did you expect should have happened?
• What was the config you used?
• What stacktrace or error message from your provider did you see?

Serverless: Packaging service...

  Error --------------------------------------------------

  ENOTEMPTY: directory not empty, rmdir 'c:\...\.webpack\...'

     For debugging logs, run again after setting the "SLS_DEBUG=*" environment variable.

  Stack Trace --------------------------------------------

Error: ENOTEMPTY: directory not empty, rmdir '...\.webpack\...'
    at Object.fs.rmdirSync (fs.js:846:18)
    at rmkidsSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:304:27)
    at rmdirSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:281:7)
    at rimrafSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:252:7)
    at options.readdirSync.forEach.f (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:291:39)
    at Array.forEach (<anonymous>)
    at rmkidsSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:291:26)
    at rmdirSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:281:7)
    at Object.rimrafSync (c:\...\node_modules\serverless-webpack\node_modules\fs-extra\lib\remove\rimraf.js:252:7)
    at ServerlessWebpack.cleanup (c:\...\node_modules\serverless-webpack\lib\cleanup.js:13:11)
From previous event:
    at PluginManager.invoke (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:390:22)
    at PluginManager.run (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\classes\PluginManager.js:421:17)
    at variables.populateService.then.then (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:157:33)
    at runCallback (timers.js:810:20)
    at tryOnImmediate (timers.js:768:5)
    at processImmediate [as _immediateCallback] (timers.js:745:5)
From previous event:
    at Serverless.run (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\lib\Serverless.js:144:8)
    at serverless.init.then (C:\Users\...\AppData\Roaming\npm\node_modules\serverless\bin\serverless:43:50)
    at <anonymous>

  Get Support --------------------------------------------
     Docs:          docs.serverless.com
     Bugs:          github.com/serverless/serverless/issues
     Issues:        forum.serverless.com

  Your Environment Information -----------------------------
     OS:                     win32
     Node Version:           8.12.0
     Serverless Version:     1.32.0

For feature proposals:

• What is the use case that should be solved. The more detail you describe this in the easier it is to understand for us.
• If there is additional config how would it look

Similar or dependent issue(s):

• https://github.com/johnagan/clean-webpack-plugin/issues/59

Additional Data

• Serverless-Webpack Version you’re using: 5.2.0
• Webpack version you’re using: 4.20.2
• Serverless Framework Version you’re using: 1.32.0
• Operating System: Windows
• Stack Trace (if available): Above

[ariel-frischer]

I’m getting this without serverless webpack…

[mwoodsmall]

It is happening when trying to cleanup the output directory, so a workaround is to set this in your serverless.yml file:

custom:
  webpack:
    keepOutputDirectory: true

With that set it won’t attempt to cleanup the .webpack directory