TypeError while launching Wrangler without file extension, ie "./index"

[jgentes]

While using wrangler dev ./index I get

TypeError: Cannot read properties of undefined (reading '0')
    at null.build (/home/jgentes/workers/wrangler2/packages/wrangler/src/dev.tsx:411:15)

This is caused due to the entry value being verbatim what was used as a command line argument, ie. ./index, whereas the entryPoint value in result.metafile.outputs has the extension added to the file, ie ./index.js.

I'm going to submit a PR that uses what esBuild recognizes as the input value in result.metafile.inputs instead of the entry value:

const chunks = Object.entries(result.metafile.outputs).find(
        ([_path, { entryPoint }]) =>
          entryPoint === Object.keys(result.metafile.inputs)[0]
      ) // assumedly only one entry point

[jgentes]

Fixed in #196

[threepointone]

reopening this since it got reverted in #262

[threepointone]

Fixed in #258