[Bug] ignores the files not starting with `.js` extension by default about jscodeshift

[trivikr]

cc participants from previous discussion for awareness @robcmills @Daniel15 @lg-kialo

[trivikr]

There are two solutions I can think of for updated default value of extensions:

• All supported extensions, like it's done in aws/aws-sdk-js-codemod#767
  • Backward compatible with <=0.15.0, as all extensions were processed anyway though js was default.
• Read all extensions available in the glob, as set them as default
  • Requires jscodeshift to do extra work, i.e. reading extensions of all files.

[trivikr]

Example fix which allows all extensions by default #583

Although this fixes the regression, it will send all files for processing by default and will have a performance impact if the folder has lot of files.

[danieldelcore]

I find folks trip over this quite often. My thinking with @hypermod/cli was to turn on all extensions by default and parse them with the TSX parser since it's a large superset of js/jsx/ts (there are some minor caveats here in the form of generic syntax between ts and TSX, perhaps TS would have been a better way to go 😬).

https://github.com/hypermod-io/hypermod-community/blob/3b4722329bed3f02ac56c23c89925e6b906b9fa7/packages/cli/src/index.ts#L37-L49

[trivikr]

I posted a safer fix at #584, which explicitly passes supported JavaScript and TypeScript files.