Alternative filename spacers when spliting api paths other than @.

Is your feature request related to a problem? Please describe. I’m always frustrated when my filenames deviate too far from the standard of my files. paths/resource@{parameter}.yaml

Describe the solution you’d like It would be nice if you could specify the spacer used when splitting openapi specifications. Instead of @ I would like to specify _ or - through the command i.e openapi split api.yaml --outDir myDir --spacer _

results in paths/resource@{parameter}.yaml

Bundle would need an option to interpret the spacer aswell i.e openapi bundle .... --spacer _

Describe alternatives you’ve considered None.

Additional context I believe the path file name logic is located here https://github.com/Redocly/openapi-cli/blob/master/packages/cli/src/utils.ts#L90

[adamaltman]

@jasonbstanding I think your issue is a bug (it’s different from this issue which is a feature request about the split command). I opened this issue you may want to follow: https://github.com/Redocly/openapi-cli/issues/560

[RomanHotsiy]

@TylerRick thanks for so detailed write up.

We’ll just consider using / as a separator 🙌

We used @ in the first place due to historical reasons, a few years ago our tool did not use $refs and relied on the directory structure to combine paths. In that case having flat file system was much easier. I think it was just a “tunnel vision” to replace @ with _ and not with /. But I’ll have to double-check if we can safely do it and if there are not any other reasons for this 😄