`packer fmt`: support formatting multiple named templates

[tomeon]

Community Note

• Please vote on this issue by adding a 👍 reaction to the original issue to help the community and maintainers prioritize this request
• Please do not leave "+1" or other comments that do not add relevant new information or questions, they generate extra noise for issue followers and do not help prioritize the request
• If you are interested in working on this issue or have submitted a pull request, please leave a comment

Description

This is a request for supporting multiple template and/or directory arguments to packer fmt, rather than the current limitation to a single template (or directory, or stdin). Basically hashicorp/terraform#28191, but for Packer. Related: numtide/treefmt-nix#169.

Use Case(s)

1. Support for/compliance with the treefmt formatter specification, and
2. Greater user control over the precise set of files-to-be-formatted.

Potential configuration

$ packer fmt this.pkr.hcl yet/another.pkrvars.hcl but/wait/theres/more.pkr.hcl

Potential References

• hashicorp/terraform#28191
• numtide/treefmt-nix#169

Thank you in advance for your consideration!

[nywilken]

@tomeon thanks for opening up this request. This looks like a nice enhancement for the fmt command. Thanks for bubbling this up.