support .tf.json files

[jrobison-sb]

• Terraform itself supports .tf.json files, so tfupdate should support them as well. Currently it seems that it does not.

  
  $ cat main.tf
  terraform {
  required_version = "0.13.5"
  }

$ cat main.tf.json { "terraform": { "required_version": "= 0.13.5" } }

$ tfupdate terraform -v 0.14.11 -r ./

$ cat main.tf terraform { required_version = "0.14.11" }

$ cat main.tf.json { "terraform": { "required_version": "= 0.13.5" } }

[minamijoyo]

@jrobison-sb Thank you for your proposal!

It's technically possible, but the current implementation heavily depends on the HCL native syntax. I probably won't prioritize this feature for the foreseeable future, but if someone implement this, I would be happy to review it.

Thanks!

[nitrocode]

As a workaround, a tool like json2hcl could be used to convert the json to hcl, then run tfupdate, and convert back using the dame tool