Use terraform-docs native saving to file

[khos2ow]

In terraform-docs v0.12.0, we've added ability to insert generated output directly into a target file (terraform-docs/terraform-docs#286)! This can replace all the sed/awk/perl and drastically simplify the process to the point of only executing:

terraform-docs --output-file README.md --output-mode inject .

Check out all the available option to configure this.

We've just cut a v0.12.0-beta.1 for folks to start experimenting. Please feel free to start using and file any issues or feedback.

[antonbabenko]

Thanks a lot for the update!

That would be really nice if we can remove sed/awk/perl hack which was there since pre-0.12 times :)

I don't have time for this work myself but maybe someone from the community can make a PR.

[jonmaestas]

Does it make sense to deprecate terraform_docs_without_aggregate_type_defaults and terraform_docs_replace?

Why not just support native terraform-docs usage similar to how tflint is setup? It seems like the other terraform_docs_* options were there because of the lack of features out-of-the-box with terraform-docs at the time, and that's no longer the case.

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