add .hcl to supported file filter

[jessebye]

Quick fix for #728 until this is implemented.

Allows for using Atlantis with Terragrunt 0.19 style terragrunt.hcl config.

All tests passing.

[codecov]

Codecov Report

Merging #748 into master will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff           @@
##           master     #748   +/-   ##
=======================================
  Coverage   72.25%   72.25%           
=======================================
  Files          62       62           
  Lines        4728     4728           
=======================================
  Hits         3416     3416           
  Misses       1057     1057           
  Partials      255      255

Impacted Files	Coverage Δ
server/events/project_finder.go	93.82% <100%> (ø)	⬆️

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[jessebye]

@lkysow any chance of this shipping at least as a short-term measure until you can add a top-level autoplan.when_modified? We are stuck not being able to use atlantis after the Terragrunt 0.19/Terraform 0.12 upgrade due to this issue.

[lkysow]

Hi Jesse,
Thanks for the PR. Can you scope this down further to only matching terragrunt.hcl? This won't break backwards compatibility (as much).

Also please add a test for this change and document the new config here: https://www.runatlantis.io/docs/custom-workflows.html#terragrunt

[jessebye]

@lkysow I made those changes, would you mind reviewing again? 🙏

[lkysow]

Can you call this section Terragrunt 0.19+

[jessebye]

So this actually applies to Terragrunt 0.18 as well. I think it could be confusing to call it Terragrunt 0.19+ since it really applies to all versions.

[lkysow]

So is the section above where we tell people to list all the projects obsolete then?

[jessebye]

I think there still might be a place for the above config. It depends on how you're using Terragrunt, really. If you have just a few modules then listing out each project works well. But if you have a ton of modules (like we do) then it makes more sense to use autoplan.

[lkysow]

Everything looks good, thanks for the PR! 🚢