terragrunt plan should respect -detailed-exitcode

[antonbabenko]

terraform plan -detailed-exitcode may return 0, 1, 2. Official documentation

terragrunt plan -detailed-exitcode currently return 0 or 1.

[brikis98]

Ah, good catch.

[james-gonzalez]

Any update on this?

[brikis98]

@cultavix We haven't had a chance to take a crack at it. Anyone interested in submitting a PR?

Easiest solution is probably to have the checkForErrorsAndExit method in main.go check if the error is of some new type ErrorWithExitCode and if it is, call os.Exit with that code. After that, all you'd have to do is update the RunShellCommand method in run_shell_cmd.go to capture the exit code when there is an error and return an ErrorWithExitCode struct.

[asobrien]

I took a stab at this with PR #98. checkForErrorsAndExit will exit with the underlying error code in the case of an error. I can confirm that this exits with exit code = 2, as expected, when terragrunt plan -detailed-exitcode is called and there are diffs.