Atlantis: Repo checkout root dir variable in custom flows

[crisp2u]

Hi guys, sorry if this ha been answered but I could not find any info regarding this. I'm playing with custom flows and I wanted to see if I can run some checks after the plan is generated. Specifically I'm trying to run terraform-compliance. That tool requires a plan and also a folder/repo with the features specs to check. That folder in my case is in the repo's root. Now, I can see I have PLANFILE with the location of the plan file and DIR for the current folder (where the plan is executed) but I have no way to find out the root folder where the repo is checked out.

I think is composed like this: /home/atlantis/.atlantis/repos/${BASE_REPO_OWNER}/${BASE_REPO_NAME}/${PULL_NUM}/${WORKSPACE}/ but I'm not sure I can rely on that.

Thanks

[lkysow]

Hi Cristian,
We could expose the models.ProjectCommandContext field RepoRelDir as an environment variable to custom steps. If you wanted to put up a PR for that you'd add it here: https://github.com/runatlantis/atlantis/blob/master/server/events/runtime/run_step_runner.go#L39

Otherwise, you can rely on the directory structure you've figured out. I can't see that changing in the future.

[crisp2u]

RepoRelDir is not helping me in this case, is the terraform project relative path inside repo not the clone dir. I'm new to Go but I'll keep digging.

[lkysow]

$DIR is the absolute directory to the project so you could use repoRelDir to figure out the repo root, e.g.

DIR=/home/atlantis/.atlantis/repos/${BASE_REPO_OWNER}/${BASE_REPO_NAME}/${PULL_NUM}/${WORKSPACE}/${PROJECT}
RepoRelDir=${PROJECT}

[awiddersheim]

@lkysow I needed something similar. If I am understanding your last comment correctly are you suggesting something like https://play.golang.org/p/hWTfXa8JIjt where we just remove ${RepoRelDir} from ${DIR}? This convo is quite old so perhaps things have changed on best way to approach this.

[lkysow]

Hi @awiddersheim the directory structure hasn't changed so that should work.

[llamahunter]

Is there a reason why the REPO_REL_DIR isn't exposed in the environment? It would be rather useful, rather than having to try to reconstruct it from the DIR.