Piotrkala/sc 55961/do not generate atlantis yaml if no paths

[kalapiotr]

Pull Request

Description

Currently if no paths match glob passed in --filter atlantis.yaml is still generated and then atlantis plan is executed for all paths. We want to exit early and do NOT generate atlantis.yaml file if no paths match filter to avoid executing atlantis plan for all files

version 1.16.1

I did not want to produce 1.16.2 version since we would have to produce an entire new docker image that points to that version. I think this is still in development/experimental phase and staying with 1.16.1 is good enough for now

Tests

Tested locally:

➜  terragrunt-atlantis-config git:(piotrkala/sc-55961/do-not-generate-atlantis-yaml-if-no-paths) ~/terragrunt-atlantis-config_1.16.2_linux_amd64/terragrunt-atlantis-config_1.16.2_linux_amd64 generate --output atlantis.yaml --autoplan --filter 'src/**/dev/**' --parallel=false
INFO[0000] Could not find an old config file. Starting from scratch 
INFO[0000] No paths found for glob patter: src/**/dev/** 

NO atlantis.yaml file was generated!