Let plan action output the plan-output (hashicorp#119)

* Ouput the plan output for subsequent actions

* Follow Github's recommendation for mulit-line string output

Co-Authored-By: Matthew Sanabria <[email protected]>

Co-authored-by: Matthew Sanabria <[email protected]>

Author: jvassbo

README.md

@@ -82,6 +82,7 @@ Outputs are used to pass information to subsequent GitHub Actions steps.
 
 * `tf_actions_output` - The Terraform outputs in JSON format.
 * `tf_actions_plan_has_changes` - Whether or not the Terraform plan contained changes.
+* `tf_actions_plan_output` - The Terraform plan output.
 
 ## Secrets
 

action.yml

@@ -27,6 +27,8 @@ outputs:
     description: 'The Terraform outputs in JSON format.'
   tf_actions_plan_has_changes:
     description: 'Whether or not the Terraform plan contained changes.'
+  tf_actions_plan_output:
+    description: 'The Terraform plan output.'
 runs:
   using: 'docker'
   image: './Dockerfile'

src/terraform_plan.sh

@@ -63,5 +63,12 @@ ${planOutput}
   fi
 
   echo ::set-output name=tf_actions_plan_has_changes::${planHasChanges}
+
+  # https://github.community/t5/GitHub-Actions/set-output-Truncates-Multiline-Strings/m-p/38372/highlight/true#M3322
+  planOutput="${planOutput//'%'/'%25'}"
+  planOutput="${planOutput//$'\n'/'%0A'}"
+  planOutput="${planOutput//$'\r'/'%0D'}"
+
+  echo "::set-output name=tf_actions_plan_output::${planOutput}"
   exit ${planExitCode}
 }