feat: Add empty as an output to indicate if the calculated plan has any changes or not (#47)

Author: nbali

README.md

@@ -114,3 +114,4 @@ summary.
 This action provides the following output:
 
 - `markdown`: The raw markdown output of the terraform plan
+- `empty`: Whether the terraform plan contains any change or not

action.yml

@@ -34,6 +34,8 @@ inputs:
 outputs:
   markdown:
     description: The raw markdown output of the terraform plan
+  empty:
+    description: Whether the terraform plan contains any change or not
 runs:
   using: node20
   main: dist/index.js

dist/index.js

@@ -29,6 +29,7 @@ async function run() {
   const planMarkdown = await core.group('Render plan diff markdown', async () => {
     const markdown = renderMarkdown({ plan, header: inputs.header })
     core.setOutput('markdown', markdown)
+    core.setOutput('empty', planIsEmpty(plan))
     return markdown
   })