tweak: add compared and has-changed outputs

.github/workflows/test.yml

@@ -43,7 +43,7 @@ jobs:
           comment-author: 'github-actions[bot]'
       - name: Create or Update Comment
         uses: peter-evans/[email protected]
-        if: github.event_name == 'pull_request'
+        if: github.event_name == 'pull_request' && steps.coverage.outputs.compared == 'true' && steps.coverage.outputs.has-changed == 'true'
         with:
           issue-number: ${{ github.event.number }}
           body-path: ${{ steps.coverage.outputs.comment-file }}

README.md

@@ -56,7 +56,9 @@ Example: adding a comment to the PR with the summary
         id: coverage
         with:
           token: ${{ secrets.GITHUB_TOKEN }}
-      - name: Find Comment
+      - name: Write comment
+        # Do it only if there were changes in coverage
+        if: (steps.coverage.outputs.compared == 'true') && (steps.coverage.outputs.has-changed == 'true')
         uses: peter-evans/[email protected]
         if: github.event_name == 'pull_request'
         with:

action.yml

@@ -17,6 +17,10 @@ outputs:
     description: 'Coverage summary'
   comment-file:
     description: 'Path to markdown file with the coverage summary'
+  compared:
+    description: 'Returns true if the action was able to compare coverage with the base branch'
+  has-changed:
+    description: 'Returns true if a comparison with base branch was performed and there are changes in coverage'
 runs:
   using: 'node16'
   main: 'dist/index.js'

lib/compare-coverage.js

@@ -107,6 +107,8 @@ function getCoverageComment({ commitId, currentCoverageFile, previousCommitId, p
                 `| Lines | ? | ${currentCov.Lines}% | ? |\n`
             ])
     ].join('\n');
+    core.setOutput('compared', trends !== null);
+    core.setOutput('has-changed', (trends === null || trends === void 0 ? void 0 : trends.Branches) || (trends === null || trends === void 0 ? void 0 : trends.Functions) || (trends === null || trends === void 0 ? void 0 : trends.Lines) || (trends === null || trends === void 0 ? void 0 : trends.Statements));
     core.debug(message);
     return message;
 }

src/compare-coverage.ts

@@ -128,6 +128,12 @@ export function getCoverageComment({
         ])
   ].join('\n')
 
+  core.setOutput('compared', trends !== null)
+  core.setOutput(
+    'has-changed',
+    trends?.Branches || trends?.Functions || trends?.Lines || trends?.Statements
+  )
+
   core.debug(message)
   return message
 }