Add option to disable commenting if no tests are detected

Fixes #1319

Add the ability to disable commenting if no tests are detected.

* **action.yml**
  - Add a new input `skip_comment_without_tests` to the inputs section.

* **src/main.ts**
  - Add a new constant `disableCommentIfNoTests` to read the input value.
  - Add a condition to check if tests are detected before calling `attachComment`.

* **README.md**
  - Update the documentation to include the new input option `skip_comment_without_tests`.

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/mikepenz/action-junit-report/issues/1319?shareId=XXXX-XXXX-XXXX-XXXX).

Author: mikepenz

README.md

@@ -113,6 +113,7 @@ jobs:
 | `skip_annotations`         | Optional. Setting this flag will result in no annotations being added to the run. Defaults to `false`.                                                                                              |
 | `truncate_stack_traces`    | Optional. Truncate stack traces from test output to 2 lines in annotations. Defaults to `true`.                                                                                                     |
 | `resolve_ignore_classname` | Optional. Force ignore test case classname from the xml report (This can help fix issues with some tools/languages). Defaults to `false`.                                                           |
+| `skip_comment_without_tests` | Optional. Disable commenting if no tests are detected. Defaults to `false`.                                                                                                                           |
 
 ### Common Configurations
 

action.yml

@@ -156,6 +156,10 @@ inputs:
     description: 'Force ignore test case classname from the xml report (This can help fix issues with some tools/languages)'
     required: false
     default: 'false'
+  skip_comment_without_tests:
+    description: 'Disable commenting if no tests are detected'
+    required: false
+    default: 'false'
 outputs:
   total:
     description: 'The total count of all checks'

src/main.ts

@@ -40,6 +40,7 @@ export async function run(): Promise<void> {
     const comment = core.getInput('comment') === 'true'
     const updateComment = core.getInput('updateComment') === 'true'
     const jobName = core.getInput('job_name')
+    const disableCommentIfNoTests = core.getInput('skip_comment_without_tests') === 'true'
 
     const reportPaths = core.getMultilineInput('report_paths')
     const summary = core.getMultilineInput('summary')
@@ -201,7 +202,7 @@ export async function run(): Promise<void> {
       core.info('⏩ Skipped creation of job summary')
     }
 
-    if (comment) {
+    if (comment && (!disableCommentIfNoTests || mergedResult.totalCount > 0)) {
       const octokit: InstanceType<typeof GitHub> = github.getOctokit(token)
       await attachComment(octokit, checkName, updateComment, table, detailTable, flakyTable)
     }