Support custom Pull Request number

README.md

@@ -18,6 +18,7 @@ For more information on these inputs, see the [Workflow syntax for GitHub Action
 - `github-token`: Set the `${{ secrets.GITHUB_TOKEN }}` token to have the action comment the coverage summary in the pull request. This token is provided by Actions, you do not need to create your own token. Optional. Default: ``
 - `working-directory`: The working directory containing the source files referenced in the LCOV files. Optional. Default: `./`
 - `title`: A prefix before the title "LCOV of commit..." Optional. Default: ``
+- `pr-number`: The number of the pull request you want to process. Required when the event is not `pull_request` or `pull_request_target`
 
 ### Outputs
 None.
@@ -50,11 +51,11 @@ jobs:
         github-token: ${{ secrets.GITHUB_TOKEN }}
         working-directory: apps/my-first-app
 ```
-*Note:* Only the `pull_request` and `pull_request_target` events are supported. This action does nothing when triggered by other event types.
+*Tip:* This should primarily be used with `pull_request` and `pull_request_target` events.
 
 ### Flutter Workflows
 
 This is used in my opinionated [GitHub Actions: Flutter Workflows](https://github.com/zgosalvez/github-actions-flutter-workflows) repository along with other actions for a complete end-to-end DevOps experience.
 
 ## License
-The scripts and documentation in this project are released under the [MIT License](LICENSE)
+The scripts and documentation in this project are released under the [MIT License](LICENSE)

action.yml

@@ -19,6 +19,9 @@ inputs:
   title-prefix:
     description: 'A prefix before the title "LCOV of commit..." Optional. Default: ``'
     required: false
+  pr-number:
+    descirption: 'The number of the pull request you want to process. Required when the event is not `pull_request` or `pull_request_target`'
+    required: false
 runs:
   using: 'node12'
   main: 'dist/main/index.js'

src/main.js

@@ -27,14 +27,27 @@ async function run() {
     const gitHubToken = core.getInput('github-token').trim();
     const errorMessage = `The code coverage is too low: ${totalCoverage}. Expected at least ${minimumCoverage}.`;
     const isFailure = totalCoverage < minimumCoverage;
+    let sha;
+    let prNumber;
+
+    if (gitHubToken !== '') {
+      if (events.includes(github.context.eventName)) {
+        sha = github.context.payload.pull_request.head.sha;
+        prNumber = github.context.payload.pull_request.number;
+      } else {
+        sha = github.context.payload.after || github.context.sha;
+        prNumber = core.getInput('pr-number');
+
+        if (!prNumber) {
+          throw Error('The `pr-number` input is required when the event is not a `pull_request` or `pull_request_target`.');
+        }
+      }
 
-    if (gitHubToken !== '' && events.includes(github.context.eventName)) {
       const octokit = await github.getOctokit(gitHubToken);
       const summary = await summarize(coverageFile);
-      const details = await detail(coverageFile, octokit);
-      const sha = github.context.payload.pull_request.head.sha;
+      const details = await detail(coverageFile, octokit, prNumber);
       const shaShort = sha.substr(0, 7);
-      let body = `### ${title ? `${title} ` : ''}[LCOV](https://github.com/marketplace/actions/report-lcov) of commit [<code>${shaShort}</code>](${github.context.payload.pull_request.number}/commits/${sha}) during [${github.context.workflow} #${github.context.runNumber}](../actions/runs/${github.context.runId})\n<pre>${summary}\n\nFiles changed coverage rate:${details}</pre>`;
+      let body = `### ${title ? `${title} ` : ''}[LCOV](https://github.com/marketplace/actions/report-lcov) of commit [<code>${shaShort}</code>](${prNumber}/commits/${sha}) during [${github.context.workflow} #${github.context.runNumber}](../actions/runs/${github.context.runId})\n<pre>${summary}\n\nFiles changed coverage rate:${details}</pre>`;
 
       if (isFailure) {
         body += `\n:no_entry: ${errorMessage}`;
@@ -44,7 +57,7 @@ async function run() {
       await octokit.issues.createComment({
         owner: github.context.repo.owner,
         repo: github.context.repo.repo,
-        issue_number: github.context.payload.pull_request.number,
+        issue_number: prNumber,
         body: body,
       });
     } else {
@@ -138,7 +151,7 @@ async function summarize(coverageFile) {
   return lines.join('\n');
 }
 
-async function detail(coverageFile, octokit) {
+async function detail(coverageFile, octokit, prNumber) {
   let output = '';
 
   const options = {};
@@ -171,7 +184,7 @@ async function detail(coverageFile, octokit) {
     .pulls.listFiles.endpoint.merge({
       owner: github.context.repo.owner,
       repo: github.context.repo.repo,
-      pull_number: github.context.payload.pull_request.number,
+      pull_number: prNumber,
     });
   const listFilesResponse = await octokit.paginate(listFilesOptions);
   const changedFiles = listFilesResponse.map(file => file.filename);