Add skip-labeled-prs option

This option skips labeling pull requests which already have labels
present.

action.yml

@@ -10,6 +10,9 @@ inputs:
   configuration-path:
     description: 'The path for the label configurations'
     default: '.github/labeler.yml'
+  skip-labeled-prs:
+    description: 'Determines whether the action should skip labelling pull requests which have labels already present'
+    default: true
   operations-per-run:
     description: 'The maximum number of operations per run, used to control rate limiting'
     default: 30

dist/index.js

@@ -6261,6 +6261,10 @@ function processPrs(client, labelGlobs, args, operationsLeft, page = 1) {
         }
         for (const pr of prs.data.values()) {
             console.log(`found pr #${pr.number}: ${pr.title}`);
+            if (args.skipLabeledPrs && pr.labels.length > 0) {
+                console.log(`skipping pr #${pr.number} since it has labels already`);
+                continue;
+            }
             console.log(`fetching changed files for pr #${pr.number}`);
             const listFilesResponse = yield client.pulls.listFiles({
                 owner: github.context.repo.owner,
@@ -6320,6 +6324,7 @@ function getAndValidateArgs() {
     const args = {
         repoToken: core.getInput("repo-token", { required: true }),
         configurationPath: core.getInput("configuration-path"),
+        skipLabeledPrs: core.getInput("skip-labeled-prs", { required: true }) === 'true',
         operationsPerRun: parseInt(core.getInput("operations-per-run", { required: true }))
     };
     for (const numberInput of ["operations-per-run"]) {

src/index.ts

@@ -10,6 +10,7 @@ type PullLabel = Octokit.PullsListResponseItemLabelsItem;
 interface Args {
   repoToken: string;
   configurationPath: string;
+  skipLabeledPrs: boolean;
   operationsPerRun: number;
 }
 
@@ -84,6 +85,12 @@ async function processPrs(
 
   for (const pr of prs.data.values()) {
     console.log(`found pr #${pr.number}: ${pr.title}`);
+
+    if (args.skipLabeledPrs && pr.labels.length > 0) {
+      console.log(`skipping pr #${pr.number} since it has labels already`);
+      continue;
+    }
+
     console.log(`fetching changed files for pr #${pr.number}`);
 
     const listFilesResponse = await client.pulls.listFiles({
@@ -159,6 +166,7 @@ function getAndValidateArgs(): Args {
   const args = {
     repoToken: core.getInput("repo-token", { required: true }),
     configurationPath: core.getInput("configuration-path"),
+    skipLabeledPrs: core.getInput("skip-labeled-prs", { required: true }) === 'true',
     operationsPerRun: parseInt(
       core.getInput("operations-per-run", { required: true })
     )