add "sync-labels" option to enable removing labels

closes actions#14
vintage-software · Apr 19, 2020 · bed0dae · bed0dae
1 parent 6de8091
commit bed0dae
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diff --git a/action.yml b/action.yml
@@ -7,6 +7,10 @@ inputs:
   configuration-path:
     description: 'The path for the label configurations'
     default: '.github/labeler.yml'
+  sync-labels:
+    description: 'Whether or not to remove labels when matching files are reverted'
+    default: false
+    required: false
 runs:
   using: 'node12'
   main: 'dist/index.js'
diff --git a/dist/index.js b/dist/index.js
@@ -3510,25 +3510,38 @@ function run() {
         try {
             const token = core.getInput("repo-token", { required: true });
             const configPath = core.getInput("configuration-path", { required: true });
+            const syncLabels = !!core.getInput("sync-labels", { required: false });
             const prNumber = getPrNumber();
             if (!prNumber) {
                 console.log("Could not get pull request number from context, exiting");
                 return;
             }
             const client = new github.GitHub(token);
+            const { data: pullRequest } = yield client.pulls.get({
+                owner: github.context.repo.owner,
+                repo: github.context.repo.repo,
+                pull_number: prNumber
+            });
             core.debug(`fetching changed files for pr #${prNumber}`);
             const changedFiles = yield getChangedFiles(client, prNumber);
             const labelGlobs = yield getLabelGlobs(client, configPath);
             const labels = [];
+            const labelsToRemove = [];
             for (const [label, globs] of labelGlobs.entries()) {
                 core.debug(`processing ${label}`);
                 if (checkGlobs(changedFiles, globs)) {
                     labels.push(label);
                 }
+                else if (pullRequest.labels.find(l => l.name === label)) {
+                    labelsToRemove.push(label);
+                }
             }
             if (labels.length > 0) {
                 yield addLabels(client, prNumber, labels);
             }
+            if (syncLabels && labelsToRemove.length) {
+                yield removeLabels(client, prNumber, labelsToRemove);
+            }
         }
         catch (error) {
             core.error(error);
@@ -3618,6 +3631,16 @@ function addLabels(client, prNumber, labels) {
         });
     });
 }
+function removeLabels(client, prNumber, labels) {
+    return __awaiter(this, void 0, void 0, function* () {
+        yield Promise.all(labels.map(label => client.issues.removeLabel({
+            owner: github.context.repo.owner,
+            repo: github.context.repo.repo,
+            issue_number: prNumber,
+            name: label
+        })));
+    });
+}
 run();
 
 

diff --git a/src/main.ts b/src/main.ts
@@ -7,6 +7,7 @@ async function run() {
   try {
     const token = core.getInput("repo-token", { required: true });
     const configPath = core.getInput("configuration-path", { required: true });
+    const syncLabels = !!core.getInput("sync-labels", { required: false });
 
     const prNumber = getPrNumber();
     if (!prNumber) {
@@ -16,6 +17,12 @@ async function run() {
 
     const client = new github.GitHub(token);
 
+    const { data: pullRequest } = await client.pulls.get({
+      owner: github.context.repo.owner,
+      repo: github.context.repo.repo,
+      pull_number: prNumber
+    });
+
     core.debug(`fetching changed files for pr #${prNumber}`);
     const changedFiles: string[] = await getChangedFiles(client, prNumber);
     const labelGlobs: Map<string, string[]> = await getLabelGlobs(
@@ -24,16 +31,23 @@ async function run() {
     );
 
     const labels: string[] = [];
+    const labelsToRemove: string[] = [];
     for (const [label, globs] of labelGlobs.entries()) {
       core.debug(`processing ${label}`);
       if (checkGlobs(changedFiles, globs)) {
         labels.push(label);
+      } else if (pullRequest.labels.find(l => l.name === label)) {
+        labelsToRemove.push(label);
       }
     }
 
     if (labels.length > 0) {
       await addLabels(client, prNumber, labels);
     }
+
+    if (syncLabels && labelsToRemove.length) {
+      await removeLabels(client, prNumber, labelsToRemove);
+    }
   } catch (error) {
     core.error(error);
     core.setFailed(error.message);
@@ -145,4 +159,21 @@ async function addLabels(
   });
 }
 
+async function removeLabels(
+  client: github.GitHub,
+  prNumber: number,
+  labels: string[]
+) {
+  await Promise.all(
+    labels.map(label =>
+      client.issues.removeLabel({
+        owner: github.context.repo.owner,
+        repo: github.context.repo.repo,
+        issue_number: prNumber,
+        name: label
+      })
+    )
+  );
+}
+
 run();