Allow specifying colors

action.yml

@@ -16,6 +16,9 @@ inputs:
   number:
     description: The number of the issue or pull request.
     required: false
+  colors:
+    description: The labels' color to be set. Separate multiple colors with line breaks, each color will be assigned to the label at the matching index.
+    required: false
 runs:
   using: node12
   main: dist/index.js

dist/index.js

@@ -53,12 +53,40 @@ function run() {
                 return;
             }
             const octokit = github.getOctokit(githubToken);
-            yield octokit.rest.issues.addLabels({
+            const { data: githubLabels } = yield octokit.rest.issues.addLabels({
                 labels,
                 owner,
                 repo,
                 issue_number: number
             });
+            const githubLabelsByName = githubLabels
+                .reduce((acc, label) => (Object.assign(Object.assign({}, acc), { [label.name]: label })), {});
+            const colors = core
+                .getInput('colors')
+                .split('\n')
+                .filter(c => c !== '')
+                .slice(0, labels.length);
+            for (const [i, color] of colors.entries()) {
+                const name = labels[i];
+                const githubLabel = githubLabelsByName[name];
+                if (!githubLabel || githubLabel.color == color) {
+                    continue;
+                }
+                try {
+                    yield octokit.rest.issues.updateLabel({
+                        owner,
+                        repo,
+                        name,
+                        color
+                    });
+                    core.info(`Updated color for label "${githubLabel.name}" from #${githubLabel.color} to #${color}`);
+                }
+                catch (e) {
+                    if (e instanceof Error) {
+                        core.error(e);
+                    }
+                }
+            }
         }
         catch (e) {
             if (e instanceof Error) {
@@ -3760,7 +3788,7 @@ function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'defau
 
 var endpoint = __nccwpck_require__(9440);
 var universalUserAgent = __nccwpck_require__(5030);
-var isPlainObject = __nccwpck_require__(9062);
+var isPlainObject = __nccwpck_require__(3287);
 var nodeFetch = _interopDefault(__nccwpck_require__(467));
 var requestError = __nccwpck_require__(537);
 
@@ -3931,52 +3959,6 @@ exports.request = request;
 //# sourceMappingURL=index.js.map
 
 
-/***/ }),
-
-/***/ 9062:
-/***/ ((__unused_webpack_module, exports) => {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", ({ value: true }));
-
-/*!
- * is-plain-object <https://github.com/jonschlinkert/is-plain-object>
- *
- * Copyright (c) 2014-2017, Jon Schlinkert.
- * Released under the MIT License.
- */
-
-function isObject(o) {
-  return Object.prototype.toString.call(o) === '[object Object]';
-}
-
-function isPlainObject(o) {
-  var ctor,prot;
-
-  if (isObject(o) === false) return false;
-
-  // If has modified constructor
-  ctor = o.constructor;
-  if (ctor === undefined) return true;
-
-  // If has modified prototype
-  prot = ctor.prototype;
-  if (isObject(prot) === false) return false;
-
-  // If constructor does not have an Object-specific method
-  if (prot.hasOwnProperty('isPrototypeOf') === false) {
-    return false;
-  }
-
-  // Most likely a plain Object
-  return true;
-}
-
-exports.isPlainObject = isPlainObject;
-
-
 /***/ }),
 
 /***/ 3682:
@@ -6750,6 +6732,52 @@ module.exports.array = (stream, options) => getStream(stream, Object.assign({},
 module.exports.MaxBufferError = MaxBufferError;
 
 
+/***/ }),
+
+/***/ 3287:
+/***/ ((__unused_webpack_module, exports) => {
+
+"use strict";
+
+
+Object.defineProperty(exports, "__esModule", ({ value: true }));
+
+/*!
+ * is-plain-object <https://github.com/jonschlinkert/is-plain-object>
+ *
+ * Copyright (c) 2014-2017, Jon Schlinkert.
+ * Released under the MIT License.
+ */
+
+function isObject(o) {
+  return Object.prototype.toString.call(o) === '[object Object]';
+}
+
+function isPlainObject(o) {
+  var ctor,prot;
+
+  if (isObject(o) === false) return false;
+
+  // If has modified constructor
+  ctor = o.constructor;
+  if (ctor === undefined) return true;
+
+  // If has modified prototype
+  prot = ctor.prototype;
+  if (isObject(prot) === false) return false;
+
+  // If constructor does not have an Object-specific method
+  if (prot.hasOwnProperty('isPrototypeOf') === false) {
+    return false;
+  }
+
+  // Most likely a plain Object
+  return true;
+}
+
+exports.isPlainObject = isPlainObject;
+
+
 /***/ }),
 
 /***/ 1554:

src/main.ts

@@ -20,12 +20,41 @@ async function run(): Promise<void> {
     }
 
     const octokit = github.getOctokit(githubToken);
-    await octokit.rest.issues.addLabels({
+    const { data: githubLabels } = await octokit.rest.issues.addLabels({
       labels,
       owner,
       repo,
       issue_number: number
     });
+    const githubLabelsByName: { [label: string]: (typeof githubLabels)[0] } = githubLabels
+      .reduce((acc, label) => ({ ...acc, [label.name]: label }), {});
+
+    const colors = core
+      .getInput('colors')
+      .split('\n')
+      .filter(c => c !== '')
+      .slice(0, labels.length);
+
+    for (const [i, color] of colors.entries()) {
+      const name = labels[i];
+      const githubLabel = githubLabelsByName[name];
+      if (!githubLabel || githubLabel.color == color) {
+        continue;
+      }
+      try {
+        await octokit.rest.issues.updateLabel({
+          owner,
+          repo,
+          name,
+          color
+        });
+        core.info(`Updated color for label "${githubLabel.name}" from #${githubLabel.color} to #${color}`);
+      } catch (e) {
+        if (e instanceof Error) {
+          core.error(e);
+        }
+      }
+    }
   } catch (e) {
     if (e instanceof Error) {
       core.error(e);