General refactoring

src/get-inputs/get-inputs.ts

@@ -0,0 +1,10 @@
+import * as core from '@actions/core';
+import {getPrNumbers} from './get-pr-numbers';
+
+export const getInputs = () => ({
+  token: core.getInput('repo-token'),
+  configPath: core.getInput('configuration-path', {required: true}),
+  syncLabels: !!core.getInput('sync-labels'),
+  dot: core.getBooleanInput('dot'),
+  prNumbers: getPrNumbers()
+});

src/get-inputs/get-pr-numbers.ts

@@ -0,0 +1,28 @@
+import * as core from '@actions/core';
+import * as github from '@actions/github';
+
+const getPrNumberFromContext = () =>
+  github.context.payload.pull_request?.number;
+
+export const getPrNumbers = (): number[] => {
+  const prInput = core.getMultilineInput('pr-number');
+
+  if (!prInput?.length) {
+    return [getPrNumberFromContext()].filter(Boolean) as number[];
+  }
+
+  const result: number[] = [];
+
+  for (const line of prInput) {
+    const prNumber = parseInt(line, 10);
+
+    if (isNaN(prNumber) && prNumber <= 0) {
+      core.warning(`'${prNumber}' is not a valid pull request number`);
+      continue;
+    }
+
+    result.push(prNumber);
+  }
+
+  return result;
+};

src/get-inputs/index.ts

@@ -0,0 +1 @@
+export * from './get-inputs';