refactor and add tests for retry options

src/retry-options.ts

@@ -0,0 +1,53 @@
+import * as core from '@actions/core'
+
+export type RetryOptions = {
+  doNotRetry?: number[]
+  enabled?: boolean
+}
+
+export type RequestOptions = {
+  retries?: number
+  retryAfter?: number
+}
+
+export function getRetryOptions(
+  retries: number,
+  retryAfter: number,
+  doNotRetry: number[]
+): [RetryOptions, RequestOptions] {
+  if (retries <= 0) {
+    return [{enabled: false}, {}]
+  }
+
+  const retryOptions: RetryOptions = {
+    enabled: true
+  }
+
+  if (doNotRetry.length > 0) {
+    retryOptions.doNotRetry = doNotRetry
+  }
+
+  const requestOptions: RequestOptions = {
+    retries,
+    retryAfter: retryAfter
+  }
+
+  core.info(
+    `GitHub client configured with: (retries: ${
+      requestOptions.retries
+    }, retryAfter: ${requestOptions.retryAfter}, doNotRetry: ${
+      retryOptions?.doNotRetry ?? 'octokit default: [400, 401, 403, 404, 422]'
+    })`
+  )
+
+  return [retryOptions, requestOptions]
+}
+
+export function parseNumberArray(listString: string): number[] {
+  if (!listString) {
+    return []
+  }
+
+  const split = listString.trim().split(',')
+  return split.map(x => parseInt(x))
+}