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// https://developer.github.com/actions/creating-github-actions/accessing-the-runtime-environment/#environment-variables
import type { DetectProvider } from "../types.ts";
function readJsonSync(path: string) {  const decoder = new TextDecoder("utf-8");  const content = decoder.decode(Deno.readFileSync(path));  return JSON.parse(content);}
function parseBranch(branch: string): string {  return (/refs\/heads\/(.*)/i.exec(branch) || [])[1];}
type PullRequest = {  base?: {    ref: string;  };  number: string;};
type GitHubEvent = {  pull_request: PullRequest;};
function getPrEvent(env: {  [index: string]: string;}): { branch?: string; pr?: string } {  try {    const event = env.GITHUB_EVENT_PATH      ? (readJsonSync(env.GITHUB_EVENT_PATH) as GitHubEvent)      : undefined;
    if (event && event.pull_request) {      return {        branch: event.pull_request.base          ? parseBranch(event.pull_request.base.ref)          : undefined,        pr: event.pull_request.number,      };    }  } catch {    return { pr: undefined, branch: undefined };  }
  return { pr: undefined, branch: undefined };}
const githubProvider: DetectProvider = {  detect(env) {    return Boolean(env.GITHUB_ACTION);  },
  // deno-lint-ignore require-await  async configuration(env) {    const isPr = env.GITHUB_EVENT_NAME === "pull_request";    const branch = parseBranch(env.GITHUB_REF);
    return {      name: "GitHub Actions",      service: "github",      commit: env.GITHUB_SHA,      isPr,      branch,      prBranch: isPr ? branch : undefined,      slug: env.GITHUB_REPOSITORY,      root: env.GITHUB_WORKSPACE,      ...(isPr ? getPrEvent(env) : undefined),    };  },};
export default githubProvider;