async function runLintDiff()

in eng/tools/lint-diff/src/lint-diff.ts [100:163]

• 53 lines of code
• 10 McCabe index (conditional complexity)

async function runLintDiff(
  beforePath: string,
  afterPath: string,
  changedFilesPath: string,
  outFile: string,
  baseBranch: string,
  compareSha: string,
) {
  const [beforeList, afterList, affectedSwaggers] = await getRunList(
    beforePath,
    afterPath,
    changedFilesPath,
  );

  if (beforeList.size === 0 && afterList.size === 0) {
    console.log("No changes found. Exiting.");
    return;
  }

  // It may be possible to run these in parallel as they're running against
  // different directories.
  const beforeChecks = await runChecks(beforePath, beforeList);
  const afterChecks = await runChecks(afterPath, afterList);

  // If afterChecks has AutoRest errors, fail the run.
  const autoRestErrors = afterChecks
    .map((result) => {
      return { result, errors: getAutorestErrors(result) };
    })
    .filter((result) => result.errors.length > 0);
  if (autoRestErrors.length > 0) {
    generateAutoRestErrorReport(autoRestErrors, outFile);
    console.log("AutoRest errors found. See workflow summary for details.");

    process.exitCode = 1;
    console.error(`AutoRest errors found. See workflow summary report in ${outFile} for details.`);
    return;
  }

  const runCorrelations = await correlateRuns(beforePath, beforeChecks, afterChecks);

  const pass = await generateLintDiffReport(
    runCorrelations,
    affectedSwaggers,
    outFile,
    baseBranch,
    compareSha,
  );

  if (!pass) {
    process.exitCode = 1;
    console.error(`Lint-diff failed. See workflow summary report in ${outFile} for details.`);
  }

  if (
    process.env.GITHUB_SERVER_URL &&
    process.env.GITHUB_REPOSITORY &&
    process.env.GITHUB_RUN_ID
  ) {
    console.log(
    `See workflow summary at: ${process.env.GITHUB_SERVER_URL}/${process.env.GITHUB_REPOSITORY}/actions/runs/${process.env.GITHUB_RUN_ID}`
    );
  }
}