提交补丁审核遇凭证错误，求助git cl upload -s故障排查

Let’s walk through resolving this credential issue step by step, tailored to your workflow with the Dart SDK contribution tools:

• First, audit your existing credential files
  Fire up your terminal and check what’s stored in your credential files:

  • For .gitcookies: Run cat ~/.gitcookies and look for entries for github-review.com and github.com. Missing or outdated entries here are the most likely culprit.
  • For the older .netrc: Run cat ~/.netrc and verify there are valid machine, login, and password lines for both hosts.

• Regenerate and update your credentials
  Access the github-review.com password reset page to generate a fresh credential token. Once you have it:

  • If using .gitcookies: Replace the existing github-review.com entry with the new token (the standard format looks like github-review.com FALSE / TRUE <expiry-timestamp> oauth2 <your-new-token>). Append the entry if it’s missing entirely.
  • If using .netrc: Add or update the sections for both hosts like this:

    machine github-review.com
    login oauth2
    password <your-new-github-review-token>
    machine github.com
    login <your-github-username>
    password <your-github-personal-access-token>
    

  Critical note: Lock down permissions for these files to keep your credentials secure. Run chmod 600 ~/.netrc and chmod 600 ~/.gitcookies to restrict access to only your user account.

• Test the fix
  First, verify the credentials work with a simple fetch: git fetch https://github-review.com/dart-lang/sdk.git. If that completes without errors, re-run your original command: git cl upload -s.

• Bonus troubleshooting steps

  • Ensure your git cl tool is up to date: Run git cl update to grab the latest version—older builds might have bugs in credential handling.
  • Check for conflicting credential helpers: Run git config --global credential.helper. If a helper like osxkeychain is listed, it might be overriding your .gitcookies/.netrc settings. Temporarily unset it with git config --global --unset credential.helper and try again.

内容的提问来源于stack exchange，提问作者Fallenreaper