如何确认是否具备远程仓库推送权限？Mercurial场景下无需执行hg push的验证方法

Hey there, let's break down your two questions about Mercurial push permissions and config validation clearly:

There are a few reliable ways to check this:

• Use a dry-run push (the safest direct check): Run hg push --dry-run against the remote repo. This simulates the entire push process—including permission checks, comparing local and remote changesets—but won't actually push any code. If you have valid permissions, you'll either see "No changes found" (if you're up to date) or a list of changes that would be pushed. If you don't have permission, you'll get an explicit error like abort: permission denied or abort: authorization failed.
• Test basic remote connectivity:
  • For SSH-based repos: Run ssh <your-remote-repo-url> (e.g., ssh user@hg-server.com/path/to/repo). If you can connect without authentication errors and get a Mercurial-specific greeting, your SSH keys/user setup is correct.
  • For HTTP/HTTPS repos: Run hg identify <remote-repo-url>. If this returns the remote repo's latest changeset ID, you have read access; combined with valid auth config, this suggests your push setup is likely correct (though dry-run is still the definitive check).
• Double-check local config: Verify your local .hg/hgrc (per-repo) or ~/.hgrc (user-wide) files have the correct remote path under the [paths] section, and any required authentication details (like username/password or SSH key paths) are properly set.

Absolutely—you can validate your setup without triggering an actual push. Here's how:

• Stick with hg push --dry-run: Even though it uses the push command, it doesn't modify the remote repo at all. It's specifically designed to test exactly what you need: permission checks, config validity, and change sync status. This is the most reliable method for your use case.
• Validate your hgrc configs:
  • Check the [paths] section to ensure the remote URL matches what the server expects. For example:

    [paths]
    default = ssh://john@hg.example.com/project/repo
    

  • For authenticated HTTP/HTTPS repos, confirm the [auth] section has the right credentials (or uses a keyring for security):

    [auth]
    hg-example.prefix = https://hg.example.com/project/repo
    hg-example.username = john_doe
    hg-example.password = secure-passphrase  # Or use `hg keyring` to avoid plaintext
    

• Test SSH connection separately: If your repo uses SSH, run ssh -T <remote-user>@<remote-host> (e.g., ssh -T john@hg.example.com). A successful connection will often return a message like Welcome to Mercurial on hg.example.com!, confirming your SSH setup is working and the server recognizes your user.
• Check remote repo ACLs (if you have access): If you're using a managed Mercurial server (like in an enterprise), log into the server's admin interface and verify your user account is listed in the repo's push-permitted users or groups. This is a more direct check if you have admin access.

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