Mercurial > hg
diff rust/rhg/src/main.rs @ 50886:12476986d89c
rhg: allow setting defaults.cmd to an empty string
This is used by at least one hg UI to prevent defaults from affecting
the command:
https://github.com/emacs-mirror/emacs/blob/b71beb7ae7c60a5c5af608420d28fdda5265a264/lisp/vc/vc-hg.el#L245
Let's let it work.
author | Spencer Baugh <sbaugh@janestreet.com> |
---|---|
date | Thu, 31 Aug 2023 19:47:33 -0400 |
parents | 53d77f96e049 |
children | 532e74ad3ff6 |
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--- a/rust/rhg/src/main.rs Sun Aug 20 17:19:33 2023 -0400 +++ b/rust/rhg/src/main.rs Thu Aug 31 19:47:33 2023 -0400 @@ -76,10 +76,15 @@ // Mercurial allows users to define "defaults" for commands, fallback // if a default is detected for the current command - let defaults = config.get_str(b"defaults", subcommand_name.as_bytes()); - if defaults?.is_some() { - let msg = "`defaults` config set"; - return Err(CommandError::unsupported(msg)); + let defaults = config.get_str(b"defaults", subcommand_name.as_bytes())?; + match defaults { + // Programmatic usage might set defaults to an empty string to unset + // it; allow that + None | Some("") => {} + Some(_) => { + let msg = "`defaults` config set"; + return Err(CommandError::unsupported(msg)); + } } for prefix in ["pre", "post", "fail"].iter() {