rhg: upgrade `clap` dependency
This one is the worst one to upgrade since v2 -> v4 broke a ton of API,
which thankfully seems saner now.
Contrary to what was done in the `hg-core/src/examples/nodemap` rewrite,
we're not switching from the "builder" pattern to the "derive" pattern,
since that would imply a much larger diff. It can be done incrementally.
use crate::error::CommandError;
use format_bytes::format_bytes;
use hg::errors::{IoErrorContext, IoResultExt};
use hg::utils::files::get_bytes_from_path;
pub const HELP_TEXT: &str = "
Print the root directory of the current repository.
Returns 0 on success.
";
pub fn args() -> clap::Command {
clap::command!("root").about(HELP_TEXT)
}
pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
let repo = invocation.repo?;
let working_directory = repo.working_directory_path();
let working_directory = std::fs::canonicalize(working_directory)
.with_context(|| {
IoErrorContext::CanonicalizingPath(working_directory.to_owned())
})?;
let bytes = get_bytes_from_path(&working_directory);
invocation
.ui
.write_stdout(&format_bytes!(b"{}\n", bytes.as_slice()))?;
Ok(())
}