upstream/mercurial-mirror Files · rust/rhg/src/commands/debugrequirements.rs

rust-index: using the `hg::index::Index` in ancestors iterator and lazy set...

rust-index: using the `hg::index::Index` in ancestors iterator and lazy set Since there is no Rust implementation for REVLOGV2/CHANGELOGv2, we declare them to be incompatible with Rust, hence indexes in these formats will use the implementations from Python `mercurial.ancestor`. If this is an unacceptable performance hit for current users of these formats, we can later on add Rust implementations based on the C index for them or implement these formats for the Rust indexes. Among the challenges that we had to meet, we wanted to avoid taking the GIL each time the inner (vcsgraph) iterator has to call the parents function. This would probably still be acceptable in terms of performance with `AncestorsIterator`, but not with `LazyAncestors` nor for the upcoming change in `MissingAncestors`. Hence we enclose the reference to the index in a `PySharedRef`, leading to more rigourous checking of mutations, which does pass now that there no logically immutable methods of `hg::index::Index` that take a mutable reference as input.

Raphaël Gomès - - Load All Authors

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             debugrequirements.rs
        
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             | 598 B
            
                | application/rls-services+xml
            
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             / rust / rhg / src / commands / debugrequirements.rs
          
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        Simon Sapin
    
requirements: move loading to hg-core and add parsing...

              r46536
            
      use crate::error::CommandError;

        Simon Sapin
    
rhg: add a `debugrequirements` subcommand...

              r46535
            
      pub const HELP_TEXT: &str = "

      Print the current repo requirements.

      ";

        Raphaël Gomès
    
rhg: upgrade `clap` dependency...

              r50534
            
      pub fn args() -> clap::Command {

          clap::command!("debugrequirements").about(HELP_TEXT)

        Simon Sapin
    
rhg: Move subcommand CLI arguments definitions to respective modules...

              r47251
            
      }

        Simon Sapin
    
rhg: Group values passed to every sub-command into a struct...

              r47334
            
      pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {

        Simon Sapin
    
rhg: Move `Repo` object creation into `main()`...

              r47335
            
          let repo = invocation.repo?;

        Simon Sapin
    
rhg: replace command structs with functions...

              r47250
            
          let mut output = String::new();

          let mut requirements: Vec<_> = repo.requirements().iter().collect();

          requirements.sort();

          for req in requirements {

              output.push_str(req);

              output.push('\n');

        Simon Sapin
    
rhg: add a `debugrequirements` subcommand...

              r46535
            
          }

        Simon Sapin
    
rhg: Group values passed to every sub-command into a struct...

              r47334
            
          invocation.ui.write_stdout(output.as_bytes())?;

        Simon Sapin
    
rhg: replace command structs with functions...

              r47250
            
          Ok(())

        Simon Sapin
    
rhg: add a `debugrequirements` subcommand...

              r46535
            
      }

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Simon Sapin requirements: move loading to hg-core and add parsing...	r46536	use crate::error::CommandError;
Simon Sapin rhg: add a `debugrequirements` subcommand...	r46535
		pub const HELP_TEXT: &str = "
		Print the current repo requirements.
		";

Raphaël Gomès rhg: upgrade `clap` dependency...	r50534	pub fn args() -> clap::Command {
		clap::command!("debugrequirements").about(HELP_TEXT)
Simon Sapin rhg: Move subcommand CLI arguments definitions to respective modules...	r47251	}

Simon Sapin rhg: Group values passed to every sub-command into a struct...	r47334	pub fn run(invocation: &crate::CliInvocation) -> Result<(), CommandError> {
Simon Sapin rhg: Move `Repo` object creation into `main()`...	r47335	let repo = invocation.repo?;
Simon Sapin rhg: replace command structs with functions...	r47250	let mut output = String::new();
		let mut requirements: Vec<_> = repo.requirements().iter().collect();
		requirements.sort();
		for req in requirements {
		output.push_str(req);
		output.push('\n');
Simon Sapin rhg: add a `debugrequirements` subcommand...	r46535	}
Simon Sapin rhg: Group values passed to every sub-command into a struct...	r47334	invocation.ui.write_stdout(output.as_bytes())?;
Simon Sapin rhg: replace command structs with functions...	r47250	Ok(())
Simon Sapin rhg: add a `debugrequirements` subcommand...	r46535	}