rust/hg-core/src/repo.rs

46554:95d37db31479

use crate::config::{Config, ConfigError, ConfigParseError};
use crate::errors::{HgError, IoResultExt};
use crate::requirements;
use crate::utils::files::get_path_from_bytes;
use memmap::{Mmap, MmapOptions};
use std::collections::HashSet;
use std::path::{Path, PathBuf};

}

#[derive(Debug, derive_more::From)]
pub enum RepoError {
    NotFound {
        current_directory: PathBuf,
    },
    #[from]
    ConfigParseError(ConfigParseError),
    #[from]
    Other(HgError),

}

impl Repo {
    /// Search the current directory and its ancestores for a repository:
    /// a working directory that contains a `.hg` sub-directory.
    pub fn find(config: &Config) -> Result<Self, RepoError> {
        let current_directory = crate::utils::current_dir()?;
        // ancestors() is inclusive: it first yields `current_directory` as-is.
        for ancestor in current_directory.ancestors() {
            if ancestor.join(".hg").is_dir() {
                return Ok(Self::new_at_path(ancestor.to_owned(), config)?);
            }
        }
        Err(RepoError::NotFound { current_directory })
    }

    /// To be called after checking that `.hg` is a sub-directory
    fn new_at_path(
        working_directory: PathBuf,

46555:d8730ff51d5a

use crate::config::{Config, ConfigError, ConfigParseError};
use crate::errors::{HgError, IoResultExt};
use crate::requirements;
use crate::utils::current_dir;
use crate::utils::files::get_path_from_bytes;
use memmap::{Mmap, MmapOptions};
use std::collections::HashSet;
use std::path::{Path, PathBuf};

}

#[derive(Debug, derive_more::From)]
pub enum RepoError {
    NotFound {
        at: PathBuf,
    },
    #[from]
    ConfigParseError(ConfigParseError),
    #[from]
    Other(HgError),

}

impl Repo {
    /// Search the current directory and its ancestores for a repository:
    /// a working directory that contains a `.hg` sub-directory.
    ///
    /// `explicit_path` is for `--repository` command-line arguments.
    pub fn find(
        config: &Config,
        explicit_path: Option<&Path>,
    ) -> Result<Self, RepoError> {
        if let Some(root) = explicit_path {
            // Having an absolute path isn’t necessary here but can help code
            // elsewhere
            let root = current_dir()?.join(root);
            if root.join(".hg").is_dir() {
                Self::new_at_path(root, config)
            } else {
                Err(RepoError::NotFound {
                    at: root.to_owned(),
                })
            }
        } else {
            let current_directory = crate::utils::current_dir()?;
            // ancestors() is inclusive: it first yields `current_directory`
            // as-is.
            for ancestor in current_directory.ancestors() {
                if ancestor.join(".hg").is_dir() {
                    return Self::new_at_path(ancestor.to_owned(), config);
                }
            }
            Err(RepoError::NotFound {
                at: current_directory,
            })
        }
    }

    /// To be called after checking that `.hg` is a sub-directory
    fn new_at_path(
        working_directory: PathBuf,