comparison rust/hg-core/src/repo.rs @ 47988:cfb6e6699b25

rust: Add Repo::manifest(revision)

This deduplicates some common code.

Differential Revision: https://phab.mercurial-scm.org/D11407

47987:21d25e9ee58e

use crate::dirstate::DirstateParents;
use crate::dirstate_tree::dirstate_map::DirstateMap;
use crate::dirstate_tree::owning::OwningDirstateMap;
use crate::errors::HgError;
use crate::errors::HgResultExt;
use crate::exit_codes;
use crate::manifest::Manifestlog;
use crate::requirements;
use crate::revlog::revlog::RevlogError;
use crate::utils::files::get_path_from_bytes;
use crate::utils::SliceExt;
use crate::vfs::{is_dir, is_file, Vfs};
use crate::DirstateError;
use std::cell::{Cell, Ref, RefCell, RefMut};
use std::collections::HashSet;
use std::path::{Path, PathBuf};

/// A repository on disk

    }

    pub fn manifestlog_mut(&self) -> Result<RefMut<Manifestlog>, RevlogError> {
        self.manifestlog.get_mut_or_init(self)
    }
}

/// Lazily-initialized component of `Repo` with interior mutability
///
/// This differs from `OnceCell` in that the value can still be "deinitialized"

47988:cfb6e6699b25

use crate::dirstate::DirstateParents;
use crate::dirstate_tree::dirstate_map::DirstateMap;
use crate::dirstate_tree::owning::OwningDirstateMap;
use crate::errors::HgError;
use crate::errors::HgResultExt;
use crate::manifest::{Manifest, Manifestlog};
use crate::requirements;
use crate::revlog::revlog::RevlogError;
use crate::utils::files::get_path_from_bytes;
use crate::utils::SliceExt;
use crate::vfs::{is_dir, is_file, Vfs};
use crate::{exit_codes, Node};
use crate::{DirstateError, Revision};
use std::cell::{Cell, Ref, RefCell, RefMut};
use std::collections::HashSet;
use std::path::{Path, PathBuf};

/// A repository on disk

    }

    pub fn manifestlog_mut(&self) -> Result<RefMut<Manifestlog>, RevlogError> {
        self.manifestlog.get_mut_or_init(self)
    }

    /// Returns the manifest of the given revision
    pub fn manifest(
        &self,
        revision: Revision,
    ) -> Result<Manifest, RevlogError> {
        let changelog = self.changelog()?;
        let manifest = self.manifestlog()?;
        let changelog_entry = changelog.get_rev(revision)?;
        let manifest_node =
            Node::from_hex_for_repo(&changelog_entry.manifest_node()?)?;
        manifest.get_node(manifest_node.into())
    }
}

/// Lazily-initialized component of `Repo` with interior mutability
///
/// This differs from `OnceCell` in that the value can still be "deinitialized"