comparison rust/hg-core/src/revlog/changelog.rs @ 48198:61ce70fd420e

rhg: handle null changelog and manifest revisions

Differential Revision: https://phab.mercurial-scm.org/D11650

48197:63e86fc9bfec

use crate::errors::HgError;
use crate::repo::Repo;
use crate::revlog::revlog::{Revlog, RevlogError};
use crate::revlog::Revision;
use crate::revlog::{Node, NodePrefix};

/// A specialized `Revlog` to work with `changelog` data format.

    }

    /// Return the node id of the `manifest` referenced by this `changelog`
    /// entry.
    pub fn manifest_node(&self) -> Result<Node, HgError> {
        Node::from_hex_for_repo(
            self.lines()
                .next()
                .ok_or_else(|| HgError::corrupted("empty changelog entry"))?,
        )
    }
}

48198:61ce70fd420e

use crate::errors::HgError;
use crate::repo::Repo;
use crate::revlog::node::NULL_NODE;
use crate::revlog::revlog::{Revlog, RevlogError};
use crate::revlog::Revision;
use crate::revlog::{Node, NodePrefix};

/// A specialized `Revlog` to work with `changelog` data format.

    }

    /// Return the node id of the `manifest` referenced by this `changelog`
    /// entry.
    pub fn manifest_node(&self) -> Result<Node, HgError> {
        match self.lines().next() {
            None => Ok(NULL_NODE),
            Some(x) => Node::from_hex_for_repo(x),
        }
    }
}