comparison rust/hg-core/src/revlog/node.rs @ 46443:43d63979a75e

rust: use HgError in RevlogError and Vfs

Differential Revision: https://phab.mercurial-scm.org/D9897

46442:02d3bb972121

//! Definitions and utilities for Revision nodes
//!
//! In Mercurial code base, it is customary to call "a node" the binary SHA
//! of a revision.

use bytes_cast::BytesCast;
use std::convert::{TryFrom, TryInto};
use std::fmt;

/// The length in bytes of a `Node`

        if prefix.nybbles_len() == NODE_NYBBLES_LENGTH {
            Ok(Self { data: prefix.data })
        } else {
            Err(FromHexError)
        }
    }

    /// Provide access to binary data
    ///
    /// This is needed by FFI layers, for instance to return expected

46443:43d63979a75e

//! Definitions and utilities for Revision nodes
//!
//! In Mercurial code base, it is customary to call "a node" the binary SHA
//! of a revision.

use crate::errors::HgError;
use bytes_cast::BytesCast;
use std::convert::{TryFrom, TryInto};
use std::fmt;

/// The length in bytes of a `Node`

        if prefix.nybbles_len() == NODE_NYBBLES_LENGTH {
            Ok(Self { data: prefix.data })
        } else {
            Err(FromHexError)
        }
    }

    /// `from_hex`, but for input from an internal file of the repository such
    /// as a changelog or manifest entry.
    ///
    /// An error is treated as repository corruption.
    pub fn from_hex_for_repo(hex: impl AsRef<[u8]>) -> Result<Node, HgError> {
        Self::from_hex(hex.as_ref()).map_err(|FromHexError| {
            HgError::CorruptedRepository(format!(
                "Expected a full hexadecimal node ID, found {}",
                String::from_utf8_lossy(hex.as_ref())
            ))
        })
    }

    /// Provide access to binary data
    ///
    /// This is needed by FFI layers, for instance to return expected