comparison rust/hg-core/src/dirstate/status.rs @ 47335:ed1583a845d2

dirstate-v2: Make more APIs fallible, returning Result

When parsing becomes lazy, parse error will potentially happen in more places.
This propagates such errors to callers.

Differential Revision: https://phab.mercurial-scm.org/D10749

47334:18b3060fe598

//! Rust implementation of dirstate.status (dirstate.py).
//! It is currently missing a lot of functionality compared to the Python one
//! and will only be triggered in narrow cases.

use crate::utils::path_auditor::PathAuditor;
use crate::{
    dirstate::SIZE_FROM_OTHER_PARENT,
    filepatterns::PatternFileWarning,
    matchers::{get_ignore_function, Matcher, VisitChildrenSet},

    IO(std::io::Error),
    /// An invalid path that cannot be represented in Mercurial was found
    Path(HgPathError),
    /// An invalid "ignore" pattern was found
    Pattern(PatternError),
}

pub type StatusResult<T> = Result<T, StatusError>;

impl fmt::Display for StatusError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            StatusError::IO(error) => error.fmt(f),
            StatusError::Path(error) => error.fmt(f),
            StatusError::Pattern(error) => error.fmt(f),
        }
    }
}

/// Gives information about which files are changed in the working directory

47335:ed1583a845d2

//! Rust implementation of dirstate.status (dirstate.py).
//! It is currently missing a lot of functionality compared to the Python one
//! and will only be triggered in narrow cases.

use crate::dirstate_tree::on_disk::DirstateV2ParseError;
use crate::utils::path_auditor::PathAuditor;
use crate::{
    dirstate::SIZE_FROM_OTHER_PARENT,
    filepatterns::PatternFileWarning,
    matchers::{get_ignore_function, Matcher, VisitChildrenSet},

    IO(std::io::Error),
    /// An invalid path that cannot be represented in Mercurial was found
    Path(HgPathError),
    /// An invalid "ignore" pattern was found
    Pattern(PatternError),
    /// Corrupted dirstate
    DirstateV2ParseError(DirstateV2ParseError),
}

pub type StatusResult<T> = Result<T, StatusError>;

impl fmt::Display for StatusError {
    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
        match self {
            StatusError::IO(error) => error.fmt(f),
            StatusError::Path(error) => error.fmt(f),
            StatusError::Pattern(error) => error.fmt(f),
            StatusError::DirstateV2ParseError(_) => {
                f.write_str("dirstate-v2 parse error")
            }
        }
    }
}

/// Gives information about which files are changed in the working directory