tyt-preferences 0.1.6

Preference loading from .tytconfig files for tyt sub-crates.
Documentation 
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use std::{
    io::Result as IOResult,
    path::{Path, PathBuf},
};

/// Dependency injection for preference I/O operations.
pub trait Dependencies {
    /// Returns the user home directory, or `None` if it cannot be determined.
    fn user_home_dir(&self) -> IOResult<Option<PathBuf>>;

    /// Returns the root directory of the current git repository, or `None` if not in a repository.
    fn git_root_dir(&self) -> IOResult<Option<PathBuf>>;

    /// Reads the contents of a file, or returns `None` if the file does not exist.
    fn read_file(&self, path: &Path) -> IOResult<Option<Vec<u8>>>;
}