git-index 0.4.1

A work-in-progress crate of the gitoxide project dedicated implementing the git index file
Documentation 
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use crate::{write, File, Version};
use git_features::hash;

impl File {
    /// Write the index to `out` with `options`, to be readable by [`File::at()`], returning the version that was actually written
    /// to retain all information of this index.
    pub fn write_to(&self, mut out: impl std::io::Write, options: write::Options) -> std::io::Result<Version> {
        let mut hasher = hash::Write::new(&mut out, options.hash_kind);
        let version = self.state.write_to(&mut hasher, options)?;

        let hash = hasher.hash.digest();
        out.write_all(&hash)?;
        Ok(version)
    }
}