use std::path::Path; use git_repository as git; use crate::index::{parse_file, Options}; pub fn entries(    index_path: impl AsRef<Path>,    mut out: impl std::io::Write,    Options { object_hash, format }: Options,) -> anyhow::Result<()> {    use crate::OutputFormat::*;    let file = parse_file(index_path, object_hash)?;     #[cfg(feature = "serde1")]    if let Json = format {        out.write_all(b"[\n")?;    }     let mut entries = file.entries().iter().peekable();    while let Some(entry) = entries.next() {        match format {            Human => to_human(&mut out, &file, entry)?,            #[cfg(feature = "serde1")]            Json => to_json(&mut out, &file, entry, entries.peek().is_none())?,        }    }     #[cfg(feature = "serde1")]    if let Json = format {        out.write_all(b"]\n")?;    }    Ok(())} #[cfg(feature = "serde1")]pub(crate) fn to_json(    mut out: &mut impl std::io::Write,    file: &git::index::File,    entry: &git::index::Entry,    is_last: bool,) -> anyhow::Result<()> {    use git_repository::bstr::ByteSlice;     #[cfg_attr(feature = "serde1", derive(serde::Serialize))]    struct Entry<'a> {        stat: &'a git::index::entry::Stat,        hex_id: String,        flags: u32,        mode: u32,        path: std::borrow::Cow<'a, str>,    }     serde_json::to_writer(        &mut out,        &Entry {            stat: &entry.stat,            hex_id: entry.id.to_hex().to_string(),            flags: entry.flags.bits(),            mode: entry.mode.bits(),            path: entry.path(&file.state).to_str_lossy(),        },    )?;     if is_last {        out.write_all(b"\n")?;    } else {        out.write_all(b",\n")?;    }    Ok(())} pub(crate) fn to_human(    out: &mut impl std::io::Write,    file: &git::index::File,    entry: &git::index::Entry,) -> std::io::Result<()> {    writeln!(        out,        "{} {}{:?} {} {}",        match entry.flags.stage() {            0 => "BASE   ",            1 => "OURS   ",            2 => "THEIRS ",            _ => "UNKNOWN",        },        if entry.flags.is_empty() {            "".to_string()        } else {            format!("{:?} ", entry.flags)        },        entry.mode,        entry.id,        entry.path(&file.state)    )}