1use crate::Oid;
 2use anyhow::{anyhow, Result};
 3use collections::HashMap;
 4use std::path::Path;
 5
 6pub fn get_messages(working_directory: &Path, shas: &[Oid]) -> Result<HashMap<Oid, String>> {
 7    if shas.is_empty() {
 8        return Ok(HashMap::default());
 9    }
10
11    const MARKER: &str = "<MARKER>";
12
13    let output = util::command::new_std_command("git")
14        .current_dir(working_directory)
15        .arg("show")
16        .arg("-s")
17        .arg(format!("--format=%B{}", MARKER))
18        .args(shas.iter().map(ToString::to_string))
19        .output()
20        .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
21
22    anyhow::ensure!(
23        output.status.success(),
24        "'git show' failed with error {:?}",
25        output.status
26    );
27
28    Ok(shas
29        .iter()
30        .cloned()
31        .zip(
32            String::from_utf8_lossy(&output.stdout)
33                .trim()
34                .split_terminator(MARKER)
35                .map(|str| str.trim().replace("<", "&lt;").replace(">", "&gt;")),
36        )
37        .collect::<HashMap<Oid, String>>())
38}