1use crate::Oid;
 2use anyhow::{anyhow, Result};
 3use collections::HashMap;
 4use std::path::Path;
 5use std::process::Command;
 6
 7#[cfg(windows)]
 8use std::os::windows::process::CommandExt;
 9
10pub fn get_messages(working_directory: &Path, shas: &[Oid]) -> Result<HashMap<Oid, String>> {
11    const MARKER: &'static str = "<MARKER>";
12
13    let mut command = Command::new("git");
14
15    command
16        .current_dir(working_directory)
17        .arg("show")
18        .arg("-s")
19        .arg(format!("--format=%B{}", MARKER))
20        .args(shas.iter().map(ToString::to_string));
21
22    #[cfg(windows)]
23    command.creation_flags(windows::Win32::System::Threading::CREATE_NO_WINDOW.0);
24
25    let output = command
26        .output()
27        .map_err(|e| anyhow!("Failed to start git blame process: {}", e))?;
28
29    anyhow::ensure!(
30        output.status.success(),
31        "'git show' failed with error {:?}",
32        output.status
33    );
34
35    Ok(shas
36        .iter()
37        .cloned()
38        .zip(
39            String::from_utf8_lossy(&output.stdout)
40                .trim()
41                .split_terminator(MARKER)
42                .map(|str| String::from(str.trim())),
43        )
44        .collect::<HashMap<Oid, String>>())
45}