moghtech/komodo · error · anyhow::Error

Failed to get commit message |

Error message

Failed to get commit message | {}

What it means

After fetching the short hash, get_commit_hash_info runs `git log -1 --pretty=%B` to read the latest commit message; a non-zero exit converts the captured stderr into this error. It means git could not read the commit message, typically because the repository has no commits or is not a repository at all.

Solutions

1. Check the stderr after the '|' in the message for git's own diagnostic
2. Make at least one commit exists in the repository before querying the log
3. Run `git log -1 --pretty=%B` manually in the directory to reproduce
4. Re-clone or repair the repository if it is corrupt

fn has_log(dir: &Path) -> bool {
  std::process::Command::new("git").current_dir(dir)
    .args(["log", "-1"]).output()
    .map(|o| o.status.success()).unwrap_or(false)
}

match get_commit_hash_log(dir).await {
  Err(e) if e.to_string().starts_with("Failed to get commit message") => {
    log::warn!("no commit message available: {}", e); fallback_message()
  }
  Ok(c) => c,
  Err(e) => return Err(e),
}

When it happens

Trigger: Calling get_commit_hash_info (via get_commit_hash_log) in a repository with an unborn HEAD (no commits yet) or an invalid repo where `git log -1` fails; also on git subprocess errors or the 2s timeout being exceeded.

Common situations: Empty repos right after `git init`; shallow/detached states where git log fails; corrupt repositories; CI checkouts without history (shallow clones of depth issues).

Understand the failure class

Background: "git command failed": what it means when a tool shells out to git and git exits non-zero — this error's family across 21 libraries.

Related errors

• Failed to get short hash |
• Failed to get remote url | stdout
• Failed: 'git' is not installed or available on $PATH

AI-assisted analysis of moghtech/komodo@780ac68b99 (2026-09-08). Data as JSON: /api/errors/f2e355969bb1a7fe. Report an issue: GitHub.

Appendix: source

Thrown at lib/git/src/lib.rs:55

  let hash = if hash.status.success() {
    hash.stdout.trim().to_string()
  } else {
    return Err(anyhow!(
      "Failed to get short hash | {}",
      hash.stderr
    ));
  };
  let message = run_standard_command(
    "git log -1 --pretty=%B",
    CommandOptions::default()
      .path(repo_dir)
      .timeout(Duration::from_secs(2)),
  )
  .await;
  let message = if message.status.success() {
    message.stdout.trim().to_string()
  } else {
    return Err(anyhow!(
      "Failed to get commit message | {}",
      message.stderr
    ));
  };
  Ok(LatestCommit { hash, message })
}
/// returns (Log, commit hash, commit message)
pub async fn get_commit_hash_log(
  repo_dir: &Path,
) -> anyhow::Result<(Log, String, String)> {
  let start_ts = komodo_timestamp();
  let LatestCommit { hash, message } =
    get_commit_hash_info(repo_dir).await?;
  let log = Log {
    stage: "Latest Commit".into(),
    command: String::from(
      "git rev-parse --short HEAD && git log -1 --pretty=%B",
    ),

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