Enhance Committer to navigate to repo root, improving usability

src/committer.rs

@@ -2,6 +2,7 @@ use crate::comment_generator::CommentGenerator;
 use crate::confirmor::Confirmor;
 
 use std::io::Read;
+use std::path::Path;
 use std::{fmt::Write, io::BufRead};
 
 use git2::{DiffFormat, DiffOptions, Repository};
@@ -14,6 +15,13 @@ pub struct Committer {
 
 impl Committer {
  pub fn new(confirmor: Confirmor, comment_generator: CommentGenerator) -> anyhow::Result<Self> {
+ while let Err(err) = Repository::open(".") {
+ if let Some(parent) = Path::new("..").canonicalize().ok() {
+ std::env::set_current_dir(parent)?;
+ } else {
+ return Err(err.into());
+ }
+ }
  let repository = Repository::open(".")?;
 
  Ok(Committer {