Method diff

crates/opencode-session/src/snapshot.rs:76–127

(directory: &Path, from_hash: &str)

    }

    pub fn diff(directory: &Path, from_hash: &str) -> Result<Vec<super::FileDiff>> {
        let git_dir = ensure_snapshot_repo(directory)?;
        git_add_all(directory, &git_dir)?;
        let output = git_output(
            directory,
            &git_dir,
            &[
                "-c",
                "core.autocrlf=false",
                "-c",
                "core.quotepath=false",
                "diff",
                "--no-ext-diff",
                "--numstat",
                from_hash,
                "--",
                ".",
            ],
        );

        let mut diffs = Vec::new();

        if let Ok(output) = output {
            for line in String::from_utf8_lossy(&output.stdout).lines() {
                if line.is_empty() {
                    continue;
                }
                let parts: Vec<&str> = line.split('\t').collect();
                if parts.len() >= 3 {
                    let is_binary = parts[0] == "-" && parts[1] == "-";
                    let additions = if is_binary {
                        0
                    } else {
                        parts[0].parse::<u64>().unwrap_or(0)
                    };
                    let deletions = if is_binary {
                        0
                    } else {
                        parts[1].parse::<u64>().unwrap_or(0)
                    };
                    let path = parts[2].to_string();
                    diffs.push(super::FileDiff {
                        path,
                        additions,
                        deletions,
                    });
                }
            }
        }

        Ok(diffs)
    }

    /// Compute diff between two git refs (matching TS `Snapshot.diffFull`).
    ///