Method print_unified

atomic-cli/src/commands/diff/format.rs:11–364

Print the diff in unified format.

(
        &self,
        file_diffs: &[FileDiff],
        config: &DiffOutputConfig,
    )

impl Diff {
    /// Print the diff in unified format.
    pub(super) fn print_unified(
        &self,
        file_diffs: &[FileDiff],
        config: &DiffOutputConfig,
    ) -> CliResult<()> {
        for file_diff in file_diffs {
            // Print file header
            let old_path = if config.show_path_prefix {
                format!("a/{}", file_diff.old_path)
            } else {
                file_diff.old_path.clone()
            };
            let new_path = if config.show_path_prefix {
                format!("b/{}", file_diff.new_path)
            } else {
                file_diff.new_path.clone()
            };

            // Format line stats (e.g., "+2 -1") with colors
            let line_stats = if file_diff.stats.insertions > 0 || file_diff.stats.deletions > 0 {
                let ins = if file_diff.stats.insertions > 0 {
                    format!("+{}", file_diff.stats.insertions)
                } else {
                    String::new()
                };
                let del = if file_diff.stats.deletions > 0 {
                    format!("-{}", file_diff.stats.deletions)
                } else {
                    String::new()
                };
                (ins, del)
            } else {
                (String::new(), String::new())
            };

            if config.color {
                // Build colored line stats
                let colored_stats = if !line_stats.0.is_empty() || !line_stats.1.is_empty() {
                    let ins_colored = if !line_stats.0.is_empty() {
                        added(&line_stats.0).to_string()
                    } else {
                        String::new()
                    };
                    let del_colored = if !line_stats.1.is_empty() {
                        deleted(&line_stats.1).to_string()
                    } else {
                        String::new()
                    };
                    if !ins_colored.is_empty() && !del_colored.is_empty() {
                        format!(" ({} {})", ins_colored, del_colored)
                    } else if !ins_colored.is_empty() {
                        format!(" ({})", ins_colored)
                    } else {
                        format!(" ({})", del_colored)
                    }
                } else {
                    String::new()
                };