Function compare_content

atomic-core/src/record/workflow/compare.rs:337–360

Compare two content blobs and produce a diff. This is the main entry point for content comparison. It handles: - Encoding detection for both contents - Binary file detection (skips diffing) - Diff generation for text files # Arguments `old_content` - Content from pristine (empty for new files) `new_content` - Content from working copy `algorithm` - Diff algorithm to use # Returns A `CompareRe

(
    old_content: &[u8],
    new_content: &[u8],
    algorithm: Algorithm,
)

/// assert!(!result.is_binary);
/// ```
pub fn compare_content(
    old_content: &[u8],
    new_content: &[u8],
    algorithm: Algorithm,
) -> CompareResult {
    // Detect encodings
    let old_encoding = detect_encoding(old_content);
    let new_encoding = detect_encoding(new_content);

    // Quick check: if bytes are identical, no changes
    if old_content == new_content {
        return CompareResult::identical(old_encoding);
    }

    // Check if either is binary
    if is_binary(old_content) || is_binary(new_content) {
        return CompareResult::binary(old_encoding, new_encoding);
    }

    // Generate diff for text content
    let diff_ops = generate_diff(old_content, new_content, algorithm);

    CompareResult::with_diff(old_encoding, new_encoding, diff_ops)
}

/// Compare content with size limit check.
///