Function replace_all_in_file

pub fn replace_all_in_file(
    file_path: &Path,
    search: &SearchType,
    replace: &str,
) -> Result<bool>

Performs search and replace operations in a file

This function implements a hybrid approach to file replacements:

1. For files under the MAX_FILE_SIZE threshold, it attempts an in-memory replacement
2. If the file is large or in-memory replacement fails, it falls back to line-by-line chunked replacement

This approach optimizes for performance while maintaining reasonable memory usage limits.

Arguments

• file_path - Path to the file to process
• search - The search pattern (fixed string, regex, or advanced regex)
• replace - The replacement string

Returns

• Ok(true) if replacements were made in the file
• Ok(false) if no replacements were made (no matches found)
• Err if any errors occurred during the operation