Module add 

Logic for the timebomb plant subcommand.

This module implements the core logic for inserting a timebomb fuse into a source file at a specific line. It is intentionally defined with primitive parameters so that it compiles independently of any PlantArgs struct changes in cli.rs.

Functions

build_annotation

Build the full annotation string.

detect_comment_style

Return the comment prefix appropriate for the given file extension.

find_matching_lines

Scan a file line-by-line and return all (1-based line number, line content) pairs where the line contains pattern as a substring (case-sensitive).

insert_line

Insert new_line before the 1-based line_number in lines, returning the complete new file content as a String.

parse_target

Parse "path/to/file.rs:42" into (PathBuf, usize).

resolve_date

Resolve the expiry NaiveDate from the --date or --in-days arguments.

run_add

Core logic for timebomb plant.