Module gitignore 

Gitignore management for Ralph initialization.

Responsibilities:

• Ensure .ralph/workspaces/ is in .gitignore to prevent dirty repo issues.
• Ensure .ralph/logs/ is in .gitignore to prevent committing unredacted debug logs.
• Provide idempotent updates to .gitignore.

Not handled here:

• Reading or parsing existing .gitignore patterns (only simple line-based checks).
• Global gitignore configuration (only repo-local .gitignore).

Invariants/assumptions:

• Updates are additive only (never removes entries).
• Safe to run multiple times (idempotent).

Functions

ensure_ralph_gitignore_entries

Ensures Ralph-specific entries exist in .gitignore.

migrate_json_to_jsonc_gitignore

Migrate .json ignore patterns to .jsonc in .gitignore.