Module files 

Filesystem + JSON helpers shared by the collectors.

Functions

dir_basename

Last path component of a working directory (/a/b/app → app), or None.

env_path

A non-empty environment variable as a path.

modified_since

false only when the file’s mtime is known and older than start — cheap pre-filter so untouched history is never parsed.

num

A JSON number as u64: accepts integers and floats, clamps negatives to 0.

num_any

First of keys present in obj as a number (aliases across versions).

num_f

An optional JSON number (already deserialised as f64) as u64: clamps negatives and NaN to 0. Used by the typed per-line parsers.

project_from_dirname

-Users-me-Projects-app- → Users-me-Projects-app.

read_lines

Stream the lines of a (possibly huge) file; invalid UTF-8 lines are skipped.

split_paths

Split a path-list environment value (: / ; / , separated).

walk_ext

Recursively collect files below root whose extension is one of exts (case-sensitive, without the dot). Unreadable directories are skipped.