Detector::Rust::Cli
Detects Rust command-line applications: crates depending on a CLI library
(clap, structopt, argh, bpaf, pico-args, getopts) or source that derives a
parser / uses std::env::args(). Gates the Rust CLI analyzer. Bare
std::env::var(...) (config reads, common in web crates) does not qualify.
Constants
Single-pass alternation over CLI_CRATES — the previous per-crate interpolated literal recompiled (and rescanned) once per crate for every Cargo.toml.
Single-pass union of the standalone source markers (the clap-builder
check below stays separate: it is gated on includes?("clap")). The
previous chain scanned the whole file up to 5 times on non-CLI Rust
sources — the common case.
Class methods
The tech name without needing an instance, so the registry can be read off the classes themselves rather than from a parallel list.
Instance methods
Cheap filename-only filter the detector pass uses to skip
detect on files the detector cannot possibly match. The
default true preserves prior behavior (every detector runs on
every file). Override with the same predicate the body of
detect starts with — e.g., filename.ends_with?(".py") for a
Python framework detector — so the detector loop avoids the
detect dispatch on files outside the detector's language.
On large codebases (saleor's 4255 .py files) this lifts ~100
virtual detect calls per file out of the hot loop because
most detectors' inner first-line is exactly this kind of cheap
filename check.