Module run_tests 

pre-push-run-tests-js — run each touched JS package’s gate before pushing.

git feeds pre-push one line per ref on stdin. That list is parsed ONCE by the dispatcher (see pushrefs) and lent here, because stdin can only be consumed once and more than one check needs it: An all-zero local oid is a deletion; an all-zero remote oid means the branch is new, so everything it carries is in range.

Constants

JS_EXTS

The extensions this check treats as “JS worth testing”. Exported so registry.rs declares the scope from the same constant — see lint_json_yaml::EXTS for the drift this prevents.

Functions

defines_script

Does package.json define script under “scripts”?

gate_for

The GATE, minus what a pre-commit declaration already covers.

package_dirs

Tracked package.json paths, as directories relative to the repo root.

packages_to_test

Packages that actually contain one of the changed files.

run