IGNORE_PER_FILE: true MODULES: lib1, lib2, main STEP 0: libs: lib1, lib2, main dirty js modules: lib1, lib2, main STEP 1..2: libs: lib1, lib2, main dirty js modules: lib1 STEP 3..5: libs: lib1, lib2, main dirty js modules: lib1, lib2 STEP 6: libs: lib1, lib2, main dirty js modules: lib2