Method is_changed

src/black/cache.py:102–116

Check if source has changed compared to cached version.

(self, source: Path)

        return FileData(stat.st_mtime, stat.st_size, hash)

    def is_changed(self, source: Path) -> bool:
        class="st">""class="st">"Check if source has changed compared to cached version."class="st">""
        res_src = source.resolve()
        old = self.file_data.get(str(res_src))
        if old is None:
            return True

        st = res_src.stat()
        if st.st_size != old.st_size:
            return True
        if st.st_mtime != old.st_mtime:
            new_hash = Cache.hash_digest(res_src)
            if new_hash != old.hash:
                return True
        return False

    def filtered_cached(self, sources: Iterable[Path]) -> tuple[set[Path], set[Path]]:
        class="st">"""Split an iterable of paths in `sources` into two sets.