mod_cache.py 文件源码

def update(self):
        """Removes unused old versions of mods from the cache folder."""
        all_mods = set([(m.name, m.required_version) for mp in self.mod_manager.modpacks for m in mp.contents])

        mods = {}
        for cmod in self.mods:
            if not cmod.name in mods:
                mods[cmod.name] = []
            # keep the version list sorted
            bisect.insort(mods[cmod.name], parse_version(cmod.version))

        for name, versions in mods.items():
            newest = "{}.{}.{}".format(*versions[0])
            all_versions = {"{}.{}.{}".format(*v) for v in versions}

            candidates = {v for n, v in all_mods if n == name and v}

            # preserve all mods that are a part of avalable modpack
            preserve = {v for v in all_versions if v in candidates}

            # preserve newest version of each mod
            preserve.add(newest)

            for version in (all_versions - preserve):
                # NOTE: Far too lazy to figure out what the actual issue is, so I'll assume the CachedMod constructor wants a filename
                # cmod = CachedMod(name, version)
                cmod = CachedMod(name + "_" + version + ".zip")
                assert os.path.exists(cmod.path)
                os.remove(cmod.path)