comparison mercurial/subrepo.py @ 23367:115af8de76a4

subrepo: add "_cachestorehashvfs" to handle cache store hash files via vfs

This "vfs" object will be used by subsequent patches to handle cache
store hash files without direct file APIs.

This patch decorates "_cachestorehashvfs" with "@propertycache" to
delay vfs creation, because it is used only for cooperation with other
repositories.

In this patch, "/" is used as the path separator, even though
"self._repo.join" uses platform specific path separator (e.g. "\\" on
Windows). But it is reasonable enough, because "store" and other
management file handling already include such implementation, and they
work well.

23366:568ae89797c6

    def _getstorehashcachepath(self, remotepath):
        '''get a unique path for the store hash cache'''
        return self._repo.join(os.path.join(
            'cache', 'storehash', _getstorehashcachename(remotepath)))

    def _readstorehashcache(self, remotepath):
        '''read the store hash cache for a given remote repository'''
        cachefile = self._getstorehashcachepath(remotepath)
        if not os.path.exists(cachefile):
            return ''

23367:115af8de76a4

    def _getstorehashcachepath(self, remotepath):
        '''get a unique path for the store hash cache'''
        return self._repo.join(os.path.join(
            'cache', 'storehash', _getstorehashcachename(remotepath)))

    @propertycache
    def _cachestorehashvfs(self):
        return scmutil.vfs(self._repo.join('cache/storehash'))

    def _readstorehashcache(self, remotepath):
        '''read the store hash cache for a given remote repository'''
        cachefile = self._getstorehashcachepath(remotepath)
        if not os.path.exists(cachefile):
            return ''