comparison mercurial/store.py @ 17604:bf9894889d82

store: optimize fncache._load a bit by dirdecoding the contents in one go

For a netbeans clone on Windows 7 x64:

  Before:
    $ hg perffncacheload
    ! wall 0.124000 comb 0.124801 user 0.124801 sys 0.000000 (best of 76)

  After:
    $ hg perffncacheload
    ! wall 0.096000 comb 0.093601 user 0.078001 sys 0.015600 (best of 97)

17603:a7fa5bd1c914

            fp = self.opener('fncache', mode='rb')
        except IOError:
            # skip nonexistent file
            self.entries = set()
            return
        self.entries = set(map(decodedir, fp.read().splitlines()))
        if '' in self.entries:
            fp.seek(0)
            for n, line in enumerate(fp):
                if not line.rstrip('\n'):
                    t = _('invalid entry in fncache, line %s') % (n + 1)

17604:bf9894889d82

            fp = self.opener('fncache', mode='rb')
        except IOError:
            # skip nonexistent file
            self.entries = set()
            return
        self.entries = set(decodedir(fp.read()).splitlines())
        if '' in self.entries:
            fp.seek(0)
            for n, line in enumerate(fp):
                if not line.rstrip('\n'):
                    t = _('invalid entry in fncache, line %s') % (n + 1)