Mercurial > hg-stable
changeset 1529:a208e86bbc34
add dirstate.lazyread, write atomically the dirstate
- add a dirstate.lazyread function that read only if it wasn't read before and
update all callers
- use the atomic keyword from util.opener to atomically write the dirstate
mercurial/dirstate.py
| author | Benoit Boissinot <benoit.boissinot@ens-lyon.org> |
|---|---|
| date | Fri, 11 Nov 2005 15:34:06 -0800 |
| parents | c9f33196805b |
| children | abfab59fce79 |
| files | mercurial/dirstate.py |
| diffstat | 1 files changed, 13 insertions(+), 13 deletions(-) [+] |
line wrap: on
line diff
--- a/mercurial/dirstate.py Fri Nov 11 15:33:59 2005 -0800 +++ b/mercurial/dirstate.py Fri Nov 11 15:34:06 2005 -0800 @@ -101,16 +101,15 @@ try: return self.map[key] except TypeError: - self.read() + self.lazyread() return self[key] def __contains__(self, key): - if not self.map: self.read() + self.lazyread() return key in self.map def parents(self): - if not self.pl: - self.read() + self.lazyread() return self.pl def markdirty(self): @@ -118,8 +117,7 @@ self.dirty = 1 def setparents(self, p1, p2=nullid): - if not self.pl: - self.read() + self.lazyread() self.markdirty() self.pl = p1, p2 @@ -129,9 +127,11 @@ except KeyError: return "?" + def lazyread(self): + if self.map is None: + self.read() + def read(self): - if self.map is not None: return self.map - self.map = {} self.pl = [nullid, nullid] try: @@ -154,7 +154,7 @@ pos += l def copy(self, source, dest): - self.read() + self.lazyread() self.markdirty() self.copies[dest] = source @@ -169,7 +169,7 @@ a marked for addition''' if not files: return - self.read() + self.lazyread() self.markdirty() for f in files: if state == "r": @@ -184,7 +184,7 @@ def forget(self, files): if not files: return - self.read() + self.lazyread() self.markdirty() for f in files: try: @@ -198,7 +198,7 @@ self.markdirty() def write(self): - st = self.opener("dirstate", "w") + st = self.opener("dirstate", "w", atomic=True) st.write("".join(self.pl)) for f, e in self.map.items(): c = self.copied(f) @@ -258,7 +258,7 @@ return False def statwalk(self, files=None, match=util.always, dc=None): - self.read() + self.lazyread() # walk all files by default if not files: