Mercurial > public > mercurial-scm > hg-stable
diff mercurial/dirstate.py @ 47674:ff97e793ed36
dirstate-v2: Introduce a docket file
.hg/dirstate now only contains some metadata to point to a separate data file
named .hg/dirstate.{}.d with a random hexadecimal identifier. For now every
update creates a new data file and removes the old one, but later we?ll
(usually) append to an existing file.
Separating into two files allows doing the "write to a temporary file then
atomically rename into destination" dance with only a small docket file,
without always rewriting a lot of data.
Differential Revision: https://phab.mercurial-scm.org/D11088
| author | Simon Sapin <simon.sapin@octobus.net> |
|---|---|
| date | Thu, 08 Jul 2021 12:18:21 +0200 |
| parents | 37825a85d3b0 |
| children | a685c29ebf54 |
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--- a/mercurial/dirstate.py Thu Jul 15 17:24:09 2021 +0200 +++ b/mercurial/dirstate.py Thu Jul 08 12:18:21 2021 +0200 @@ -906,13 +906,13 @@ tr.addfilegenerator( b'dirstate', (self._filename,), - self._writedirstate, + lambda f: self._writedirstate(tr, f), location=b'plain', ) return st = self._opener(filename, b"w", atomictemp=True, checkambig=True) - self._writedirstate(st) + self._writedirstate(tr, st) def addparentchangecallback(self, category, callback): """add a callback to be called when the wd parents are changed @@ -925,7 +925,7 @@ """ self._plchangecallbacks[category] = callback - def _writedirstate(self, st): + def _writedirstate(self, tr, st): # notify callbacks about parents change if self._origpl is not None and self._origpl != self._pl: for c, callback in sorted( @@ -955,7 +955,7 @@ now = end # trust our estimate that the end is near now break - self._map.write(st, now) + self._map.write(tr, st, now) self._lastnormaltime = 0 self._dirty = False @@ -1580,7 +1580,8 @@ # output file will be used to create backup of dirstate at this point. if self._dirty or not self._opener.exists(filename): self._writedirstate( - self._opener(filename, b"w", atomictemp=True, checkambig=True) + tr, + self._opener(filename, b"w", atomictemp=True, checkambig=True), ) if tr: @@ -1590,7 +1591,7 @@ tr.addfilegenerator( b'dirstate', (self._filename,), - self._writedirstate, + lambda f: self._writedirstate(tr, f), location=b'plain', )