| hg-reviewers |
This will allow us to "reload" a revlog instance from a rewritten
index file, which will be used in a subsequent commit.
| Lint Skipped |
| Unit Tests Skipped |
| Path | Packages | |||
|---|---|---|---|---|
| M | mercurial/revlog.py (5 lines) |
| Commit | Parents | Author | Summary | Date |
|---|---|---|---|---|
| Gregory Szorc | Oct 2 2018, 8:28 PM |
| if self._chunkcachesize <= 0: | if self._chunkcachesize <= 0: | ||||
| raise error.RevlogError(_('revlog chunk cache size %r is not ' | raise error.RevlogError(_('revlog chunk cache size %r is not ' | ||||
| 'greater than 0') % self._chunkcachesize) | 'greater than 0') % self._chunkcachesize) | ||||
| elif self._chunkcachesize & (self._chunkcachesize - 1): | elif self._chunkcachesize & (self._chunkcachesize - 1): | ||||
| raise error.RevlogError(_('revlog chunk cache size %r is not a ' | raise error.RevlogError(_('revlog chunk cache size %r is not a ' | ||||
| 'power of 2') % self._chunkcachesize) | 'power of 2') % self._chunkcachesize) | ||||
| self._loadindex(v, mmapindexthreshold) | |||||
| def _loadindex(self, v, mmapindexthreshold): | |||||
| indexdata = '' | indexdata = '' | ||||
| self._initempty = True | self._initempty = True | ||||
| try: | try: | ||||
| with self._indexfp() as f: | with self._indexfp() as f: | ||||
| if (mmapindexthreshold is not None and | if (mmapindexthreshold is not None and | ||||
| self.opener.fstat(f).st_size >= mmapindexthreshold): | self.opener.fstat(f).st_size >= mmapindexthreshold): | ||||
| indexdata = util.buffer(util.mmapread(f)) | indexdata = util.buffer(util.mmapread(f)) | ||||
| else: | else: | ||||
| indexdata = f.read() | indexdata = f.read() | ||||
| if len(indexdata) > 0: | if len(indexdata) > 0: | ||||
| v = versionformat_unpack(indexdata[:4])[0] | v = versionformat_unpack(indexdata[:4])[0] | ||||
| self._initempty = False | self._initempty = False | ||||
| except IOError as inst: | except IOError as inst: | ||||
| if inst.errno != errno.ENOENT: | if inst.errno != errno.ENOENT: | ||||