Mercurial > hg-stable
changeset 47408:f7f082bc0e7c
revlog: allow to pass an existing docket to `_loadindex()`
This will be when switching undelying files, for examples during censors and strip operation with rvlog-v2.
Differential Revision: https://phab.mercurial-scm.org/D10800
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Sun, 30 May 2021 18:09:29 +0200 |
| parents | 1efe3cdef53a |
| children | 8a6e6b62b9a3 |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 44 insertions(+), 38 deletions(-) [+] |
line wrap: on
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--- a/mercurial/revlog.py Sun May 30 18:10:15 2021 +0200 +++ b/mercurial/revlog.py Sun May 30 18:09:29 2021 +0200 @@ -487,7 +487,7 @@ raise return b'' - def _loadindex(self): + def _loadindex(self, docket=None): new_header, mmapindexthreshold, force_nodemap = self._init_opts() @@ -498,45 +498,51 @@ else: entry_point = b'%s.i' % self.radix - entry_data = b'' - self._initempty = True - entry_data = self._get_data(entry_point, mmapindexthreshold) - if len(entry_data) > 0: - header = INDEX_HEADER.unpack(entry_data[:4])[0] - self._initempty = False + if docket is not None: + self._docket = docket + self._docket_file = entry_point else: - header = new_header - - self._format_flags = header & ~0xFFFF - self._format_version = header & 0xFFFF - - supported_flags = SUPPORTED_FLAGS.get(self._format_version) - if supported_flags is None: - msg = _(b'unknown version (%d) in revlog %s') - msg %= (self._format_version, self.display_id) - raise error.RevlogError(msg) - elif self._format_flags & ~supported_flags: - msg = _(b'unknown flags (%#04x) in version %d revlog %s') - display_flag = self._format_flags >> 16 - msg %= (display_flag, self._format_version, self.display_id) - raise error.RevlogError(msg) - - features = FEATURES_BY_VERSION[self._format_version] - self._inline = features[b'inline'](self._format_flags) - self._generaldelta = features[b'generaldelta'](self._format_flags) - self.hassidedata = features[b'sidedata'] - - if not features[b'docket']: - self._indexfile = entry_point - index_data = entry_data - else: - self._docket_file = entry_point - if self._initempty: - self._docket = docketutil.default_docket(self, header) + entry_data = b'' + self._initempty = True + entry_data = self._get_data(entry_point, mmapindexthreshold) + if len(entry_data) > 0: + header = INDEX_HEADER.unpack(entry_data[:4])[0] + self._initempty = False else: - self._docket = docketutil.parse_docket( - self, entry_data, use_pending=self._trypending - ) + header = new_header + + self._format_flags = header & ~0xFFFF + self._format_version = header & 0xFFFF + + supported_flags = SUPPORTED_FLAGS.get(self._format_version) + if supported_flags is None: + msg = _(b'unknown version (%d) in revlog %s') + msg %= (self._format_version, self.display_id) + raise error.RevlogError(msg) + elif self._format_flags & ~supported_flags: + msg = _(b'unknown flags (%#04x) in version %d revlog %s') + display_flag = self._format_flags >> 16 + msg %= (display_flag, self._format_version, self.display_id) + raise error.RevlogError(msg) + + features = FEATURES_BY_VERSION[self._format_version] + self._inline = features[b'inline'](self._format_flags) + self._generaldelta = features[b'generaldelta'](self._format_flags) + self.hassidedata = features[b'sidedata'] + + if not features[b'docket']: + self._indexfile = entry_point + index_data = entry_data + else: + self._docket_file = entry_point + if self._initempty: + self._docket = docketutil.default_docket(self, header) + else: + self._docket = docketutil.parse_docket( + self, entry_data, use_pending=self._trypending + ) + + if self._docket is not None: self._indexfile = self._docket.index_filepath() index_data = b'' index_size = self._docket.index_end