Mercurial > public > mercurial-scm > hg-stable
comparison mercurial/revlog.py @ 47159:c6b8d5d91e73
revlog: deal with special "postfix" explicitely
revlog usually use a straight forward '.i' and '.d' naming except for two cases
"in-transaction" changelog, and censoring. Our goal is to let the revlog code
deal with the internal of the file naming itself. To do so, we need to start
dealing with these postfix explicitly.
Differential Revision: https://phab.mercurial-scm.org/D10571
| author | Pierre-Yves David <pierre-yves.david@octobus.net> |
|---|---|
| date | Mon, 03 May 2021 12:21:46 +0200 |
| parents | b6e1fe7ac24b |
| children | a07d5cb03a85 |
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| 47158:b6e1fe7ac24b | 47159:c6b8d5d91e73 |
|---|---|
| 287 | 287 |
| 288 def __init__( | 288 def __init__( |
| 289 self, | 289 self, |
| 290 opener, | 290 opener, |
| 291 target, | 291 target, |
| 292 postfix=None, | |
| 292 indexfile=None, | 293 indexfile=None, |
| 293 datafile=None, | 294 datafile=None, |
| 294 checkambig=False, | 295 checkambig=False, |
| 295 mmaplargeindex=False, | 296 mmaplargeindex=False, |
| 296 censorable=False, | 297 censorable=False, |
| 310 analysis. Note: that this must be reliably be set by normal code, but | 311 analysis. Note: that this must be reliably be set by normal code, but |
| 311 that test, debug, or performance measurement code might not set this to | 312 that test, debug, or performance measurement code might not set this to |
| 312 accurate value. | 313 accurate value. |
| 313 """ | 314 """ |
| 314 self.upperboundcomp = upperboundcomp | 315 self.upperboundcomp = upperboundcomp |
| 316 if not indexfile.endswith(b'.i'): | |
| 317 raise error.ProgrammingError( | |
| 318 b"revlog's indexfile should end with `.i`" | |
| 319 ) | |
| 320 if datafile is None: | |
| 321 datafile = indexfile[:-2] + b".d" | |
| 322 if postfix is not None: | |
| 323 datafile = b'%s.%s' % (datafile, postfix) | |
| 324 if postfix is not None: | |
| 325 indexfile = b'%s.%s' % (indexfile, postfix) | |
| 315 self.indexfile = indexfile | 326 self.indexfile = indexfile |
| 316 self.datafile = datafile or (indexfile[:-2] + b".d") | 327 self.datafile = datafile |
| 317 self.nodemap_file = None | 328 self.nodemap_file = None |
| 329 self.postfix = postfix | |
| 318 if persistentnodemap: | 330 if persistentnodemap: |
| 319 self.nodemap_file = nodemaputil.get_nodemap_file( | 331 self.nodemap_file = nodemaputil.get_nodemap_file( |
| 320 opener, self.indexfile | 332 opener, self.indexfile |
| 321 ) | 333 ) |
| 322 | 334 |
| 2879 ) | 2891 ) |
| 2880 | 2892 |
| 2881 # Rewriting the revlog in place is hard. Our strategy for censoring is | 2893 # Rewriting the revlog in place is hard. Our strategy for censoring is |
| 2882 # to create a new revlog, copy all revisions to it, then replace the | 2894 # to create a new revlog, copy all revisions to it, then replace the |
| 2883 # revlogs on transaction close. | 2895 # revlogs on transaction close. |
| 2884 | 2896 # |
| 2885 newindexfile = self.indexfile + b'.tmpcensored' | |
| 2886 newdatafile = self.datafile + b'.tmpcensored' | |
| 2887 | |
| 2888 # This is a bit dangerous. We could easily have a mismatch of state. | 2897 # This is a bit dangerous. We could easily have a mismatch of state. |
| 2889 newrl = revlog( | 2898 newrl = revlog( |
| 2890 self.opener, | 2899 self.opener, |
| 2891 target=self.target, | 2900 target=self.target, |
| 2892 indexfile=newindexfile, | 2901 postfix=b'tmpcensored', |
| 2893 datafile=newdatafile, | 2902 indexfile=self.indexfile, |
| 2894 censorable=True, | 2903 censorable=True, |
| 2895 ) | 2904 ) |
| 2896 newrl._format_version = self._format_version | 2905 newrl._format_version = self._format_version |
| 2897 newrl._format_flags = self._format_flags | 2906 newrl._format_flags = self._format_flags |
| 2898 newrl._generaldelta = self._generaldelta | 2907 newrl._generaldelta = self._generaldelta |