Mercurial > hg
view tests/test-storage.py @ 45584:4c8a93ec6908
merge: store commitinfo if these is a dc or cd conflict
delete-changed or changed-delete conflicts can either be resolved by mergetool,
if some tool is passed and using or by user choose something on prompt or user
doing some `hg revert` after choosing the file to remain conflicted.
If the user decides to keep the changed side, on commit we just reuse the parent
filenode. This is mostly fine unless we are in a distributed environment and
people are doing criss-cross merges.
Since, we don't have recursive merges or any other way of describing the end
result of the merge was an explicit choice and it should be differentiated from
it's ancestors, merge algo during criss-cross merges fails to take in account
the explicit choice made by user and end up with a what-can-be-said-wrong-merge.
The solution which we are trying to fix this is by creating a filenode on commit
instead of reusing the parent filenode. This helps differentiate between
pre-merged filenode and post-merge filenode and kind of tells about the choice
user made.
To implement creating new filenode functionality, we store info about these
files in mergestate so that we can read them on commit and force create a new
filenode.
Differential Revision: https://phab.mercurial-scm.org/D8988
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Thu, 03 Sep 2020 13:44:06 +0530 |
parents | 2372284d9457 |
children | 6000f5b25c9b |
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# This test verifies the conformance of various classes to various # storage interfaces. from __future__ import absolute_import import silenttestrunner from mercurial import ( error, filelog, revlog, transaction, ui as uimod, vfs as vfsmod, ) from mercurial.testing import storage as storagetesting try: from hgext import sqlitestore except ImportError: sqlitestore = None try: import sqlite3 if sqlite3.sqlite_version_info < (3, 8, 3): # WITH clause not supported sqlitestore = None except ImportError: pass try: from mercurial import zstd zstd.__version__ except ImportError: zstd = None STATE = { 'lastindex': 0, 'ui': uimod.ui(), 'vfs': vfsmod.vfs(b'.', realpath=True), } def makefilefn(self): """Factory for filelog instances.""" fl = filelog.filelog(STATE['vfs'], b'filelog-%d' % STATE['lastindex']) STATE['lastindex'] += 1 return fl def maketransaction(self): vfsmap = {b'plain': STATE['vfs'], b'store': STATE['vfs']} return transaction.transaction( STATE['ui'].warn, STATE['vfs'], vfsmap, b'journal', b'undo' ) def addrawrevision( self, fl, tr, node, p1, p2, linkrev, rawtext=None, delta=None, censored=False, ellipsis=False, extstored=False, ): flags = 0 if censored: flags |= revlog.REVIDX_ISCENSORED if ellipsis: flags |= revlog.REVIDX_ELLIPSIS if extstored: flags |= revlog.REVIDX_EXTSTORED if rawtext is not None: fl._revlog.addrawrevision(rawtext, tr, linkrev, p1, p2, node, flags) elif delta is not None: fl._revlog.addrawrevision( rawtext, tr, linkrev, p1, p2, node, flags, cachedelta=delta ) else: raise error.Abort('must supply rawtext or delta arguments') # We may insert bad data. Clear caches to prevent e.g. cache hits to # bypass hash verification. fl._revlog.clearcaches() # Assigning module-level attributes that inherit from unittest.TestCase # is all that is needed to register tests. filelogindextests = storagetesting.makeifileindextests( makefilefn, maketransaction, addrawrevision ) filelogdatatests = storagetesting.makeifiledatatests( makefilefn, maketransaction, addrawrevision ) filelogmutationtests = storagetesting.makeifilemutationtests( makefilefn, maketransaction, addrawrevision ) def makesqlitefile(self): path = STATE['vfs'].join(b'db-%d.db' % STATE['lastindex']) STATE['lastindex'] += 1 db = sqlitestore.makedb(path) compression = b'zstd' if zstd else b'zlib' return sqlitestore.sqlitefilestore(db, b'dummy-path', compression) def addrawrevisionsqlite( self, fl, tr, node, p1, p2, linkrev, rawtext=None, delta=None, censored=False, ellipsis=False, extstored=False, ): flags = 0 if censored: flags |= sqlitestore.FLAG_CENSORED if ellipsis | extstored: raise error.Abort( b'support for ellipsis and extstored flags not ' b'supported' ) if rawtext is not None: fl._addrawrevision(node, rawtext, tr, linkrev, p1, p2, flags=flags) elif delta is not None: fl._addrawrevision( node, rawtext, tr, linkrev, p1, p2, storedelta=delta, flags=flags ) else: raise error.Abort(b'must supply rawtext or delta arguments') if sqlitestore is not None: sqlitefileindextests = storagetesting.makeifileindextests( makesqlitefile, maketransaction, addrawrevisionsqlite ) sqlitefiledatatests = storagetesting.makeifiledatatests( makesqlitefile, maketransaction, addrawrevisionsqlite ) sqlitefilemutationtests = storagetesting.makeifilemutationtests( makesqlitefile, maketransaction, addrawrevisionsqlite ) if __name__ == '__main__': silenttestrunner.main(__name__)