Mercurial > hg
view tests/flagprocessorext.py @ 33003:f63d111258da
revset: add startdepth limit to ancestors() as internal option
This is necessary to implement the set{gen} (set subscript) operator. For
example, set{-n} will be translated to ancestors(set, depth=n, startdepth=n).
https://www.mercurial-scm.org/wiki/RevsetOperatorPlan#ideas_from_mpm
The UI is undecided and I doubt if the startdepth option would be actually
useful, so the option is hidden for now. 'depth' could be extended to take
min:max range, in which case, integer depth should select a single generation.
ancestors(set, depth=:y) # scan up to y-th generation
ancestors(set, depth=x:) # skip until (x-1)-th generation
ancestors(set, depth=x) # select only x-th generation
Any ideas are welcomed.
# reverse(ancestors(tip)) using hg repo
3) 0.075951
4) 0.076175
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sun, 18 Jun 2017 00:40:58 +0900 |
parents | 77f746e5383a |
children | 3e3f4c03876b |
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# coding=UTF-8 from __future__ import absolute_import import base64 import zlib from mercurial import ( changegroup, exchange, extensions, filelog, revlog, util, ) # Test only: These flags are defined here only in the context of testing the # behavior of the flag processor. The canonical way to add flags is to get in # touch with the community and make them known in revlog. REVIDX_NOOP = (1 << 3) REVIDX_BASE64 = (1 << 2) REVIDX_GZIP = (1 << 1) REVIDX_FAIL = 1 def validatehash(self, text): return True def bypass(self, text): return False def noopdonothing(self, text): return (text, True) def b64encode(self, text): return (base64.b64encode(text), False) def b64decode(self, text): return (base64.b64decode(text), True) def gzipcompress(self, text): return (zlib.compress(text), False) def gzipdecompress(self, text): return (zlib.decompress(text), True) def supportedoutgoingversions(orig, repo): versions = orig(repo) versions.discard('01') versions.discard('02') versions.add('03') return versions def allsupportedversions(orig, ui): versions = orig(ui) versions.add('03') return versions def noopaddrevision(orig, self, text, transaction, link, p1, p2, cachedelta=None, node=None, flags=revlog.REVIDX_DEFAULT_FLAGS): if '[NOOP]' in text: flags |= REVIDX_NOOP return orig(self, text, transaction, link, p1, p2, cachedelta=cachedelta, node=node, flags=flags) def b64addrevision(orig, self, text, transaction, link, p1, p2, cachedelta=None, node=None, flags=revlog.REVIDX_DEFAULT_FLAGS): if '[BASE64]' in text: flags |= REVIDX_BASE64 return orig(self, text, transaction, link, p1, p2, cachedelta=cachedelta, node=node, flags=flags) def gzipaddrevision(orig, self, text, transaction, link, p1, p2, cachedelta=None, node=None, flags=revlog.REVIDX_DEFAULT_FLAGS): if '[GZIP]' in text: flags |= REVIDX_GZIP return orig(self, text, transaction, link, p1, p2, cachedelta=cachedelta, node=node, flags=flags) def failaddrevision(orig, self, text, transaction, link, p1, p2, cachedelta=None, node=None, flags=revlog.REVIDX_DEFAULT_FLAGS): # This addrevision wrapper is meant to add a flag we will not have # transforms registered for, ensuring we handle this error case. if '[FAIL]' in text: flags |= REVIDX_FAIL return orig(self, text, transaction, link, p1, p2, cachedelta=cachedelta, node=node, flags=flags) def extsetup(ui): # Enable changegroup3 for flags to be sent over the wire wrapfunction = extensions.wrapfunction wrapfunction(changegroup, 'supportedoutgoingversions', supportedoutgoingversions) wrapfunction(changegroup, 'allsupportedversions', allsupportedversions) # Teach revlog about our test flags flags = [REVIDX_NOOP, REVIDX_BASE64, REVIDX_GZIP, REVIDX_FAIL] revlog.REVIDX_KNOWN_FLAGS |= util.bitsfrom(flags) revlog.REVIDX_FLAGS_ORDER.extend(flags) # Teach exchange to use changegroup 3 for k in exchange._bundlespeccgversions.keys(): exchange._bundlespeccgversions[k] = '03' # Add wrappers for addrevision, responsible to set flags depending on the # revision data contents. wrapfunction(filelog.filelog, 'addrevision', noopaddrevision) wrapfunction(filelog.filelog, 'addrevision', b64addrevision) wrapfunction(filelog.filelog, 'addrevision', gzipaddrevision) wrapfunction(filelog.filelog, 'addrevision', failaddrevision) # Register flag processors for each extension revlog.addflagprocessor( REVIDX_NOOP, ( noopdonothing, noopdonothing, validatehash, ) ) revlog.addflagprocessor( REVIDX_BASE64, ( b64decode, b64encode, bypass, ), ) revlog.addflagprocessor( REVIDX_GZIP, ( gzipdecompress, gzipcompress, bypass ) )