performance: speedup computation of extinct revisions
In their current state, revset calls can be very costly, as we test
predicates on the entire repository.
This change drops revset calls in favor of direct testing of the phase
of changesets.
Performance test on my Mercurial checkout
- 19857 total changesets,
- 1584 obsolete changesets,
- 13310 obsolescence markers.
Before:
! extinct
! wall 0.015124
After:
! extinct
! wall 0.009424
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! extinct
! wall 0.032844
After:
! extinct
! wall 0.000066
# Extension dedicated to test patch.diff() upgrade modes
#
#
from mercurial import scmutil, patch, util
def autodiff(ui, repo, *pats, **opts):
diffopts = patch.diffopts(ui, opts)
git = opts.get('git', 'no')
brokenfiles = set()
losedatafn = None
if git in ('yes', 'no'):
diffopts.git = git == 'yes'
diffopts.upgrade = False
elif git == 'auto':
diffopts.git = False
diffopts.upgrade = True
elif git == 'warn':
diffopts.git = False
diffopts.upgrade = True
def losedatafn(fn=None, **kwargs):
brokenfiles.add(fn)
return True
elif git == 'abort':
diffopts.git = False
diffopts.upgrade = True
def losedatafn(fn=None, **kwargs):
raise util.Abort('losing data for %s' % fn)
else:
raise util.Abort('--git must be yes, no or auto')
node1, node2 = scmutil.revpair(repo, [])
m = scmutil.match(repo[node2], pats, opts)
it = patch.diff(repo, node1, node2, match=m, opts=diffopts,
losedatafn=losedatafn)
for chunk in it:
ui.write(chunk)
for fn in sorted(brokenfiles):
ui.write(('data lost for: %s\n' % fn))
cmdtable = {
"autodiff":
(autodiff,
[('', 'git', '', 'git upgrade mode (yes/no/auto/warn/abort)'),
],
'[OPTION]... [FILE]...'),
}