Mercurial > hg
view tests/autodiff.py @ 18275:9818f22785b7
performance: speedup computation of unstable revisions
In their current state, revset calls can be very costly, as we test
predicates on the entire repository.
This change drops revset call 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:
! unstable
! wall 0.017366
After this changes:
! unstable
! wall 0.008093
Performance test on a Mozilla central checkout:
- 117293 total changesets,
- 1 obsolete changeset,
- 1 obsolescence marker.
Before:
! unstable
! wall 0.045190
After:
! unstable
! wall 0.000032
author | Pierre-Yves David <pierre-yves.david@ens-lyon.org> |
---|---|
date | Fri, 04 Jan 2013 03:15:21 +0100 |
parents | a08775ec89f2 |
children | 51e5c793a9f4 |
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# 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]...'), }