( )⚙ D462 undo: preview perf improvements

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Differential D462

undo: preview perf improvements
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Authored by felixmerk on Aug 21 2017, 2:31 PM.
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quark
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rFBHGX2ed26f4a0c71: undo: preview perf improvements
Summary

Based on Adam Simpkin's ideas, faster code for the template functions.

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rFBHGX Facebook Mercurial Extensions
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felixmerk created this revision.Aug 21 2017, 2:31 PM
Herald added a reviewer: Restricted Project. · View Herald TranscriptAug 21 2017, 2:31 PM
quark accepted this revision.Aug 21 2017, 3:18 PM
quark added a subscriber: quark.

It's now binary nodes, so maybe hex should be removed. But I'm fine with doing that in a later patch.

This revision is now accepted and ready to land.Aug 21 2017, 3:18 PM
quark added inline comments.Aug 21 2017, 3:20 PM
hgext3rd/undo.py
547

It seems _oldmarks is just a hex node. In this case we can avoid creating a ctx object:

ctxhex = ctx.hex()
for ...
    if kv[1] == ctxhex:
quark added inline comments.Aug 21 2017, 3:24 PM
hgext3rd/undo.py
528

This could also be optimized to avoid create a ctx (repo[...]) object.

felixmerk updated this revision to Diff 1132.Aug 21 2017, 4:27 PM
Closed by commit rFBHGX2ed26f4a0c71: undo: preview perf improvements (authored by felixmerk). · Explain WhyAug 21 2017, 8:18 PM
This revision was automatically updated to reflect the committed changes.

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Mhgext3rd/undo.py (18 lines)

Diff 1128

hgext3rd/undo.py

else: else:
querystring = revsetlang.formatspec('((::%ld) & draft())::', revs) querystring = revsetlang.formatspec('((::%ld) & draft())::', revs)
return subset & smartset.baseset(repo.revs(querystring)) return subset & smartset.baseset(repo.revs(querystring))
# Templates # Templates
templatefunc = registrar.templatefunc() templatefunc = registrar.templatefunc()
def _undonehexnodes(repo, reverseindex): def _undonehexnodes(repo, reverseindex):
repo = repo.unfiltered() revstring = revsetlang.formatspec('olddraft(0) - olddraft(%d)',
revstring = revsetlang.formatspec('draft() - olddraft(%d)', reverseindex) reverseindex)
revs = repo.revs(revstring) revs = repo.revs(revstring)
tonode = repo.changelog.node tonode = repo.changelog.node
hexnodes = [repo[tonode(x)] for x in revs] return [tonode(x) for x in revs]
return hexnodes
@templatefunc('undonecommits(reverseindex)') @templatefunc('undonecommits(reverseindex)')
def showundonecommits(context, mapping, args): def showundonecommits(context, mapping, args):
"""String. Changectxs added since reverseindex command.""" """String. Changectxs added since reverseindex command."""
reverseindex = templater.evalinteger(context, mapping, args[0], reverseindex = templater.evalinteger(context, mapping, args[0],
_('undonecommits needs an integer argument')) _('undonecommits needs an integer argument'))
repo = mapping['ctx']._repo repo = mapping['ctx']._repo
ctx = mapping['ctx'] ctx = mapping['ctx']
hexnodes = _undonehexnodes(repo, reverseindex) hexnodes = _undonehexnodes(repo, reverseindex)
if ctx in hexnodes: if ctx.node() in hexnodes:
result = ctx.hex() result = ctx.hex()
else: else:
result = None result = None
return result return result
def _donehexnodes(repo, reverseindex): def _donehexnodes(repo, reverseindex):
repo = repo.unfiltered() repo = repo.unfiltered()
revstring = revsetlang.formatspec('olddraft(%d)', reverseindex) revstring = revsetlang.formatspec('olddraft(%d)', reverseindex)
revs = repo.revs(revstring) revs = repo.revs(revstring)
tonode = repo.changelog.node tonode = repo.changelog.node
hexnodes = [repo[tonode(x)] for x in revs] return [tonode(x) for x in revs]
return hexnodes
@templatefunc('donecommits(reverseindex)') @templatefunc('donecommits(reverseindex)')
def showdonecommits(context, mapping, args): def showdonecommits(context, mapping, args):
"""String. Changectxs reverseindex repo states ago.""" """String. Changectxs reverseindex repo states ago."""
reverseindex = templater.evalinteger(context, mapping, args[0], reverseindex = templater.evalinteger(context, mapping, args[0],
_('donecommits needs an integer argument')) _('donecommits needs an integer argument'))
repo = mapping['ctx']._repo repo = mapping['ctx']._repo
ctx = mapping['ctx'] ctx = mapping['ctx']
hexnodes = _donehexnodes(repo, reverseindex) hexnodes = _donehexnodes(repo, reverseindex)
if ctx in hexnodes: if ctx.node() in hexnodes:
result = ctx.hex() result = ctx.hex()
else: else:
result = None result = None
return result return result
def _oldmarks(repo, reverseindex): def _oldmarks(repo, reverseindex):
nodedict = _readindex(repo, reverseindex) nodedict = _readindex(repo, reverseindex)
bookstring = _readnode(repo, "bookmarks.i", nodedict["bookmarks"]) bookstring = _readnode(repo, "bookmarks.i", nodedict["bookmarks"])
repo states ago.""" repo states ago."""
reverseindex = templater.evalinteger(context, mapping, args[0], reverseindex = templater.evalinteger(context, mapping, args[0],
_('oldbookmarks needs an integer argument')) _('oldbookmarks needs an integer argument'))
repo = mapping['ctx']._repo repo = mapping['ctx']._repo
ctx = mapping['ctx'] ctx = mapping['ctx']
oldmarks = _oldmarks(repo, reverseindex) oldmarks = _oldmarks(repo, reverseindex)
bookmarks = [] bookmarks = []
for kv in oldmarks: for kv in oldmarks:
if repo[kv[1]] == repo[ctx]: if repo[kv[1]] == ctx:
quarkUnsubmitted
Not Done

This could also be optimized to avoid create a ctx (repo[...]) object.

quark: This could also be optimized to avoid create a `ctx` (`repo[...]`) object.
bookmarks.append(kv[0]) bookmarks.append(kv[0])
active = repo._activebookmark active = repo._activebookmark
makemap = lambda v: {'bookmark': v, 'active': active, 'current': active} makemap = lambda v: {'bookmark': v, 'active': active, 'current': active}
f = templatekw._showlist('bookmark', bookmarks, mapping) f = templatekw._showlist('bookmark', bookmarks, mapping)
return templatekw._hybrid(f, bookmarks, makemap, lambda x: x['bookmark']) return templatekw._hybrid(f, bookmarks, makemap, lambda x: x['bookmark'])
@templatefunc('removedbookmarks(reverseindex)') @templatefunc('removedbookmarks(reverseindex)')
def removedbookmarks(context, mapping, args): def removedbookmarks(context, mapping, args):
"""List of Strings. Bookmarks that have been moved or removed from a given """List of Strings. Bookmarks that have been moved or removed from a given
changectx by reverseindex repo state.""" changectx by reverseindex repo state."""
reverseindex = templater.evalinteger(context, mapping, args[0], reverseindex = templater.evalinteger(context, mapping, args[0],
_('removedbookmarks needs an integer argument')) _('removedbookmarks needs an integer argument'))
repo = mapping['ctx']._repo repo = mapping['ctx']._repo
ctx = mapping['ctx'] ctx = mapping['ctx']
currentbookmarks = mapping['ctx'].bookmarks() currentbookmarks = mapping['ctx'].bookmarks()
oldmarks = _oldmarks(repo, reverseindex) oldmarks = _oldmarks(repo, reverseindex)
oldbookmarks = [] oldbookmarks = []
for kv in oldmarks: for kv in oldmarks:
if repo[kv[1]] == repo[ctx]: if repo[kv[1]] == ctx:
quarkUnsubmitted
Not Done

It seems _oldmarks is just a hex node. In this case we can avoid creating a ctx object:

ctxhex = ctx.hex()
for ...
    if kv[1] == ctxhex:
quark: It seems `_oldmarks` is just a hex node. In this case we can avoid creating a `ctx` object…
oldbookmarks.append(kv[0]) oldbookmarks.append(kv[0])
bookmarks = list(set(currentbookmarks) - set(oldbookmarks)) bookmarks = list(set(currentbookmarks) - set(oldbookmarks))
active = repo._activebookmark active = repo._activebookmark
makemap = lambda v: {'bookmark': v, 'active': active, 'current': active} makemap = lambda v: {'bookmark': v, 'active': active, 'current': active}
f = templatekw._showlist('bookmark', bookmarks, mapping) f = templatekw._showlist('bookmark', bookmarks, mapping)
return templatekw._hybrid(f, bookmarks, makemap, lambda x: x['bookmark']) return templatekw._hybrid(f, bookmarks, makemap, lambda x: x['bookmark'])
# Undo: # Undo: