comparison mercurial/fileset.py @ 38865:899b4c74209c

fileset: combine union of basic patterns into single matcher

This appears to improve query performance in a big repository than I thought.
Writing less Python in a hot loop, faster computation we gain.

  $ hg files --cwd mozilla-central --time 'set:a* + b* + c* + d* + e*'
  (orig) time: real 0.670 secs (user 0.640+0.000 sys 0.030+0.000)
  (new)  time: real 0.210 secs (user 0.180+0.000 sys 0.020+0.000)

38864:73731fa8d1bd

    return mctx.matcher([x])

def kindpatmatch(mctx, x, y):
    return stringmatch(mctx, _getkindpat(x, y, matchmod.allpatternkinds,
                                         _("pattern must be a string")))

def andmatch(mctx, x, y):
    xm = getmatch(mctx, x)
    ym = getmatch(mctx, y)
    return matchmod.intersectmatchers(xm, ym)

methods = {
    'string': stringmatch,
    'symbol': stringmatch,
    'kindpat': kindpatmatch,
    'and': andmatch,
    'or': ormatch,
    'minus': minusmatch,
    'list': listmatch,
    'not': notmatch,

38865:899b4c74209c

    return mctx.matcher([x])

def kindpatmatch(mctx, x, y):
    return stringmatch(mctx, _getkindpat(x, y, matchmod.allpatternkinds,
                                         _("pattern must be a string")))

def patternsmatch(mctx, *xs):
    allkinds = matchmod.allpatternkinds
    patterns = [getpattern(x, allkinds, _("pattern must be a string"))
                for x in xs]
    return mctx.matcher(patterns)

def andmatch(mctx, x, y):
    xm = getmatch(mctx, x)
    ym = getmatch(mctx, y)
    return matchmod.intersectmatchers(xm, ym)

methods = {
    'string': stringmatch,
    'symbol': stringmatch,
    'kindpat': kindpatmatch,
    'patterns': patternsmatch,
    'and': andmatch,
    'or': ormatch,
    'minus': minusmatch,
    'list': listmatch,
    'not': notmatch,