fileset: add kind:pat operator ":" isn't taken as a symbol character but an infix operator so we can write e.g. "path:'foo bar'" as well as "'path:foo bar'". An invalid pattern kind is rejected in the former form as we know a kind is specified explicitly. The binding strength is copied from "x:y" range operator of revset. Perhaps it can be adjusted later if we want to parse "foo:bar()" as "(foo:bar)()", not "foo:(bar())". We can also add "kind:" postfix operator if we want. One possible confusion is that the scope of the leading "set:" vs "kind:pat" operator. The former is consumed by a matcher so applies to the whole fileset expression: $ hg files 'set:foo() or kind:bar or baz' ^^^^^^^^^^^^^^^^^^^^^^^^ Whereas the scope of kind:pat operator is narrow: $ hg files 'set:foo() or kind:bar or baz' ^^^

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#require no-pure

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A script to generate nasty diff worst-case scenarios:

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  $ cat > s.py <<EOF

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  > import random

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  > for x in xrange(100000):

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  >     print

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  >     if random.randint(0, 100) >= 50:

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  >         x += 1

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  >     print(hex(x))

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  > EOF

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  $ hg init a

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  $ cd a

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Check in a big file:

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  $ $PYTHON ../s.py > a

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  $ hg ci -qAm0

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Modify it:

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  $ $PYTHON ../s.py > a

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Time a check-in, should never take more than 10 seconds user time:

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  $ hg ci --time -m1

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  time: real .* secs .user [0-9][.].* sys .* (re)