fold: allow operations on merge commits with some conditions It's possible to fold revision chains that include a single merge commit: just fold everything into the merge commit while saving its other parent (so it continues being a merge commit). It's also possible to fold revisions that include multiple merge commits, on the condition that they merge with not more than 2 external changesets (i.e. a changesets that aren't going to be folded).

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#require test-repo pyflakes

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Copied from Mercurial core (60ee2593a270)

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  $ cd "`dirname "$TESTDIR"`"

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run pyflakes on all tracked files ending in .py or without a file ending

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(skipping binary file random-seed)

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  $ hg locate -I 'set:(**.py or grep("^#!.*python")) - removed()' 2>/dev/null \

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  > | xargs pyflakes 2>/dev/null