evolve: add condition in case of pubdiv to not swap the two div csets In public divergence, we have pinned the public cset to the local side when merge is performed. And in divergence resolution implementation divergent cset is the one who is kept at the local side, so to say this in one line: we have pinned public cset to the divergent side. However, in some cases we need to swap the "divergent" and "other" but we can't swap them in case of public divergence as thought would cause an error because of not being able to relocate public cset.

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#require test-repo

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  $ checkflake8() {

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  >   if ! (which flake8 > /dev/null); then

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  >     echo skipped: missing tool: flake8;

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  >     exit 80;

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  >   fi;

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  > };

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  $ checkflake8

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Copied from Mercurial core (60ee2593a270)

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  $ cd "`dirname "$TESTDIR"`"

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run flake8 if it exists; if it doesn't, then just skip

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  $ hg files -0 'set:(**.py or grep("^#!.*python")) - removed()' \

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  > -X hgext3rd/evolve/thirdparty \

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  > 2>/dev/null \

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  > | xargs -0 flake8