add: notify when adding a file that would cause a case-folding collision On a case-sensitive file system, files can be added with names that differ only in case (a "case collision"). This would cause an error on case-insensitive filesystems. A warning or error is now given for such collisions, depending on the value of ui.portablefilenames ('warn', 'abort', or 'ignore'): $ touch file File $ hg add --config ui.portablefilenames=abort File abort: possible case-folding collision for File $ hg add File warning: possible case-folding collision for File

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run only on case-sensitive filesystems

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  $ "$TESTDIR/hghave" no-icasefs || exit 80

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test file addition with colliding case

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  $ hg init repo1

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  $ cd repo1

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  $ echo a > a

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  $ echo A > A

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  $ hg add a

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  $ hg st

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  A a

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  ? A

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  $ hg add --config ui.portablefilenames=abort A

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  abort: possible case-folding collision for A

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  [255]

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  $ hg st

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  A a

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  ? A

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  $ hg add A

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  warning: possible case-folding collision for A

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  $ hg st

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  A A

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  A a

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  $ hg forget A

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  $ hg st

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  A a

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  ? A

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  $ hg add --config ui.portablefilenames=no A

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  $ hg st

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  A A

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  A a

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  $ cd ..