Julian Ospald 9c6cf51825

LIB: refactor FileOperation and related Errors ...

* move FileOperation/Copy/Move types to its own UtilTypes module
* remove runFileOp, since it's hard to really do the correct
  thing here for all possible exceptions... instead, let the
  GUI logic handle this
* introduce copyDirRecursiveOverwrite, copyFileOverwrite and
  easyCopyOverwrite
* use our own throwSameFile on functions to distinguish between
  "same file" and "file already exists"
* don't follow destination in copyFile* either
* improve throwSameFile, by examining device and file ids
* add isWritable
* improve documentation
* adjust and fix tests

2016-05-08 18:48:17 +02:00

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