Public bug reported:
This is probably an incompatibility between cygwin and unison that
simply should be documented or perhaps have the code produce an error
message indicating the likely cause of the problem.
Start with a windows machine running cygwin and Unison. (In my case Win7.)
Create a tree like the following
/mydir/funtask/README.txt
/mydir/FUNTASK.EXE
Use unison against this directory and sync to a Linux machine
You will see it try to create the following on the Linux machine and
fail.
/mydir/funtask/README.txt
/mydir/FUNTASK.EXE
/mydir/funtask ; which has the same content as FUNTASK.EXE
because obviously /mydir/funtask can't be both a file and a directory at
the same time. The error message is "Destination updated during
synchronization". A .unison.... file is created as a place holder for
the file/directory that was not created.
It seems something in unison and the cygwin libraries it uses try to
create a funtask file with the same contents as FUNTASK.EXE. If I look
back at the PC, neither the ls command in cygwin nor the Windows
Explorer shows a "funtask" "file". 'just the directory.
If this behavior can't be helped due to the cygwin libraries, then it
would be good to document it and/or update the code to at least tell the
user what is possibly happening. It would be great to find a way to fix
it though because it's such an obscure and unexpected problem, users are
unlikely to be able to figure out what's going on without some
additional clues.
** Affects: unison (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1332739
Title:
EXE files and directories confused with cygwin
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