When I first started using svnmucc, it used to be the case that svnmucc 'put' --revision 0 would fail if the target file already existed. This no longer happens.
The previous behaviour was very useful, so are there any plans to reinstate it? I don't think there is a straightforward way to guarantee the same behaviour now. The closest I could get is: 1) get current parent directory revision 2) check if target file does not exist. This is not as easy as it sounds, as the target directory may have too many files to list efficiently, and any other file-based command may fail for a reason other than a missing file. 3) Put the file using the revision obtained in step 1. AFAICT this is guaranteed not to replace an existing file. However it may fail to create the file if the target directory has been updated in the meantime. It's only safe to repeat the attempted create if the command failed due to an out of date revision. So the failure reason will have to be analysed.
