In tools/data_source/upload.py, about line 216, galaxy attempts to
uncompressed gzip'd files in their existing location. In my case, I'm
importing files from the filesystem, and telling galaxy NOT to copy the
data into Galaxy. The 'galaxy' user doesn't have write access to these
files or folders. Galaxy complains about this when it tries to
uncompress the files.
Shouldn't galaxy uncompress the files in the database/tmp ($TEMP) folder
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