Using .tar.xz packages adds about 4500 additional packages that can be
tested and changes many existing packages where a more recent version
can be used now that is only available as .tar.xz file.
Related ticket: https://trac.cppcheck.net/ticket/9508
donate-cpu.py: Require at least Python 3.4
xz support was added with 3.3.
There were two issues:
1. The version was not correctly extracted out of the filename. When
extracting a sub-string in Python one has to specify start index and
end index instead of start index and length.
2. The function `semver.cmp()` does nothing useful. Instead the function
`semver.compare()` must be called when two version should be compared.
See https://github.com/python-semver/python-semver/issues/117#issuecomment-479188221
Because `semver.compare()` now really compares the versions it is
possible that an exception is thrown if a version is not in the semver
version format. In such cases the sorting is aborted and the last
filename in the array is returned. This is often but not always already
the latest version from what I have seen.
In my tests there were about 1500 additional packages
available as bz2 on the server.
For some packages a newer version is now used if it is
only available as .tar.bz2 archive.
The donate-cpu.py client is tested to work with .tar.bz2
files under Python 2.7.15 and 3.6.8.
Sebastian
Bo Rydberg
Daniel Marjamäki