version anomalies
Jon Turney
jon.turney@dronecode.org.uk
Wed Jan 31 17:58:00 GMT 2018
With the setup 2.885 release candidate, when selecting 'sync'
(dist-upgrade) mode, you may find you have some packages installed which
setup wants to downgrade.
Mostly, these are packages where a version was removed (or relabelled as
test), and hasn't (yet) been superseded by a higher version. Currently,
you are just supposed to know that you need to downgrade these manually.
I have written a script [1] which analyses historical setup.ini data
from the Cygwin Time Machine (thanks!), looking for anomalies with
version numbers which cause this behaviour.
(caveat: CTM only updates once per day, so problems which existed for
less than a day e.g. the recent hiccup with libgc1 [2], may not be in
this dataset)
This finds the following anomalies for x86_64:
> $ ./version-anomalies.py --arch x86_64
> package version version after circa
> gcc-ada 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-cilkplus 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-core 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-debuginfo 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-fortran 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-g++ 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-objc 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> gcc-objc++ 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libatomic1 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libcilkrts5 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libgcc1 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libgfortran3 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libgnat6 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libgomp1 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libobjc4 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libquadmath0 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> libstdc++6 6.4.0-5 6.4.0-4 circa/64bit/2018/01/20/070117 [a]
> lftp 4.8.0-1 4.7.8-2 circa/64bit/2017/10/10/051431 [b]
> lftp-debuginfo 4.8.0-1 4.7.8-2 circa/64bit/2017/10/10/051431 [b]
> fossil 20151102+1.34-1 2.3-1 circa/64bit/2017/09/25/184706 [*]
> liblz4-devel 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> liblz4_1 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> lz4 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> lz4-debuginfo 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> mingw64-i686-lz4 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> mingw64-x86_64-lz4 131-1 1.7.5-1 circa/64bit/2017/09/02/145432 [‡]
> kde-base-artwork 15.04.3-1 5.8.8-1 circa/64bit/2017/04/19/015003 [‡]
> libproj9 4.9.3-1 4.9.2-1 circa/64bit/2016/11/10/231405 [c]
> oxygen-icons 15.04.3-1 5.39.0-1 circa/64bit/2016/11/02/231610 [‡]
> libslang-devel 2.3.1pre17-1 2.3.1a-1 circa/64bit/2016/10/31/131355 [d]
> libslang2 2.3.1pre17-1 2.3.1a-1 circa/64bit/2016/10/31/131355 [d]
> slang-debuginfo 2.3.1pre17-1 2.3.1a-1 circa/64bit/2016/10/31/131355 [d]
> slsh 2.3.1pre17-1 2.3.1a-1 circa/64bit/2016/10/31/131355 [d]
> cscope 15.8.0.1-2 15.8b-1 circa/64bit/2016/06/07/161250 [*]
> perl-Carp 1.3301-2 1.38-2 circa/64bit/2015/07/30/131023 [*]
> xdelta 3.0.9-1 1.1.4-2 circa/64bit/2015/07/17/161023 [e]
> xdelta-debuginfo 3.0.9-1 1.1.4-2 circa/64bit/2015/07/17/161023 [e]
> socat 2.0.0-b7-1 1.7.3.1-1 circa/64bit/2015/03/20/171020 [f]
> perl_autorebase 001001-1 5.26.1-1 circa/64bit/2015/02/16/141018 [g]
> fossil 20140612172556-3 20151102+1.34-1 circa/64bit/2015/02/08/141019 [*]
> mingw64-x86_64-binutils 20130314-1 2.29.1.787c9873-1 circa/64bit/2014/03/16/034442 [*]
> giflib 4.2.1-1 4.1.6-12 circa/64bit/2013/07/20/142328 [§]
> giflib-debuginfo 4.2.1-1 4.1.6-12 circa/64bit/2013/07/20/142328 [§]
> libgif-devel 4.2.1-1 4.1.6-12 circa/64bit/2013/07/20/142328 [§]
> libgif4 4.2.1-1 4.1.6-12 circa/64bit/2013/07/20/142328 [§]
> xwinclip 2.0.0-1 1.19.6-1 circa/64bit/2013/06/15/131231 [†]
> w32api 20130402-svn-1 9999-1 circa/64bit/2013/04/04/130709 [*]
[a] https://cygwin.com/ml/cygwin/2018-01/msg00204.html
[b] https://cygwin.com/ml/cygwin-announce/2017-10/msg00021.html
[c] https://cygwin.com/ml/cygwin/2016-11/msg00125.html
[d] https://cygwin.com/ml/cygwin/2017-03/msg00423.html
[e] https://cygwin.com/ml/cygwin-apps/2015-07/msg00099.html
[f] https://cygwin.com/ml/cygwin/2015-03/msg00384.html
[g] https://cygwin.com/ml/cygwin/2015-02/msg00555.html
I've implemented a feature in 2.885 which causes setup to selectively
dist-upgrade package versions listed as 'replace-versions:' in
setup.ini, so problem versions can be replaced automatically, which
seems appropriate for all of these.
[*] These versions aren't ordered correctly by the version comparison we
now define
[†] A standalone xwinclip with this version existed briefly (for x86_64
only), before xwinclip was absorbed into the xorg-server source
[‡] The upstream version numbering scheme changed
[§] no idea
It's less clear what to do about these.
[1] https://github.com/jon-turney/version-anomalies
[2] https://cygwin.com/ml/cygwin-apps/2018-01/msg00047.html
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