[CWB] easier CWB compilation with Spack

[David Lukeš]

Oh god, it looks like mailman butchers HTML mail beyond my wildest 
expectations… :) If you’d like a more readable version of the previous 
post, please follow this link:

https://trnka.korpus.cz/~lukes/cwb.html 
<https://trnka.korpus.cz/%7Elukes/cwb.html>

Best,

David

​
On 11/03/2017 03:55 PM, David Lukeš wrote:
>
> Hi all,
>
> in light of this recent thread 
> <http://liste.sslmit.unibo.it/pipermail/cwb/2017-November/002953.html> 
> re: compiling CWB from source, it occurred to me it might be useful to 
> create a CWB package for Spack <http://spack.readthedocs.io/>. Spack 
> is a cross-platform package manager which builds software from source, 
> *automatically resolving dependencies* so you don’t have to. A second 
> advantage is that *it doesn’t need to run with admin privileges*. You 
> just need Git and a fairly recent version of Python 2 (preferably, 
> Python 3 works as well but you might hit snags).
>
> I added |cwb| and |cwb-perl| packages to a fork of Spack I maintain, 
> so installing trunk CWB can now be done like this:
>
> |git clone --depth 1 https://github.com/dlukes/spack.git cd spack # cwb 
> is installed automatically as a dependency of cwb-perl ./bin/spack 
> install cwb-perl # symlink the cwb-perl package into perl ./bin/spack 
> activate cwb-perl # create a prefix where all relevant binaries will 
> be symlinked # (change /path/to/prefix to a directory of your choice) 
> ./bin/spack view symlink /path/to/prefix cwb-perl # update your PATH 
> export PATH="/path/to/prefix/bin:$PATH" # use cwb cwb-encode ... 
> cwb-make ... cqp ... |
>
> A practical note: when testing this on Arch Linux, I found out that 
> flex 2.6.4 doesn’t compile on my system. Fortunately, with Spack, you 
> can request a specific version of a dependency:
>
> |# list information about the flex package in Spack, including # 
> available versions ./bin/spack info flex # install cwb-perl with 
> specific version of flex ./bin/spack install 'cwb-perl^flex at 2.6.3' # 
> etc. |
>
> If you’d rather use Spack’s official repository 
> <https://github.com/LLNL/spack> (though my fork differs only 
> slightly), you can, just manually add the |cwb| and |cwb-perl| package 
> definitions where they belong in Spack’s directory tree:
>
> |git clone --depth 1 https://github.com/LLNL/spack.git cd spack mkdir 
> -p var/spack/repos/builtin/packages/{cwb,cwb-perl} 
> cwb=var/spack/repos/builtin/packages/cwb/package.py 
> cwb_perl=var/spack/repos/builtin/packages/cwb-perl/package.py curl 
> https://raw.githubusercontent.com/dlukes/spack/develop/$cwb -o $cwb 
> curl https://raw.githubusercontent.com/dlukes/spack/develop/$cwb_perl 
> -o $cwb_perl ./bin/spack install cwb-perl # etc. |
>
> Note that if you have a working setup for installing CWB from source, 
> you might as well keep using it :) But if you’re starting from 
> scratch, you might find this easier, depending on circumstances. If 
> this method doesn’t work for you, let me know via the issue tracker 
> <https://github.com/dlukes/spack/issues/new> on GitHub.
>
> Best,
>
> David
>
> ​

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