bug#19772: Verbosity of guix build output

[Ludovic Courtès]

Andrei Osipov <address@hidden> skribis:

> The output of confugre scripts and make can be either suppressed or
> redirected to file by guix build. It makes easy to track the current
> step of building process. 

Just to be clear, I suppose you don’t just want something equivalent to:

  guix build foo > /dev/null

right?

So would you like to get rid of all the build output except the “build
trace” lines, those that look like:

  @ build-succeeded 
/gnu/store/n2yd2d3vxwidmqgzi1i3svqq5qjaczv7-inkscape-0.91.tar.gz.drv -
  @ build-started 
/gnu/store/5wp9r4mc3rwwp6x4vn422wy9s83nwqjv-gtkmm-2.24.2.tar.xz.drv - 
x86_64-linux /var/log/guix/drvs/5w//p9r4mc3rwwp6x4vn422wy9s83nwqjv-gtkmm-2.24

Or something else?

TIA,
Ludo’.