David Thompson writes: > Ludovic Courtès <l...@gnu.org> writes: > >> Christopher Allan Webber <cweb...@dustycloud.org> skribis: >> >>> - The "hip new way" of doing things is to use Bower. Bower is a >>> package manager, but it's made specifically for static assets served >>> to the user, such as css files, fonts, javascript like jquery, etc. >>> Bower also puts these in an extlib/ or whatever, but it puts them in >>> that place *for* you. >> >> Interesting. >> >> (Thinking out lout.) >> >> Just like ‘guix system vm’ returns a script that runs QEMU with the >> right arguments, one could imagine generating a script that copies >> dependencies in the right place maybe? >> >> (define (make-installer assets) >> (gexp->script "copy-assets" >> #~(begin >> (for-each copy-file '#$@assets) >> ...))) >> >> (This could/should be turned into a package object so that adding it as >> an input would drop it in $PATH.)
The idea has me really excited. But how do I make this happen, so that copy-assets appears in $PATH? I am trying to do something with "guix environment" that does this, but I'm pretty confused as to how it could be done. How would you turn a gexp into a package object? Would it just be a lot of package object stuff stubbed out? >> The developer would have to explicitly run that script to have the files >> copied under extlib/. > > That is a really neat use of gexps, and I guess running the script > manually would be akin to running 'bower install', so that should work. > > I envision the package recipe below, is this approximately what you were > describing? > > (package > (name "mediagoblin") > (version "0.8.0") > ... > (inputs > `(("python" ,python) > ("assets" ,(web-assets jquery > videojs > bootstrap)))) > ...) Does web-assets generate that package object I assume? I tried looking for examples of other package definitions that include derivations from gexps, and couldn't find anything clear... It also isn't clear to me: is it okay for (inputs) to include things that aren't packages? I'd really like to explore this, though!