Leo Famulari <l...@famulari.name> writes: > On Mon, Aug 28, 2017 at 10:32:41PM +0200, Ricardo Wurmus wrote: >> >> Ricardo Wurmus <rek...@elephly.net> writes: >> >> > You could also access the arguments of another package with >> > “package-arguments”. Using the “properties” field isn’t pretty because >> > it is a free form alist. >> > >> > You can use “find-tail” to jump to the keyword in “arguments” and then >> > pick the following value. >> >> Here an example: >> >> --8<---------------cut here---------------start------------->8--- >> (define (assoc-args-ref pkg key) >> "Return the value associated with KEY in the arguments of package PKG, >> or #F if there is no such key." >> (let ((ref (find-tail (cut eq? <> key) >> (package-arguments pkg)))) >> (and=> ref second))) >> >> (assoc-args-ref golang-github-com-audriusbutkevicius-go-nat-pmp >> #:import-path) >> >> => "github.com/AudriusButkevicius/go-nat-pmp" >> --8<---------------cut here---------------end--------------->8--- > > I didn't get very far in this direction before deciding to try another > technique. But wouldn't this not work on the build side, since (guix > packages) is not available there?
It would work because you’re executing this on the host side and paste the result into the S-expression that is the value of the “arguments” field. -- Ricardo GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC https://elephly.net
