Ludovic Courtès <l...@gnu.org> writes: > Hi! > > guix-comm...@gnu.org skribis: > >> commit 2a7e1121d83ee173a7a0dbfb978a4ac363c7c4a6 >> Author: Mathieu Othacehe <othac...@gnu.org> >> AuthorDate: Wed Nov 4 14:39:40 2020 +0100 >> >> guix: store: Add ensure-path. >> >> * guix/store.scm (ensure-path): New procedure. > > [...] > >> +(define-operation (ensure-path (store-path path)) >> + "Make PATH a temporary root for the duration of the current session. >> +Return #t." >> + boolean) > > Looking at LocalStore::ensurePath, I don’t think a GC root is made. > You have to call ‘add-temp-root’ if you want that to happen, no? > > However ‘ensure-path’ can substitute the store item, which I suppose > means you can substitute .drv files without building them, am I right? > :-)
That's an exciting prospect! That would help a lot with the Guix Build Coordinator, being able to substitute derivations without building them.
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