Ludovic Courtès (2016-01-12 23:35 +0300) wrote: > Alex Kost <alez...@gmail.com> skribis: > >> * emacs/guix-main.scm (system-generation-boot-parameters) >> (system-generation-param-alist, system-generation-sexps): New procedures. >> (entries): Add 'system-generation' entry type. >> * emacs/guix-messages.el (guix-result-message): Use the same messages >> for 'generation' and 'system-generation' entry types. >> * emacs/guix-ui-system-generation.el: New file. >> * emacs.am (ELFILES): Add it. >> * doc/emacs.texi (Emacs Commands): Document new commands. >> * NEWS: Mention new interface. > > [...] > >> +Analogously on GuixSD you can also display system generations: >> + >> +@table @kbd >> +@item M-x guix-system-generations >> +@item M-x guix-last-system-generations >> +@item M-x guix-system-generations-by-time >> +@end table > > As simple as this. :-) > > And I guess it’s also possible to select generations, delete them, and > switch to a specific one, as with M-x guix-generations?
Well yes, but only if emacs was started with root privileges. At first I was going to remove support for deleting/switching system generations because of this, but then I left it, as I thought there might exist users who run emacs from "root" for some reason, and such manipulating system generations may be useful for them. > Though maybe it would have to use > “sudo:localhost:/run/current-system/profile” (via Tramp) to be able to > modify things. Maybe it could somehow offer to gain root privileges > when performing an action? I don't see how it can be done, since we use a guile REPL to perform such actions (for example, ‘delete-generations’ procedure from (guix scripts package) module). But the REPL is started with the same privileges as emacs. -- Alex
