Hi George,
> My thinking is that if there was an easy way to produce “manifests as
> passed to ‘guix package -m’” from profiles, it would be a handy: an easy
> way for someone that has gone down the incremental path to switch to
> manifests and an easy way to update one's manifest after incremental
> changes.
Do you mean something like this?
--8<---------------cut here---------------start------------->8---
(use-modules (guix profiles)
(ice-9 match)
(ice-9 pretty-print))
(match (command-line)
((_ where)
(pretty-print
`(specifications->manifest
',(map manifest-entry-name (manifest-entries (profile-manifest where))))))
(_ (error "Please provide the path to a Guix profile.")))
--8<---------------cut here---------------end--------------->8---
You can put this in a file “manifest-to-manifest.scm” and run it like
this from a Guix source checkout:
./pre-inst-env guile -s manifest-to-manifest.scm /path/to/.guix-profile >
my-manifest.scm
You can then proceed to install the generated manifest with:
guix package -m my-manifest.scm -p /path/to/new/.guix-profile
If that’s what you’re looking for I suppose we could find a place for
something like that under the umbrella of “guix package”.
--
Ricardo
