Hi Carlo,
Carlo Ascani via <help-guix@gnu.org> writes:
Hi all,
I would like to create a shell with pinned versions of elm and
make.
Questions:
- To pin a version of a package, is it enough to use
<package>@<version>?
- Should I put in channels information?
In the manual I read this:
If you want to “pin” your software environment to specific
package
versions and variants, you need an additional piece of
information:
the list of channel revisions in use, as returned by guix
describe.
The quoted part of the manual answers your question. The reason
why this is so is that the version of a package available may
change between channel revisions, so if you pin foobar@1.2.3, then
`guix pull', the HEAD of the channel defining the foo package may
have updated it to 1.2.4, and then your profile breaks because it
references a package which doesn’t exist.
-- Ian
