On Tue, 27 Oct 2015 16:56:23 +0100 l...@gnu.org (Ludovic Courtès) wrote: > Benno Evers <be...@bmevers.de> skribis: > > > assume I have installed some package > > > > /gnu/store/xxx-daemon-1.0 > > > > After a while I notice that it's inexplicably hanging, so I do 'guix > > package -i daemon-1.0:debug', attach to the daemon with gdb, and...no > > debug symbols can be loaded! Turns out, in the meantime the hash has > > changed so i installed > > > > /gnu/store/yyy-daemon-1.0:debug > > One thing that could be done, maybe, is for ‘guix package -i’ to try to > infer the right item to install. > > That is, when running “guix package -i foo:bar”: > > 1. If no ‘foo’ is present in the profile, install the latest > ‘foo:bar’, as is already the case. > > 2. If another output of ‘foo’ is already installed, do: > > 2a. Retrieve the .drv for that item using ‘query-path-info’. > > i. If the .drv is present, parse it, and use the outputs > specified therein–i.e., the one that match. > > ii. If the .drv is missing, well, install the latest ‘foo:bar’. > > The obvious problem is that this all sounds a bit complex, and it’s > unclear whether case (i) would sufficiently frequent to justify this > complexity. > > Thoughts?
Less complex would be `guix package -i foo:bar` to effectively be `guix package -i foo foo:bar`. But then if you really only wanted foo:bar you'd have to follow up with `guix package -r foo`. -- Efraim Flashner <efr...@flashner.co.il> אפרים פלשנר GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351 Confidentiality cannot be guaranteed on emails sent or received unencrypted
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