[Haskell-cafe] Package Management with Stack?
adam at bergmark.nl
Sat Mar 11 12:21:14 UTC 2017
On Sat, 11 Mar 2017 at 01:38 Jun Inoue <jun.lambda at gmail.com> wrote:
> Thanks for the suggestion, Adam. That does it for xmonad-contrib.
> Unfortunately, it fails when I go on to add xmonad-extras, probably
> because the version of xmonad already installed can't be resolved with
> the available version(s) of xmonad-extras. (I forgot to note exactly
> which packages I had before, so I'm installing these things one by
> one, based on compilation errors of ~/.xmonad/xmonad.hs.)
> $ stack install xmonad-extras hint-0.6.0 libmpd-0.9.0.6 --resolver
> Error: While constructing the build plan, the following exceptions
> were encountered:
> In the dependencies for xmonad-extras-0.12.1:
> hint-0.6.0 must match >=0.3.3.3 && <0.5 (latest applicable is 0.4.3)
> libmpd-0.9.0.6 must match >=0.8 && <0.9 (latest applicable is
> xmonad-0.13 must match >=0.10 && <0.13 (latest applicable is 0.12)
> xmonad-contrib must match >=0.10 && <0.13, but the stack
> configuration has no specified version
> (latest applicable is 0.12)
> Recommended action: try adding the following to your extra-deps in
> - xmonad-contrib-0.12
> You may also want to try the 'stack solver' command
> Plan construction failed.
> Adding the fact that I seem to have to list a lot of deps on the
> command line or in stack.yaml and Brandon's suggestion that I'm using
> this tool for the wrong purpose, this seems like a deal breaker for me
It's not that you are using the wrong tool, there is no tool that would let
you install incompatible versions together! (There is --allow-newer in
stack and cabal-install but then you are even less likely to end up with
something that works)
But once you get these mismatches I find cabal-install (in an empty
sandbox) easier to use for debugging:
$ cabal install xmonad xmonad-contrib xmonad-extras --dry
In order, the following would be installed (use -v for more details):
X11-18.104.22.168 (latest: 1.8)
xmonad-0.12 (latest: 0.13)
xmonad-contrib-0.12 (latest: 0.13)
cabal-install always tries to pick the latest versions so this implies that
xmonad-extras can't use the latest xmonad & xmonad-contrib. So if you are
fine using older versions of those: there you go!
You can verify this further by adding constraints:
$ cabal install 'xmonad>=0.13' 'xmonad-contrib>=0.13' xmonad-extras --dry
cabal: Could not resolve dependencies:
trying: xmonad-0.13 (user goal)
trying: base-22.214.171.124/installed-4.9... (dependency of xmonad-0.13)
next goal: xmonad-extras (user goal)
rejecting: xmonad-extras-0.12.1, xmonad-extras-0.12 (conflict: xmonad==0.13,
xmonad-extras => xmonad>=0.10 && <0.13)
rejecting: xmonad-extras-0.11 (conflict: xmonad==0.13, xmonad-extras =>
xmonad>=0.10 && <0.12)
rejecting: xmonad-extras-0.10.1.2, xmonad-extras-0.10.1.1,
xmonad-extras-0.10.1, xmonad-extras-0.10 (conflict: xmonad==0.13,
xmonad-extras => xmonad>=0.10 && <0.11)
rejecting: xmonad-extras-0.9.2, xmonad-extras-0.9.1 (conflict: xmonad==0.13,
xmonad-extras => xmonad>=0.9 && <0.10)
rejecting: xmonad-extras-0.9, xmonad-extras-0.0 (conflict:
base==126.96.36.199/installed-4.9..., xmonad-extras => base>=3 && <4 || <3)
Dependency tree exhaustively searched.
What you really want is some blessed combination of packages that work
together, and this is exactly what a stackage snapshot would give you if
these packages were all part of stackage...
But it's true that stack isn't a package manager and there is no active
effort within stackage to make as many executables as possible installable.
> On Sat, Mar 11, 2017 at 4:11 AM, Adam Bergmark <adam at bergmark.nl> wrote:
> > I use the global stack environment to install most executables, it works
> > best when the package is in a snapshot of course. There is no need to
> > the global config, try this: stack install xmonad-contrib X11-xft-0.3.1
> > --resolver lts-8.4
> > You can also look for a stack.yaml in the repo of the executable and use
> > that resolver + any extra deps on the command line, that'll most likely
> > even if the package isn't in a snapshot.
> > HTH,
> > Adam
> > On Fri, 10 Mar 2017 at 18:56 Matt <parsonsmatt at gmail.com> wrote:
> >> Stack does have a notion of a global project, which it uses if you're
> >> in a project directory. The error message you received:
> >> Error: While constructing the build plan, the following exceptions
> >> were encountered:
> >> In the dependencies for xmonad-contrib-0.13:
> >> X11-xft must match >=0.2, but the stack configuration has no
> >> specified version (latest applicable is 0.3.1)
> >> Recommended action: try adding the following to your extra-deps in
> >> /home/jun/.stack/global-project/stack.yaml:
> >> - X11-xft-0.3.1
> >> tells you how to make X11-xft-0.3.1 available to the global project,
> >> should allow you to install xmonad-contrib into this global package.
> >> Matt Parsons
> >> On Fri, Mar 10, 2017 at 10:33 AM, Brandon Allbery <allbery.b at gmail.com>
> >> wrote:
> >>> On Fri, Mar 10, 2017 at 12:28 PM, Jun Inoue <jun.lambda at gmail.com>
> >>>> Am I fundamentally misunderstanding how stack is supposed to be used?
> >>> Stack is not a package manager. It is a reproducible builds tool. Ad
> >>> usage like you are doing is outside of its purview.
> >>> Also, last I checked, for some reason xmonad-contrib wasn't in
> >>> so stack's primary mechanism for avoiding conflicts fails.
> >>> --
> >>> brandon s allbery kf8nh sine nomine
> >>> associates
> >>> allbery.b at gmail.com
> >>> ballbery at sinenomine.net
> >>> unix, openafs, kerberos, infrastructure, xmonad
> >>> http://sinenomine.net
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> Jun Inoue
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