Haskell stack script extra deps

Question

In a normal stack project, I can add extra-deps in the stack.yaml file:

extra-deps:
- text-1.2.2.0
- unm-hip-0.3.1.6
- safe-exceptions-0.1.4.0
- quickcheck-properties-0.1
- time-interval-0.1.1
- time-units-1.0.0
- snowball-1.0.0.1
- dictionaries-0.1.0.0
resolver: lts-8.3

allow-newer: true

But how do I do this in a script?

#!/usr/bin/env stack
{- stack
    --resolver lts-8.5
    --install-ghc
    runghc
    --package MissingH
    --package process
    --package attoparsec
    --package split
    --package dictionaries
    --package bytestring
-}

Have you tried simply specifying the package versions in the `--package` flags? E.g. `--package MissingH-X.Y.Z`. — sjakobi, Mar 13 '17 at 22:34
Yes, I get `Plan construction failed.` The `dictionaries` package is not in stackage. — McBear Holden, Mar 14 '17 at 07:00
this works `stack runghc --resolver lts-12.20 --package raven-haskell-0.1.2.0 ./using-sentry.hs` — nicolas, Dec 01 '18 at 16:32

score 3 · Accepted Answer · answered Dec 01 '18 at 16:42

3

It is possible to specify extra packages on the commande line using e.g.

stack runghc --resolver lts-12.20 --package raven-haskell-0.1.2.0 ./using-sentry.hs

it does not work with shebang style, inside the file AFAICT

answered Dec 01 '18 at 16:42

nicolas

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score 3 · Answer 2 · answered May 12 '20 at 18:20

3

When using shebang style, you can (now at least) do --extra-dep mypackage-1.3.3.7 within the script.

Credit to @lyxia for pointing me to this (and more generally that I should check stack script --help).

answered May 12 '20 at 18:20

bbarker

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Haskell stack script extra deps

2 Answers2