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# Contributing
* PR or email
* this script is POSIX shell
* use [shellcheck ](https://github.com/koalaman/shellcheck ) and `checkbashisms.pl` from [debian devscripts ](http://http.debian.net/debian/pool/main/d/devscripts/devscripts_2.18.4.tar.xz )
* whitespaces, no tabs
## Adding a new distro, updating GHC versions, ...
This script makes use of two files:
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1. [.download-urls ](https://gitlab.haskell.org/haskell/ghcup/raw/master/.download-urls ),
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which is meta information on what binary tarball to download for the given version, architecture and distribution.
If you know your distribution XY works with a tarball, add a `<distroname>=<distrover>` key to that line. `<distroname>`
will be the fallback and after that `unknown` . Lines are unique per tarball url.
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2. [.available-versions ](https://gitlab.haskell.org/haskell/ghcup/raw/master/.available-versions ),
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which just lists available upstream versions and tags.
## TODO
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- [ ] FreeBSD support ([#4 ](https://gitlab.haskell.org/haskell/ghcup/issues/4 ))
- [x] Make fetching tarballs more robust ([#5 ](https://gitlab.haskell.org/haskell/ghcup/issues/5 ))
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- [x] More code documentation
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- [x] Allow to compile from source ([#2 ](https://gitlab.haskell.org/haskell/ghcup/issues/2 ))
- [x] Allow to install cabal-install as well ([#3 ](https://gitlab.haskell.org/haskell/ghcup/issues/3 ))
