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#! /usr/bin/env nix-shell
#! nix-shell -i bash -p nix curl gnused -I nixpkgs=.
# On Hackage every package description shows a category "Distributions" which
# lists a "NixOS" version.
# This script uploads a csv to hackage which will update the displayed versions
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# based on the current versions in nixpkgs. This happens with a simple http
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# request.
# For authorization you just need to have any valid hackage account. This
# script uses the `username` and `password-command` field from your
# ~/.cabal/config file.
# e.g. username: maralorn
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# password-command: pass hackage.haskell.org (this can be any command, but not an arbitrary shell expression. Like cabal we only read the first output line and ignore the rest.)
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# Those fields are specified under `upload` on the `cabal` man page.
package_list = " $( nix-build -A haskell.package-list) /nixos-hackage-packages.csv "
username = $( grep "^username:" ~/.cabal/config | sed "s/^username: //" )
password_command = $( grep "^password-command:" ~/.cabal/config | sed "s/^password-command: //" )
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curl -u " $username : $( $password_command | head -n1) " --digest -H "Content-type: text/csv" -T " $package_list " http://hackage.haskell.org/distro/NixOS/packages.csv
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echo