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https://github.com/NixOS/nixpkgs.git
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8a0284dcd2
These dependencies need to be pulled from the same unstable commit that
cabal2nix is pulled from, otherwise changes to any of them will not be
in effect and possibly break the build.
(cherry picked from commit 631661e66c)
28 lines
1.3 KiB
Bash
Executable file
28 lines
1.3 KiB
Bash
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i bash -p coreutils curl jq gnused haskellPackages.cabal2nix-unstable.bin nix-prefetch-scripts -I nixpkgs=.
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# Updates cabal2nix-unstable to the latest master of the nixos/cabal2nix repository.
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# See regenerate-hackage-packages.sh for details on the purpose of this script.
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set -euo pipefail
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# fetch current master HEAD from Github
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head_info="$(curl -H "Accept: application/vnd.github.v3+json" https://api.github.com/repos/NixOS/cabal2nix/branches/master)"
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# extract commit hash
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commit="$(jq -r .commit.sha <<< "$head_info")"
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# extract commit timestamp and convert to date
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date="$(date "--date=$(jq -r .commit.commit.committer.date <<< "$head_info")" +%F)"
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# generate nix expression from cabal file, replacing the version with the commit date
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function mkPackage() {
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output=pkgs/development/haskell-modules/cabal2nix-unstable/$1.nix
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echo "# This file defines $1-unstable, used by maintainers/scripts/haskell/regenerate-hackage-packages.sh." > "$output"
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cabal2nix --subpath "$1" "https://github.com/NixOS/cabal2nix/archive/$commit.tar.gz" | sed -Ee 's/version = "(.*)"/version = "\1-unstable-'"$date"'"/' >> "$output"
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nixfmt "$output"
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}
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mkPackage "cabal2nix"
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mkPackage "distribution-nixpkgs"
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mkPackage "hackage-db"
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mkPackage "language-nix"
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