Pin to a specific version

This commit is contained in:
Mats Rauhala 2020-02-01 21:44:17 +02:00
parent b93aab5742
commit 08ad6fb469
2 changed files with 17 additions and 1 deletions

7
nixpkgs.json Normal file
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@ -0,0 +1,7 @@
{
"url": "https://github.com/NixOS/nixpkgs",
"rev": "7e1f60dfbba67b975d1a77d710a6f1437fd9709c",
"date": "2020-02-01T09:20:37-05:00",
"sha256": "0vk55459iljr5dzwnr5661l44b0wdc15952lk2rjcmxr1620yr5v",
"fetchSubmodules": false
}

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@ -1,4 +1,13 @@
{ pkgs ? import <nixpkgs> {} }: let
pin = builtins.fromJSON (builtins.readFile ./nixpkgs.json);
pinnedPkgs = with pin; import (builtins.fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/${rev}.tar.gz";
inherit sha256;
}) {};
in
{ pkgs ? pinnedPkgs }:
let let
haskellPackages = pkgs.haskellPackages; haskellPackages = pkgs.haskellPackages;