Build using the nix flake

Dependencies

• [2] P33UMMOO Use nixUnstable
• [3] CCPSI3TP Add flake.nix
• [4] ABQZP7BB release.nix: Do not rely on currentSystem
• [5] 2IGIDHNA Replace shell.nix with a flake devShell attribute
• [6] ICYJNJWH Revert "Move build logic for the core hydra package into its own default.nix."
• [7] LOHWNXEJ Cleanup
• [8] 34UH6B6L Build against the bleeding edge of Nix
• [9] IZYR3KTL release.nix: Get rid of the "system" argument
• [10] YQWH4POV * Simplify.
• [11] UBPWXGKF Move build logic for the core hydra package into its own default.nix.
• [12] GGWH5GY7 Remove unused dependency on aws-sdk-cpp
• [13] GUOCMPZ2 Use Nix 2.0 and default GCC
• [14] LCRBIWH3 Fix building on Nixpkgs 17.09
• [15] X7IAG7JT Simplify running nix-shell
• [16] QPDG4NEU release.nix: Use fetchGit to get Nixpkgs
• [17] T4LLYESZ * Nix expression for building Hydra.
• [18] 6K5PBUUN Use buildEnv to combine Hydra's Perl dependencies
• [19] GZFKERN3 Add dependency on nix-perl
• [20] Z5OWQ4KZ Check Nix version
• [*] BAUP4PCK inNixShell considered harmful

Change contents

• edit in flake.lock at line 4
  [3.50]

  [3.50]
  + "nix": {

  + "contentHash": "sha256-rUM0KiuCRHv8WKBOfv4XKOu7WP8nsYdPdnTPZFBzjyc=",

  + "requires": {

  + "nixpkgs": {

  + "contentHash": "sha256-vy2UmXQM66aS/Kn2tCtjt9RwxfBvV+nQVb5tJQFwi8E=",

  + "uri": "github:edolstra/nixpkgs/a4d896e89932e873c4117908d558db6210fa3b56"

  + }

  + },

  + "uri": "github:NixOS/nix/3cecf3f39c5c580ed6d0c5f0bcbb09dcc53dfae4"

  + },
• replacement in flake.nix at line 8
  [3.324]→[3.324:352](∅→∅)
  − requires = [ "nixpkgs" ];
  [3.324]

  [3.352]
  + requires = [ "nixpkgs" "nix" ];
• edit in flake.nix at line 15
  [3.476]

  [3.476]
  + nix = deps.nix.provides.hydraJobs.build.x86_64-linux // {

  + perl-bindings = deps.nix.provides.hydraJobs.perlBindings.x86_64-linux;

  + };
• edit in release.nix at line 5
  [22.16]

  [5.91]
  + , pkgs ? import nixpkgs { system = "x86_64-linux"; }

  + , nix ? pkgs.nixUnstable or pkgs.nix
• replacement in release.nix at line 9
  [5.1]→[5.109:141](∅→∅)
  − with import (nixpkgs + "/lib");
  [5.1]

  [5.0]
  + with pkgs.lib;
• edit in release.nix at line 12
  [5.5]→[5.7:8](∅→∅),[5.7]→[5.7:8](∅→∅),[5.8]→[4.0:54](∅→∅)
  −

  − pkgs = import nixpkgs { system = "x86_64-linux"; };
• edit in release.nix at line 46
  [5.1187]→[5.1187:1188](∅→∅),[5.1188]→[2.36:78](∅→∅)
  −

  − nix = pkgs.nixUnstable or pkgs.nix;