Deprecate the online flake registries and vendor the default registry

Fixes #183, #110, #116.

The default flake-registry option becomes 'vendored', and refers
to a vendored flake-registry.json file in the install path.

Vendored copy of the flake-registry is from github:NixOS/flake-registry
at commit 9c69f7bd2363e71fe5cd7f608113290c7614dcdd.

Change-Id: I752b81c85ebeaab4e582ac01c239d69d65580f37

3 files changed, 419 insertions, 0 deletions

diff --git a/misc/flake-registry/flake-registry.json b/misc/flake-registry/flake-registry.json
new file mode 100644
index 000000000..d83ace92b
--- /dev/null
+++ b/misc/flake-registry/flake-registry.json
@@ -0,0 +1,414 @@
+{
+  "flakes": [
+    {
+      "from": {
+        "id": "agda",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "agda",
+        "repo": "agda",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "arion",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "hercules-ci",
+        "repo": "arion",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "blender-bin",
+        "type": "indirect"
+      },
+      "to": {
+        "dir": "blender",
+        "owner": "edolstra",
+        "repo": "nix-warez",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "bundlers",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "bundlers",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "cachix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "cachix",
+        "repo": "cachix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "composable",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "ComposableFi",
+        "repo": "composable",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "disko",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "disko",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "dreampkgs",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "dreampkgs",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "dwarffs",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "edolstra",
+        "repo": "dwarffs",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "emacs-overlay",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "emacs-overlay",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "fenix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "fenix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "flake-parts",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "flake-utils",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "gemini",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "flake-gemini",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "helix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "helix-editor",
+        "repo": "helix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "hercules-ci-agent",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-agent",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "hercules-ci-effects",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "hercules-ci",
+        "repo": "hercules-ci-effects",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "home-manager",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "hydra",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "hydra",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "mach-nix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "DavHau",
+        "repo": "mach-nix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nickel",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "tweag",
+        "repo": "nickel",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nimble",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "flake-nimble",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "nix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nix-darwin",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "LnL7",
+        "repo": "nix-darwin",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nix-serve",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "edolstra",
+        "repo": "nix-serve",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nixops",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "nixops",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nixos-hardware",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "nixos-hardware",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nixos-homepage",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "nixos-homepage",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nixos-search",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "nixos-search",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nixpkgs",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "nur",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "NUR",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "patchelf",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "patchelf",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "poetry2nix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-community",
+        "repo": "poetry2nix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "pridefetch",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "SpyHoodle",
+        "repo": "pridefetch",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "sops-nix",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "Mic92",
+        "repo": "sops-nix",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "systems",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    {
+      "from": {
+        "id": "templates",
+        "type": "indirect"
+      },
+      "to": {
+        "owner": "NixOS",
+        "repo": "templates",
+        "type": "github"
+      }
+    }
+  ],
+  "version": 2
+}
diff --git a/misc/flake-registry/meson.build b/misc/flake-registry/meson.build
new file mode 100644
index 000000000..674ee8dbf
--- /dev/null
+++ b/misc/flake-registry/meson.build
@@ -0,0 +1,4 @@
+install_data(
+  'flake-registry.json',
+  install_dir : datadir,
+)
diff --git a/misc/meson.build b/misc/meson.build
index a6d1f944b..a8f09722c 100644
--- a/misc/meson.build
+++ b/misc/meson.build
@@ -3,3 +3,4 @@ subdir('fish')
 subdir('zsh')
 
 subdir('systemd')
+subdir('flake-registry')