use nixpkgs-unstable channel (#58)

Author: vic

dev/flake.lock

@@ -27,7 +27,7 @@
       };
       url = "github:nix-community/nix-unit";
     };
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     nixpkgs-lib.follows = "nixpkgs";
     systems.url = "github:nix-systems/default";
     treefmt-nix = {

dev/flake.nix

@@ -6,7 +6,7 @@ let
   isEmpty =
     x:
     (
-      (builtins.isNull x)
+      (isNull x)
       || (lib.isStringLike x && lib.stringLength (lib.trim x) == 0)
       || (lib.isList x && lib.length x == 0)
       || (lib.isAttrs x && x == { })

dev/modules/_lib/default.nix

@@ -2,7 +2,7 @@
 {
 
   flake-file.inputs = {
-    nixpkgs.url = lib.mkDefault "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = lib.mkDefault "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     nixpkgs-lib.follows = lib.mkDefault "nixpkgs";
   };
 

modules/dendritic/nixpkgs.nix

@@ -53,13 +53,13 @@ let
     else if lib.isAttrs x then
       lib.pipe x [
         (lib.mapAttrsToList nixAttr)
-        (map ({ name, value }: ''${name} = ${nixCode value}; ''))
-        (values: ''{ ${lib.concatStringsSep " " values} }'')
+        (map ({ name, value }: "${name} = ${nixCode value}; "))
+        (values: "{ ${lib.concatStringsSep " " values} }")
       ]
     else if lib.isList x then
       lib.pipe x [
         (lib.map nixCode)
-        (values: ''[ ${lib.concatStringsSep " " values} ]'')
+        (values: "[ ${lib.concatStringsSep " " values} ]")
       ]
     else if x == true then
       "true"

modules/write-flake.nix

@@ -7,7 +7,7 @@
   inputs = {
     flake-file.url = "github:vic/flake-file";
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     systems.url = "github:nix-systems/default";
   };
 

templates/default/flake.nix

@@ -10,7 +10,7 @@
   flake-file.inputs = {
     flake-file.url = "github:vic/flake-file";
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     systems.url = "github:nix-systems/default";
   };
 

templates/default/modules/default.nix

@@ -11,7 +11,7 @@
       url = "github:hercules-ci/flake-parts";
     };
     import-tree.url = "github:vic/import-tree";
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     nixpkgs-lib.follows = "nixpkgs";
     systems.url = "github:nix-systems/default";
   };

templates/dendritic/flake.nix

@@ -12,7 +12,7 @@
   inputs = {
     flake-file.url = "github:vic/flake-file";
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
     systems.url = "github:nix-systems/default";
     treefmt-nix.url = "github:numtide/treefmt-nix";
   };

templates/parts/flake.nix

@@ -3,7 +3,7 @@ inputs.flake-parts.lib.mkFlake { inherit inputs; } {
   flake-file.inputs = {
     flake-file.url = "github:vic/flake-file";
     flake-parts.url = "github:hercules-ci/flake-parts";
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.xz";
   };
 
   imports = [