Merge pull request #1893 from nix-community/test-nixpkgs-commit

Pin nixpkgs to working commit

Author: Nebucatnetzer

flake.nix

@@ -3,7 +3,8 @@
 
   inputs = {
     flake-utils.url = "github:numtide/flake-utils";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable-small";
+    # Last working commit from nixos-small-unstable
+    nixpkgs.url = "github:NixOS/nixpkgs?rev=75e28c029ef2605f9841e0baa335d70065fe7ae2";
 
     treefmt-nix.url = "github:numtide/treefmt-nix";
     treefmt-nix.inputs.nixpkgs.follows = "nixpkgs";
@@ -17,13 +18,13 @@
   };
 
   outputs =
-    { self
-    , nixpkgs
-    , flake-utils
-    , nix-github-actions
-    , treefmt-nix
-    , systems
-    ,
+    {
+      self,
+      nixpkgs,
+      flake-utils,
+      nix-github-actions,
+      treefmt-nix,
+      systems,
     }:
     let
       eachSystem = f: nixpkgs.lib.genAttrs (import systems) (system: f nixpkgs.legacyPackages.${system});
@@ -35,7 +36,8 @@
 
       githubActions =
         let
-          mkPkgs = system:
+          mkPkgs =
+            system:
             import nixpkgs {
               config = {
                 allowAliases = false;
@@ -69,10 +71,11 @@
               in
               {
                 # Aggregate all tests into one derivation so that only one GHA runner is scheduled for all darwin jobs
-                aggregate = pkgs.runCommand "darwin-aggregate"
-                  {
-                    env.TEST_INPUTS = lib.concatStringsSep " " (lib.attrValues (lib.filterAttrs (_: v: lib.isDerivation v) tests));
-                  } "touch $out";
+                aggregate = pkgs.runCommand "darwin-aggregate" {
+                  env.TEST_INPUTS = lib.concatStringsSep " " (
+                    lib.attrValues (lib.filterAttrs (_: v: lib.isDerivation v) tests)
+                  );
+                } "touch $out";
               };
             aarch64-darwin =
               let
@@ -82,11 +85,11 @@
               in
               {
                 # Aggregate all tests into one derivation so that only one GHA runner is scheduled for all darwin jobs
-                aggregate =
-                  pkgs.runCommand "darwin-aggregate"
-                    {
-                      env.TEST_INPUTS = lib.concatStringsSep " " (lib.attrValues (lib.filterAttrs (_: v: lib.isDerivation v) tests));
-                    } "touch $out";
+                aggregate = pkgs.runCommand "darwin-aggregate" {
+                  env.TEST_INPUTS = lib.concatStringsSep " " (
+                    lib.attrValues (lib.filterAttrs (_: v: lib.isDerivation v) tests)
+                  );
+                } "touch $out";
               };
           };
         };
@@ -99,48 +102,50 @@
         default = self.templates.app;
       };
     }
-    // (flake-utils.lib.eachDefaultSystem (system:
-    let
-      pkgs = import nixpkgs {
-        inherit system;
-        config.allowAliases = false;
-      };
+    // (flake-utils.lib.eachDefaultSystem (
+      system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowAliases = false;
+        };
 
-      poetry2nix = import ./default.nix { inherit pkgs; };
-      p2nix-tools = pkgs.callPackage ./tools { inherit poetry2nix; };
-    in
-    rec {
-      formatter = treefmtEval.${system}.config.build.wrapper;
+        poetry2nix = import ./default.nix { inherit pkgs; };
+        p2nix-tools = pkgs.callPackage ./tools { inherit poetry2nix; };
+      in
+      rec {
+        formatter = treefmtEval.${system}.config.build.wrapper;
 
-      packages = {
-        poetry2nix = poetry2nix.cli;
-        default = poetry2nix.cli;
-      };
+        packages = {
+          poetry2nix = poetry2nix.cli;
+          default = poetry2nix.cli;
+        };
 
-      devShells = {
-        default = pkgs.mkShell {
-          nativeBuildInputs = with pkgs; [
-            p2nix-tools.env
-            p2nix-tools.flamegraph
-            nixpkgs-fmt
-            poetry
-            niv
-            jq
-            nix-prefetch-git
-            nix-eval-jobs
-            nix-build-uncached
-          ];
+        devShells = {
+          default = pkgs.mkShell {
+            nativeBuildInputs = with pkgs; [
+              p2nix-tools.env
+              p2nix-tools.flamegraph
+              nixpkgs-fmt
+              poetry
+              niv
+              jq
+              nix-prefetch-git
+              nix-eval-jobs
+              nix-build-uncached
+            ];
+          };
         };
-      };
 
-      apps = {
-        poetry = {
-          # https://wiki.nixos.org/wiki/Flakes
-          type = "app";
-          program = "${pkgs.poetry}/bin/poetry";
+        apps = {
+          poetry = {
+            # https://wiki.nixos.org/wiki/Flakes
+            type = "app";
+            program = "${pkgs.poetry}/bin/poetry";
+          };
+          poetry2nix = flake-utils.lib.mkApp { drv = packages.poetry2nix; };
+          default = apps.poetry2nix;
         };
-        poetry2nix = flake-utils.lib.mkApp { drv = packages.poetry2nix; };
-        default = apps.poetry2nix;
-      };
-    }));
+      }
+    ));
 }

templates/app/flake.nix

@@ -3,7 +3,8 @@
 
   inputs = {
     flake-utils.url = "github:numtide/flake-utils";
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable-small";
+    # Last working commit from nixos-small-unstable
+    nixpkgs.url = "github:NixOS/nixpkgs?rev=75e28c029ef2605f9841e0baa335d70065fe7ae2";
     poetry2nix = {
       url = "github:nix-community/poetry2nix";
       inputs.nixpkgs.follows = "nixpkgs";