Nix 2.28 + format

default.nix

@@ -1,3 +1,3 @@
-(import (fetchTarball https://github.com/edolstra/flake-compat/archive/master.tar.gz) {
+(import (fetchTarball "https://github.com/edolstra/flake-compat/archive/master.tar.gz") {
   src = builtins.fetchGit ./.;
 }).defaultNix

flake.nix

@@ -3,53 +3,57 @@
 
   inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11-small";
 
-  outputs = { self, nixpkgs }:
+  outputs =
+    { self, nixpkgs }:
     {
       overlays.default = final: prev: {
-        nixos-channel-native-programs = with final; stdenv.mkDerivation {
+        nixos-channel-native-programs = final.stdenv.mkDerivation {
           name = "nixos-channel-native-programs";
-          buildInputs = [
-              nix
-              pkg-config
-              boehmgc
-              nlohmann_json
-              boost
-              sqlite
+
+          strictDeps = true;
+
+          nativeBuildInputs = with final.buildPackages; [
+            pkg-config
           ];
 
-          buildCommand = let
-            nixHasSignalsHh = nixpkgs.lib.strings.versionAtLeast nix.version "2.19";
-          in ''
+          buildInputs = with final; [
+            nixVersions.nix_2_28
+            nlohmann_json
+            boost
+          ];
+
+          buildCommand = ''
             mkdir -p $out/bin
 
-            g++ -Os -g ${./index-debuginfo.cc} -Wall -std=c++14 -o $out/bin/index-debuginfo -I . \
-              $(pkg-config --cflags nix-main) \
-              $(pkg-config --libs nix-main) \
-              $(pkg-config --libs nix-store) \
-              -lsqlite3 \
-              ${nixpkgs.lib.optionalString nixHasSignalsHh "-DHAS_SIGNALS_HH"}
+            $CXX \
+              -Os -g -Wall \
+              -std=c++14 \
+              $(pkg-config --libs --cflags nix-store) \
+              $(pkg-config --libs --cflags nix-main) \
+              -I . \
+              ${./index-debuginfo.cc} \
+              -o $out/bin/index-debuginfo
           '';
         };
 
-        nixos-channel-scripts = with final; stdenv.mkDerivation {
+        nixos-channel-scripts = final.stdenv.mkDerivation {
           name = "nixos-channel-scripts";
 
-          buildInputs = with perlPackages;
-            [ nix
-              sqlite
-              makeWrapper
-              perl
-              FileSlurp
-              LWP
-              LWPProtocolHttps
-              ListMoreUtils
-              DBDSQLite
-              NetAmazonS3
-              brotli
-              jq
-              nixos-channel-native-programs
-              nix-index
-            ];
+          strictDeps = true;
+
+          nativeBuildInputs = with final.buildPackages; [
+            makeWrapper
+          ];
+
+          buildInputs = with final.perlPackages; [
+            final.perl
+            FileSlurp
+            LWP
+            LWPProtocolHttps
+            ListMoreUtils
+            DBDSQLite
+            NetAmazonS3
+          ];
 
           buildCommand = ''
             mkdir -p $out/bin
@@ -58,19 +62,35 @@
             wrapProgram $out/bin/mirror-nixos-branch \
               --set PERL5LIB $PERL5LIB \
               --set XZ_OPT "-T0" \
-              --prefix PATH : ${lib.makeBinPath [ wget git nix gnutar xz rsync openssh nix-index nixos-channel-native-programs ]}
+              --prefix PATH : ${
+                final.lib.makeBinPath (
+                  with final;
+                  [
+                    wget
+                    git
+                    nix
+                    gnutar
+                    xz
+                    rsync
+                    openssh
+                    nix-index
+                    nixos-channel-native-programs
+                  ]
+                )
+              }
 
             patchShebangs $out/bin
           '';
         };
 
       };
 
-      packages.default.x86_64-linux = (import nixpkgs {
-        system = "x86_64-linux";
-        overlays = [ self.overlays.default ];
-      }).nixos-channel-scripts;
+      packages.x86_64-linux.default =
+        (import nixpkgs {
+          system = "x86_64-linux";
+          overlays = [ self.overlays.default ];
+        }).nixos-channel-scripts;
 
-      checks.x86_64-linux.default = self.packages.default.x86_64-linux;
+      checks.x86_64-linux.default = self.packages.x86_64-linux.default;
     };
 }

index-debuginfo.cc

@@ -1,19 +1,15 @@
-#include <nix/config.h>
-
 #include <regex>
 
-#include "shared.hh"
-#include "sqlite.hh"
-#include "s3-binary-cache-store.hh"
-#include "thread-pool.hh"
-#include "nar-info.hh"
+#include <nlohmann/json.hpp>
+
+#include <nix/util/signals.hh>
+#include <nix/util/thread-pool.hh>
 
-// https://github.com/NixOS/nix/commit/ac89bb064aeea85a62b82a6daf0ecca7190a28b7
-#ifdef HAS_SIGNALS_HH
-#include "signals.hh"
-#endif
+#include <nix/store/nar-info.hh>
+#include <nix/store/s3-binary-cache-store.hh>
+#include <nix/store/sqlite.hh>
 
-#include <nlohmann/json.hpp>
+#include <nix/main/shared.hh>
 
 // cache.nixos.org/debuginfo/<build-id>
 //  => redirect to NAR

shell.nix

@@ -1,3 +1,3 @@
-(import (fetchTarball https://github.com/edolstra/flake-compat/archive/master.tar.gz) {
+(import (fetchTarball "https://github.com/edolstra/flake-compat/archive/master.tar.gz") {
   src = builtins.fetchGit ./.;
 }).shellNix