add attic push functionality

flake.nix

@@ -1,34 +1,47 @@
 {
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
-  outputs = {
-    nixpkgs,
-    self,
-  }: let
-    forAllSystems = fn:
-      builtins.foldl' (attrs: system: let
-        outputs = fn system;
-        outputNames = builtins.attrNames outputs;
-      in
-        builtins.foldl' (attrs: outName: let
-          existing = attrs.${outName} or {};
-          new = existing // {${system} = outputs.${outName};};
-        in
-          attrs // {${outName} = new;})
-        attrs
-        outputNames) {} ["x86_64-linux" "aarch64-linux"];
-  in
+  outputs =
+    { nixpkgs
+    , rust-overlay
+    , self
+    ,
+    }:
+    let
+      forAllSystems = fn:
+        builtins.foldl'
+          (attrs: system:
+            let
+              outputs = fn system;
+              outputNames = builtins.attrNames outputs;
+            in
+            builtins.foldl'
+              (attrs: outName:
+                let
+                  existing = attrs.${outName} or { };
+                  new = existing // { ${system} = outputs.${outName}; };
+                in
+                attrs // { ${outName} = new; })
+              attrs
+              outputNames)
+          { } [ "x86_64-linux" "aarch64-linux" ];
+    in
     {
       overlays.default = final: prev: {
-        nix-ci = final.lib.flip final.callPackage {} ({
-          rustPlatform,
-          lib,
-          makeWrapper,
-          nix-eval-jobs,
-        }: let
-          cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
-        in
+        nix-ci = final.lib.flip final.callPackage { } ({ rustPlatform
+                                                       , lib
+                                                       , makeWrapper
+                                                       , nix-eval-jobs
+                                                       ,
+                                                       }:
+          let
+            cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
+          in
           rustPlatform.buildRustPackage {
             pname = cargoToml.package.name;
             version = cargoToml.package.version;
@@ -40,7 +53,7 @@
                 ./Cargo.lock
               ];
             };
-            nativeBuildInputs = [makeWrapper];
+            nativeBuildInputs = [ makeWrapper ];
             cargoLock.lockFile = ./Cargo.lock;
             preFixup = ''
               wrapProgram "$out/bin/nix-ci" \
@@ -49,13 +62,35 @@
           });
       };
     }
-    // forAllSystems (system: let
+    // forAllSystems (system:
+    let
       pkgs = import nixpkgs {
         inherit system;
-        overlays = [self.overlays.default];
+        overlays = [
+          self.overlays.default
+          rust-overlay.overlays.default
+
+
+          (final: prev: {
+            inherit (prev.lixPackageSets.stable)
+              nixpkgs-review
+              nix-eval-jobs
+              nix-fast-build
+              colmena;
+          })
+        ];
+      };
+      rust = pkgs.rust-bin.stable.latest.default.override {
+        extensions = [
+          "rust-src" # for rust-analyzer
+          "rust-analyzer"
+        ];
+      };
+    in
+    {
+      devShells.default = pkgs.mkShell {
+        nativeBuildInputs = [ pkgs.nix-eval-jobs rust pkgs.attic-client ];
       };
-    in {
-      devShells.default = import ./shell.nix {inherit pkgs;};
       packages = {
         default = pkgs.nix-ci;
         nix-ci = pkgs.nix-ci;