use comma and pregenerated nix-index

common/shell.nix

@@ -1,34 +1,24 @@
-{ config, pkgs, ... }:
+{ config, lib, pkgs, ... }:
 
 # Improvements to the default shell
-# - use nix-locate for command-not-found
+# - use nix-index for command-not-found
 # - disable fish's annoying greeting message
 # - add some handy shell commands
 
-let
+{
-  nix-locate = config.inputs.nix-locate.packages.${config.currentSystem}.default;
+  environment.systemPackages = with pkgs; [
-in {
+    comma
-  programs.command-not-found.enable = false;
-
-  environment.systemPackages = [
-    nix-locate
   ];
 
+  # nix-index
+  programs.nix-index.enable = true;
+  programs.nix-index.enableFishIntegration = true;
+  programs.command-not-found.enable = false;
+
   programs.fish = {
     enable = true;
 
-    shellInit = let
+    shellInit = ''
-      wrapper = pkgs.writeScript "command-not-found" ''
-        #!${pkgs.bash}/bin/bash
-        source ${nix-locate}/etc/profile.d/command-not-found.sh
-        command_not_found_handle "$@"
-      '';
-    in ''
-      # use nix-locate for command-not-found functionality
-      function __fish_command_not_found_handler --on-event fish_command_not_found
-          ${wrapper} $argv
-      end
-
       # disable annoying fish shell greeting
       set fish_greeting
     '';
@@ -43,4 +33,18 @@ in {
     io_rand_read = "nix run nixpkgs#fio -- --name TEST --eta-newline=5s --filename=temp.file --rw=randread --size=2g --io_size=10g --blocksize=4k --ioengine=libaio --fsync=1 --iodepth=1 --direct=1 --numjobs=32 --runtime=60 --group_reporting; rm temp.file";
     io_rand_write = "nix run nixpkgs#fio -- --name TEST --eta-newline=5s --filename=temp.file --rw=randrw --size=2g --io_size=10g --blocksize=4k --ioengine=libaio --fsync=1 --iodepth=1 --direct=1 --numjobs=1 --runtime=60 --group_reporting; rm temp.file";
   };
+
+  nixpkgs.overlays = [
+    (final: prev: {
+      # comma uses the "nix-index" package built into nixpkgs by default.
+      # That package doesn't use the prebuilt nix-index database so it needs to be changed.
+      comma = prev.comma.overrideAttrs (old: {
+        postInstall = ''
+          wrapProgram $out/bin/comma \
+            --prefix PATH : ${lib.makeBinPath [ prev.fzy config.programs.nix-index.package ]}
+          ln -s $out/bin/comma $out/bin/,
+        '';
+      });
+    })
+  ];
 }

flake.lock

@@ -105,6 +105,31 @@
         "type": "github"
       }
     },
+    "deploy-rs": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "utils": [
+          "simple-nixos-mailserver",
+          "utils"
+        ]
+      },
+      "locked": {
+        "lastModified": 1674127017,
+        "narHash": "sha256-QO1xF7stu5ZMDLbHN30LFolMAwY6TVlzYvQoUs1RD68=",
+        "owner": "serokell",
+        "repo": "deploy-rs",
+        "rev": "8c9ea9605eed20528bf60fae35a2b613b901fd77",
+        "type": "github"
+      },
+      "original": {
+        "owner": "serokell",
+        "repo": "deploy-rs",
+        "type": "github"
+      }
+    },
     "flake-compat": {
       "flake": false,
       "locked": {
@@ -136,39 +161,38 @@
         "type": "github"
       }
     },
-    "nix-locate": {
+    "nix-index-database": {
       "inputs": {
-        "flake-compat": "flake-compat",
         "nixpkgs": [
           "nixpkgs"
         ]
       },
       "locked": {
-        "lastModified": 1673969751,
+        "lastModified": 1677382901,
-        "narHash": "sha256-U6aYz3lqZ4NVEGEWiti1i0FyqEo4bUjnTAnA73DPnNU=",
+        "narHash": "sha256-2idFWlTVG+qUZkU2/W50amGSIxmN56igIkMAXKbv4S4=",
-        "owner": "bennofs",
+        "owner": "Mic92",
-        "repo": "nix-index",
+        "repo": "nix-index-database",
-        "rev": "5f98881b1ed27ab6656e6d71b534f88430f6823a",
+        "rev": "4306fa7c12e098360439faac1a2e6b8e509ec97c",
         "type": "github"
       },
       "original": {
-        "owner": "bennofs",
+        "owner": "Mic92",
-        "repo": "nix-index",
+        "repo": "nix-index-database",
         "type": "github"
       }
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1672580127,
+        "lastModified": 1677823547,
-        "narHash": "sha256-3lW3xZslREhJogoOkjeZtlBtvFMyxHku7I/9IVehhT8=",
+        "narHash": "sha256-xD2qco8Pw8HAXgjf9OSi2H2N20WaTrtvgcl21525kVE=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0874168639713f547c05947c76124f78441ea46c",
+        "rev": "78c4d33c16092e535bc4ba1284ba49e3e138483a",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-22.05",
+        "ref": "master",
         "repo": "nixpkgs",
         "type": "github"
       }
@@ -188,22 +212,6 @@
         "type": "indirect"
       }
     },
-    "nixpkgs-unstable": {
-      "locked": {
-        "lastModified": 1675835843,
-        "narHash": "sha256-y1dSCQPcof4CWzRYRqDj4qZzbBl+raVPAko5Prdil28=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "32f914af34f126f54b45e482fb2da4ae78f3095f",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "master",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "radio": {
       "inputs": {
         "flake-utils": [
@@ -250,10 +258,10 @@
         "agenix": "agenix",
         "archivebox": "archivebox",
         "dailybuild_modules": "dailybuild_modules",
+        "deploy-rs": "deploy-rs",
         "flake-utils": "flake-utils",
-        "nix-locate": "nix-locate",
+        "nix-index-database": "nix-index-database",
         "nixpkgs": "nixpkgs",
-        "nixpkgs-unstable": "nixpkgs-unstable",
         "radio": "radio",
         "radio-web": "radio-web",
         "simple-nixos-mailserver": "simple-nixos-mailserver"

flake.nix

@@ -1,13 +1,9 @@
 {
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/nixos-22.05";
+    nixpkgs.url = "github:NixOS/nixpkgs/master";
-    nixpkgs-unstable.url = "github:NixOS/nixpkgs/master";
 
     flake-utils.url = "github:numtide/flake-utils";
 
-    nix-locate.url = "github:bennofs/nix-index";
-    nix-locate.inputs.nixpkgs.follows = "nixpkgs";
-
     # mail server
     simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-22.05";
     simple-nixos-mailserver.inputs.nixpkgs.follows = "nixpkgs";
@@ -37,21 +33,26 @@
     deploy-rs.url = "github:serokell/deploy-rs";
     deploy-rs.inputs.nixpkgs.follows = "nixpkgs";
     deploy-rs.inputs.utils.follows = "simple-nixos-mailserver/utils";
+
+    # prebuilt nix-index database
+    nix-index-database.url = "github:Mic92/nix-index-database";
+    nix-index-database.inputs.nixpkgs.follows = "nixpkgs";
   };
 
-  outputs = { self, nixpkgs, nixpkgs-unstable, ... }@inputs: {
+  outputs = { self, nixpkgs, ... }@inputs: {
 
     nixosConfigurations =
     let
-      modules = system: [
+      modules = system: with inputs; [
         ./common
-        inputs.simple-nixos-mailserver.nixosModule
+        simple-nixos-mailserver.nixosModule
-        inputs.agenix.nixosModules.default
+        agenix.nixosModules.default
-        inputs.dailybuild_modules.nixosModule
+        dailybuild_modules.nixosModule
-        inputs.archivebox.nixosModule
+        archivebox.nixosModule
+        nix-index-database.nixosModules.nix-index
         ({ lib, ... }: {
           config.environment.systemPackages = [
-            inputs.agenix.packages.${system}.agenix
+            agenix.packages.${system}.agenix
           ];
 
           # because nixos specialArgs doesn't work for containers... need to pass in inputs a different way
@@ -73,22 +74,22 @@
         };
     in
     {
-      "ray" = mkSystem "x86_64-linux" nixpkgs-unstable ./machines/ray/configuration.nix;
+      "ray" = mkSystem "x86_64-linux" nixpkgs ./machines/ray/configuration.nix;
-      "nat" = mkSystem "aarch64-linux" nixpkgs ./machines/nat/configuration.nix;
+      # "nat" = mkSystem "aarch64-linux" nixpkgs ./machines/nat/configuration.nix;
       "liza" = mkSystem "x86_64-linux" nixpkgs ./machines/liza/configuration.nix;
       "ponyo" = mkSystem "x86_64-linux" nixpkgs ./machines/ponyo/configuration.nix;
-      "router" = mkSystem "x86_64-linux" nixpkgs-unstable ./machines/router/configuration.nix;
+      "router" = mkSystem "x86_64-linux" nixpkgs ./machines/router/configuration.nix;
-      "s0" = mkSystem "x86_64-linux" nixpkgs-unstable ./machines/storage/s0/configuration.nix;
+      "s0" = mkSystem "x86_64-linux" nixpkgs ./machines/storage/s0/configuration.nix;
     };
 
     packages = let
       mkKexec = system:
-        (nixpkgs-unstable.lib.nixosSystem {
+        (nixpkgs.lib.nixosSystem {
           inherit system;
           modules = [ ./machines/ephemeral/kexec.nix ];
         }).config.system.build.kexec_tarball;
       mkIso = system:
-        (nixpkgs-unstable.lib.nixosSystem {
+        (nixpkgs.lib.nixosSystem {
           inherit system;
           modules = [ ./machines/ephemeral/iso.nix ];
         }).config.system.build.isoImage;