Add nixgen to all machines

Reviewed-by: Aleix Boné <abonerib@bsc.es>

m/common/base/env.nix

@@ -5,8 +5,8 @@
     vim wget git htop tmux pciutils tcpdump ripgrep nix-index nixos-option
     nix-diff ipmitool freeipmi ethtool lm_sensors cmake gnumake file tree
     ncdu config.boot.kernelPackages.perf ldns pv
-    # From bsckgs overlay
-    osumb
+    # From jungle overlay
+    osumb nixgen
   ];
 
   programs.direnv.enable = true;

overlay.nix

@@ -37,6 +37,7 @@ let
     nanos6 = callPackage ./pkgs/nanos6/default.nix { };
     nanos6Debug = final.nanos6.override { enableDebug = true; };
     nixtools = callPackage ./pkgs/nixtools/default.nix { };
+    nixgen = callPackage ./pkgs/nixgen/default.nix { };
     # Broken because of pkgsStatic.libcap
     # See: https://github.com/NixOS/nixpkgs/pull/268791
     #nix-wrap = callPackage ./pkgs/nix-wrap/default.nix { };

pkgs/llvm-ompss2/clang.nix

@@ -16,19 +16,19 @@
 , useGit ? false
 , gitUrl ? "ssh://git@bscpm04.bsc.es/llvm-ompss/llvm-mono.git"
 , gitBranch ? "master"
-, gitCommit ? "880e2341c56bad1dc14e8c369fb3356bec19018e"
+, gitCommit ? "872ba63f86edaefc9787984ef3fae9f2f94e0124" # github-release-2025.11
 }:
 
 let
   stdenv = llvmPackages_latest.stdenv;
 
   release = rec {
-    version = "2025.06";
+    version = "2025.11";
     src = fetchFromGitHub {
       owner = "bsc-pm";
       repo = "llvm";
       rev = "refs/tags/github-release-${version}";
-      hash = "sha256-ww9PpRmtz/M9IyLiZ8rAehx2UW4VpQt+svf4XfKBzKo=";
+      hash = "sha256-UgwMTUkM9Z87dDH205swZFBeFhrcbLAxginViG40pBM=";
     };
   };
 

pkgs/nixgen/default.nix

@@ -0,0 +1,22 @@
+{
+  stdenv
+, lib
+}:
+
+stdenv.mkDerivation {
+  pname = "nixgen";
+  version = "0.0.1";
+  src = ./nixgen;
+  dontUnpack = true;
+  phases = [ "installPhase" ];
+  installPhase = ''
+    mkdir -p $out/bin
+    cp -a $src $out/bin/nixgen
+  '';
+  meta = {
+    description = "Quickly generate flake.nix from command line";
+    maintainers = with lib.maintainers.bsc; [ rarias ];
+    platforms = lib.platforms.linux;
+    license = lib.licenses.gpl3Plus;
+  };
+}

pkgs/nixgen/nixgen

@@ -0,0 +1,97 @@
+#!/bin/sh
+#
+# Copyright (c) 2025, Barcelona Supercomputing Center (BSC)
+# SPDX-License-Identifier: GPL-3.0+
+# Author: Rodrigo Arias Mallo <rodrigo.arias@bsc.es>
+
+function usage() {
+  echo "USAGE: nixgen [-f] [package [...]] [-b package [...]]" >&2
+  echo "  Generates a flake.nix file with the given packages." >&2
+  echo "  After flake.nix is created, use 'nix develop' to enter the shell." >&2
+  echo "OPTIONS" >&2
+  echo "  -f               Overwrite existing flake.nix (default: no)." >&2
+  echo "  packages...      Add these packages to the shell." >&2
+  echo "  -b packages...   Add the dependencies needed to build these packages." >&2
+  echo "EXAMPLE" >&2
+  echo "  $ nixgen ovni bigotes -b nosv tampi" >&2
+  echo "  Adds the packages ovni and bigotes as well as all required dependencies" >&2
+  echo "  to build nosv and tampi." >&2
+  echo "AUTHOR" >&2
+  echo "  Rodrigo Arias Mallo <rodrigo.arias@bsc.es>" >&2
+  exit 1
+}
+
+mode=package
+packages=
+inputsFrom=
+force=
+
+if [[ $# -eq 0 ]]; then
+  usage
+fi
+
+while [[ $# -gt 0 ]]; do
+    case $1 in -b)
+      mode=build
+      shift
+      ;;
+    -f)
+      force=1
+      shift
+      ;;
+    -h)
+      usage
+      ;;
+    -*|--*)
+      echo "error: unknown option $1" >&2
+      exit 1
+      ;;
+    *)
+      if [ "$mode" == "package" ]; then
+        packages+="${packages:+ }$1"
+      else
+        inputsFrom+="${inputsFrom:+ }$1"
+      fi
+      shift
+      ;;
+  esac
+done
+
+if [ ! "$force" -a -e flake.nix ]; then
+  echo "error: flake.nix exists, force overwrite with -f" >&2
+  exit 1
+fi
+
+cat > flake.nix <<EOF
+{
+  inputs.jungle.url = "git+https://jungle.bsc.es/git/rarias/jungle";
+  outputs = { self, jungle }:
+  let
+    nixpkgs = jungle.inputs.nixpkgs;
+    customOverlay = (final: prev: {
+      # Example overlay, for now empty
+    });
+    pkgs = import nixpkgs {
+      system = "x86_64-linux";
+      overlays = [
+        # Apply jungle overlay to get our BSC custom packages
+        jungle.outputs.bscOverlay
+        # And on top apply our local changes to customize for cluster
+        customOverlay
+      ];
+    };
+  in {
+    devShells.x86_64-linux.default = pkgs.mkShell {
+      pname = "devshell";
+      # Include these packages in the shell
+      packages = with pkgs; [
+        $packages
+      ];
+      # The dependencies needed to build these packages will be also included
+      inputsFrom = with pkgs; [
+        $inputsFrom
+      ];
+    };
+  };
+}
+EOF

pkgs/nodes/default.nix

@@ -14,19 +14,19 @@
 , useGit ? false
 , gitUrl ? "ssh://git@gitlab-internal.bsc.es/nos-v/nodes.git"
 , gitBranch ? "master"
-, gitCommit ? "6002ec9ae6eb876d962cc34366952a3b26599ba6"
+, gitCommit ? "511489e71504a44381e0930562e7ac80ac69a848" # version-1.4
 }:
 
 with lib;
 
 let
   release = rec {
-    version = "1.3";
+    version = "1.4";
     src = fetchFromGitHub {
       owner = "bsc-pm";
       repo = "nodes";
       rev = "version-${version}";
-      hash = "sha256-cFb9pxcjtkMmH0CsGgUO9LTdXDNh7MCqicgGWawLrsU=";
+      hash = "sha256-+lR/R0l3fGZO3XG7whMorFW2y2YZ0ZFnLeOHyQYrAsQ=";
     };
   };
 

pkgs/nosv/default.nix

@@ -13,19 +13,19 @@
 , useGit ? false
 , gitUrl ? "git@gitlab-internal.bsc.es:nos-v/nos-v.git"
 , gitBranch ? "master"
-, gitCommit ? "9f47063873c3aa9d6a47482a82c5000a8c813dd8"
+, gitCommit ? "1108e4786b58e0feb9a16fa093010b763eb2f8e8" # version 4.0.0
 }:
 
 with lib;
 
 let
   release = rec {
-    version = "3.2.0";
+    version = "4.0.0";
     src = fetchFromGitHub {
       owner = "bsc-pm";
       repo = "nos-v";
       rev = "${version}";
-      hash = "sha256-yaz92426EM8trdkBJlISmAoG9KJCDTvoAW/HKrasvOw=";
+      hash = "sha256-llaq73bd/YxLVKNlMebnUHKa4z3sdcsuDUoVwUxNuw8=";
     };
   };
 

pkgs/ovni/default.nix

@@ -7,7 +7,7 @@
 , useGit ? false
 , gitBranch ? "master"
 , gitUrl ? "ssh://git@bscpm04.bsc.es/rarias/ovni.git"
-, gitCommit ? "e4f62382076f0cf0b1d08175cf57cc0bc51abc61"
+, gitCommit ? "06432668f346c8bdc1006fabc23e94ccb81b0d8b" # version 1.13.0
 , enableDebug ? false
 # Only enable MPI if the build is native (fails on cross-compilation)
 , useMpi ? (stdenv.buildPlatform.canExecute stdenv.hostPlatform)
@@ -15,13 +15,13 @@
 
 let
   release = rec {
-    version = "1.12.0";
+    version = "1.13.0";
     src = fetchFromGitHub {
       owner = "bsc-pm";
       repo = "ovni";
       rev = "${version}";
-      hash = "sha256-H04JvsVKrdqr3ON7JhU0g17jjlg/jzQ7eTfx9vUNd3E=";
-    } // { shortRev = "a73afcf"; };
+      hash = "sha256-0l2ryIyWNiZqeYdVlnj/WnQGS3xFCY4ICG8JedX424w=";
+    } // { shortRev = "0643266"; };
   };
 
   git = rec {