instruction for install with nix-user-chroot

README.md

@@ -3,15 +3,40 @@
 This repository contains the material for the practical session of course [RM4ES](https://moodle.univ-tlse3.fr/course/view.php?id=4996) given in the Spring semester of 2024.
 
 ## Install
+Ensure that you are in your home directory (run `cd`).
+
 Clone this repository:
 ```
 git clone git@gitlab.irit.fr:sepia-pub/mael/RM4ES-practicals.git
-cd RM4ES-practicals
 ```
 
-TODO: how to install Nix on lab computers
+Install [Nix]:
+
+```bash
+# download and install nix-user-chroot, a hack to install nix without root privilege
+curl -L  https://github.com/nix-community/nix-user-chroot/releases/download/1.2.2/nix-user-chroot-bin-1.2.2-x86_64-unknown-linux-musl --output nix-user-chroot
+# give exec rights
+chmod u+x nix-user-chroot
+# download and install nix
+./nix-user-chroot ~/.nix bash -c "curl -L https://nixos.org/nix/install | bash"
+# enable cachix
+mkdir -p ~/.config/nix && cp ~/RM4ES-practicals/util/nix.conf ~/.config/nix
+# add a line to your bashrc
+echo 'source ~/.nix-profile/etc/profile.d/nix.sh' >> ~/.bashrc
+```
+
+Now, each time you want to test your schedulers, you need to run, from the repository `RM4ES-practicals`:
+
+```bash
+~/nix-user-chroot ~/.nix bash
+nix-shell -A expe
+```
+
+Or, as a one-liner:
+```bash
+~/nix-user-chroot ~/.nix bash -c "nix-shell -A expe"
+```
 
-TODO: how to install poetry on lab computers
 
 ## Status rn
 We can start a small expe!

default.nix

@@ -9,7 +9,6 @@
 
 let
   jobs = rec {
-
     evalys = kapack.evalys.overrideAttrs (attr: rec {
       name = "evalys";
       version = "d4d47bd2f4d076730b05f1345b1bf9032cd28753";
@@ -20,77 +19,15 @@ let
       };
     });
 
-    
-    # small shell to dev and test schedulers
-    dev = pkgs.mkShell rec {
-      packages = [
-        # kapack.pybatsim-core
-        pkgs.stdenv.cc.cc.lib
-        # python3Packages.poetry
-        python3
-        (pkgs.poetry.override { python3 = python3; })
-        # (python3.withPackages 
-        #   (ps: with ps; with python3Packages; [
-        #     poetry-core
-        #   ])
-        # )
-      ];
-      shellHook = ''
-        cd sched
-        poetry install
-        export VIRTUAL_ENV_DISABLE_PROMPT=1
-        poetry shell
-      '';
-
-      LD_LIBRARY_PATH="${pkgs.stdenv.cc.cc.lib}/lib";
-    };
-
     expe = pkgs.mkShell rec {
       buildInputs = [
-        kapack.batsim
+        kapack.batsim-410
+        kapack.pybatsim-320
         python3Packages.matplotlib
         evalys
       ];
-      QT_QPA_PLATFORM_PLUGIN_PATH = with pkgs.libsForQt5.qt5; "${qtbase.bin}/lib/qt-${qtbase.version}/plugins/platforms";      
+      QT_QPA_PLATFORM_PLUGIN_PATH=  with pkgs.libsForQt5.qt5; "${qtbase.bin}/lib/qt-${qtbase.version}/plugins/platforms";      
     };
-
-    test = pkgs.mkShell rec {
-      buildInputs = [
-        # pkgs.stdenv.cc.cc.lib
-        python3Packages.poetry-core
-        pkgs.poetry
-      ];
-
-      # LD_LIBRARY_PATH="${pkgs.stdenv.cc.cc.lib}/lib";
-    };
-    # lib = pkgs.lib;
-    # pybatsim-example = python3Packages.buildPythonPackage rec {
-    #   pname = "pybatsim-example";
-    #   version = "local";
-    #   format = "pyproject";
-
-    #   src = lib.sourceByRegex ./sched [
-    #     "^pyproject\.toml$"
-    #     "^poetry\.lock$"
-    #     "^.*\.py$"
-    #   ];
-    #   buildInputs = [
-    #     poetry
-    #   ];
-    #   propagatedBuildInputs = [
-    #     pybatsim-core
-    #   ];
-    # };
-
-    # # example shell that enables to run the example scheduler (run `pybatsim rejector` in the shell)
-    # example-shell = pkgs.mkShell rec {
-    #   buildInputs = [
-    #     pybatsim-example
-    #   ];
-    # };
-
-
-
   };
 
 in

util/nix.conf

+sandbox = true
+experimental-features = nix-command flakes
+cores = 4
+max-jobs = auto
+substituters = https://cache.nixos.org https://capack.cachix.org https://batsim.cachix.org
+trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= batsim.cachix.org-1:IQ/4c8P/yzhxQwp6t58LatLcvHz0qMolEHJQz9w9pxc= capack.cachix.org-1:38D+QFk3JXvMYJuhSaZ+3Nm/Qh+bZJdCrdu4pkIh5BU=
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