switch to xonsh and add virtual machine configurations

.gitignore

@@ -1,2 +1,4 @@
 hosts/configuration.nix
 __pycache__
+*.qcow2
+result

config/xonsh/aliases.py

@@ -0,0 +1,94 @@
+from pathlib import Path
+import subprocess
+
+def run(cmd: list[str]) -> subprocess.CompletedProcess:
+    print(f"* {' '.join(cmd)}")
+    return subprocess.run(cmd, check=True)
+
+@aliases.register
+@aliases.return_command
+def _sudo(args):
+    return ["sudo", "--", *aliases.eval_alias(args)]
+
+@aliases.register
+def _vm(args):
+    if not args:
+        args = ["nixpkgs"]
+    vm_name = args.pop(0)
+    build_vm_args = args
+    if vm_name == "nixpkgs":
+        build_vm_args.extend(["-I", "nixpkgs=/bulk/home/cswimr/Projects/nixpkgs"])
+    vm_path = Path(f"/etc/nixos/hosts/virtual-machines/{vm_name}")
+    if vm_path.exists():
+        print(f"Building virtual machine {vm_name}")
+        run(["nixos-rebuild", "build-vm", "-I", "nixos-config=./default.nix", *build_vm_args, "--no-flake"], cwd=vm_path)
+        print(f"Running virtual vachine {vm_name}")
+        run([str(vm_path / "result" / "bin" / "run-nixos-vm")], cwd=vm_path)
+        print(f"Virtual machine {vm_name} has stopped.")
+    else:
+        raise FileNotFoundError(f"Virtual machine {vm_name} does not exist.")
+
+
+@aliases.register
+@aliases.return_command
+def _edit(args):
+    if not args:
+        args = ["."]
+    if "$SSH_CONNECTION":
+        return ["$EDITOR", *args]
+    return ["$VISUAL", *args]
+
+
+alias_dictionary = {
+    "ff": "fastfetch",
+    "neofetch": "fastfetch",
+    "nf": "fastfetch",
+
+    "lg": "lazygit",
+    "lad": "lazydocker",
+
+    "clip": "wl-copy",
+    "paste": "wl-paste",
+
+    "cat": "bat",
+    "git": "hub",
+
+    "l": "eza -lhg --time-style=long-iso --icons=auto",
+    "la": "eza -lAh --time-style=long-iso --icons=auto",
+    "ll": "eza -lhg --time-style=long-iso --icons=auto",
+    "ls": "eza --time-style=long-iso --icons=auto",
+    "lsa": "eza -lah --time-style=long-iso --icons=auto",
+    "tree": "eza --tree --git-ignore --time-style=long-iso --icons=auto",
+
+    "create-devenv": "nix flake init --template github:cachix/devenv and direnv allow",
+    "dev": "nix develop --no-pure-eval",
+    "nixpkgs-update": "nix run --option extra-substituters 'https://nix-community.cachix.org/' --option extra-trusted-public-keys 'nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=' github:ryantm/nixpkgs-update --",
+    "nixrc": "edit /etc/nixos",
+
+    "upd": '''sudo nixos-generate-config --dir /etc/nixos/hosts and \
+    sudo rm /etc/nixos/hosts/configuration.nix and \
+    sudo mv /etc/nixos/hosts/hardware-configuration.nix /etc/nixos/hosts/@($HOSTNAME).nix \
+    and git -C /etc/nixos --git-dir=/etc/nixos/.git add /etc/nixos/hosts/@($HOSTNAME).nix and \
+    rm -rf ~/.config/Code/User/settings.json.bak and \
+    sudo nixos-rebuild switch --flake /etc/nixos --impure @($args)''', #TODO: Remove --impure once the Starship module is merged - see ../../nixos/shell.nix for more information
+
+    "taildrop": "tailscale file",
+
+    "forgejo-runner": "act_runner",
+    "runactions": "act_runner exec --default-actions-url=https://www.coastalcommits.com --gitea-instance=https://www.coastalcommits.com",
+
+    "e": "edit",
+    "c": "clear",
+    "s": "sudo",
+}
+
+# Create aliases for scripts with the .py extension stripped
+script_path = Path("/etc/nixos/scripts")
+if script_path.exists():
+    for script in script_path.glob("*.py"):
+        if script.name == "__init__.py":
+            continue
+        script_name = script.name.strip(".py")
+        aliases.update({script_name: [str(script)]})
+
+aliases.update(alias_dictionary)

flake.nix

@@ -54,6 +54,7 @@
             ./nixos/pkg.nix
             ./nixos/shell.nix
             ./nixos/sudo.nix
+            ./nixos/symlinks.nix
             ./nixos/tailscale.nix
 
             {

home-manager/vscode.nix

@@ -107,6 +107,7 @@
         # Misc - Language Support
         jnoortheen.nix-ide
         tamasfe.even-better-toml
+        jnoortheen.xonsh
         matthewpi.caddyfile-support
         editorconfig.editorconfig
         prisma.prisma
@@ -321,6 +322,7 @@
         ".env" = "properties";
         "*.ini" = "paradox";
         "*.kt" = "kotlin";
+        "**/xonsh/*.py" = "xonsh";
       };
       "editor.semanticHighlighting.enabled" = true;
       "[css]" = { "editor.defaultFormatter" = "vscode.css-language-features"; };
@@ -343,7 +345,7 @@
       "python.analysis.inlayHints.functionReturnTypes" = true;
       "explorer.confirmDragAndDrop" = false;
       "editor.unicodeHighlight.allowedLocales" = { ru = true; };
-      "terminal.integrated.defaultProfile.linux" = "zsh";
+      "terminal.integrated.defaultProfile.linux" = "xonsh";
       "explorer.confirmPasteNative" = false;
       "editor.renderWhitespace" = "none";
       "explorer.fileNesting.patterns" = {

hosts/virtual-machines/gnome/default.nix

@@ -0,0 +1,23 @@
+{ pkgs, lib, ... }:
+let
+  gnomeExtensions = with pkgs.gnomeExtensions; [ totp ];
+  packages = with pkgs; [ fastfetch ];
+in {
+  imports = [
+    ../template.nix
+    #../../../nixos/shell.nix
+  ];
+
+  services.xserver = {
+    enable = true;
+    displayManager.gdm.enable = true;
+    desktopManager.gnome.enable = true;
+  };
+
+  virtualisation.vmVariant.virtualisation = {
+    memorySize = 8192;
+    cores = 6;
+  };
+
+  environment.systemPackages = lib.lists.unique (packages ++ gnomeExtensions);
+}

hosts/virtual-machines/nixpkgs/default.nix

@@ -0,0 +1,7 @@
+{ pkgs, ... }: {
+  imports = [
+    ../template.nix
+    ../../../nixos/shell.nix
+  ];
+  environment.systemPackages = with pkgs; [ fastfetch ];
+}

hosts/virtual-machines/template.nix

@@ -0,0 +1,25 @@
+# Edit this configuration file to define what should be installed on
+# your system. Help is available in the configuration.nix(5) man page, on
+# https://search.nixos.org/options and in the NixOS manual (`nixos-help`).
+
+{
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "nixos";
+  networking.networkmanager.enable = true;
+
+  time.timeZone = "America/New_York";
+
+  users.users.cswimr = {
+    isNormalUser = true;
+    extraGroups = [ "wheel" ];
+    group = "cswimr";
+    initialPassword = "cswimr";
+  };
+  users.groups.cswimr = { };
+
+  services.qemuGuest.enable = true;
+
+  system.stateVersion = "24.11";
+}

nixos/pkg.nix

@@ -45,11 +45,12 @@ let
     fontforge
     packwiz
     xclip
+    starship
 
-    # for scripts
-    python312
-    python312Packages.requests
-    python312Packages.pyperclip
+    # for xonsh
+    python311
+    python311Packages.pip
+    python311Packages.python-lsp-server
   ];
   flakePackages = with inputs; [ compose2nix.packages.${system}.default ];
 in {

nixos/shell.nix

@@ -1,4 +1,9 @@
-{ pkgs, ... }: {
+{ config, pkgs, ... }: {
+  #TODO: Submit a PR to nixpkgs to add xonsh support to the Starship module
+  # After that, we can remove this import and the disabledModules line
+  disabledModules = [ "programs/starship.nix" ];
+  imports = [ /bulk/home/cswimr/Projects/nixpkgs/nixos/modules/programs/starship.nix ];
+
   # starship - a customizable prompt for any shell
   programs.starship = {
     enable = true;
@@ -57,52 +62,81 @@
       add_newline = false;
     };
   };
-  users.defaultUserShell = pkgs.fish;
-  programs.fish = {
-    enable = true;
-    shellInit = ''
-      export PATH="$PATH:$HOME/bin:$HOME/.local/bin:$HOME/go/bin"
-    '';
 
-    shellAliases = let ezaArgs = "--time-style='+%Y-%m-%d %H:%M' --icons=auto";
+  # enable bash completions
+  # even though we don't use bash as our shell, xonsh uses bash completion scripts
+  programs.bash.completion.enable = true;
+
+  users.defaultUserShell = pkgs.xonsh;
+  programs.xonsh = let bashcfg = config.programs.bash;
   in {
-      ff = "fastfetch";
-      neofetch = "fastfetch";
-      nf = "fastfetch";
+    enable = true;
+    config = ''
+      $BASH_COMPLETIONS = ('${bashcfg.completion.package}/etc/profile.d/bash_completion.sh')
+      #execx($(starship init xonsh))
+      #xontrib load cd
+      xontrib load direnv
+      xontrib load sh
+    '';
+    package = pkgs.xonsh.override {
+      extraPackages = ps: [
+        # (ps.buildPythonPackage rec {
+        #   name = "xontrib-cd";
+        #   version = "0.3.1";
 
-      lg = "lazygit";
-      lad = "lazydocker";
+        #   src = pkgs.fetchFromGitHub {
+        #     owner = "eugenesvk";
+        #     repo = name;
+        #     rev = version;
+        #     sha256 = "XxSxjyCg7PeX1v3e2KKicvAPmNeq+qVqbW4fXTwAiic=";
+        #   };
 
-      clip = "wl-copy";
-      paste = "wl-paste";
-      cat = "bat";
+        #   meta = {
+        #     homepage = "https://github.com/eugenesvk/xontrib-cd";
+        #     description =
+        #       "`cd` to any path without escaping in xonsh shell: `cd ~/[te] st`";
+        #     license = pkgs.lib.licenses.mit;
+        #     maintainers = [ "cswimr" ];
+        #   };
+        # })
+        (ps.buildPythonPackage rec {
+          name = "xonsh-direnv";
+          version = "1.6.5";
 
-      l = "eza -lhg ${ezaArgs}";
-      la = "eza -lAh ${ezaArgs}";
-      ll = "eza -lhg ${ezaArgs}";
-      ls = "eza ${ezaArgs}";
-      lsa = "eza -lah ${ezaArgs}";
-      tree = "eza --tree --git-ignore ${ezaArgs}";
-      git = "hub";
+          src = pkgs.fetchFromGitHub {
+            owner = "74th";
+            repo = name;
+            rev = version;
+            sha256 = "huBJ7WknVCk+WgZaXHlL+Y1sqsn6TYqMP29/fsUPSyU=";
+          };
 
-      create-devenv = "nix flake init --template github:cachix/devenv && direnv allow";
-      develop = "nix develop --no-pure-eval";
-      nixpkgs-update = "nix run --option extra-substituters 'https://nix-community.cachix.org/' --option extra-trusted-public-keys 'nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs=' github:ryantm/nixpkgs-update --";
-      nixrc = "$EDITOR /etc/nixos";
-      delete-vscode-settings-backup = "rm -rf ~/.config/Code/User/settings.json.bak";
-      upd =
-        "sudo nixos-generate-config --dir /etc/nixos/hosts && sudo rm /etc/nixos/hosts/configuration.nix && sudo mv /etc/nixos/hosts/hardware-configuration.nix /etc/nixos/hosts/$(hostname).nix && git -C /etc/nixos --git-dir=/etc/nixos/.git add /etc/nixos/hosts/$(hostname).nix && delete-vscode-settings-backup && sudo nixos-rebuild switch --flake /etc/nixos";
+          meta = {
+            homepage = "https://github.com/74th/xonsh-direnv";
+            description = "xonsh extension for using direnv";
+            license = pkgs.lib.licenses.mit;
+            maintainers = [ "cswimr" ];
+          };
+        })
+        (ps.buildPythonPackage rec {
+          name = "xontrib-sh";
+          version = "0.3.1";
 
-      taildrop = "tailscale file";
+          src = pkgs.fetchFromGitHub {
+            owner = "anki-code";
+            repo = name;
+            rev = version;
+            sha256 = "KL/AxcsvjxqxvjDlf1axitgME3T+iyuW6OFb1foRzN8=";
+          };
 
-      forgejo-runner = "act_runner";
-      runactions =
-        "act_runner exec --default-actions-url=https://www.coastalcommits.com --gitea-instance=https://www.coastalcommits.com";
-
-      c = "clear";
-      # alias sudo to itself so user aliases can be sudoed
-      sudo = "sudo ";
-      s = "sudo ";
+          meta = {
+            homepage = "https://github.com/anki-code/xontrib-sh";
+            description =
+              "Paste and run commands from bash, zsh, fish, tcsh in xonsh shell.";
+            license = pkgs.lib.licenses.mit;
+            maintainers = [ "cswimr" ];
+          };
+        })
+      ];
     };
   };
 }

nixos/symlinks.nix

@@ -0,0 +1,5 @@
+{
+  environment.etc = {
+    "xonsh/rc.d".source = ../config/xonsh;
+  };
+}