From 781b1c026fd52077adaa324c7ccec494e0f6c70f Mon Sep 17 00:00:00 2001
From: anmiller <anmiller@penguinrandomhouse.com>
Date: Fri, 17 May 2024 15:27:49 +0000
Subject: [PATCH] Add installers for common programs to bring along

---
 installers/install-nix-packages-flake.sh | 109 +++++++++++++++++++++++
 installers/install-nix.sh                |  35 ++++++++
 2 files changed, 144 insertions(+)
 create mode 100755 installers/install-nix-packages-flake.sh
 create mode 100755 installers/install-nix.sh

diff --git a/installers/install-nix-packages-flake.sh b/installers/install-nix-packages-flake.sh
new file mode 100755
index 0000000..4c7712f
--- /dev/null
+++ b/installers/install-nix-packages-flake.sh
@@ -0,0 +1,109 @@
+#!/usr/bin/env bash
+# Installs packages to the nix profile using nix profile
+# Reference: https://nixos.org/manual/nixpkgs/stable/#sec-declarative-package-management
+
+set -ex
+
+nix_packages=(
+  # Personal tools
+  "vimHugeX"
+  "ranger"
+  "jq"
+  "yq"
+
+  # Neovim + Plugin dependencies
+  "neovim"
+  "ripgrep"
+  "fzf"
+
+  # Language servers
+  "helm-ls"
+  "yaml-language-server"
+  "lua-language-server"
+  
+  # ProgrammingLanguages
+  "lua52Packages.lua"
+
+  "pass"
+  "gnupg"
+
+  # Professional tools
+  "skopeo"
+  "awscli2"
+
+  "kubectl"
+  "kubernetes-helm"
+  "rancher"
+
+  #"terraform"
+  "opentofu"
+  "terragrunt"
+)
+unstable_packages=(
+  # CVE in NixOS stable version of vault
+  "vault"
+)
+
+
+mkdir -p ~/.config/nixpkgs/
+templated_insert=$(for nix_package in ${nix_packages[@]}; do echo "                $nix_package"; done)
+
+
+# Reference: https://discourse.nixos.org/t/nix-profile-in-combination-with-declarative-package-management/21228/9
+cat << EOF > ~/.config/nixpkgs/flake.nix
+{
+  description = "A declarative system installation";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11"; # also possible: nixos-unstable
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+
+      # Generate a user-friendly version number.
+      version = builtins.substring 0 8 self.lastModifiedDate;
+
+      # Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'.
+      forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
+
+      # Nixpkgs instantiated for supported system types.
+      nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; });
+    in {
+      packages = forAllSystems (system:
+        let
+          pkgs = nixpkgsFor.\${system};
+        in {
+          default = self.packages.\${system}.myPackageCollection;
+          myPackageCollection = # libs and clis
+            let
+              pkgs = nixpkgs.legacyPackages.\${system}; # here we need just legacy packages
+            in pkgs.buildEnv {
+              name = "myPackages";
+              paths = with pkgs; [
+${templated_insert}
+              ];
+
+               extraOutputsToInstall = [ "man" "doc" ];
+            };
+        }); # packages
+    }; # outputs
+}
+EOF
+
+install_nix_packages()
+{
+  # The name of the package we are going to install, needed to check for presence/uninstall
+  package_name=packages.x86_64-linux.myPackageCollection
+  if [ "${nix_packages[*]}" ]; then
+    if nix profile list | cut -d' ' -f 2 | grep -q "${package_name}"; then
+      echo "Removing previous version of profile"
+      nix profile remove "${package_name}"
+    fi
+    echo "Installing profile"
+    nix profile install "${HOME}/.config/nixpkgs/flake.nix#myPackageCollection"
+  fi
+}
+
+install_nix_packages
diff --git a/installers/install-nix.sh b/installers/install-nix.sh
new file mode 100755
index 0000000..766f703
--- /dev/null
+++ b/installers/install-nix.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+
+# Install the Nix package manager as a secondary package manager.
+# This can sometimes be useful for getting more recent packages.
+
+set -e
+set -x
+
+# Abort installation if Nix is already installed
+if [ -d /nix ]; then
+  exit 0
+fi
+
+# Download the Nix installer and it's signature from NixOS.org
+curl -so install-nix https://releases.nixos.org/nix/nix-2.18.1/install
+
+# Run the installer
+sh ./install-nix
+
+# Source the nix profile 
+cat << EOF > ~vagrant/.bashrc
+# Source nix if it's installed
+if [ -r ~/.nix-profile/etc/profile.d/nix.sh ]; then
+  . ~/.nix-profile/etc/profile.d/nix.sh
+fi
+EOF
+
+# Remove the installer and signature
+rm -f ./install-nix
+
+# Enable flakes and the nix command
+mkdir -p ~/.config/nix
+cat <<EOF > ~/.config/nix/nix.conf
+experimental-features = flakes nix-command
+EOF