feat(nix): setup shell and env for nix

zsh/nix.zsh

@@ -0,0 +1,21 @@
+#
+# Nix interative setup
+#
+
+sort_nix_paths() {
+  local nix_paths=()
+
+  for p in "${(@)path}"; do
+    if [[ "$p" == "/nix/store/"* ]]; then
+      nix_paths+=("$p")
+    fi
+  done
+
+  for p in "${(@)nix_paths}"; do
+    path_prepend "$p"
+  done
+}
+
+if command-exists nix-shell; then
+  sort_nix_paths
+fi

zshenv

@@ -130,6 +130,12 @@ if [ -f "/home/linuxbrew/.linuxbrew/bin/brew" ]; then
   path_prepend "${HOMEBREW_PREFIX}/sbin"
 fi
 
+# Nix
+if [ -e '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh' ]; then
+  source '/nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh'
+  # export NIX_PATH="$HOME/.nix-defexpr"
+fi
+
 # Android SDK environment setup.
 if [ -d "$HOME/Library/Android/sdk" ]; then
   export ANDROID_HOME="$HOME/Library/Android/sdk"

zshrc

@@ -130,6 +130,7 @@ source "$DOTZSH/1password.zsh"
 source "$DOTZSH/emacs.zsh"
 source "$DOTZSH/fzf.zsh"
 source "$DOTZSH/less.zsh"
+source "$DOTZSH/nix.zsh"
 source "$DOTZSH/tmux.zsh"
 
 # Development