Nix : Add tmpshell.

.config/bash/module/Nix.sh

@@ -60,7 +60,7 @@ function nix_upgrade() {
 # Free up root space.
 function nix_clean() {
 	nix-collect-garbage -d
-	[[ "${UID}" = 0 ]] && nix-store --gc
+	_is_root && nix-store --gc
 }
 
 # Spawn shell with specified nix environment. `Main` is default.
@@ -71,20 +71,21 @@ function nix_shell() {
 
 	nix_shell="${name}" nix-shell ~/.config/linux/shell/"${name^}".nix
 }
-alias mkshell="nix_shell"
+alias shell="nix_shell"
 
 # Spawn nix-shell with specified packages.
-# Usage: shell <PACKAGES>
-function shell() {
+# Usage: nix_tmpshell <PACKAGES>
+function nix_tmpshell() {
 	local pkgs="${*}"
 
 	if [[ "${pkgs}" = "" ]]; then
-		help shell
+		help nix_tmpshell
 		return 2
 	fi
 
-	nix-shell -p "${pkgs}"
+	nix_shell="tmp" nix-shell -p "${pkgs}"
 }
+alias tmpshell="nix_tmpshell"
 
 # Autocomplete with available hosts.
 function _comp_hosts() {
@@ -103,4 +104,4 @@ function _comp_shells() {
 }
 
 complete -F _comp_hosts nix_update nix_upgrade
-complete -F _comp_shells nix_shell mkshell
+complete -F _comp_shells nix_shell shell

.config/bash/module/Util.sh

@@ -121,3 +121,8 @@ function _contains() {
 function _is_tmux() {
 	[[ "${TERM_PROGRAM}" = "tmux" ]]
 }
+
+# Check if root.
+function _is_root() {
+	[[ "${UID}" = 0 ]]
+}

.doc/Bash.md

@@ -280,7 +280,7 @@ Command|Description
 `nix_upgrade [HOSTNAME]`|Upgrade system. Applies after reboot. Optionally force the hostname. 
 `nix_clean`|Free up root space. 
 `nix_shell [NAME]`|Spawn shell with specified nix environment. `Main` is default. 
-`shell <PACKAGES>`|Spawn nix-shell with specified packages. 
+`nix_tmpshell <PACKAGES>`|Spawn nix-shell with specified packages. 
 
 ## Notify.