Improved introspection logic in shell config

.config/zsh/01-introspection.zsh

@@ -52,7 +52,7 @@ refresh-system-info() {
 	fi
 
 	# Parse detailed system info from hostnamectl, or synthesize what we can from /etc/machine-info and static and transient hostnames.
-	if type hostnamectl &>/dev/null; then
+	if type hostnamectl &>/dev/null && (( $(hostnamectl --version | head -n 1 | cut -d' ' -f2) >= 252 )); then
 		# We can get all relevant data from hostnamectl, so lets do that.
 		eval $(hostnamectl --json=short | jq -r 'to_entries | .[] | select((.value | type) != "array" and (.value | type) != "object" and (.value | type) != "null") | "SYSTEM_INFO[\(.key)]=\(.value | @sh)"')
 		INTRO_STATE[SYSTEM_INFO]=full

.config/zsh/10-utils.zsh

@@ -37,12 +37,12 @@ function random-xkcd() {
 	curl $(echo $html | (echo "https:"$(xmllint --html --xpath 'string(//html/body/div[@id="middleContainer"]/div[@id="comic"]/img/@src)' - 2>/dev/null))) 2>/dev/null | feh -
 }
 
-if [[ $(hostnamectl chassis) == "container" ]]; then
-	DEFAULT_WINDOW_NAME="Container Connection: [ ${SYSTEM_INFO[PrettyHostname]:-${SYSTEM_INFO[Hostname]}} Console ]"
+if [[ ${SYSTEM_INFO[Chassis]} == "container" ]]; then
+	DEFAULT_WINDOW_NAME="[ Container Connection ] ${SYSTEM_INFO[PrettyHostname]:-${SYSTEM_INFO[Hostname]}} Console"
 elif [[ -z "${SSH_CONNECTION+x}" ]]; then
 	DEFAULT_WINDOW_NAME="${SYSTEM_INFO[PrettyHostname]:-${SYSTEM_INFO[Hostname]}} Console"
 else
-	DEFAULT_WINDOW_NAME="Remote Connection: [ ${SYSTEM_INFO[PrettyHostname]:-${SYSTEM_INFO[Hostname]}} Console ]"
+	DEFAULT_WINDOW_NAME="[ Remote Connection ] ${SYSTEM_INFO[PrettyHostname]:-${SYSTEM_INFO[Hostname]}} Console"
 fi
 
 function _rename_window() {
@@ -138,14 +138,16 @@ function bwunlock() {
 
 }
 
-function su {
-	local user
-	user=$1
-	if [[ $user == '' ]]; then
-		user=root
-	fi
-	machinectl -q shell "${user}@"
-}
+if type machinectl &>/dev/null; then
+	function su {
+		local user
+		user=$1
+		if [[ $user == '' ]]; then
+			user=root
+		fi
+		machinectl -q shell "${user}@"
+	}
+fi
 
 alias relog='exec machinectl -q shell "${USER}@"'
 
@@ -202,6 +204,7 @@ function ssh-copy-shell {
 	ssh -p ${port} ${host} mkdir -p .config .local/lib
 	# Deploy files
 	sftp -P ${port} ${host} <<SFTP
+lcd ~
 put -R .config/zsh .config
 put -R .local/lib/zsh .local/lib
 put .zshrc

.config/zsh/90-prompt.zsh

@@ -26,7 +26,7 @@ precmd_kernel_info() {
 
 	# if message has been set, don't check again, since a reboot
 	# is required to clear the message
-	if [[ -n ${kernel_info_msg_0_} ]]; then
+	if [[ ${kernel_info_msg_0_+x} == "x" ]]; then
 		return
 	fi
 	if [[ ${OS_RELEASE[Id]} == "arch" ]] || [[ ${OS_RELEASE[IdLike]} == "arch" ]]; then
@@ -34,7 +34,7 @@ precmd_kernel_info() {
 		# just check to see if /usr/lib/modules/$(uname -r)/vmlinuz exists
 		if ! [[ -f /usr/lib/modules/$(uname -r)/vmlinuz ]]; then
 			# kernel update available
-			kernel_info_msg_0_="%F{red} reboot required %f"
+			kernel_info_msg_0_="%F{red}%B󱄋%b%f"
 		fi
 	fi
 }
@@ -55,9 +55,9 @@ if [[ ${SYSTEM_INFO[Chassis]} != "container" ]] && [[ ${OS_RELEASE[IdLike]:-${OS
 fi
 
 prompt_list=(
-	'$kernel_info_msg_0_' $'\n'
+	$'\n'
 	"%F{cyan}[%f " ${prompt_elements[deployment]} ${prompt_elements[host]} ${prompt_elements[privilege]} " %F{cyan}]%f" ${prompt_elements[console]} ${prompt_elements[pyenv]} ' ' ${prompt_elements[pwd]} ${prompt_elements[groups]}
-	" " ${prompt_elements[prompt]}
+	'$kernel_info_msg_0_ ' ${prompt_elements[prompt]}
 )
 rprompt_list=(
 	${prompt_elements[vcs]} ${prompt_elements[retcode]}