Forces a newer version of fish from the PPA

update.sh

@@ -151,10 +151,25 @@ function load_gnome_terminal_profiles() {
 
 function install_fish() {
 	echo "--- Ensuring fish is current shell"
+	local fish_good=0
     if ! which fish 1>/dev/null
     then
-		echo "+++ Installing fish"
-		run sudo apt-get install -y fish
+		fish_good=1
+	fi
+
+	local current_version=$(fish --version | cut -d " " -f 3)
+	if [ $(echo "${current_version}\n3.4.0" | sort | head -1) != "3.4.0" ]
+	then
+		echo "Wrong version of fish ${current_version}"
+		fish_good=1
+	fi
+
+	if [ $fish_good -eq 1 ]
+	then
+		echo "+++ Installing fish from PPA"
+		run sudo add-apt-repository -y ppa:fish-shell/release-3
+		run sudo apt update
+		run sudo apt install -y fish
 	else
 		echo "+++ Fish is installed"
     fi