add(fish): clone_repo function, tmux-vim function and bindings

.config/fish/functions/tmux-vim.fish

@@ -1,14 +1,32 @@
-# idea stolen from the one and only primeagen
-# aiming to create one session per directory
+# Inspired by the one and only primeagen
 
-function tmux-vim
-    set -f session (snakecase $PWD)
+# This script names each session with the name of the directory where tmux is invoked
+# If there's already a session present for that directory, fuzzy search your way through
+
+function tmux-vim --description 'NeoVim, but in tmux (better)'
 
     tmux start-server
 
-    if not tmux has-session -t $session > /dev/null 2>&1
-        tmux new-session -d -s $session -n 'nvim' "nvim $argv"
+    if not tmux has-session -t "$PWD" > /dev/null 2>&1
+        # create new session and attach to it
+        tmux new-session -s "$PWD" -n "nvim" "nvim $argv"
+        return $status
+    else
+        # attach to existing session(s)
+        set -f choice (string join ';' "new" (tmux list-sessions -F "#{session_name}") | tr ';' '\n' | fzf)
     end
 
-    tmux attach-session -t $session
+    if test -z $choice
+        echo "[empty choice]"
+    else if test $choice = "new"
+        read -l -P "How would you like to name this session? " custom_name
+        tmux new-session -s "$custom_name"@"$PWD" -n 'nvim' "nvim $argv"
+        return $status
+    else
+        tmux attach-session -t "$choice"
+        return $status
+    end
+
+    commandline --function repaint
+
 end