feat: add init.sh

script/tmux-init.sh

@@ -23,11 +23,19 @@ dotfile_help_requested "${1:-}" && dotfile_show_help
 set -euo pipefail
 
 echo 'Init tmux config'
-src=$HOME/.tmux.conf
-if [ -e "$src" ]; then
-    mv "$src" "$src.bak"
+src="$HOME/.tmux.conf"
+target="$HOME/.dotfile/tmux/.tmux.conf"
+if [ -L "$src" ] && [ "$(readlink "$src")" = "$target" ]; then
+    echo "  $src already links to dotfile config, skip"
+else
+    if [ -e "$src" ] || [ -L "$src" ]; then
+        backup="${src}.backup.$(date +%Y%m%d%H%M%S)"
+        mv "$src" "$backup"
+        echo "  Backed up existing config: $backup"
+    fi
+    ln -s "$target" "$src"
+    echo "  Linked: $src -> $target"
 fi
-ln -s "$HOME/.dotfile/tmux/.tmux.conf" "$src"
 
 echo 'Install tpm'
 if [ ! -e ~/.tmux/plugins/tpm ]; then
@@ -38,4 +46,8 @@ echo 'Install tmux plugin by tpm'
 "$HOME/.tmux/plugins/tpm/bin/install_plugins"
 
 echo 'Reload tmux'
-tmux source ~/.tmux.conf
+if tmux list-sessions >/dev/null 2>&1; then
+    tmux source-file "$src"
+else
+    echo '  No running tmux server, config will be loaded when tmux starts'
+fi