add dex

systems/modules/home/programs/zsh.nix

@@ -5,6 +5,7 @@
 
   programs.zsh = {
     enable = true;
+
     oh-my-zsh = {
       enable = true;
       theme = "agnoster";
@@ -13,6 +14,31 @@
     initContent = ''
       # Use kitty's ssh helper if running inside kitty
       [ "$TERM" = "xterm-kitty" ] && alias ssh="kitty +kitten ssh"
+
+      dex() {
+        local container
+
+        container=$(
+          docker ps --format 'table {{.Names}}\t{{.Image}}\t{{.Status}}' \
+            | tail -n +2 \
+            | fzf \
+                --header='Select container' \
+                --height=80% \
+                --layout=reverse \
+                --border \
+                --preview 'docker logs --tail=30 {1}' \
+            | awk '{print $1}'
+        )
+
+        [ -z "$container" ] && return 0
+        docker exec -it "$container" sh -c '
+          if command -v bash >/dev/null 2>&1; then
+            exec bash
+          else
+            exec sh
+          fi
+        '
+      }
     '';
   };
 }