Fix ddev phpmyadmin for Gitpod (#21)

Author: stasadev

README.md

@@ -21,7 +21,4 @@ You can run phpMyAdmin easily with the command after installing this add-on:
 ddev phpmyadmin
 ```
 
-> [!TIP]
-> For Gitpod: The `ddev phpmyadmin` command can open a blank page in preview mode, open the link in a new browser tab/window to make it work.
-
 **Contributed and maintained by [@rfay](https://github.com/rfay)**

commands/host/phpmyadmin

@@ -8,7 +8,12 @@
 DDEV_PHPMYADMIN_PORT=8036
 DDEV_PHPMYADMIN_HTTPS_PORT=8037
 if [ ${DDEV_PRIMARY_URL%://*} = "http" ] || [ -n "${GITPOD_WORKSPACE_ID:-}" ] || [ "${CODESPACES:-}" = "true" ]; then
-    ddev launch :$DDEV_PHPMYADMIN_PORT
+    # Gitpod: "gp preview" opens a blank page for PhpMyAdmin, use "xdg-open" instead
+    if [ "${OSTYPE:-}" = "linux-gnu" ] && [ -n "${GITPOD_WORKSPACE_ID:-}" ] && [ -z "${DDEV_DEBUG:-}" ]; then
+        xdg-open "$(DDEV_DEBUG=true ddev launch :$DDEV_PHPMYADMIN_PORT | grep "FULLURL" | awk '{print $2}')"
+    else
+        ddev launch :$DDEV_PHPMYADMIN_PORT
+    fi
 else
     ddev launch :$DDEV_PHPMYADMIN_HTTPS_PORT
 fi