From bc078034f8d5e7c014b2f7e7ca6d658749bbba7c Mon Sep 17 00:00:00 2001
From: Oliver Sanders <oliver.sanders@metoffice.gov.uk>
Date: Tue, 14 Jan 2025 15:32:52 +0000
Subject: [PATCH 1/2] gui: always allow starting a standalone GUI with --new

---
 changes.d/661.feat.md        | 1 +
 cylc/uiserver/app.py         | 4 +++-
 cylc/uiserver/scripts/gui.py | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)
 create mode 100644 changes.d/661.feat.md

diff --git a/changes.d/661.feat.md b/changes.d/661.feat.md
new file mode 100644
index 00000000..ec1e4d93
--- /dev/null
+++ b/changes.d/661.feat.md
@@ -0,0 +1 @@
+The GUI can now be launched in standalone mode even if `[hub]url` is configured using the `--new` option.
diff --git a/cylc/uiserver/app.py b/cylc/uiserver/app.py
index 46abeab4..afe9aa3c 100644
--- a/cylc/uiserver/app.py
+++ b/cylc/uiserver/app.py
@@ -142,7 +142,9 @@ class CylcUIServer(ExtensionApp):
     cylc gui                  # Start the Cylc GUI (at the dashboard page)
     cylc gui [workflow]       # Start the Cylc GUI (at the workflow page)
     cylc gui --new [workflow] # Start a new Cylc server instance if an old one
-                              # has become unresponsive.
+                              # has become unresponsive, or, if the GUI has
+                              # been configured to launch via a centralised
+                              # hub.
     cylc gui --no-browser     # Start the server but don't open the browser
 
     ''')  # type: ignore[assignment]
diff --git a/cylc/uiserver/scripts/gui.py b/cylc/uiserver/scripts/gui.py
index 6aa86ca1..40a12c4c 100644
--- a/cylc/uiserver/scripts/gui.py
+++ b/cylc/uiserver/scripts/gui.py
@@ -75,7 +75,7 @@ def main(*argv):
             '''))
         return
     if not {'--help', '--help-all'} & set(sys.argv):
-        if hub_url:
+        if hub_url and not new_gui:
             print(f"Running on {hub_url } as specified in global config.")
             webbrowser.open(
                 update_url(hub_url, workflow_id), autoraise=True

From a4c944bb70162681a9d636abbd7028d5a3046431 Mon Sep 17 00:00:00 2001
From: Oliver Sanders <oliver.sanders@metoffice.gov.uk>
Date: Wed, 15 Jan 2025 10:24:44 +0000
Subject: [PATCH 2/2] Update changes.d/661.feat.md

Co-authored-by: Hilary James Oliver <hilary.j.oliver@gmail.com>
---
 changes.d/661.feat.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/changes.d/661.feat.md b/changes.d/661.feat.md
index ec1e4d93..62fa704b 100644
--- a/changes.d/661.feat.md
+++ b/changes.d/661.feat.md
@@ -1 +1 @@
-The GUI can now be launched in standalone mode even if `[hub]url` is configured using the `--new` option.
+The GUI can now be launched in standalone mode even if `[hub]url` is configured, using the `--new` option.