add footer with versions

html/footer.html

@@ -7,3 +7,7 @@
          • 
         <a href="/" onclick="javascript:gradioApp().getElementById('settings_restart_gradio').click(); return false">Reload UI</a>
 </div>
+<br />
+<div class="versions">
+{versions}
+</div>

launch.py

@@ -13,6 +13,21 @@ dir_extensions = "extensions"
 python = sys.executable
 git = os.environ.get('GIT', "git")
 index_url = os.environ.get('INDEX_URL', "")
+stored_commit_hash = None
+
+
+def commit_hash():
+    global stored_commit_hash
+
+    if stored_commit_hash is not None:
+        return stored_commit_hash
+
+    try:
+        stored_commit_hash = run(f"{git} rev-parse HEAD").strip()
+    except Exception:
+        stored_commit_hash = "<none>"
+
+    return stored_commit_hash
 
 
 def extract_arg(args, name):
@@ -194,10 +209,7 @@ def prepare_environment():
     xformers = '--xformers' in sys.argv
     ngrok = '--ngrok' in sys.argv
 
-    try:
-        commit = run(f"{git} rev-parse HEAD").strip()
-    except Exception:
-        commit = "<none>"
+    commit = commit_hash()
 
     print(f"Python {sys.version}")
     print(f"Commit hash: {commit}")

modules/ui.py

@@ -1696,7 +1696,9 @@ def create_ui():
 
         if os.path.exists("html/footer.html"):
             with open("html/footer.html", encoding="utf8") as file:
-                gr.HTML(file.read(), elem_id="footer")
+                footer = file.read()
+                footer = footer.format(versions=versions_html())
+                gr.HTML(footer, elem_id="footer")
 
         text_settings = gr.Textbox(elem_id="settings_json", value=lambda: opts.dumpjson(), visible=False)
         settings_submit.click(
@@ -1857,3 +1859,30 @@ def reload_javascript():
 
 if not hasattr(shared, 'GradioTemplateResponseOriginal'):
     shared.GradioTemplateResponseOriginal = gradio.routes.templates.TemplateResponse
+
+
+def versions_html():
+    import torch
+    import launch
+
+    python_version = ".".join([str(x) for x in sys.version_info[0:3]])
+    commit = launch.commit_hash()
+    short_commit = commit[0:8]
+
+    if shared.xformers_available:
+        import xformers
+        xformers_version = xformers.__version__
+    else:
+        xformers_version = "N/A"
+
+    return f"""
+python: <span title="{sys.version}">{python_version}</span>
+ • 
+torch: {torch.__version__}
+ • 
+xformers: {xformers_version}
+ • 
+gradio: {gr.__version__}
+ • 
+commit: <a href="https://github.com/AUTOMATIC1111/stable-diffusion-webui/commit/{commit}">{short_commit}</a>
+"""

style.css

@@ -628,6 +628,11 @@ footer {
     display: inline-block;
 }
 
+#footer .versions{
+    font-size: 85%;
+    opacity: 0.85;
+}
+
 /* The following handles localization for right-to-left (RTL) languages like Arabic.
 The rtl media type will only be activated by the logic in javascript/localization.js.
 If you change anything above, you need to make sure it is RTL compliant by just running