improve admin git info card

www/data/css/styles.css

@@ -971,6 +971,10 @@ html, body {
   padding-bottom: 2px;
 }
 
+.admin_ajax_gitfield_error {
+  color: #FF0000;
+}
+
 /* 400px */
 #loginform div {
   display: flex;

www/data/css/styles.min.css

@@ -188,6 +188,7 @@ html,body{margin:0;padding:0;height:100%}
 .boxedcontent.graybox .bc_data{padding-top:2px;padding-bottom:2px}
 .boxedcontent.successbox{background-color:#168b00;color:#222;border:1px solid #444;font-weight:bold;text-align:center}
 .boxedcontent.successbox .bc_data{padding-top:2px;padding-bottom:2px}
+.admin_ajax_gitfield_error{color:red}
 #loginform div{display:flex;flex-direction:column}
 #loginform div button{margin:10px 0;padding:0}
 .loginerror{display:flex;background:#f44;color:#222;border:1px solid #a44;border-radius:2px;font-weight:bold;padding:0 5px;margin:5px 0 20px 0}

www/data/css/styles_admin.scss

@@ -136,3 +136,7 @@
     padding-bottom: 2px;
   }
 }
+
+.admin_ajax_gitfield_error {
+  color: $COL_ADMIN_ERROR;
+}

www/data/javascript/admin.js

@@ -148,8 +148,33 @@ function refreshSingle(apibutton, then)
         });
 }
 
+function queryGitField(dest)
+{
+    const ddest = $(dest);
+
+    let config =
+        {
+            url: '/api/site::gitinfo?field=' + ddest.attr('data-ajax_gitfield'),
+            type: 'GET',
+            dataType: 'text',
+            cache : false,
+        };
+
+    $.ajax(config)
+        .done((data, status, xhr) =>
+        {
+            ddest.text(data);
+        })
+        .fail((xhr, status, err) =>
+        {
+            ddest.addClass('admin_ajax_gitfield_error');
+            ddest.text('ERROR');
+        });
+}
+
 $(function()
 {
-    for (let apibutton of $('.selftest_sequential').toArray()) setTimeout(() => refreshConsistencyDisplaySequential(0), 200);
-    for (let apibutton of $('.selftest_parallel').toArray())   setTimeout(() => refreshConsistencyDisplayParallel(), 200);
+    for (let elem of $('.selftest_sequential').toArray()) setTimeout(() => refreshConsistencyDisplaySequential(0), 200);
+    for (let elem of $('.selftest_parallel').toArray())   setTimeout(() => refreshConsistencyDisplayParallel(), 200);
+    for (let elem of $('.admin_ajax_gitfield').toArray())   setTimeout(() => queryGitField(elem), 0);
 });