SHA display touchups (#8614)

* Only showing last 8 chars of SHA

* visual touchups

* Grabbing first 8 rather than last 8

* 10 char SHA rather than 8

* atting config var for SHA length

superset/assets/stylesheets/superset.less

@@ -138,7 +138,8 @@ span.title-block {
 div.navbar {
   z-index: 999;
   .dropdown-menu .fineprint {
-    padding: 10px 20px 0 20px;
+    line-height: 1.5rem;
+    padding: 10px 20px 5px 20px;
     color: @gray-light;
     font-size: @font-size-m;
     div {

superset/config.py

@@ -67,10 +67,10 @@ def _try_json_readversion(filepath):
         return None
 
 
-def _try_json_readsha(filepath):
+def _try_json_readsha(filepath, length):
     try:
         with open(filepath, "r") as f:
-            return json.load(f).get("GIT_SHA")
+            return json.load(f).get("GIT_SHA")[:length]
     except Exception:
         return None
 
@@ -84,7 +84,8 @@ VERSION_STRING = _try_json_readversion(VERSION_INFO_FILE) or _try_json_readversi
     PACKAGE_JSON_FILE
 )
 
-VERSION_SHA = _try_json_readsha(VERSION_INFO_FILE)
+VERSION_SHA_LENGTH = 8
+VERSION_SHA = _try_json_readsha(VERSION_INFO_FILE, VERSION_SHA_LENGTH)
 
 ROW_LIMIT = 50000
 VIZ_ROW_LIMIT = 10000

superset/templates/appbuilder/navbar_right.html

@@ -111,7 +111,7 @@
             {% if version_string or version_sha %}
               <li class="fineprint">
                 {% if version_string %}
-                  <div>Version {{version_string}}</div>
+                  <div>Version: {{version_string}}</div>
                 {% endif %}
                 {% if version_sha %}
                   <div>SHA: {{version_sha}}</div>