[defcon] Stop unnecessary edits; update info param

The bot will now read the existing RPM value from Template:Vandalism information and only edit when the one it has just calculated is different. Furthermore, the bot will now specify the RPM (to two decimal places) in the `info` parameter of Template:Vandalism information.

defcon/defcon.py

@@ -19,15 +19,17 @@
 rpm = float(num_reverts) / 30
 
 template_page = pywikibot.Page(site, TEMPLATE_NAME)
-try:
-    template = open(TEMPLATE_PATH)
-except IOError as e:
-    print(e)
-else:
+current_rpm_match = re.search("WikiDefcon/levels\|(\d+)", template_page.get())
+if (not current_rpm_match) or (current_defcon_match.group(1) != int(rpm)):
     try:
-        template_page.text = template.read() % int(rpm)
-    except Exception as e:
+        template = open(TEMPLATE_PATH)
+    except IOError as e:
         print(e)
-    finally:
-        template.close()
-template_page.save(COMMENT % int(rpm))
+    else:
+        try:
+            template_page.text = template.read() % (int(rpm), rpm)
+            template_page.save(COMMENT % int(rpm))
+        except Exception as e:
+            print(e)
+        finally:
+            template.close()

defcon/template.txt

@@ -1,7 +1,7 @@
 {{{{#if:{{{style|}}}|wdefcon/styles/{{{style}}}|{{{prefix|User:Zsinj/}}}Wdefcon}}
 |level  = {{WikiDefcon/levels|%d}}
 |sign   = ~~~~~
-|info   = RPM stats according to [[User:APersonBot|APersonBot]]
+|info   = %.2f RPM according to [[User:APersonBot|APersonBot]]
 |align  = {{{align|}}}
 |noinfo = {{{noinfo|}}}
 |type   = {{{type|}}}