added option to enable automatic popularity data in installer

inc/lang/en/lang.php

@@ -312,6 +312,8 @@ $lang['i_pol2']                = 'Closed Wiki (read, write, upload for registere
 $lang['i_retry']               = 'Retry';
 $lang['i_license']             = 'Please choose the license you want to put your content under:';
 $lang['i_license_none']        = 'Do not show any license information';
+$lang['i_pop_field']           = 'Please, help us to improve the DokuWiki experience:';
+$lang['i_pop_label']           = 'Once a month, send anonymous usage data to the DokuWiki developers';
 
 $lang['recent_global']         = 'You\'re currently watching the changes inside the <b>%s</b> namespace. You can also <a href="%s">view the recent changes of the whole wiki</a>.';
 $lang['years']                 = '%d years ago';

install.php

@@ -167,6 +167,7 @@ function print_form($d){
     $d = array_map('htmlspecialchars',$d);
 
     if(!isset($d['acl'])) $d['acl']=1;
+    if(!isset($d['pop'])) $d['pop']=1;
 
     ?>
     <form action="" method="post">
@@ -223,6 +224,14 @@ function print_form($d){
             ?>
         </fieldset>
 
+        <fieldset>
+            <p><?php echo $lang['i_pop_field']?></p>
+            <label for="pop">
+                <input type="checkbox" name="d[pop]" id="pop" <?php echo(($d['pop'] ? ' checked="checked"' : ''));?> />
+                <?php echo $lang['i_pop_label']?> <a href="http://www.dokuwiki.org/plugin:popularity" target="_blank"><sup>[?]</sup></a>
+            </label>
+        </fieldset>
+
     </fieldset>
     <fieldset id="process">
         <input class="button" type="submit" name="submit" value="<?php echo $lang['btn_save']?>" />
@@ -376,6 +385,12 @@ EOT;
         }
         $ok = $ok && fileWrite(DOKU_LOCAL.'acl.auth.php', $output);
     }
+
+    // enable popularity submission
+    if($d['pop']){
+        @touch(DOKU_INC.'data/cache/autosubmit.txt');
+    }
+
     return $ok;
 }