Added support for nested directory levels

[MattJ]

We use trac to manage multiple projects and we organize our distrib area by project/version/build and only have the packages and their signatures within the build sub-directories. As out of the box tracdown only listed files within each project we added support for arbitrary depth of sub-directories.

Thought others might be interested in the modification...

Index: tracdown.py
===================================================================
--- tracdown.py	(revision 11)
+++ tracdown.py	(working copy)
@@ -14,6 +14,28 @@
     file_cs = """
 <?cs include "header.cs"?>
 <?cs include "rectang_menu_top.cs"?>
+
+<?cs def:cat_list(val, prefix) ?>
+   <?cs each:element = val.files ?>
+    <tr class="<?cs if:name(element) % #2 ?>even<?cs else ?>odd<?cs /if ?>">
+      <td class="name"<?cs if:element.padding ?> style="padding-left: <?cs var:element.padding ?>px"<?cs /if ?>
+      <?cs if:element.size == -2 ?>
+         colspan="3"><i><?cs var:element.name ?></i></td>
+      </tr>
+    <?cs elif:element.size == -1 ?>
+         colspan="3"><?cs var:prefix ?><a class="dir" href="<?cs var:element.url ?>"><?cs var:element.name ?></a></td>
+      </tr>
+      <?cs call:cat_list(element, prefix) ?>
+    <?cs else ?>
+         ><?cs var:prefix ?><a class="file" href="<?cs var:element.url ?>"><?cs var:element.name ?></a></td>
+         <td class="size"><?cs var:element.size ?></td>
+         <td class="age"><?cs var:element.time ?></td>
+      </tr>
+      <?cs call:cat_list(element, prefix) ?>
+    <?cs /if ?>
+   <?cs /each?>
+<?cs /def ?>
+
 <div id="ctxtnav" class="nav">
  <h2>Files Navigation</h2>
  <ul>
@@ -37,13 +59,7 @@
    </tr>
   </thead>
   <tbody>
-   <?cs each:file = category.files ?>
-    <tr class="<?cs if:name(file) % #2 ?>even<?cs else ?>odd<?cs /if ?>">
-     <td class="name"><a class="file" href="<?cs var:file.url ?>"><?cs var:file.name ?></a></td>
-     <td class="size"><?cs var:file.size ?></td>
-     <td class="age"><?cs var:file.time ?></td>
-    </tr>
-   <?cs /each?>
+    <?cs call:cat_list(category, "") ?>
   </tbody>
  </table>
 
@@ -65,62 +81,82 @@
         if match:
             return 1
 
-    def listcategories(self, root, sort, order=None):
+    def listcategories(self, req, directory, prefix, padding, sort, order=None, toplevel=False):
         files = []
-        names = os.listdir(root)
-        if (sort):
-            names.sort()
-            if (order == "rev" or order == "reverse"):
-                names.reverse()
+        directories = []
 
-        for file in names:
-            if os.path.isdir(os.path.join(root, file)):
-                files.append(file)
-        return files
-
-    def listfiles(self, root, category, sort, order=None):
-        files = []
-        names = os.listdir(os.path.join(root, category))
+        names = os.listdir(directory)
         if (sort):
             if (order == "age"):
                 names.sort(lambda x, y: os.path.getmtime(os.sep.join([root, category, x])) - os.path.getmtime(os.sep.join([root, category, y])))
                 names.reverse()
             else:
                 names.sort()
+            if (order == "rev" or order == "reverse"):
+                names.reverse()
 
-        for file in names:
-            files.append(file)
-        return files
 
+        for cat in names:
+            path = os.path.join(directory, cat)
+            if os.path.isdir(path):
+                url = "/downloads" + prefix + '/' + cat
+
+                if toplevel or len(req.path_info)>=len(url) and req.path_info[0:len(url)]==url :
+                    next_level = padding
+                    if not toplevel:
+                        next_level+=30
+
+                    subcategories = self.listcategories(req, path, prefix + '/' + cat, next_level, sort, order);
+                    directories.append({'name': cat,
+                                        'time': self.timestamp(path),
+                                        'url' : url,
+                                        'files': subcategories,
+                                        'padding' : padding,
+                                        'size': -1})
+                else:
+                    directories.append({'name': cat,
+                                        'time': self.timestamp(path),
+                                        'url' : url,
+                                        'padding' : padding,
+                                        'size': -1})
+            else:
+                url = self.config.get('download', 'url') + prefix + '/' + cat
+                files.append({'name': cat,
+                              'time': self.timestamp(path),
+                              'size': util.pretty_size(os.path.getsize(path)),
+                              'padding' : padding,
+                              'url': url})
+
+        if len(directories)==0 and len(files)==0:
+            directories.append({'name' : 'No released files',
+                                'padding' : padding,
+                                'size' : -2})
+
+        return directories + files
+
+
     def timestamp(self, path):
         thetime = os.path.getmtime(path)
         return time.strftime('%x %X', time.localtime(thetime))
 
+
+
     def process_request(self, req):
         req.hdf['title'] = self.config.get('download', 'title') or "Downloads"
         req.hdf['nightly'] = self.config.get('download', 'nightly') or "nightly"
         req.hdf['files.baseLink'] = self.env.href.cruisecontrol()
 
+        relpath = self.config.get('download','url')
+
+
         path = self.config.get('download', 'path') + '/'
-        baseurl = self.config.get('download', 'url') + '/'
         sort = self.config.get('download', 'sort') == 'true'
         catorder = self.config.get('download', 'category-order')
         order = self.config.get('download', 'file-order')
-        categories = self.listcategories(path, sort, order=catorder)
-        list = []
-        for category in categories:
-            files = []
-            for file in self.listfiles(path, category, sort, order=order):
-                url = baseurl + category + '/' + file
-                filename = os.path.join(path, category, file)
-                files.append({'name': file,
-                              'time': self.timestamp(filename),
-                              'size': util.pretty_size(os.path.getsize(filename)),
-                              'url': url})
-            list.append({'name': category,
-                         'time': self.timestamp(os.path.join(path, category)),
-                         'files': files})
-        req.hdf['files.categories'] = list
+
+        categories = self.listcategories(req, path, '', 0, sort, order=catorder, toplevel=True)
+
+        req.hdf['files.categories'] = categories
         template = req.hdf.parse(self.file_cs)
         add_stylesheet(req, 'common/css/browser.css')
         return template, None