Egg files without SOURCES.txt not displayed correctly on plugin admin page

[Ryan J Ollos]

Discussed in ​gmessage:trac-users:AUBRFehR83c/ZRjKm-SnCAAJ

Trac Debian package should have *.egg-info/SOURCES.txt file. Searching the SOURCES.txt file in debian packages, several packages have SOURCES.txt file.

​https://packages.debian.org/file:.egg-info/SOURCES.txt

(If *.dist-info structure is used, RECORD file must be included. (2))

However, according to The Internal Structure of Python Eggs (1), it seems that it is possible to have no SOURCES.txt file in egg-info structure.

Work around:

trac/util/__init__.py

@@ -700 +700 @@
      """Return a dictionary mapping Python module source paths to the
      distributions that contain them.
      """
+    path = os.path.normpath(os.path.abspath(path))
      sources = {}
      for dist in find_distributions(path, only=True):
          if not dist.has_metadata('top_level.txt'):
@@ -717 +718 @@
                             for row in reader if any(row[0].startswith(top)
                                                      for top in toplevels))
              continue
+        for top in toplevels:
+            dir_ = os.path.normpath(os.path.join(dist.location,
+                                                 top.rstrip('/')))
+            if not os.path.isdir(dir_):
+                continue
+            for root, dirs, files in os.walk(dir_):
+                for filename in files:
+                    if not filename.endswith('.py'):
+                        continue
+                    filename = os.path.join(root, filename)
+                    sources[filename[len(path):].strip(os.sep)
+                                                .replace(os.sep, '/')] = dist
      return sources

1. ​https://svn.python.org/projects/sandbox/trunk/setuptools/doc/formats.txt
2. ​https://www.python.org/dev/peps/pep-0376/#one-dist-info-directory-per-installed-distribution