Added ``--local-snapshots-ok`` flag, to allow building eggs from

projects installed using ``setup.py develop``.  (backport from trunk)

--HG--
branch : setuptools-0.6
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/branches/setuptools-0.6%4053877

1 files changed, 14 insertions, 14 deletions

diff --git a/setuptools/package_index.py b/setuptools/package_index.py
index d3f3f561..e4d7e6b9 100755
--- a/setuptools/package_index.py
+++ b/setuptools/package_index.py
@@ -228,20 +228,20 @@ class PackageIndex(Environment):
         else:
             self.warn(msg, url)
 
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+    def scan_egg_links(self, search_path):
+        for item in search_path:
+            if os.path.isdir(item):
+                for entry in os.listdir(item):
+                    if entry.endswith('.egg-link'):
+                        self.scan_egg_link(item, entry)
+
+    def scan_egg_link(self, path, entry):
+        lines = filter(None, map(str.strip, file(os.path.join(path, entry))))
+        if len(lines)==2:
+            for dist in find_distributions(os.path.join(path, lines[0])):
+                dist.location = os.path.join(path, *lines)
+                dist.precedence = SOURCE_DIST
+                self.add(dist)
 
 
     def process_index(self,url,page):