Allow --process-dependency-links in req files

closes #1274

CHANGES.txt

@@ -16,6 +16,8 @@
 
 * Allow ``--trusted-host`` within a requirements file. :issue:`2822`.
 
+* Allow ``--process-dependency-links`` within a requirements file. :issue:`1274`.
+
 
 **7.1.2 (2015-08-22)**
 

pip/req/req_file.py

@@ -43,6 +43,7 @@ SUPPORTED_OPTIONS = [
     cmdoptions.always_unzip,
     cmdoptions.no_binary,
     cmdoptions.only_binary,
+    cmdoptions.process_dependency_links,
     cmdoptions.trusted_host,
 ]
 
@@ -219,6 +220,8 @@ def process_line(line, filename, line_number, finder=None, comes_from=None,
             if os.path.exists(relative_to_reqs_file):
                 value = relative_to_reqs_file
             finder.find_links.append(value)
+        if opts.process_dependency_links:
+            finder.process_dependency_links = True
         if opts.trusted_hosts:
             finder.secure_origins.extend(
                 ("*", host, "*") for host in opts.trusted_hosts)

tests/unit/test_req_file.py

@@ -293,6 +293,11 @@ class TestProcessLine(object):
         call = mock_parse.mock_calls[0]
         assert call[1][0] == 'http://me.com/me/reqs.txt'
 
+    def test_set_finder_process_dependency_links(self, finder):
+        list(process_line(
+            "--process-dependency-links", "file", 1, finder=finder))
+        assert finder.process_dependency_links
+
 
 class TestBreakOptionsArgs(object):