Merge "Updated tox config for multi-python testing."

1 files changed, 45 insertions, 0 deletions

diff --git a/openstack/common/setup.py b/openstack/common/setup.py
index 7966cf7..28f5e6f 100644
--- a/openstack/common/setup.py
+++ b/openstack/common/setup.py
@@ -40,3 +40,48 @@ def str_dict_replace(s, mapping):
     for s1, s2 in mapping.iteritems():
         s = s.replace(s1, s2)
     return s
+
+
+# Get requirements from the first file that exists
+def get_reqs_from_files(requirements_files):
+    reqs_in = []
+    for requirements_file in requirements_files:
+        if os.path.exists(requirements_file):
+            return open(requirements_file, 'r').read().split('\n')
+    return []
+
+
+def parse_requirements(requirements_files=['requirements.txt',
+                                           'tools/pip-requires']):
+    requirements = []
+    for line in get_reqs_from_files(requirements_files):
+        if re.match(r'\s*-e\s+', line):
+            requirements.append(re.sub(r'\s*-e\s+.*#egg=(.*)$', r'\1',
+                                line))
+        elif re.match(r'\s*-f\s+', line):
+            pass
+        else:
+            requirements.append(line)
+
+    return requirements
+
+
+def parse_dependency_links(requirements_files=['requirements.txt',
+                                               'tools/pip-requires']):
+    dependency_links = []
+    for line in get_reqs_from_files(requirements_files):
+        if re.match(r'(\s*#)|(\s*$)', line):
+            continue
+        if re.match(r'\s*-[ef]\s+', line):
+            dependency_links.append(re.sub(r'\s*-[ef]\s+', '', line))
+    return dependency_links
+
+
+def write_requirements():
+    venv = os.environ.get('VIRTUAL_ENV', None)
+    if venv is not None:
+        with open("requirements.txt", "w") as req_file:
+            output = subprocess.Popen(["pip", "-E", venv, "freeze", "-l"],
+                                      stdout=subprocess.PIPE)
+            requirements = output.communicate()[0].strip()
+            req_file.write(requirements)