pkg.utils.parse_requirements used in setup

renamed setup-->pkg because name collision

1 files changed, 42 insertions, 0 deletions

diff --git a/pkg/utils.py b/pkg/utils.py
new file mode 100644
index 00000000..52680ae5
--- /dev/null
+++ b/pkg/utils.py
@@ -0,0 +1,42 @@
+"""
+utils to help in the setup process
+"""
+import os
+import re
+import sys
+
+
+# gets reqs from the first matching file
+def get_reqs_from_files(reqfiles):
+    for reqfile in reqfiles:
+        if os.path.isfile(reqfile):
+            return open(reqfile, 'r').read().split('\n')
+
+
+def parse_requirements(reqfiles=['requirements.txt',
+                                 'requirements.pip',
+                                 'pkg/requirements.pip']):
+    requirements = []
+    for line in get_reqs_from_files(reqfiles):
+        # -e git://foo.bar/baz/master#egg=foobar
+        if re.match(r'\s*-e\s+', line):
+            requirements.append(re.sub(r'\s*-e\s+.*#egg=(.*)$', r'\1',
+                                line))
+        # http://foo.bar/baz/foobar/zipball/master#egg=foobar
+        elif re.match(r'\s*https?:', line):
+            requirements.append(re.sub(r'\s*https?:.*#egg=(.*)$', r'\1',
+                                line))
+        # -f lines are for index locations, and don't get used here
+        elif re.match(r'\s*-f\s+', line):
+            pass
+
+        # argparse is part of the standard library starting with 2.7
+        # adding it to the requirements list screws distro installs
+        elif line == 'argparse' and sys.version_info >= (2, 7):
+            pass
+        else:
+            if line != '':
+                requirements.append(line)
+
+    #print 'REQUIREMENTS', requirements
+    return requirements