pip_license: quick hack script to add license info to requirements.txt

Change-Id: Ic41772cb32cd53d405b16880bd43cf89307b4716
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

diff --git a/tests/ci/pip_license.py b/tests/ci/pip_license.py
new file mode 100644 (file)
index 0000000..e512db7
--- /dev/null
+++ b/tests/ci/pip_license.py
@@ -0,0 +1,80 @@
+# Copyright (c) 2017 Intel Corporation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import pkg_resources
+import pip.req
+import sys
+
+
+def get_pkg_license(pkg):
+    """
+    Given a package reference (as from requirements.txt),
+    return license listed in package metadata.
+    NOTE: This function does no error checking and is for
+    demonstration purposes only.
+
+    can-pip-or-setuptools-distribute-etc-list-the-license-used-by-each-install
+    https://stackoverflow.com/a/19086260
+    https://stackoverflow.com/users/308066/dkamins
+    """
+    try:
+        pkgs = pkg_resources.working_set.resolve(pkg, replace_conflicting=True)
+        # pkgs = pkg_resources.require(pkg)
+    except pkg_resources.DistributionNotFound as e:
+        sys.stderr.write("%s\n" % e)
+        return None
+    pkg = pkgs[0]
+    try:
+        info = pkg.get_metadata_lines('METADATA')
+    except IOError:
+        try:
+            info = pkg.get_metadata_lines('PKG-INFO')
+        except IOError:
+            info = []
+    licenses = []
+    for line in info:
+        if "License:" in line:
+            lic = line.split(': ', 1)[1]
+            if "UNKNOWN" not in lic:
+                # try this type first
+                licenses.append(lic)
+                # break
+        elif "License ::" in line:
+            licenses.append(" ".join(line.split(':: ')[1:3]))
+    return "; ".join(licenses)
+
+# quick and dirty hack
+
+
+def main():
+
+    reqs = list(pip.req.parse_requirements("../../requirements.txt", session='hack'))
+    lines = []
+    for req in reqs:
+        pkg = pkg_resources.parse_requirements([req.name])
+        lic = get_pkg_license(pkg)
+        markers = req.markers
+        if markers:
+            mark = "; " + str(req.markers)
+        else:
+            mark = ""
+        line = "{0}{1}\t\t# {2}\n".format(req.req, mark, lic)
+        sys.stdout.write(line)
+        lines.append(line)
+    with open("requirements.txt", "w") as rrr:
+        rrr.writelines(lines)
+
+
+if __name__ == '__main__':
+    main()