scanpypi: write every license file once

On some cases, when the package contains multiple license files
and some of them from the same type, the scanpypi script will write
the same license type more than once under _LICENSE.
Hence, before creating the _LICENSE variable, we'll remove every
possible duplication.

Signed-off-by: Asaf Kahlon <asafka7@gmail.com>
Reviewed-by: Yegor Yefremov <yegorslists@googlemail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

diff --git a/utils/scanpypi b/utils/scanpypi
index 55b3d1e61c1a27afc2abbebc79336b72b0e8f65a..b48eda49aa210d179d49f69cf8c4ece6b45afd9c 100755 (executable)
--- a/utils/scanpypi
+++ b/utils/scanpypi
@@ -461,6 +461,7 @@ class BuildrootPackage():
                       ' likely wrong, please change it if need be'.format(
                           license=', '.join(licenses)))
                 licenses = [self.metadata['info']['license']]
+            licenses = set(licenses)
             license_line = '{name}_LICENSE = {license}\n'.format(
                 name=self.mk_name,
                 license=', '.join(licenses))
@@ -473,6 +474,7 @@ class BuildrootPackage():
                     license_names.append(match.license.id)
                 else:
                     license_names.append("FIXME: license id couldn't be detected")
+            license_names = set(license_names)
 
             if len(license_names) > 0:
                 license_line = ('{name}_LICENSE ='