Add support for `license_files` option in metadata

1 files changed, 18 insertions, 8 deletions

diff --git a/setuptools/command/sdist.py b/setuptools/command/sdist.py
index dc253981..24316640 100644
--- a/setuptools/command/sdist.py
+++ b/setuptools/command/sdist.py
@@ -200,10 +200,12 @@ class sdist(sdist_add_defaults, orig.sdist):
         manifest.close()
 
     def check_license(self):
-        """Checks if license_file' is configured and adds it to
-        'self.filelist' if the value contains a valid path.
+        """Checks if license_file' or 'license_files' is configured and adds any
+        valid paths to 'self.filelist'.
         """
 
+        files = set()
+
         opts = self.distribution.get_option_dict('metadata')
 
         # ignore the source of the value
@@ -211,11 +213,19 @@ class sdist(sdist_add_defaults, orig.sdist):
 
         if license_file is None:
             log.debug("'license_file' option was not specified")
-            return
+        else:
+            files.add(license_file)
 
-        if not os.path.exists(license_file):
-            log.warn("warning: Failed to find the configured license file '%s'",
-                    license_file)
-            return
+        try:
+            files.update(self.distribution.metadata.license_files)
+        except TypeError:
+            log.warn("warning: 'license_files' option is malformed")
+
+        for f in files:
+            if not os.path.exists(f):
+                log.warn(
+                    "warning: Failed to find the configured license file '%s'",
+                    f)
+                continue
 
-        self.filelist.append(license_file)
+            self.filelist.append(f)