From ca0760af2071c333cda28d18279db95455ffa2de Mon Sep 17 00:00:00 2001
From: Deniz Taneli <7292227+dtaneli@users.noreply.github.com>
Date: Sat, 27 Oct 2018 13:19:22 +0100
Subject: Setuptools will install licenses if included in setup.cfg

Addressing #357

`python setup.py sdist` now includes the license file if `license_file`
is included in `setup.cfg` unless it is explicitly excluded in `MANIFEST.in`.

Co-Authored-By: Poyzan Nur Taneli <31743851+ptaneli@users.noreply.github.com>
---
 setuptools/command/egg_info.py |  1 +
 setuptools/command/sdist.py    | 25 +++++++++++++++++++++++++
 2 files changed, 26 insertions(+)

(limited to 'setuptools/command')

diff --git a/setuptools/command/egg_info.py b/setuptools/command/egg_info.py
index bd116e1f..93100ab9 100644
--- a/setuptools/command/egg_info.py
+++ b/setuptools/command/egg_info.py
@@ -568,6 +568,7 @@ class manifest_maker(sdist):
 
     def add_defaults(self):
         sdist.add_defaults(self)
+        self.check_license()
         self.filelist.append(self.template)
         self.filelist.append(self.manifest)
         rcfiles = list(walk_revctrl())
diff --git a/setuptools/command/sdist.py b/setuptools/command/sdist.py
index bcfae4d8..a1b20733 100644
--- a/setuptools/command/sdist.py
+++ b/setuptools/command/sdist.py
@@ -6,6 +6,7 @@ import io
 import contextlib
 
 from setuptools.extern import six
+from setuptools.extern.six.moves import configparser
 
 from .py36compat import sdist_add_defaults
 
@@ -198,3 +199,27 @@ class sdist(sdist_add_defaults, orig.sdist):
                 continue
             self.filelist.append(line)
         manifest.close()
+
+    def check_license(self):
+        """Read the setup configuration file ('setup.cfg') and use it to find
+        if a license is defined with the 'license_file' attribute.
+        If the license is declared and exists, it will be added to
+        'self.filelist'.
+        """
+
+        cfg_file = 'setup.cfg'
+        log.debug("Reading configuration from %s", cfg_file)
+        parser = configparser.RawConfigParser()
+        parser.read(cfg_file)
+        try:
+            license_file = parser.get('metadata', 'license_file')
+
+            if not os.path.exists(license_file):
+                log.warn("warning: Failed to find license file '%s' in setup.cfg",
+                        license_file)
+                return
+
+            self.filelist.append(license_file)
+        except configparser.Error:
+            log.debug("license_file attribute is not defined in setup.cfg")
+            return
-- 
cgit v1.2.1