Custom sdist command extends from setuptools instead of distutils (#125)

* Custom sdist command extends from setuptools instead of distutils

* Update CHANGELOG.md

Co-authored-by: David Hewitt <1939362+davidhewitt@users.noreply.github.com>

Co-authored-by: David Hewitt <1939362+davidhewitt@users.noreply.github.com>

Author: messense

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Changelog
 
+## Unreleased
+### Fixed
+- Fix some files unexpectedly missing from `sdist` command output. [#125](https://github.com/PyO3/setuptools-rust/pull/125)
+
 ## 0.12.0 (2020-03-08)
 ### Packaging
 - Bump minimum Python version to Python 3.6.

setuptools_rust/setuptools_ext.py

@@ -5,7 +5,7 @@
 
 from setuptools.command.build_ext import build_ext
 from setuptools.command.install import install
-from distutils.command.sdist import sdist
+from setuptools.command.sdist import sdist
 import sys
 import subprocess
 
@@ -39,8 +39,7 @@ def initialize_options(self):
             super().initialize_options()
             self.vendor_crates = 0
 
-        def get_file_list(self):
-            super().get_file_list()
+        def make_distribution(self):
             if self.vendor_crates:
                 manifest_paths = []
                 for ext in self.distribution.rust_extensions:
@@ -76,7 +75,7 @@ def get_file_list(self):
                     # Check whether `.cargo/config`/`.cargo/config.toml` already exists
                     existing_cargo_config = None
                     for filename in (f".cargo{os.sep}config", f".cargo{os.sep}config.toml"):
-                        if filename in self.filelist.allfiles:
+                        if filename in self.filelist.files:
                             existing_cargo_config = filename
                             break
                     if existing_cargo_config:
@@ -89,6 +88,7 @@ def get_file_list(self):
                         f.write(cargo_config)
                     self.filelist.append(vendor_path)
                     self.filelist.append(cargo_config_path)
+            super().make_distribution()
     dist.cmdclass["sdist"] = sdist_rust_extension
 
     build_ext_base_class = dist.cmdclass.get('build_ext', build_ext)