1 files changed, 32 insertions, 0 deletions
diff --git a/setuptools/command/sdist.py b/setuptools/command/sdist.py
index a176f635..2fa3771a 100755
--- a/setuptools/command/sdist.py
+++ b/setuptools/command/sdist.py
@@ -262,7 +262,39 @@ class sdist(_sdist):
 
         self.get_finalized_command('egg_info').save_version_info(dest)
 
+    def _manifest_is_not_generated(self):
+        # check for special comment used in 2.7.1 and higher
+        if not os.path.isfile(self.manifest):
+            return False
 
+        fp = open(self.manifest, 'rbU')
+        try:
+            first_line = fp.readline()
+        finally:
+            fp.close()
+        return first_line != '# file GENERATED by distutils, do NOT edit\n'.encode()
+
+    def read_manifest(self):
+        """Read the manifest file (named by 'self.manifest') and use it to
+        fill in 'self.filelist', the list of files to include in the source
+        distribution.
+        """
+        log.info("reading manifest file '%s'", self.manifest)
+        manifest = open(self.manifest, 'rbU')
+        for line in manifest:
+            # The manifest must contain UTF-8. See #303.
+            if sys.version_info >= (3,):
+                try:
+                    line = line.decode('UTF-8')
+                except UnicodeDecodeError:
+                    log.warn("%r not UTF-8 decodable -- skipping" % line)
+                    continue
+            # ignore comments and blank lines
+            line = line.strip()
+            if line.startswith('#') or not line:
+                continue
+            self.filelist.append(line)
+        manifest.close()