Automatically add LICENSE file to built packages

CHANGELOG.md

@@ -23,6 +23,7 @@
 - Improved support for private repositories.
 - Expanded version constraints now keep the original version's precision.
 - The lock file hash no longer use the project's name and version.
+- The `LICENSE` file, or similar, is now automatically added to the built packages.
 
 ### Fixed
 

docs/docs/faq.md

+# Third Party Libraries
+
+Poetry 

poetry/masonry/builders/builder.py

@@ -103,6 +103,16 @@ class Builder(object):
         )
         to_add.append(Path('pyproject.toml'))
 
+        # If a license file exists, add it
+        for license_file in self._path.glob('LICENSE*'):
+            self._io.writeln(
+                ' - Adding: <comment>{}</comment>'.format(
+                    license_file.relative_to(self._path)
+                ),
+                verbosity=self._io.VERBOSITY_VERY_VERBOSE
+            )
+            to_add.append(license_file.relative_to(self._path))
+
         # If a README is specificed we need to include it
         # to avoid errors
         if 'readme' in self._poetry.local_config:

tests/masonry/builders/fixtures/complete/LICENSE

+Copyright (c) 2018 Sébastien Eustace
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

tests/masonry/builders/test_sdist.py

@@ -156,6 +156,7 @@ def test_find_files_to_add():
     result = builder.find_files_to_add()
 
     assert result == [
+        Path('LICENSE'),
         Path('README.rst'),
         Path('my_package/__init__.py'),
         Path('my_package/data1/test.json'),
@@ -176,6 +177,10 @@ def test_package():
 
     assert sdist.exists()
 
+    tar = tarfile.open(str(sdist), 'r')
+
+    assert 'my-package-1.2.3/LICENSE' in tar.getnames()
+
 
 def test_module():
     poetry = Poetry.create(project('module1'))