layouts: add readme to pyproject.toml on creation

Relates-to: #280

Co-authored-by: Arun Babu Neelicattu <arun.neelicattu@gmail.com>

poetry/layouts/layout.py

@@ -22,6 +22,7 @@
 description = ""
 authors = []
 license = ""
+readme = ""
 packages = []
 
 [tool.poetry.dependencies]
@@ -34,6 +35,8 @@
 
 
 class Layout(object):
+    ACCEPTED_README_FORMATS = {"md", "rst"}
+
     def __init__(
         self,
         project,
@@ -53,7 +56,15 @@ def __init__(
         self._package_name = ".".join(self._package_path_relative.parts)
         self._version = version
         self._description = description
-        self._readme_format = readme_format
+
+        self._readme_format = readme_format.lower()
+        if self._readme_format not in self.ACCEPTED_README_FORMATS:
+            raise ValueError(
+                "Invalid readme format '{}', use one of {}.".format(
+                    readme_format, ", ".join(self.ACCEPTED_README_FORMATS)
+                )
+            )
+
         self._license = license
         self._python = python
         self._dependencies = dependencies or {}
@@ -115,6 +126,7 @@ def generate_poetry_content(self):
         else:
             poetry_content.remove("license")
 
+        poetry_content["readme"] = "README.{}".format(self._readme_format)
         packages = self.get_package_include()
         if packages:
             poetry_content["packages"].append(packages)
@@ -154,13 +166,10 @@ def _create_default(self, path):
         package_init = package_path / "__init__.py"
         package_init.touch()
 
-    def _create_readme(self, path):
-        if self._readme_format == "rst":
-            readme_file = path / "README.rst"
-        else:
-            readme_file = path / "README.md"
-
+    def _create_readme(self, path):  # type: (Path) -> Path
+        readme_file = path.joinpath("README.{}".format(self._readme_format))
         readme_file.touch()
+        return readme_file
 
     @staticmethod
     def _create_tests(path):

tests/console/commands/test_init.py

@@ -35,6 +35,7 @@ def test_basic_interactive(app, mocker, poetry):
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -87,6 +88,7 @@ def test_interactive_with_dependencies(app, repo, mocker, poetry):
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -128,6 +130,7 @@ def test_empty_license(app, mocker, poetry):
 version = "1.2.3"
 description = ""
 authors = ["Your Name <you@example.com>"]
+readme = "README.md"
 packages = [{{include = "my_package"}}]
 
 [tool.poetry.dependencies]
@@ -180,6 +183,7 @@ def test_interactive_with_git_dependencies(
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -233,6 +237,7 @@ def test_interactive_with_git_dependencies_with_reference(
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -286,6 +291,7 @@ def test_interactive_with_git_dependencies_and_other_name(
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -339,6 +345,7 @@ def test_interactive_with_directory_dependency(
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -392,6 +399,7 @@ def test_interactive_with_directory_dependency_and_other_name(
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -443,6 +451,7 @@ def test_interactive_with_file_dependency(app, repo, mocker, poetry):
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]
@@ -484,6 +493,7 @@ def test_python_option(app, mocker, poetry):
 description = "This is a description"
 authors = ["Your Name <you@example.com>"]
 license = "MIT"
+readme = "README.md"
 packages = [{include = "my_package"}]
 
 [tool.poetry.dependencies]