sort package name in extras to make it reproducible

src/poetry/core/packages/dependency.py

@@ -253,7 +253,7 @@ def base_pep_508_name(self) -> str:
         requirement = self.pretty_name
 
         if self.extras:
-            extras = ",".join(self.extras)
+            extras = ",".join(sorted(self.extras))
             requirement += f"[{extras}]"
 
         if isinstance(self.constraint, VersionUnion):

src/poetry/core/packages/directory_dependency.py

@@ -119,7 +119,7 @@ def base_pep_508_name(self) -> str:
         requirement = self.pretty_name
 
         if self.extras:
-            extras = ",".join(self.extras)
+            extras = ",".join(sorted(self.extras))
             requirement += f"[{extras}]"
 
         path = path_to_url(self.path) if self.path.is_absolute() else self.path

src/poetry/core/packages/file_dependency.py

@@ -105,7 +105,7 @@ def base_pep_508_name(self) -> str:
         requirement = self.pretty_name
 
         if self.extras:
-            extras = ",".join(self.extras)
+            extras = ",".join(sorted(self.extras))
             requirement += f"[{extras}]"
 
         path = path_to_url(self.path) if self.path.is_absolute() else self.path

src/poetry/core/packages/url_dependency.py

@@ -46,7 +46,7 @@ def base_pep_508_name(self) -> str:
         requirement = self.pretty_name
 
         if self.extras:
-            extras = ",".join(self.extras)
+            extras = ",".join(sorted(self.extras))
             requirement += f"[{extras}]"
 
         requirement += f" @ {self._url}"

src/poetry/core/packages/vcs_dependency.py

@@ -110,7 +110,7 @@ def base_pep_508_name(self) -> str:
         parsed_url = git.ParsedUrl.parse(self._source)
 
         if self.extras:
-            extras = ",".join(self.extras)
+            extras = ",".join(sorted(self.extras))
             requirement += f"[{extras}]"
 
         if parsed_url.protocol is not None:

tests/packages/test_dependency.py

@@ -142,14 +142,14 @@ def test_to_pep_508_in_extras():
 
 def test_to_pep_508_in_extras_parsed():
     dependency = Dependency.create_from_pep_508(
-        'foo[bar] (>=1.23,<2.0) ; extra == "baz"'
+        'foo[baz,bar] (>=1.23,<2.0) ; extra == "baz"'
     )
 
     result = dependency.to_pep_508()
-    assert result == 'foo[bar] (>=1.23,<2.0); extra == "baz"'
+    assert result == 'foo[bar,baz] (>=1.23,<2.0); extra == "baz"'
 
     result = dependency.to_pep_508(with_extras=False)
-    assert result == "foo[bar] (>=1.23,<2.0)"
+    assert result == "foo[bar,baz] (>=1.23,<2.0)"
 
 
 def test_to_pep_508_with_single_version_excluded():

tests/packages/test_directory_dependency.py

@@ -61,3 +61,14 @@ def test_directory_dependency_pep_508_local_relative():
 
     requirement = f"demo @ {path}"
     _test_directory_dependency_pep_508("demo", path, requirement)
+
+
+def test_directory_dependency_pep_508_extras():
+    path = (
+        Path(__file__).parent.parent
+        / "fixtures"
+        / "project_with_multi_constraints_dependency"
+    )
+    requirement = f"demo[foo,bar] @ file://{path.as_posix()}"
+    requirement_expected = f"demo[bar,foo] @ file://{path.as_posix()}"
+    _test_directory_dependency_pep_508("demo", path, requirement, requirement_expected)

tests/packages/test_file_dependency.py

@@ -169,3 +169,17 @@ def test_relative_file_dependency_to_pep_508_with_marker(mocker: "MockerFixture"
         requirement,
         marker=SingleMarker("sys.platform", "linux"),
     )
+
+
+def test_file_dependency_pep_508_extras(mocker: "MockerFixture"):
+    wheel = "demo-0.1.0-py2.py3-none-any.whl"
+
+    rel_path = Path("..") / "fixtures" / "distributions" / wheel
+    requirement = f'demo[foo,bar] @ {rel_path.as_posix()} ; sys_platform == "linux"'
+    _test_file_dependency_pep_508(
+        mocker,
+        "demo",
+        rel_path,
+        requirement,
+        f'demo[bar,foo] @ {rel_path.as_posix()} ; sys_platform == "linux"',
+    )

tests/packages/test_url_dependency.py

@@ -15,6 +15,20 @@ def test_to_pep_508():
     assert expected == dependency.to_pep_508()
 
 
+def test_to_pep_508_with_extras():
+    dependency = URLDependency(
+        "pytorch",
+        "https://download.pytorch.org/whl/cpu/torch-1.5.1%2Bcpu-cp38-cp38-linux_x86_64.whl",
+        extras=["foo", "bar"],
+    )
+
+    expected = (
+        "pytorch[bar,foo] @"
+        " https://download.pytorch.org/whl/cpu/torch-1.5.1%2Bcpu-cp38-cp38-linux_x86_64.whl"
+    )
+    assert expected == dependency.to_pep_508()
+
+
 def test_to_pep_508_with_marker():
     dependency = URLDependency(
         "pytorch",

tests/packages/test_vcs_dependency.py

@@ -25,10 +25,13 @@ def test_to_pep_508_ssh():
 
 def test_to_pep_508_with_extras():
     dependency = VCSDependency(
-        "poetry", "git", "https://github.com/python-poetry/poetry.git", extras=["foo"]
+        "poetry",
+        "git",
+        "https://github.com/python-poetry/poetry.git",
+        extras=["foo", "bar"],
     )
 
-    expected = "poetry[foo] @ git+https://github.com/python-poetry/poetry.git"
+    expected = "poetry[bar,foo] @ git+https://github.com/python-poetry/poetry.git"
 
     assert expected == dependency.to_pep_508()