PEP660 editable VCS dependencies not reinstalled correctly

pipenv/environment.py

@@ -743,6 +743,20 @@ def is_satisfied(self, req: InstallRequirement):
                     match.version, prereleases=True
                 )
             if req.link is None:
+                return True
+            elif req.editable and req.link.is_vcs:
+                # For editable VCS dependencies, check if the source directory exists
+                # This ensures we reinstall if the source checkout is missing
+                src_dir = os.path.join(os.getcwd(), "src")
+                if not os.path.exists(src_dir):
+                    return False
+
+                # If we have a specific package directory, check that too
+                if req.name:
+                    pkg_dir = os.path.join(src_dir, req.name)
+                    if not os.path.exists(pkg_dir):
+                        return False
+
                 return True
             elif req.editable and req.link.is_file:
                 requested_path = req.link.file_path

tests/integration/test_editable_vcs.py

@@ -0,0 +1,56 @@
+import os
+import shutil
+from pathlib import Path
+
+import pytest
+
+from pipenv.utils.processes import subprocess_run
+
+
+@pytest.mark.integration
+@pytest.mark.install
+@pytest.mark.editable
+@pytest.mark.vcs
+def test_editable_vcs_reinstall(pipenv_instance_private_pypi):
+    """Test that editable VCS dependencies are reinstalled when the source checkout is missing."""
+    with pipenv_instance_private_pypi() as p:
+        # Create a Pipfile with an editable VCS dependency
+        with open(p.pipfile_path, "w") as f:
+            f.write("""
+[[source]]
+url = "https://pypi.org/simple"
+verify_ssl = true
+name = "pypi"
+
+[packages]
+gunicorn = {git = "https://github.com/benoitc/gunicorn", ref = "23.0.0", editable = true}
+            """.strip())
+
+        # Install the dependency
+        c = p.pipenv("install")
+        assert c.returncode == 0, f"Failed to install: {c.stderr}"
+
+        # Verify the src directory was created
+        src_dir = Path(p.path) / "src"
+        assert src_dir.exists(), "src directory was not created"
+        assert any(src_dir.iterdir()), "src directory is empty"
+
+        # Import the package to verify it's installed correctly
+        c = p.pipenv("run python -c 'import gunicorn'")
+        assert c.returncode == 0, f"Failed to import gunicorn: {c.stderr}"
+
+        # Remove the src directory to simulate the issue
+        shutil.rmtree(src_dir)
+        assert not src_dir.exists(), "Failed to remove src directory"
+
+        # Run pipenv install again to see if it reinstalls the dependency
+        c = p.pipenv("install")
+        assert c.returncode == 0, f"Failed to reinstall: {c.stderr}"
+
+        # Verify the src directory was recreated
+        assert src_dir.exists(), "src directory was not recreated"
+        assert any(src_dir.iterdir()), "recreated src directory is empty"
+
+        # Import the package again to verify it's reinstalled correctly
+        c = p.pipenv("run python -c 'import gunicorn'")
+        assert c.returncode == 0, f"Failed to import gunicorn after reinstall: {c.stderr}"