Stop auto-migrating projects (#912)

news/912.removal.md

@@ -0,0 +1 @@
+Stop auto-migrating projects from PDM 0.x format.

pdm/cli/actions.py

@@ -748,58 +748,6 @@ def print_pep582_command(ui: termui.UI, shell: str = "AUTO") -> None:
     ui.echo(result)
 
 
-def migrate_pyproject(project: Project) -> None:
-    """Migrate the legacy pyproject format to PEP 621"""
-
-    if project.pyproject and "project" in project.pyproject:
-        pyproject = project.pyproject
-        settings = {}
-        updated_fields = []
-        for field in ("includes", "excludes", "build", "package-dir"):
-            if field in pyproject["project"]:
-                updated_fields.append(field)
-                settings[field] = pyproject["project"].pop(field)
-        if "dev-dependencies" in pyproject["project"]:
-            if pyproject["project"]["dev-dependencies"]:
-                settings["dev-dependencies"] = {
-                    "dev": pyproject["project"]["dev-dependencies"]
-                }
-            del pyproject["project"]["dev-dependencies"]
-            updated_fields.append("dev-dependencies")
-        if updated_fields:
-            if "tool" not in pyproject or "pdm" not in pyproject["tool"]:
-                pyproject.setdefault("tool", {})["pdm"] = tomlkit.table()
-            pyproject["tool"]["pdm"].update(settings)
-            project.pyproject = pyproject
-            project.write_pyproject()
-            project.core.ui.echo(
-                f"{termui.yellow('[AUTO-MIGRATION]')} These fields are moved from "
-                f"[project] to [tool.pdm] table: {updated_fields}",
-                err=True,
-            )
-        return
-
-    if not project.pyproject_file.exists() or not FORMATS["legacy"].check_fingerprint(
-        project, project.pyproject_file
-    ):
-        return
-
-    project.core.ui.echo(
-        f"{termui.yellow('[AUTO-MIGRATION]')} Legacy pdm 0.x metadata detected, "
-        "migrating to PEP 621...",
-        err=True,
-    )
-    do_import(project, str(project.pyproject_file), "legacy")
-    project.core.ui.echo(
-        termui.green("pyproject.toml")
-        + termui.yellow(
-            " has been migrated to PEP 621 successfully. "
-            "Now you can safely delete the legacy metadata under [tool.pdm] table."
-        ),
-        err=True,
-    )
-
-
 def get_latest_version(project: Project) -> str | None:
     """Get the latest version of PDM from PyPI, cache for 7 days"""
     from pdm.utils import get_finder

pdm/core.py

@@ -13,7 +13,7 @@
 from resolvelib import Resolver
 
 from pdm import termui
-from pdm.cli.actions import check_update, migrate_pyproject, print_pep582_command
+from pdm.cli.actions import check_update, print_pep582_command
 from pdm.cli.commands.base import BaseCommand
 from pdm.cli.options import ignore_python_option, pep582_option, verbose_option
 from pdm.cli.utils import PdmFormatter
@@ -104,8 +104,6 @@ def ensure_project(
             )
             options.project = project
 
-        migrate_pyproject(options.project)
-
     def create_project(
         self, root_path: str | Path | None = None, is_global: bool = False
     ) -> Project:

tests/cli/test_build.py

@@ -142,16 +142,6 @@ def test_build_src_package_by_include(fixture_project):
     assert "my_package/data.json" in zip_names
 
 
-def test_build_legacy_package(fixture_project, invoke):
-    project = fixture_project("demo-legacy")
-    result = invoke(["build"], obj=project)
-    assert project.meta.name == "demo-module"
-    assert result.exit_code == 0
-    assert "demo-module-0.1.0/foo_module.py" in get_tarball_names(
-        project.root / "dist/demo-module-0.1.0.tar.gz"
-    )
-
-
 def test_build_with_config_settings(fixture_project):
     project = fixture_project("demo-src-package")
     actions.do_build(project, config_settings={"--plat-name": "win_amd64"})

tests/cli/test_others.py

@@ -326,13 +326,6 @@ def test_completion_command(invoke):
     assert "(completion)" in result.output
 
 
-def test_lock_legacy_project(invoke, fixture_project, repository):
-    project = fixture_project("demo-legacy")
-    result = invoke(["lock"], obj=project)
-    assert result.exit_code == 0
-    assert "urllib3" in project.locked_repository.all_candidates
-
-
 def test_lock_refresh(invoke, project, repository):
     project.add_dependencies({"requests": parse_requirement("requests")})
     result = invoke(["lock"], obj=project)