feat(poly build): setup and teardown for building, when using Maturin or tools without hook or plugin support

bases/polylith/cli/build.py

@@ -0,0 +1,89 @@
+from pathlib import Path
+
+import tomlkit
+from polylith import building, repo, toml
+from polylith.cli import options
+from typer import Exit, Typer
+from typing_extensions import Annotated
+
+app = Typer()
+
+
+def get_work_dir(root: Path, directory: str) -> Path:
+    work_dir = building.get_work_dir({})
+    work_path = Path(directory) / work_dir if directory else work_dir
+
+    return root / work_path
+
+
+def get_build_dir(root: Path, directory: str) -> Path:
+    return root / Path(directory) if directory else root
+
+
+def get_project_data(build_dir: Path) -> tomlkit.TOMLDocument:
+    fullpath = build_dir / repo.default_toml
+
+    if not fullpath.exists():
+        raise Exit(code=1)
+
+    return toml.read_toml_document(fullpath)
+
+
+@app.command("setup")
+def setup_command(directory: Annotated[str, options.directory] = ""):
+    """Prepare a project before building a wheel or a source distribution (sdist).
+    Run it before the build command of your Package & Dependency Management tool.
+
+    """
+    root = Path.cwd()
+    build_dir = get_build_dir(root, directory)
+    print(f"Build directory: {build_dir}")
+
+    data = get_project_data(build_dir)
+    bricks = toml.get_project_packages_from_polylith_section(data)
+
+    if not bricks:
+        print("No bricks found.")
+        return
+
+    bricks_with_paths = {build_dir / k: v for k, v in bricks.items()}
+    custom_top_ns = toml.get_custom_top_namespace_from_polylith_section(data)
+
+    if not custom_top_ns:
+        building.copy_bricks_as_is(bricks_with_paths, build_dir)
+    else:
+        work_dir = get_work_dir(root, directory)
+        print(f"Using temporary working directory: {work_dir}")
+
+        rewritten = building.copy_and_rewrite_bricks(
+            bricks_with_paths, custom_top_ns, work_dir, build_dir
+        )
+
+        for item in rewritten:
+            print(f"Updated {item} with new top namespace for local imports.")
+
+
+@app.command("teardown")
+def teardown_command(directory: Annotated[str, options.directory] = ""):
+    """Clean up temporary directories. Run it after the build command of your Package & Dependency Management tool."""
+    root = Path.cwd()
+
+    work_dir = get_work_dir(root, directory)
+    build_dir = get_build_dir(root, directory)
+
+    data = get_project_data(build_dir)
+    bricks = toml.get_project_packages_from_polylith_section(data)
+
+    if not bricks:
+        return
+
+    destination_dir = building.calculate_destination_dir(data)
+
+    if work_dir.exists():
+        print(f"Removing temporary working directory: {work_dir}")
+        building.cleanup(work_dir)
+
+    if destination_dir:
+        destination_path = build_dir / destination_dir
+        print(f"Removing bricks path used during build: {destination_path}")
+        building.cleanup(destination_path)

bases/polylith/cli/core.py

@@ -2,7 +2,7 @@
 from typing import List, Union
 
 from polylith import commands, configuration, info, repo
-from polylith.cli import create, options
+from polylith.cli import build, create, options
 from typer import Exit, Option, Typer
 from typing_extensions import Annotated
 
@@ -15,6 +15,13 @@
 )
 
 
+app.add_typer(
+    build.app,
+    name="build",
+    help="For Package & Dependency Management tools without support for plugins or build hooks.",
+)
+
+
 def filtered_projects_data(
     projects_data: List[dict], directory: Union[str, None]
 ) -> List[dict]:

components/polylith/building/__init__.py

@@ -0,0 +1,10 @@
+from polylith.building.core import cleanup, copy_and_rewrite_bricks, copy_bricks_as_is
+from polylith.building.paths import calculate_destination_dir, get_work_dir
+
+__all__ = [
+    "calculate_destination_dir",
+    "cleanup",
+    "copy_and_rewrite_bricks",
+    "copy_bricks_as_is",
+    "get_work_dir",
+]

components/polylith/building/core.py

@@ -0,0 +1,47 @@
+import operator
+import shutil
+from functools import reduce
+from pathlib import Path
+from typing import List
+
+from polylith import parsing
+
+
+def copy_bricks_as_is(bricks: dict, build_dir: Path) -> None:
+    for source, brick in bricks.items():
+        parsing.copy_brick(source, brick, build_dir)
+
+
+def copy_and_rewrite(source: str, brick: str, options: dict) -> List[str]:
+    work_dir = options["work_dir"]
+    build_dir = options["build_dir"]
+    top_ns = options["top_ns"]
+    ns = options["ns"]
+
+    path = parsing.copy_brick(source, brick, work_dir)
+    rewritten = parsing.rewrite_modules(path, ns, top_ns)
+
+    destination_dir = build_dir / top_ns
+    parsing.copy_brick(path.as_posix(), brick, destination_dir)
+
+    return rewritten
+
+
+def copy_and_rewrite_bricks(
+    bricks: dict, top_ns: str, work_dir: Path, build_dir: Path
+) -> List[str]:
+    ns = parsing.parse_brick_namespace_from_path(bricks)
+
+    options = {"ns": ns, "top_ns": top_ns, "work_dir": work_dir, "build_dir": build_dir}
+
+    res = [copy_and_rewrite(source, brick, options) for source, brick in bricks.items()]
+    flattened: List[str] = reduce(operator.iadd, res, [])
+
+    return sorted(flattened)
+
+
+def cleanup(work_dir: Path) -> None:
+    if not work_dir.exists() or not work_dir.is_dir():
+        return
+
+    shutil.rmtree(work_dir.as_posix())

components/polylith/building/paths.py

@@ -0,0 +1,32 @@
+from pathlib import Path
+from typing import Union
+
+from polylith import toml
+
+
+def get_work_dir(options: dict) -> Path:
+    work_dir = options.get("work-dir", ".polylith_tmp")
+
+    return Path(work_dir)
+
+
+def calculate_root_dir(bricks: dict) -> Union[str, None]:
+    brick_path = next((v for v in bricks.values()), None)
+
+    return str.split(brick_path, "/")[0] if brick_path else None
+
+
+def calculate_destination_dir(data: dict) -> Union[Path, None]:
+    bricks = toml.get_project_packages_from_polylith_section(data)
+
+    if not bricks:
+        return None
+
+    custom_top_ns = toml.get_custom_top_namespace_from_polylith_section(data)
+
+    if custom_top_ns:
+        return Path(custom_top_ns)
+
+    root = calculate_root_dir(bricks)
+
+    return Path(root) if root else None

components/polylith/hatch/core.py

@@ -1,13 +1,11 @@
 from pathlib import Path
 from typing import Union
 
-from polylith import toml
+from polylith import building, toml
 
 
 def get_work_dir(config: dict) -> Path:
-    work_dir = config.get("work-dir", ".polylith_tmp")
-
-    return Path(work_dir)
+    return building.get_work_dir(config)
 
 
 def get_top_namespace(pyproject: dict, config: dict) -> Union[str, None]:

components/polylith/pdm/core.py

@@ -1,40 +1,24 @@
-import shutil
 from pathlib import Path
 
-from polylith import parsing
+from polylith import building
 
 
 def get_work_dir(config: dict) -> Path:
     build_config = config.get("tool", {}).get("pdm", {}).get("build", {})
 
-    work_dir = build_config.get("work-dir", ".polylith_tmp")
-
-    return Path(work_dir)
+    return building.get_work_dir(build_config)
 
 
 def copy_bricks_as_is(bricks: dict, build_dir: Path) -> None:
-    for source, brick in bricks.items():
-        parsing.copy_brick(source, brick, build_dir)
+    building.copy_bricks_as_is(bricks, build_dir)
 
 
-def copy_and_rewrite_bricks(
+def copy_and_rewrite(
     bricks: dict, top_ns: str, work_dir: Path, build_dir: Path
 ) -> None:
-    ns = parsing.parse_brick_namespace_from_path(bricks)
-
-    for source, brick in bricks.items():
-        path = parsing.copy_brick(source, brick, work_dir)
-        rewritten_bricks = parsing.rewrite_modules(path, ns, top_ns)
-
-        destination_dir = build_dir / top_ns
-        parsing.copy_brick(path.as_posix(), brick, destination_dir)
-
-        for item in rewritten_bricks:
-            print(f"Updated {item} with new top namespace for local imports.")
-
+    rewritten = building.copy_and_rewrite_bricks(bricks, top_ns, work_dir, build_dir)
 
-def cleanup(work_dir: Path) -> None:
-    if not work_dir.exists() or not work_dir.is_dir():
-        return
+    for item in rewritten:
+        print(f"Updated {item} with new top namespace for local imports.")
 
-    shutil.rmtree(work_dir.as_posix())
+    building.cleanup(work_dir)

components/polylith/pdm/hooks/bricks.py

@@ -17,5 +17,4 @@ def build_initialize(root: Path, config_data: dict, build_dir: Path) -> None:
     if not top_ns:
         core.copy_bricks_as_is(bricks, build_dir)
     else:
-        core.copy_and_rewrite_bricks(bricks, top_ns, work_dir, build_dir)
-        core.cleanup(work_dir)
+        core.copy_and_rewrite(bricks, top_ns, work_dir, build_dir)