Feature: Support Adding explicit package entries using option in monas new

src/monas/commands/new.py

@@ -15,10 +15,23 @@
 @click.command()
 @click.argument("package", required=True)
 @click.argument("location", required=False)
+@click.option(
+    "-e",
+    "--explicit-package-entry",
+    is_flag=True,
+    default=False,
+    help="If specified, an explicit package entry "
+    + "will be added to the list of packages",
+)
 @pass_config
 @pass_context
 def new(
-    ctx: click.Context, config: Config, *, package: str, location: str | None = None
+    ctx: click.Context,
+    config: Config,
+    *,
+    package: str,
+    location: str | None = None,
+    explicit_package_entry: bool,
 ):
     """Create a new <package> under <location>.
 
@@ -67,4 +80,7 @@ def new(
     info("Creating project files")
     PyPackage.create(config, package_path, inputs)
 
-    config.add_package_path(parent_dir)
+    if explicit_package_entry:
+        config.add_explicit_package_path(package_path)
+    else:
+        config.add_package_path(parent_dir)

src/monas/config.py

@@ -80,7 +80,12 @@ def python_version(self) -> str:
 
     @property
     def default_package_dir(self) -> Path:
-        """Default directory to find or add mono-repo packages."""
+        """
+        Default directory to find or add mono-repo packages.
+        If no directory is specified, will fallback to project root path
+        """
+        if len(self.package_paths) == 0:
+            return self.path
         first_pkg_path = self.package_paths[0]
         if "*" or "?" in first_pkg_path.name:
             return first_pkg_path.parent
@@ -96,6 +101,17 @@ def add_package_path(self, path: Path) -> None:
         self._tool.setdefault("packages", []).append(relative_path.as_posix())
         TOMLFile(self.path / "pyproject.toml").write(self._pyproject)
 
+    def add_explicit_package_path(self, package_path: Path) -> None:
+        relative_path = (
+            package_path.relative_to(self.path)
+            if package_path.is_absolute()
+            else package_path
+        )
+        if relative_path in self.package_paths:
+            return
+        self._tool.setdefault("packages", []).append(relative_path.as_posix())
+        TOMLFile(self.path / "pyproject.toml").write(self._pyproject)
+
     def iter_packages(self) -> Iterable[PyPackage]:
         """Iterate over the packages in the monorepo"""
         from monas.project import PyPackage

tests/cli/test_new.py

@@ -149,3 +149,30 @@ def test_new_package_under_non_default_location(project, cli_run, python_version
 python-version = "{python_version}"
 """
     )
+
+
+@pytest.mark.usefixtures("mock_input")
+@pytest.mark.parametrize("backend", ["setuptools(pyproject.toml)"])
+def test_new_package_with_explicit_path(project, cli_run, python_version):
+    """
+    Create a new project with explicit path entry
+    """
+    cli_run(["new", "-e", "first", "."], cwd=project, input="\n")
+    cli_run(["new", "-e", "second", "."], cwd=project, input="\n")
+    cli_run(["new", "-e", "third", "nested"], cwd=project, input="\n")
+    packages = [
+        ("first", project.joinpath("first")),
+        ("second", project.joinpath("second")),
+        ("third", project.joinpath("nested/third")),
+    ]
+    for _package_name, package_path in packages:
+        assert package_path.is_dir()
+    assert (
+        project.joinpath("pyproject.toml").read_text()
+        == f"""\
+[tool.monas]
+packages = ["packages/*", "first", "second", "nested/third"]
+version = "0.0.0"
+python-version = "{python_version}"
+"""
+    )