Migrate to hatch

.flake8

@@ -0,0 +1,16 @@
+[flake8]
+max-line-length=200
+# Ignore style and complexity
+# E: style errors
+# W: style warnings
+# F401: module imported but unused
+# F811: redefinition of unused `name` from line `N`
+# F841: local variable assigned but never used
+ignore = E, C, W, F401, F403, F811, F841, E402, I100, I101, D400
+exclude =
+    jupyter-resource-usage/tests,
+    helm-chart,
+    hooks,
+    setup.py,
+    statuspage,
+    versioneer.py

jupyter_resource_usage/__init__.py

@@ -1,16 +1,11 @@
-import json
 from pathlib import Path
 
 from ._version import __version__
 from .server_extension import load_jupyter_server_extension
 
-HERE = Path(__file__).parent.resolve()
-
-data = json.loads((HERE / "labextension" / "package.json").read_text())
-
 
 def _jupyter_labextension_paths():
-    return [{"src": "labextension", "dest": data["name"]}]
+    return [{"src": "labextension", "dest": "@jupyter-server/resource-usage"}]
 
 
 def _jupyter_server_extension_points():

pyproject.toml

@@ -1,20 +1,104 @@
 [build-system]
-requires = ["jupyter_packaging~=0.10", "jupyterlab~=3.0"]
-build-backend = "jupyter_packaging.build_api"
+requires = [
+    "hatchling",
+    "jupyterlab~=3.0",
+]
+build-backend = "hatchling.build"
 
-[license]
-file="LICENSE"
+[project]
+name = "jupyter-resource-usage"
+description = "Jupyter Extension to show resource usage"
+readme = "README.md"
+requires-python = ">=3.7"
+authors = [
+    { name = "Jupyter Development Team" },
+]
+keywords = [
+    "IPython",
+    "Jupyter",
+    "JupyterLab",
+]
+classifiers = [
+    "Framework :: Jupyter",
+    "Framework :: Jupyter :: JupyterLab",
+    "Framework :: Jupyter :: JupyterLab :: 3",
+    "Framework :: Jupyter :: JupyterLab :: Extensions",
+    "Framework :: Jupyter :: JupyterLab :: Extensions :: Prebuilt",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: BSD License",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.7",
+    "Programming Language :: Python :: 3.8",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+]
+dependencies = [
+    "jupyter_server>=1.0",
+    "prometheus_client",
+    "psutil~=5.6",
+]
+dynamic = ["version"]
 
-[tool.jupyter-packaging.options]
-skip-if-exists = ["jupyter_resource_usage/labextension/static/style.js"]
-ensured-targets = ["jupyter_resource_usage/labextension/static/style.js", "jupyter_resource_usage/labextension/package.json"]
+[project.license]
+file = "LICENSE"
 
-[tool.jupyter-packaging.builder]
-factory = "jupyter_packaging.npm_builder"
+[project.optional-dependencies]
+dev = [
+    "autopep8",
+    "black",
+    "flake8",
+    "mock",
+    "pytest",
+    "pytest-cov>=2.6.1",
+]
 
-[tool.jupyter-packaging.build-args]
+[project.urls]
+Homepage = "https://github.com/jupyter-server/jupyter-resource-usage"
+
+[tool.hatch.build.targets.wheel.shared-data]
+"jupyter_resource_usage/static" = "share/jupyter/nbextensions/jupyter_resource_usage"
+"jupyter_resource_usage/labextension/package.json" = "share/jupyter/labextensions/@jupyter-server/resource-usage/package.json"
+"jupyter_resource_usage/labextension/static" = "share/jupyter/labextensions/@jupyter-server/resource-usage/static"
+"install.json" = "share/jupyter/labextensions/@jupyter-server/resource-usage/install.json"
+"jupyter-config/jupyter_server_config.d" = "etc/jupyter/jupyter_server_config.d"
+"jupyter-config/jupyter_notebook_config.d" = "etc/jupyter/jupyter_notebook_config.d"
+"jupyter-config/nbconfig/notebook.d" = "etc/jupyter/nbconfig/notebook.d"
+
+[tool.hatch.version]
+path = "jupyter_resource_usage/_version.py"
+
+[tool.hatch.build.targets.sdist]
+artifacts = ["jupyter_resource_usage/labextension"]
+exclude = [".github", "binder"]
+
+[tool.hatch.build.hooks.jupyter-builder]
+dependencies = [
+    "hatch-jupyter-builder>=0.8.2",
+]
+build-function = "hatch_jupyter_builder.npm_builder"
+ensured-targets = [
+    "jupyter_resource_usage/labextension/static/style.js",
+    "jupyter_resource_usage/labextension/package.json",
+]
+skip-if-exists = [
+    "jupyter_resource_usage/labextension/static/style.js",
+]
+
+[tool.hatch.build.hooks.jupyter-builder.editable-build-kwargs]
+build_cmd = "build:prod"
+npm = [
+    "jlpm",
+]
+force = true
+
+[tool.hatch.build.hooks.jupyter-builder.build-kwargs]
 build_cmd = "build:prod"
-npm = ["jlpm"]
+npm = [
+    "jlpm",
+]
 source_dir = "packages/labextension"
 build_dir = "jupyter_resource_usage/labextension"
 
@@ -44,7 +128,12 @@ name = "release"
 default = ""
 
 [tool.jupyter-releaser.hooks]
-before-build-npm = ["python -m pip install jupyterlab~=3.0", "jlpm", "jlpm clean", "jlpm build:prod"]
+before-build-npm = [
+    "python -m pip install jupyterlab~=3.0",
+    "jlpm",
+    "jlpm clean",
+    "jlpm build:prod",
+]
 
-[tool.check-manifest]
-ignore = ["binder/**", "packages/**", "*.json", "*.png", "yarn.lock", ".*", "jupyter_resource_usage/labextension/**", "jupyter_resource_usage/static/**"]
+[tool.check-wheel-contents]
+ignore = ["W002", "W004"]

setup.py

@@ -1,54 +1,2 @@
-from pathlib import Path
-
-import setuptools
-
-# The directory containing this file
-HERE = Path(__file__).parent.resolve()
-
-# The name of the project
-NAME = "jupyter-resource-usage"
-PACKAGE_NAME = NAME.replace("-", "_")
-LABEXT_NAME = "@jupyter-server/resource-usage"
-NBEXT_NAME = "jupyter_resource_usage"
-
-
-lab_path = HERE / PACKAGE_NAME / "labextension"
-nb_path = HERE / PACKAGE_NAME / "static"
-src_path = HERE / "packages" / "labextension"
-
-# Representative files that should exist after a successful build
-ensured_targets = [str(lab_path / "package.json"), str(lab_path / "static/style.js")]
-
-data_files_spec = [
-    ("share/jupyter/nbextensions/%s" % NBEXT_NAME, nb_path, "**"),
-    ("share/jupyter/labextensions/%s" % LABEXT_NAME, lab_path, "**"),
-    ("share/jupyter/labextensions/%s" % LABEXT_NAME, HERE, "install.json"),
-    (
-        "etc/jupyter/jupyter_server_config.d",
-        "jupyter-config/jupyter_server_config.d",
-        "jupyter_resource_usage.json",
-    ),
-    (
-        "etc/jupyter/jupyter_notebook_config.d",
-        "jupyter-config/jupyter_notebook_config.d",
-        "jupyter_resource_usage.json",
-    ),
-    (
-        "etc/jupyter/nbconfig/notebook.d",
-        "jupyter-config/nbconfig/notebook.d",
-        "jupyter_resource_usage.json",
-    ),
-]
-
-try:
-    from jupyter_packaging import wrap_installers, npm_builder, get_data_files
-
-    builder = npm_builder(build_cmd="build:prod", npm="jlpm", force=True)
-    cmdclass = wrap_installers(post_develop=builder, ensured_targets=ensured_targets)
-    setup_args = dict(cmdclass=cmdclass, data_files=get_data_files(data_files_spec))
-except ImportError:
-    setup_args = dict()
-
-
-if __name__ == "__main__":
-    setuptools.setup(**setup_args)
+# setup.py shim for use with applications that require it.
+__import__("setuptools").setup()