Add hatchling handling (#329)

Author: blink1073

jupyter_releaser/tests/test_functions.py

@@ -38,6 +38,16 @@ def test_get_version_pyproject_dynamic(py_package):
     assert util.get_version() == "0.0.1"
 
 
+def test_get_version_hatchling(py_package):
+    py_project = py_package / "pyproject.toml"
+    with open(py_project) as fid:
+        data = toml.load(fid)
+    del data["project"]["version"]
+    data["build-system"] = {"requires": ["hatchling>=1.0"], "build-backend": "hatchling.build"}
+    with open(py_project, "w") as fid:
+        fid.write(str(py_project))
+
+
 def test_get_version_setuppy(py_package):
     assert util.get_version() == "0.0.1"
     util.bump_version("0.0.2a0")

jupyter_releaser/util.py

@@ -152,25 +152,34 @@ def get_repo():
 
 def get_version():
     """Get the current package version"""
+    # Prefer to get a static version from pyproject.toml.
+    if PYPROJECT.exists():
+        text = PYPROJECT.read_text(encoding="utf-8")
+        data = toml.loads(text)
+        project = data.get("project", {})
+        version = project.get("version")
+        if version:
+            return version
+
+        # If this is a hatchling project, use hatchling to get
+        # the dynamic version.
+        if data.get("build-system", {}).get("build-backend") == "hatchling.build":
+            return run("hatchling version").split("\n")[-1]
+
     if SETUP_PY.exists():
         warnings.warn("Using deprecated setup.py invocation")
         try:
             return run("python setup.py --version").split("\n")[-1]
         except CalledProcessError as e:
             print(e)
 
+    # Build the wheel and extract the version.
     if PYPROJECT.exists():
-        text = PYPROJECT.read_text(encoding="utf-8")
-        data = toml.loads(text)
-        project = data.get("project", {})
-        version = project.get("version")
-        if not version:
-            with tempfile.TemporaryDirectory() as tempdir:
-                run(f"{sys.executable} -m build --wheel --outdir {tempdir}")
-                wheel_path = glob(f"{tempdir}/*.whl")[0]
-                wheel = Wheel(wheel_path)
-                version = wheel.version
-        return version
+        with tempfile.TemporaryDirectory() as tempdir:
+            run(f"{sys.executable} -m build --wheel --outdir {tempdir}")
+            wheel_path = glob(f"{tempdir}/*.whl")[0]
+            wheel = Wheel(wheel_path)
+            version = wheel.version
 
     if PACKAGE_JSON.exists():
         return json.loads(PACKAGE_JSON.read_text(encoding="utf-8")).get("version", "")

pyproject.toml

@@ -27,6 +27,7 @@ dependencies = [
     "click",
     "ghapi",
     "github-activity~=0.2",
+    "hatchling>=1.0",
     "importlib_resources",
     "jsonschema>=3.0.1",
     "packaging",