fix #507 - use dist.metadata.name and add pyproject support for dist_name

Author: RonnyPfannschmidt

src/setuptools_scm/config.py

@@ -127,7 +127,7 @@ def tag_regex(self, value):
         self._tag_regex = _check_tag_regex(value)
 
     @classmethod
-    def from_file(cls, name="pyproject.toml"):
+    def from_file(cls, name="pyproject.toml", dist_name=None):
         """
         Read Configuration from pyproject.toml (or similar).
         Raises exceptions when file is not found or toml is
@@ -137,4 +137,4 @@ def from_file(cls, name="pyproject.toml"):
         with open(name) as strm:
             defn = __import__("toml").load(strm)
         section = defn.get("tool", {})["setuptools_scm"]
-        return cls(**section)
+        return cls(**section, dist_name=dist_name)

src/setuptools_scm/integration.py

@@ -16,8 +16,12 @@ def version_keyword(dist, keyword, value):
     assert (
         "dist_name" not in value
     ), "dist_name may not be specified in the setup keyword "
-    trace("dist name", dist, dist.name)
-    dist_name = dist.name if dist.name != 0 else None
+
+    trace(
+        "version keyword",
+        vars(dist.metadata),
+    )
+    dist_name = dist.metadata.name
     config = Configuration(dist_name=dist_name, **value)
     dist.metadata.version = _get_version(config)
 
@@ -45,9 +49,13 @@ def _args_from_toml(name="pyproject.toml"):
 
 
 def infer_version(dist):
-
+    trace(
+        "finalize hook",
+        vars(dist.metadata),
+    )
+    dist_name = dist.metadata.name
     try:
-        config = Configuration.from_file()
+        config = Configuration.from_file(dist_name=dist_name)
     except Exception:
         return trace_exception()
     dist.metadata.version = _get_version(config)

testing/test_integration.py

@@ -31,12 +31,14 @@ def test_pyproject_support(tmpdir, monkeypatch):
 
 
 def test_pyproject_support_with_git(tmpdir, monkeypatch, wd):
-    monkeypatch.delenv("SETUPTOOLS_SCM_DEBUG")
+    pytest.importorskip("toml")
     pkg = tmpdir.join("wd")
     pkg.join("pyproject.toml").write("""[tool.setuptools_scm]""")
-    pkg.join("setup.py").write("__import__('setuptools').setup()")
+    pkg.join("setup.py").write(
+        "__import__('setuptools').setup(name='setuptools_scm_example')"
+    )
     res = do((sys.executable, "setup.py", "--version"), pkg)
-    assert res == "0.1.dev0"
+    assert res.endswith("0.1.dev0")
 
 
 def test_pretend_version(tmpdir, monkeypatch, wd):
@@ -46,6 +48,15 @@ def test_pretend_version(tmpdir, monkeypatch, wd):
     assert wd.get_version(dist_name="ignored") == "1.0.0"
 
 
+def test_pretend_version_named_pyproject_integration(tmpdir, monkeypatch, wd):
+    test_pyproject_support_with_git(tmpdir, monkeypatch, wd)
+    monkeypatch.setenv(
+        PRETEND_KEY_NAMED.format(name="setuptools_scm_example".upper()), "3.2.1"
+    )
+    res = do((sys.executable, "setup.py", "--version"), tmpdir / "wd")
+    assert res.endswith("3.2.1")
+
+
 def test_pretend_version_named(tmpdir, monkeypatch, wd):
     monkeypatch.setenv(PRETEND_KEY_NAMED.format(name="test".upper()), "1.0.0")
     monkeypatch.setenv(PRETEND_KEY_NAMED.format(name="test2".upper()), "2.0.0")