own_version: also parse archival data

fixes #824

eventually this should be migrated to faking entrypoints from pyproject.toml

1 files changed, 25 insertions, 4 deletions

diff --git a/_own_version_helper.py b/_own_version_helper.py
index e512dc2..f7dc4fe 100644
--- a/_own_version_helper.py
+++ b/_own_version_helper.py
@@ -4,6 +4,10 @@ to use the attribute for the versions
 """
 from __future__ import annotations
 
+import logging
+from typing import Callable
+
+from setuptools_scm import _types as _t
 from setuptools_scm import Configuration
 from setuptools_scm import get_version
 from setuptools_scm import git
@@ -13,12 +17,29 @@ from setuptools_scm.version import get_local_node_and_date
 from setuptools_scm.version import guess_next_dev_version
 from setuptools_scm.version import ScmVersion
 
+log = logging.getLogger("setuptools_scm")
+
+# todo: take fake entrypoints from pyproject.toml
+try_parse: list[Callable[[_t.PathT, Configuration], ScmVersion | None]] = [
+    parse_pkginfo,
+    git.parse,
+    hg.parse,
+    git.parse_archival,
+    hg.parse_archival,
+]
+
 
 def parse(root: str, config: Configuration) -> ScmVersion | None:
-    try:
-        return parse_pkginfo(root, config)
-    except OSError:
-        return git.parse(root, config=config) or hg.parse(root, config=config)
+    for maybe_parse in try_parse:
+        try:
+            parsed = maybe_parse(root, config)
+        except OSError as e:
+            log.warning("parse with %s failed with: %s", maybe_parse, e)
+        else:
+            if parsed is not None:
+                return parsed
+    else:
+        return None
 
 
 def scm_version() -> str: