Get miniver to raise UnknownVersion when it encounters an unknown veresion

raise-on-unknown.patch

@@ -10,6 +10,11 @@ from setuptools.command.sdist import sdist as sdist_orig
 
 Version = namedtuple("Version", ("release", "dev", "labels"))
 
+
+class UnknownVersion(RuntimeError):
+    pass
+
+
 # No public API
 __all__ = []
 
@@ -35,7 +40,7 @@ def get_version(version_file=STATIC_VERSION_FILE):
         if not version:
             version = get_version_from_git_archive(version_info)
         if not version:
-            version = Version("unknown", None, None)
+            raise UnknownVersion()
         return pep440_format(version)
     else:
         return version
@@ -116,10 +121,7 @@ def get_version_from_git():
     try:
         release, dev, git = description
     except ValueError:  # No tags, only the git hash
-        # prepend 'g' to match with format returned by 'git describe'
-        git = "g{}".format(*description)
-        release = "unknown"
-        dev = None
+        raise UnknownVersion()
 
     labels = []
     if dev == "0":
@@ -163,7 +165,7 @@ def get_version_from_git_archive(version_info):
         release, *_ = sorted(version_tags)  # prefer e.g. "2.0" over "2.0rc1"
         return Version(release, dev=None, labels=None)
     else:
-        return Version("unknown", dev=None, labels=["g{}".format(git_hash)])
+        raise UnknownVersion()
 
 
 __version__ = get_version()