packaging: allow installing without git (#4306)

Fixes #4145
canonical · Aug 7, 2023 · f3ee96a · f3ee96a
1 parent 91a18b3
commit f3ee96a
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/tools/version.py b/tools/version.py
@@ -16,6 +16,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import fileinput
+import os
 import pathlib
 import subprocess
 import sys
@@ -32,13 +33,15 @@ def determine_version():
     desc = (
         subprocess.run(
             ["git", "describe", "--always", "--long"],
-            check=True,
             stdout=subprocess.PIPE,
         )
         .stdout.decode()
         .strip()
     )
 
+    if not desc:
+        return os.environ.get("SNAP_VERSION", "0.0.0+devel")
+
     split_desc = desc.split("-")
     assert (
         len(split_desc) == 3