Do not set local_version when no CI and pass CI env to tox

issue9928

.drone.yml

@@ -12,7 +12,7 @@ pipeline:
         environment:
             - CFLAGS=-O0
             - DB_CACHE=/cache
-            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE
+            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE CI_BUILD_NUMBER CI_JOB_NUMBER CI_JOB_ID
             - POSTGRESQL_URI=postgresql://postgres@postgresql:5432/
         commands:
             - echo "[extensions]" >> /root/.hgrc

setup.py

@@ -49,7 +49,11 @@ if os.environ.get('CI_JOB_ID'):
     local_version.append(os.environ['CI_JOB_ID'])
 else:
     for build in ['CI_BUILD_NUMBER', 'CI_JOB_NUMBER']:
-        local_version.append(os.environ.get(build, ''))
+        if os.environ.get(build):
+            local_version.append(os.environ[build])
+        else:
+            local_version = []
+            break
 if local_version:
     version += '+' + '.'.join(local_version)