Allow skipping of compilemessages for transifex PRs

.travis.yml

@@ -89,7 +89,7 @@ script:
   - set -e
 
   # test that everything is well formatted, no missing migrations etc
-  - ./code_check.py --debug
+  - ./code_check.py --debug $([[ "$TRAVIS_BRANCH" =~ "translations_django-po" ]] && echo "--skip-compilemessages")
 
   # run our Javascript tests
   - node_modules/karma/bin/karma start karma.conf.coffee --single-run --browsers PhantomJS

code_check.py

@@ -7,6 +7,7 @@
 import polib
 
 parser = argparse.ArgumentParser(description="Code checks")
+parser.add_argument("--skip-compilemessages", action="store_true")
 parser.add_argument("--debug", action="store_true")
 args = parser.parse_args()
 
@@ -66,16 +67,22 @@ def get_current_msgids():
 
     status("Make any missing migrations")
     cmd("python manage.py makemigrations")
+
     status("Running black")
     cmd("black --line-length=119 --target-version=py36 temba")
+
     status("Running flake8")
     cmd("flake8")
+
     status("Running isort")
     cmd("isort -rc temba")
+
     status("Updating locale PO files")
     update_po_files()
-    status("Recompiling locale MO files")
-    cmd("python manage.py compilemessages")
+
+    if not args.skip_compilemessages:
+        status("Recompiling locale MO files")
+        cmd("python manage.py compilemessages")
 
     # if any code changes were made, exit with error
     if cmd("git diff temba locale"):