How to do it...

The procedure to put the revision number in the STATIC_URL settings consists of the following two steps:

1. Insert the following content:

# utils/misc.py
import subprocess


def get_media_svn_revision(absolute_path):
    repo_dir = absolute_path
    svn_revision = subprocess.Popen(
        "svn info | grep 'Revision' | awk '{print $2}'",
        stdout=subprocess.PIPE,
        stderr=subprocess.PIPE, 
        shell=True,
        cwd=repo_dir,
        universal_newlines=True)
    rev = svn_revision.communicate()[0].partition('\n')[0]
    return rev

1. Modify the settings.py file and add the following lines:

# settings.py
# ... somewhere after BASE_DIR definition ...
from utils.misc import get_media_svn_revision
STATIC_URL = f'/static/{get_media_svn_revision(BASE_DIR)}/'