Use this Python script to recursively download an XML schema (XSD) and all linked schemas. This lets you quickly validate an xml record using a tool such as xmllint.

It supports relative XSD schemaLocations, eg <import schemaLocation="../../../../abc.

If needed, install virtualenv. Install repo in a new Python 3 environment:

pip install venv --user
python -m venv venv
source venv/bin/activate
pip install .

Run the script with your favorite .xsd URL:

python -m xsd_download https://schemas.isotc211.org/19115/-3/mdb/2.0/mdb.xsd

Your schema ends up in a folder called 'xsd'

Then if you have xmllint installed, you can validate an XML file called myrecord.xml by running:

xmllint --noout --schema ./xsd/schemas.isotc211.org/19115/-3/mdb/2.0/mdb.xsd myrecord.xml

python tests/tests.py

You can create a Docker image containing the script. This way you don't need to setup any python and venv.

docker build -t cioos-siooc/xml-schema-downloader:1.0 .

Run the image with your favorite .xsd URL:

docker run --rm -v `pwd`:`pwd` -w `pwd` cioos-siooc/xml-schema-downloader:1.0 https://schemas.isotc211.org/19115/-3/mdb/2.0/mdb.xsd