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Adapter development

In the steps below, ~/.env3 is used a virtualenv directory, and ~/github.com is used as a location of dbt-singlestore folder containing these sources. Certain parts of code have been copied from https://github.com/dbeatty10/dbt-mysql and subsequently modified.

Prepare environment

Replace dbt-core and dbt-tests-adapter values in the dev_requirements.txt file with the version you want to work with

pip install virtualenv &&
virtualenv ~/.env3 -p /usr/bin/python3 &&
source ~/.env3/bin/activate

Run tests

  1. Install test packages 
    pip install -r dev_requirements.txt
  2. Run SingleStore server instance locally or use Managed Service instance.
  3. Create a file named test.env and fill credentials in ENV variables referenced in tests/conftest.py.
  4. A database named dbt_test is used in tests. Snapshot tests expect it to be empty before running the tests. Therefore, prior to running the test suite, the following SQL must be executed: 
    DROP DATABASE IF EXISTS dbt_test; CREATE DATABASE dbt_test;
  5. Run the tests: 
    pytest
    • append --pdb to debug
    • append -k <test_name> to run a specific test Example: pytest -k TestSingularTestsMyAdapter --pdb

Initial repository setup

In order to get the file structure for this repository, the following commands have been used

virtualenv ~/.env3 -p /usr/bin/python3;
source ~/.env3/bin/activate;
pip install dbt-core dbt-postgres;
pip install singlestoredb=1.2.0;
cd <PATH_TO_DBT_CORE>/core/scripts;
python create_adapter_plugins.py --sql --title-case=SingleStore ~/github.com/ singlestore;
mv  ~/github.com/singlestore ~/github.com/dbt-singlestore;
git init;
mkdir -p build  # folder for artifacts and test scripts

Package connector for distribution

pip3 install --upgrade build twine
python3 setup.py sdist; python3 setup.py bdist_wheel --universal; twine upload dist/*