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Developing Nominatim-UI

Continuous Integration

Background

Uses Svelte framework, Leaflet for map interaction, Bootstrap for layout styling.

The user interface used to be included in the geocoder. Thus the first version avoided being a redesign and still uses some of the same configuration values. Version 2 was a full refactor using Svelte. Version 3 added theme and easier configuration.

Building the frontend

  • Install dependencies

    yarn install

  • After you change files in src directory run

    yarn dev

    which will start a webserver on port 9080 and auto-reloads whenever you edit files. Configuration in rollup.config.js.

Testing

The test/ setup uses Mocha to run tests. Tests use Puppeteer to control a Google Chrome headless browser and evaluate with Assert.

  • Run integration test suite (configuration in .mocharc.json)

    yarn test
API_ON_SAME_PORT=1 yarn test

    Setting API_ON_SAME_PORT simulates having both the API and UI on the same server port. That's a rare setup but something https://nominatim.openstreetmap.org/ does so worth testing.

    To run a single test file only

    yarn run rollup -c && yarn run mocha test/details.js

  • Run syntax linter (configuration in .eslint.json)

    yarn lint

Prepare a release

  1. Update version number in package.json file

  2. Update CHANGES.md file

  3. Commit your changes: git add ... , git commit ..., git push ... etc

  4. Tag release: git tag THE_VERSION_NUMBER, git push --tags

  5. Create release on https://github.com/osm-search/nominatim-ui/releases This (a triggered Github Action) will run yarn build and add the dist/build/bundle.* files.