Do not use development mode in production. Home Assistant uses aggressive caching to improve the mobile experience. This is disabled during development so that you do not have to restart the server in between changes.
Setting up the environment
All commands below need to be run from inside the home-assistant-polymer repository.
Home Assistant will by default serve the compiled version of the frontend from the hass_frontend Python package. For development you want to work with the unbundled source files which are in the home-assistant-polymer repository.
First step is to configure Home Assistant to use the development mode for the frontend. Do this by updating the frontend config in your
configuration.yaml and set the path to the polymer repo:
frontend: development_repo: <absolute path to home-assistant-polymer>
Next step is to git clone the home-assistant-polymer repository. You can place the repository anywhere on your system but to keep these instructions simple we're cloning the home-assistant-polymer repository as a sibling to the Home Assistant repo.
$ git clone https://github.com/home-assistant/home-assistant-polymer.git $ cd home-assistant-polymer
After cloning, your folder structure should look like this:
Node.js is required to build the frontend. The preferred method of installing node.js is with nvm. Install nvm using the instructions in the README, and install the correct node.js by running the following command:
$ nvm install
Next, development dependencies need to be installed to bootstrap the frontend development environment. First activate the right Node version and then download all the needed modules and do a first build:
$ nvm use $ script/bootstrap
This script will use yarn and bower to install all the necessary dependencies necessary for development and do an initial build.
Creating pull requests
If you're planning on issuing a PR back to the Home Assistant codebase you need to fork the polymer project and add your fork as a remote to the Home Assistant Polymer repo.
$ git remote add <remote name> <github URL to your fork>
When you've made your changes and are ready to push them change to the working directory for the polymer project and then push your changes
$ git add -A $ git commit -m "Added new feature X" $ git push -u <remote name> HEAD
If you are changing
html files under
/panels - just reload the page in your browser to see changes.
/js you need to have gulp running to watch the source files for changes and build when necessary.
The source code for the frontend can be found in different directories:
Building the Polymer frontend
Building a new version of the frontend is as simple as running
To use a built version package it:
python setup.py sdist
pip3 install dist/home-assistant-frontend-xxxxxxxx.0.tar.gz --upgrade
Run Home Assistant without trying to reinstall production package: