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This page documents a couple of points for maintaining the Home Assistant code. Most of the tasks don't need to be performed on a regular basis thus the steps, used tools, or details are preserved here.
Source code
Line separator
People are using various operating systems to develop components and platforms for Home Assistant. This could lead to different line endings in files. We prefer LN. Especially Microsoft Windows tools tend to use CRLF.
$ find homeassistant -name "*.py" -exec file {} \; | grep BOM
$ find homeassistant -name "*.py" -exec file {} \; | grep CRLF
To fix the line separator, use dos2unix or sed.
$ dos2unix homeassistant/components/notify/kodi.py
File permissions
Most files don't need to be executable. 0644 is fine.
Dependencies
A lot of components and platforms depend on third-party Python modules. The dependencies which are stored in the requirements_all.txt files can be tracked with pur or pip-upgrader.
If you update the requirements of a component/platform by updating manifest.json, run the provided script to update the requirements_*.txt file(s).
$ script/gen_requirements_all.py
Start a test run of Home Assistant. If that was successful, include all files in a Pull Request. Add a short summary of the changes, a sample configuration entry, details about the tests you performed to ensure the update works, and other useful information to the description.
Documentation
- Merge
currentintonexton a regular basis. - Optimize the images.