From: Phil Howard <phil@gadgetoid.com>
Date: Fri, 24 May 2019 12:44:20 +0000 (+0100)
Subject: Documentation
X-Git-Url: https://zdv2.bktei.com/gitweb/EVA-2020-02-2.git/commitdiff_plain/b3d403902fb4ad808220c7078607be402a55c890?ds=sidebyside;hp=--cc

Documentation
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+* Python Library - library/name/__init__.py
+* At least *one*  test - library/tests/test_setup.py
+* Examples
+
+# In Detail
+
+To get started, copy the contents of this repository (excluding the .git directory) and run `_bootstrap.sh` to highlight substitutions you need to make.
+
+Be careful to copy *all* files, including those starting with a . such as `.travis.yml`.
+
+A Makefile is provided to automate some tests, checks and package building. You should use it!
+
+## Library
+
+### Structure
+
+Libraries should be singleton if they pertain to a HAT or pHAT and class-based if they are for breakouts with selectable addresses.
+
+A singleton library would work like this:
+
+```
+import library
+
+library.do_something()
+```
+
+Whereas a class-based library requires an instance of its class:
+
+```
+import library
+
+device = library.Library()
+
+device.do_something()
+```
+
+### Linting
+
+You should ensure you either run `flake8` while writing the library, or use an IDE/Editor with linting.
+
+All libraries (and example code) should stick to PEP8 style guides, although you can ignore long line warnings (E501) if you feel they're unwarranted.
+
+### Testing
+
+At least one test script should be used to prevent obvious errors and omissions from creeping into the library.
+
+You should use `tox` to run the test scripts:
+
+```
+sudo pip install tox
+cd library/
+tox
+```
+
+## Examples
+
+Examples should use hyphens and short, descriptive names, ie: `rainbow-larson.py`
+
+Examples should include a `print()` front-matter introducing them, ie:
+
+```
+print("""rainbow-larson.py - Display a larson scanning rainbow
+
+Press Ctrl+C to exit.
+
+""")
+```
+
+# Deployment
+
+Before deploying you should `make python-testdeploy` and verify that the package looks good and is installable from test PyPi.
+
+You should also `make check` to catch common errors, including mismatched version numbers, trailing whitespace and DOS line-endings.
+
+Subsequent to deployment you should `git tag -a "vX.X.X" -m "Version X.X.X"` and `git push origin master --follow-tags` to tag a release on GitHub that matches the deployed code.