developers: opencv: Update c++ example #136

	name: Build and Deploy

	on: [push, pull_request]

	jobs:
	build-and-deploy:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout 🛎️
	uses: actions/[email protected]
	with:
	persist-credentials: false

	- name: Install and Build 🔧
	run: \|
	sudo apt update
	sudo apt install python3-pip python3-setuptools
	sudo pip3 install pymavlink
	sudo pip3 install pylint
	sudo pip3 install isort==4.3.21
	sudo npm install gitbook-cli -g
	# fix polyfill issue in gitbook
	sudo sed -i "/fs.stat = statFix(fs.stat)/c\\" /usr/local/lib/node_modules/gitbook-cli/node_modules/npm/node_modules/graceful-fs/polyfills.js
	sudo sed -i "/fs.fstat = statFix(fs.fstat)/c\\" /usr/local/lib/node_modules/gitbook-cli/node_modules/npm/node_modules/graceful-fs/polyfills.js
	sudo sed -i "/fs.lstat = statFix(fs.lstat)/c\\" /usr/local/lib/node_modules/gitbook-cli/node_modules/npm/node_modules/graceful-fs/polyfills.js

	sudo gitbook install
	gitbook build
	# Disables:
	# - line-too-long (because of long output comments at the end)
	# - invalid-constant-name (because our variables are not supposed constants)
	# - duplicate-code (because some snippets have the same snippet duplicated)
	pylint --disable=R0801 --disable=C0103 --disable=C0301 --disable=C0209 developers/pymavlink/*

	- name: Deploy 🚀
	uses: JamesIves/[email protected]
	if: github.ref == 'refs/heads/master'
	with:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	BRANCH: gh-pages
	FOLDER: _book
	CLEAN: false # Don't Automatically remove deleted files from the deploy branch

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