Introduce proper formatting on python ,bash and yaml files #27

	name: Proper Formatting on bash files

	on: [push, pull_request]

	jobs:
	format_bash_files:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Install ShellCheck
	run: sudo apt install -y shellcheck

	- name: Bash Formatting Guidelines
	run: \|
	echo "### Bash Files Formatting Guidelines ###
	If there are errors and warnings regarding your bash files,
	You can check that error code definitions in https://www.shellcheck.net/wiki/ site.
	You can correct them using the https://www.shellcheck.net/ site.
	You have to ignore disable errors in .shellcheckrc file.
	"

	- name: Fetch master branch
	run: git fetch origin master

	- name: Set up changed files
	run: \|
	git diff --name-only origin/master...HEAD \| grep -E '^.*\.sh$' \| grep -v '^apps/' > changed_files_in_PR.txt \|\| true

	- name: Display changed files
	run: cat changed_files_in_PR.txt

	- name: Run ShellCheck on changed files
	run: \|
	cat changed_files_in_PR.txt \| xargs -I {} shellcheck {}
	shell: bash

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