fix: nil check on_exit and on_stderr config functions (#119) #216

	name: Linting and style checking

	on:
	push:
	branches: [master]
	pull_request:

	jobs:
	luacheck:
	name: luacheck
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: lunarmodules/luacheck@v1
	with:
	args: lua/rsync

	stylua:
	name: stylua
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: JohnnyMorganz/stylua-action@v2
	with:
	token: ${{ secrets.GITHUB_TOKEN }}
	version: latest
	args: --color always --check lua/ tests/
	cargo-fmt:
	name: cargo format
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- uses: dtolnay/rust-toolchain@stable
	- uses: actions-rs/cargo@v1
	with:
	command: fmt
	args: --check
	cargo-clippy:
	name: cargo clippy
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2
	- name: install cargo
	uses: dtolnay/rust-toolchain@stable
	with:
	components: clippy
	- name: restore cache
	uses: Swatinem/rust-cache@v2
	- name: run clippy
	run: cargo clippy

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