fix: avoid polluting global namespace #628

	# This is a basic workflow to help you get started with Actions

	name: ci

	# Controls when the action will run. Triggers the workflow on push or pull request
	# events, but only for the master branch
	on:
	push:
	branches:
	- '**'
	pull_request:
	branches:
	- '**'

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: false
	matrix:
	os: [macos-latest, ubuntu-20.04, ubuntu-22.04]

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2

	# Runs a single command using the runners shell
	- name: Install prerequisites
	shell: bash
	run: \|
	if [[ "${{ matrix.os }}" == macos* ]]; then
	brew install zsh fish shellcheck
	elif [[ "${{ matrix.os }}" == ubuntu* ]]; then
	sudo apt-add-repository -y ppa:fish-shell/release-3
	sudo apt -y update
	sudo apt -y install zsh fish shellcheck
	fi

	- name: Show version
	run: \|
	bash --version; echo
	zsh --version; echo
	fish --version; echo

	- name: Shellcheck
	run: shellcheck forgit.plugin.sh bin/git-forgit

	- name: Test bash
	run: bash forgit.plugin.sh

	- name: Test zsh
	run: zsh forgit.plugin.zsh

	- name: Test fish
	run: fish conf.d/forgit.plugin.fish

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