使用此脚本时，需先安装好代理软件并正确配置代理。该脚本默认的代理Host是127.0.0.1，端口是11223，可自行修改

export HTTP_PROXY_HOST="127.0.0.1"
export HTTP_PROXY_PORT=11223

用法

• 文档

http_proxy: Command line proxy switching tool.
usage: http_proxy <option> [args]

options:
    status                 - Display the status of each configured proxy
	enable  [term/git] - Enable proxy for term/git, default to term
	disable [term/git] - Disable proxy for term/git, default to term

• 示例

# 查看代理状态
http_proxy status
# 启用代理
http_proxy enable term
# 禁用代理
http_proxy disable term

代码

[ -z "$HTTP_PROXY_HOST" ] && export HTTP_PROXY_HOST="127.0.0.1"
[ -z "$HTTP_PROXY_PORT" ] && export HTTP_PROXY_PORT="11223"

http_proxy__help() {
	echo "http_proxy: Command line proxy switching tool."
	echo "usage: http_proxy <option> [args]"
	echo
	echo "  options:"
	echo "    help                   - Show this help documentation"
	echo "    status                 - Display the status of each configured proxy"
	echo "    enable  [term/git] - Enable proxy for term/git, default to term"
	echo "    disable [term/git] - Disable proxy for term/git, default to term"
	echo
}

http_proxy__status() {
	if [[ -z "$1" || "$1" == "term" ]]; then
		echo "term:"
		echo "  http_proxy: $http_proxy"
		echo "  https_proxy: $https_proxy"
	fi

	if [[ -z "$1" || "$1" == "git" ]]; then
		echo "git:"
		echo "  http.proxy: $(git config --global http.proxy)"
		echo "  https.proxy: $(git config --global https.proxy)"
	fi
}

http_proxy__enable() {
	local http_proxy_url="http://$HTTP_PROXY_HOST:$HTTP_PROXY_PORT"

	if [[ -z "$1" || "$1" == "term" ]]; then
		export http_proxy="$http_proxy_url"
		export https_proxy="$http_proxy_url"
	fi

	if [ "$1" = "git" ]; then
		git config --global http.proxy $http_proxy_url
		git config --global https.proxy $http_proxy_url
	fi

	http_proxy__status
}

http_proxy__disable() {
	if [[ -z "$1" || "$1" == "term" ]]; then
		if [ ! -z "$http_proxy" ]; then
			unset http_proxy
		fi
		if [ ! -z "$https_proxy" ]; then
			unset https_proxy
		fi
	fi

	if [ "$1" = "git" ]; then
		if [ ! -z "$(git config --global http.proxy)" ]; then
			git config --global --unset http.proxy
		fi
		if [ ! -z "$(git config --global https.proxy)" ]; then
			git config --global --unset https.proxy
		fi
	fi

	http_proxy__status
}

http_proxy() {
	if [[ -z "$1" || "$1" == "help" || "$1" == "-h" || "$1" == "--help" ]]; then
		http_proxy__help
	elif [[ "$1" == "status" ]]; then
		http_proxy__status "$2"
	elif [[ "$1" == "enable" ]]; then
		http_proxy__enable "$2"
	elif [[ "$1" == "disable" ]]; then
		http_proxy__disable "$2"
	else
		echo "invalid option: $1"
		http_proxy__help
	fi
}