46 lines
705 B
Bash
46 lines
705 B
Bash
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#!/usr/bin/env bash
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set -xo pipefail
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install_deps() {
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apt -y update
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DEBIAN_FRONTEND=noninteractive apt -y install qemu-utils wget gzip
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}
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download_image() {
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local url="$1"
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wget "${url}"
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}
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img_to_raw() {
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local img_file="$1"
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local raw_file="$2"
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qemu-img convert "${img_file}" -O raw "${raw_file}"
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}
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compress_raw() {
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local raw_file="$1"
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gzip "${raw_file}"
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}
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cleanup() {
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local img_file="$1"
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rm -rf "${img_file}"
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}
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main() {
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local image_url="$1"
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local img_file="$2"
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local raw_file="$3"
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if [ ! -f "${raw_file}.gz" ]; then
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install_deps
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download_image "${image_url}"
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img_to_raw "${img_file}" "${raw_file}"
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compress_raw "${raw_file}"
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cleanup "${img_file}"
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fi
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}
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main "$1" "$2" "$3"
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