live-bootstrap/download-distfiles.sh

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#!/usr/bin/env bash
# SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
#
# SPDX-License-Identifier: GPL-3.0-or-later
download_source() {
local distfiles="${1}"
local url="${2}"
local checksum="${3}"
local fname="${4}"
# Default to basename of url if not given
fname="${fname:-$(basename "${url}")}"
local dest_path="${distfiles}/${fname}"
if ! [ -e "${dest_path}" ]; then
echo "Downloading ${fname}"
curl --fail --location "${url}" --output "${dest_path}" || true
fi
}
check_source() {
local distfiles="${1}"
local url="${2}"
local checksum="${3}"
local fname="${4}"
# Default to basename of url if not given
fname="${fname:-$(basename "${url}")}"
local dest_path="${distfiles}/${fname}"
echo "${checksum} ${dest_path}" | sha256sum -c
}
set -e
cd "$(dirname "$(readlink -f "$0")")"
mkdir -p distfiles
# First, try to download anything missing - ignore failing mirrors
for entry in steps/*; do
[ -e "${entry}/sources" ] || continue
# shellcheck disable=SC2162
while read line; do
# This is intentional - we want to split out ${line} into separate arguments.
# shellcheck disable=SC2086
download_source distfiles ${line}
done < "${entry}/sources"
done
# Then, check if everything has been obtained at least once
for entry in steps/*; do
[ -e "${entry}/sources" ] || continue
# shellcheck disable=SC2162
while read line; do
# This is intentional - we want to split out ${line} into separate arguments.
# shellcheck disable=SC2086
check_source distfiles ${line}
done < "${entry}/sources"
done