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live-bootstrap

Mirror of <https://github.com/fosslinux/live-bootstrap>

download-distfiles.sh (2170B)

    

  1. #!/usr/bin/env bash
  3. # SPDX-FileCopyrightText: 2022 fosslinux <fosslinux@aussies.space>
  4. #
  5. # SPDX-License-Identifier: GPL-3.0-or-later
  7. # Optional arguments: Mirrors
  9. download_source() {
  10.     local distfiles=${1}
  11.     local url=${2}
  12.     shift 2
  13.     if [[ ${url} == git://* ]]; then
  14.         url=${1}
  15.         shift
  16.     fi
  17.     local checksum=${1}
  18.     local fname=${2}
  19.     # Default to basename of url if not given
  20.     fname=${fname:-$(basename "${url}")}
  21.     if [ "${fname}" = "_" ]; then
  22.         echo "ERROR: ${url} must have a filename specified"
  23.         exit 1
  24.     fi
  26.     local dest_path=${distfiles}/${fname}
  27.     if ! [ -e "${dest_path}" ]; then
  28.         echo "Downloading ${fname}"
  29.         if [ "${mirrors_len}" -ne 0 ]; then
  30.             local mirror_ix=$((RANDOM % mirrors_len))
  31.             url=${mirrors[${mirror_ix}]}/${fname}
  32.         fi
  33.         curl --fail --location "${url}" --output "${dest_path}" || true
  34.     fi
  35. }
  37. check_source() {
  38.     local distfiles=${1}
  39.     local url=${2}
  40.     shift 2
  41.     if [[ ${url} == git://* ]]; then
  42.         url=${1}
  43.         shift
  44.     fi
  45.     local checksum=${1}
  46.     local fname=${2}
  47.     # Default to basename of url if not given
  48.     fname=${fname:-$(basename "${url}")}
  50.     local dest_path=${distfiles}/${fname}
  51.     echo "${checksum}  ${dest_path}" | sha256sum -c
  52. }
  54. set -e
  56. mirrors=( "$@" )
  57. mirrors_len=$#
  59. cd "$(dirname "$(readlink -f "$0")")"
  60. mkdir -p distfiles
  62. # First, try to download anything missing - ignore failing mirrors
  63. for entry in steps/*; do
  64.     [ -e "${entry}/sources" ] || continue
  66.     # shellcheck disable=SC2162
  67.     while read line; do
  68.         # This is intentional - we want to split out ${line} into separate arguments.
  69.         # shellcheck disable=SC2086
  70.         download_source distfiles ${line}
  71.     done < "${entry}/sources"
  72. done
  74. # Then, check if everything has been obtained at least once
  75. for entry in steps/*; do
  76.     [ -e "${entry}/sources" ] || continue
  78.     # shellcheck disable=SC2162
  79.     while read line; do
  80.         # This is intentional - we want to split out ${line} into separate arguments.
  81.         # shellcheck disable=SC2086
  82.         check_source distfiles ${line}
  83.     done < "${entry}/sources"
  84. done