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#!/bin/sh
# Download patches from debian project
# Usage $0 debian-patches.txt debian-patches.nix
# An example input and output files can be found in applications/graphics/xara/
DEB_URL=https://sources.debian.org/data/main
declare -a deb_patches
mapfile -t deb_patches < $1
# First letter
deb_prefix="${deb_patches[0]:0:1}"
prefix="${DEB_URL}/${deb_prefix}/${deb_patches[0]}/debian/patches"
if [[ -n "$2" ]]; then
exec 1> $2
fi
cat <<EOF
# Generated by $(basename $0) from $(basename $1)
let
prefix = "${prefix}";
in
[
EOF
for ((i=1;i < ${#deb_patches[@]}; ++i)); do
url="${prefix}/${deb_patches[$i]}"
sha256=$(nix-prefetch-url $url)
echo " {"
echo " url = \"\${prefix}/${deb_patches[$i]}\";"
echo " sha256 = \"$sha256\";"
echo " }"
done
echo "]"