nixpkgs/maintainers/scripts/kde/collect-licenses.sh

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#!/usr/bin/env nix-shell
#!nix-shell -i bash -p gnutar jq reuse
set -eu
cd "$(dirname "$(readlink -f "$0")")"/../../..
TMPDIR=$(mktemp -d)
trap 'rm -rf $TMPDIR' EXIT
echo "# Prebuilding sources..."
nix-build -A kdePackages.sources --no-link || true
echo "# Evaluating sources..."
declare -A sources
eval "$(nix-instantiate --eval -A kdePackages.sources --json --strict | jq 'to_entries[] | "sources[" + .key + "]=" + .value' -r)"
echo "# Collecting licenses..."
for k in "${!sources[@]}"; do
echo "- Processing $k..."
if [ ! -f "${sources[$k]}" ]; then
echo "Not found!"
continue
fi
mkdir "$TMPDIR/$k"
tar -C "$TMPDIR/$k" -xf "${sources[$k]}"
(cd "$TMPDIR/$k"; reuse lint --json) | jq --arg name "$k" '{$name: .summary.used_licenses | sort}' -c > "$TMPDIR/$k.json"
done
jq -s 'add' -S "$TMPDIR"/*.json > pkgs/kde/generated/licenses.json