nixpkgs/pkgs/build-support/nuget-to-nix/nuget-to-nix.sh
Zhaofeng Li 1ad800d919 nuget-to-nix: init
Adapted from `pkgs/games/osu-lazer/update.sh`.

Restore the packages to a directory with `--packages`, then run
`./nuget-to-nix.sh [path to packages] > deps.nix`.
2021-08-13 22:50:20 -07:00

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#!/usr/bin/env bash
set -euo pipefail
if [ $# -eq 0 ]; then
>&2 echo "Usage: $0 [packages directory] > deps.nix"
exit 1
fi
pkgs=$1
echo "{ fetchNuGet }: ["
while read pkg_spec; do
{ read pkg_name; read pkg_version; } < <(
# Build version part should be ignored: `3.0.0-beta2.20059.3+77df2220` -> `3.0.0-beta2.20059.3`
sed -nE 's/.*<id>([^<]*).*/\1/p; s/.*<version>([^<+]*).*/\1/p' "$pkg_spec")
pkg_sha256="$(nix-hash --type sha256 --flat --base32 "$(dirname "$pkg_spec")"/*.nupkg)"
echo " (fetchNuGet { name = \"$pkg_name\"; version = \"$pkg_version\"; sha256 = \"$pkg_sha256\"; })"
done < <(find $1 -name '*.nuspec' | sort)
echo "]"