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nixpkgs/pkgs/applications/networking/instant-messengers/element/update.sh

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#!/usr/bin/env nix-shell
#!nix-shell -I nixpkgs=../../../../../ -i bash -p nix wget prefetch-yarn-deps nix-prefetch-github
if [ "$#" -gt 1 ] || [[ "$1" == -* ]]; then
echo "Regenerates packaging data for the element packages."
echo "Usage: $0 [git release tag]"
exit 1
fi
version="$1"
set -euo pipefail
if [ -z "$version" ]; then
version="$(wget -O- "https://api.github.com/repos/vector-im/element-desktop/releases?per_page=1" | jq -r '.[0].tag_name')"
fi
# strip leading "v"
version="${version#v}"
desktop_src="https://raw.githubusercontent.com/vector-im/element-desktop/v$version"
desktop_src_hash=$(nix-prefetch-github vector-im element-desktop --rev v${version} | jq -r .sha256)
web_hash=$(nix-prefetch-url "https://github.com/vector-im/element-web/releases/download/v$version/element-v$version.tar.gz")
wget "$desktop_src/package.json" -O element-desktop-package.json
tmpdir=$(mktemp -d)
trap 'rm -rf "$tmpdir"' EXIT
pushd $tmpdir
wget "$desktop_src/yarn.lock"
desktop_yarn_hash=$(prefetch-yarn-deps yarn.lock)
popd
cat > pin.json << EOF
{
"version": "$version",
"desktopSrcHash": "$desktop_src_hash",
"desktopYarnHash": "$desktop_yarn_hash",
"webHash": "$web_hash"
}
EOF