element-{desktop,web-unwrapped}: {fix,modernize} update script (#407741)

#!/usr/bin/env nix-shell

#!nix-shell -i bash -p nix wget prefetch-yarn-deps nix-prefetch-github jq

#!nix-shell -i bash -p nix coreutils prefetch-yarn-deps jq curl

if [ "$#" -gt 1 ] || [[ "$1" == -* ]]; then

  echo "Regenerates packaging data for the element packages."

set -euo pipefail

if [ -z "$version" ]; then

  version="$(wget -q -O- "https://api.github.com/repos/element-hq/element-desktop/releases?per_page=1" | jq -r '.[0].tag_name')"

  version="$(curl -fsSL "https://api.github.com/repos/element-hq/element-desktop/releases/latest" | jq -r '.tag_name')"

fi

# strip leading "v"

version="${version#v}"

# Element Web

web_src="https://raw.githubusercontent.com/element-hq/element-web/v$version"

web_src_hash=$(nix-prefetch-github element-hq element-web --rev v${version} | jq -r .hash)

cd "$(dirname "${BASH_SOURCE[0]}")" || exit 1

web_tmpdir=$(mktemp -d)

trap 'rm -rf "$web_tmpdir"' EXIT

nixflags=(

  --extra-experimental-features

  "nix-command flakes"

)

pushd $web_tmpdir

wget -q "$web_src/yarn.lock"

web_yarn_hash=$(prefetch-yarn-deps yarn.lock)

popd

# HACK: prefetch-yarn-deps hashes may output extra clutter on stdout (!) so

# we'll need to get the last line, last word

fixupHash() {

  local sorta_yarn_hash="$(tail -n1 <<< "$1")"

  local almost_yarn_hash="${sorta_yarn_hash##* }"

  local yarn_hash="$(nix "${nixflags[@]}" hash convert --hash-algo sha256 "$almost_yarn_hash")"

# Element Desktop

desktop_src="https://raw.githubusercontent.com/element-hq/element-desktop/v$version"

desktop_src_hash=$(nix-prefetch-github element-hq element-desktop --rev v${version} | jq -r .hash)

  printf "%s" "$yarn_hash"

}

desktop_tmpdir=$(mktemp -d)

trap 'rm -rf "$desktop_tmpdir"' EXIT

getHashes() {

  variant="$1"

  output="$2"

pushd $desktop_tmpdir

wget -q "$desktop_src/yarn.lock"

desktop_yarn_hash=$(prefetch-yarn-deps yarn.lock)

popd

  local url="github:element-hq/element-$variant/v$version"

  local src="$(nix "${nixflags[@]}" flake prefetch --json "$url")"

  local src_hash="$(jq -r ".hash" <<< "$src")"

  local src_path="$(jq -r ".storePath" <<< "$src")"

  local yarn_hash="$(fixupHash "$(prefetch-yarn-deps "$src_path/yarn.lock")")"

cat > ../element-web-unwrapped/element-web-pin.nix << EOF

  cat > "$output" << EOF

{

  "version" = "$version";

  "hashes" = {

    "webSrcHash" = "$web_src_hash";

    "webYarnHash" = "$web_yarn_hash";

    "${variant}SrcHash" = "$src_hash";

    "${variant}YarnHash" = "$yarn_hash";

  };

}

EOF

cat > element-desktop-pin.nix << EOF

{

  "version" = "$version";

  "hashes" = {

    "desktopSrcHash" = "$desktop_src_hash";

    "desktopYarnHash" = "$desktop_yarn_hash";

  };

}

EOF

getHashes web ../element-web-unwrapped/element-web-pin.nix

getHashes desktop element-desktop-pin.nix