56 lines
1.5 KiB
Bash
Executable File
56 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p curl megacmd unzip common-updater-scripts
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set -eu -o pipefail
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ATTR=legends-of-equestria
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DOWNLOADS_PAGE=https://www.legendsofequestria.com/downloads
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OLD_VERSION=$(nix-instantiate --eval -A $ATTR.version | tr -d '"')
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TMP=$(mktemp -d)
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findHash() {
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system=$1
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url="$2"
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mkdir -p $TMP/$system/{download,out}
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oldpwd="$(pwd)"
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cd $TMP/$system
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echo "downloading to $(pwd)/download..." >&2
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HOME=$TMP mega-get "$url" download >&2
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echo "unzipping to $(pwd)/out..." >&2
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unzip -q -d out download/*.zip
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nix --extra-experimental-features nix-command hash path --sri out
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cd "$oldpwd"
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}
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applyUpdate() {
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system=$1
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echo "checking for updates for $system..." >&2
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systemText="$2"
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regex='<a href="(https.+)">'"$systemText"'</a>.+v(([0-9]+\.)+[0-9]+)'
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if [[ "$(curl -s $DOWNLOADS_PAGE | grep -Fi "$systemText")" =~ $regex ]]; then
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url="${BASH_REMATCH[1]}"
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version="${BASH_REMATCH[2]}"
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echo "$version $url" >&2
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else
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echo "cannot find the latest version for $system" >&2
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exit 1
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fi
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if [[ $OLD_VERSION == $version ]]; then
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echo "already up-to-date at version $version" >&2
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exit 1
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fi
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hash="$(findHash $system "$url" | sed -E 's/sha256-(.+)/\1/')"
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echo "output hash: $hash" >&2
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update-source-version $ATTR $version "$hash" "$url" --system=$system --ignore-same-version --ignore-same-hash
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}
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applyUpdate x86_64-linux Linux
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applyUpdate x86_64-darwin macOS
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applyUpdate aarch64-darwin "macOS arm64"
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