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55 lines
1.7 KiB
Bash
Executable File
55 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p nix curl libxml2 jq
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set -euo pipefail
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nixpkgs="$(git rev-parse --show-toplevel || (printf 'Could not find root of nixpkgs repo\nAre we running from within the nixpkgs git repo?\n' >&2; exit 1))"
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attr="${UPDATE_NIX_ATTR_PATH:-touchosc}"
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version="$(curl -sSL https://hexler.net/touchosc/appcast/linux | xmllint --xpath '/rss/channel/item/enclosure/@*[local-name()="version"]' - | cut -d= -f2- | tr -d '"' | head -n1)"
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narhash() {
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nix --extra-experimental-features nix-command store prefetch-file --json "$url" | jq -r .hash
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}
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nixeval() {
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if [ "$#" -ge 2 ]; then
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systemargs=(--argstr system "$2")
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else
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systemargs=()
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fi
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nix --extra-experimental-features nix-command eval --json --impure "${systemargs[@]}" -f "$nixpkgs" "$1" | jq -r .
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}
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findpath() {
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path="$(nix --extra-experimental-features nix-command eval --json --impure -f "$nixpkgs" "$1.meta.position" | jq -r . | cut -d: -f1)"
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outpath="$(nix --extra-experimental-features nix-command eval --json --impure --expr "fetchGit \"$nixpkgs\"")"
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if [ -n "$outpath" ]; then
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path="${path/$(echo "$outpath" | jq -r .)/$nixpkgs}"
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fi
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echo "$path"
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}
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oldversion="${UPDATE_NIX_OLD_VERSION:-$(nixeval "$attr".version)}"
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pkgpath="$(findpath "$attr")"
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if [ "$version" = "$oldversion" ]; then
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echo 'update.sh: New version same as old version, nothing to do.'
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exit 0
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fi
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sed -i -e "/version\s*=/ s|\"$oldversion\"|\"$version\"|" "$pkgpath"
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for system in aarch64-linux armv7l-linux x86_64-linux; do
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url="$(nixeval "$attr".src.url "$system")"
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curhash="$(nixeval "$attr".src.outputHash "$system")"
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newhash="$(narhash "$url")"
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sed -i -e "s|\"$curhash\"|\"$newhash\"|" "$pkgpath"
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done
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