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kodelife: add updateScript

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Lily Foster 2022-11-03 10:23:43 -04:00
parent ac1f5b72a9
commit 5123929a70
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2 changed files with 56 additions and 0 deletions
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2
pkgs/applications/graphics/kodelife/default.nix
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@ -95,6 +95,8 @@ stdenv.mkDerivation rec {
runHook postInstall
'';
passthru.updateScript = ./update.sh;
meta = with lib; {
homepage = "https://hexler.net/kodelife";
description = "Real-time GPU shader editor";

54
pkgs/applications/graphics/kodelife/update.sh Executable file
View file

@ -0,0 +1,54 @@
#!/usr/bin/env nix-shell
#!nix-shell -i bash -p nix curl libxml2 jq
set -euo pipefail
nixpkgs="$(git rev-parse --show-toplevel || (printf 'Could not find root of nixpkgs repo\nAre we running from within the nixpkgs git repo?\n' >&2; exit 1))"
attr="${UPDATE_NIX_ATTR_PATH:-kodelife}"
version="$(curl -sSL https://hexler.net/kodelife/appcast/linux | xmllint --xpath '/rss/channel/item/enclosure/@*[local-name()="version"]' - | cut -d= -f2- | tr -d '"' | head -n1)"
narhash() {
nix --extra-experimental-features nix-command store prefetch-file --json "$url" | jq -r .hash
}
nixeval() {
if [ "$#" -ge 2 ]; then
systemargs=(--argstr system "$2")
else
systemargs=()
fi
nix --extra-experimental-features nix-command eval --json --impure "${systemargs[@]}" -f "$nixpkgs" "$1" | jq -r .
}
findpath() {
path="$(nix --extra-experimental-features nix-command eval --json --impure -f "$nixpkgs" "$1.meta.position" | jq -r . | cut -d: -f1)"
outpath="$(nix --extra-experimental-features nix-command eval --json --impure --expr "builtins.fetchGit \"$nixpkgs\"")"
if [ -n "$outpath" ]; then
path="${path/$(echo "$outpath" | jq -r .)/$nixpkgs}"
fi
echo "$path"
}
oldversion="${UPDATE_NIX_OLD_VERSION:-$(nixeval "$attr".version)}"
pkgpath="$(findpath "$attr")"
if [ "$version" = "$oldversion" ]; then
echo 'update.sh: New version same as old version, nothing to do.'
exit 0
fi
sed -i -e "/version\s*=/ s|\"$oldversion\"|\"$version\"|" "$pkgpath"
for system in aarch64-linux armv7l-linux x86_64-linux; do
url="$(nixeval "$attr".src.url "$system")"
curhash="$(nixeval "$attr".src.outputHash "$system")"
newhash="$(narhash "$url")"
sed -i -e "s|\"$curhash\"|\"$newhash\"|" "$pkgpath"
done