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build avif_native from source for nix

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This commit is contained in:
Henry Hiles 2026-11-12 00:01:29 -05:00
commit 0c864d613a
Signed by: Henry-Hiles
SSH key fingerprint: SHA256:VKQUdS31Q90KvX7EkKMHMBpUspcmItAh86a+v7PGiIs
1 changed files with 15 additions and 29 deletions
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44
linux/nix/pkg/avif_native.nix
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@ -1,24 +1,11 @@
# avif_native's build hook downloads its prebuilt library, which the sandbox # avif_native's build hook downloads its prebuilt library, which the sandbox
# can't do, so bundle it and point the manifest at the local copy instead # can't do, so build it from source against nixpkgs' libavif, and point the
# manifest at it
{ {
stdenv, stdenv,
fetchurl, libavif,
jq, jq,
}: }:
let
artifacts = {
x86_64-linux = {
arch = "x64";
sha256 = "fa36210bc95b70abd14c20fd626204f57d0ef947297e9ff8ee66855c01e2c17f";
};
aarch64-linux = {
arch = "arm64";
sha256 = "163487e98b5eee0676be0dc8d3f60b5e0e5b67191a8a0a2abb5c8fad14a3a506";
};
};
inherit (artifacts.${stdenv.hostPlatform.system}) arch sha256;
key = "linux-${arch}-decode-dav1d";
in
{ version, src, ... }: { version, src, ... }:
stdenv.mkDerivation { stdenv.mkDerivation {
pname = "avif_native"; pname = "avif_native";
@ -26,24 +13,23 @@ stdenv.mkDerivation {
inherit (src) passthru; inherit (src) passthru;
nativeBuildInputs = [ jq ]; nativeBuildInputs = [ jq ];
buildInputs = [ libavif ];
library = fetchurl { buildPhase = ''
url = "https://github.com/Zhangw1998/avif_native/releases/download/native-v0.2.0/${key}-libavif_native.so.gz"; $CC -shared -fPIC src/avif_shim.c -lavif -o native/libavif_native.so
inherit sha256; '';
};
# The hook checksums the library, so it must stay byte-identical # The hook checksums the library, so it mustn't change after it's hashed
dontFixup = true; dontFixup = true;
# Nexus only decodes, with dav1d, see hooks.user_defines in pubspec.yaml
installPhase = '' installPhase = ''
runHook preInstall
cp -r . $out cp -r . $out
chmod -R u+w $out jq --arg hash "$(sha256sum native/libavif_native.so | cut -d " " -f 1)" \
gunzip -c $library > $out/native/libavif_native.so '.artifacts |= with_entries(
jq '.artifacts["${key}"].path = "libavif_native.so"' \ if .key | test("^linux-.*-decode-dav1d$")
native/manifest.json > $out/native/manifest.json then .value += { path: "libavif_native.so", librarySha256: $hash }
else . end
runHook postInstall )' native/manifest.json > $out/native/manifest.json
''; '';
} }