77 lines
3.1 KiB
Nix
77 lines
3.1 KiB
Nix
{ fractal-next
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, fetchFromGitLab
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, git
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, rustPlatform
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, unstableGitUpdater
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}:
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let
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self = fractal-next.overrideAttrs (upstream: rec {
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pname = "fractal-latest";
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version = "unstable-2023-11-24";
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src = fetchFromGitLab {
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domain = "gitlab.gnome.org";
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owner = "GNOME";
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repo = "fractal";
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rev = "a9ac0d482cef3a3c84a50ca0706c2a9ab4d4f468";
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hash = "sha256-OR+SRS4xs3rLGGHhsWxTatpiN6SMGeyhhr9zO+vxz+E=";
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};
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cargoDeps = rustPlatform.importCargoLock {
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lockFile = ./Cargo.lock;
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outputHashes = {
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# hashes for git dependencies (?). when updating the package:
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# 1. reset this to {}
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# 2. build, it will fail, but warn that a hash is missing here
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# 3. add "<crate_thats_missing_hash>" = "";
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# 4. repeat until no more crates are missing hashes
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# 5. build, and nix will let you know what the actual hashes should be
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# TODO: alternative is to set `allowBuiltinFetchGit = true;`
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"mas-http-0.5.0-rc.2" = "sha256-XH+I5URcbkSY4NDwfOFhIjb+/swuGz6n9hKufziPgoY=";
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"matrix-sdk-0.6.2" = "sha256-X+4077rlaE8zjXHXPUfiYwa/+Bg0KTFrcsAg7yCz4ug=";
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};
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};
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nativeBuildInputs = (upstream.nativeBuildInputs or []) ++ [
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git # only necessary when profile is development or hack
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];
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mesonFlags = (upstream.mesonFlags or []) ++ [
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# profile: default, beta, development, hack.
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# - default causes a 2hr+ build, 98% of that being `rustc fractal` using a single core
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# - development has the same problem
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# - hack brings the build down to ~5 minutes, possibly because it doesn't pass --release to cargo
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# - it still has rustc using ~4 cores typical
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# development and hack both require `git`
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"-Dprofile=hack"
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];
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# codegen settings, see: <https://doc.rust-lang.org/rustc/codegen-options/index.html>
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# trying to speed up compilation. see deep dive: <https://fasterthanli.me/articles/why-is-my-rust-build-so-slow>
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# - `RUSTC_BOOTSTRAP=1` allows using nightly rustc options
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# postPatch = (upstream.postPatch or "") + ''
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# # sed -i "s/^codegen-units = .*$/codegen-units = $NIX_BUILD_CORES/" Cargo.toml
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# sed -i 's/^codegen-units = .*$/codegen-units = 256/' Cargo.toml
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# sed -i 's/^lto = .*$/lto = "off"/' Cargo.toml
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# sed -i 's/debug = true/debug = false/' Cargo.toml
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# sed -i "s/cargo_options,/cargo_options + [ '-j$NIX_BUILD_CORES', '--verbose', '--timings' ],/" src/meson.build
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# '';
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# preConfigure = (upstream.preConfigure or "") + ''
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# export CARGO_BUILD_JOBS=$NIX_BUILD_CORES
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# export RUSTFLAGS="-C codegen-units=256"
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# '';
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passthru.updateScript = unstableGitUpdater {};
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});
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in self // {
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meta = self.meta // {
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# ensure nix thinks the canonical position of this derivation is inside my own repo,
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# not upstream nixpkgs repo. this ensures that the updateScript can patch the version/hash
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# of the right file. meta.position gets overwritten if set in overrideAttrs, hence this
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# manual `//` hack
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position = let
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pos = builtins.unsafeGetAttrPos "updateScript" self.passthru;
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in "${pos.file}:${builtins.toString pos.line}";
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};
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}
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