add nix flake
Also add `.envrc` for direnv + Nix users. This makes developing locally easier for us NixOS folks. The flake itself will allow NixOS users to pull code directly from Conduit's repository, making it completely trivial to stay up-to-date with every commit. I'd also like to add a NixOS module directly to this repository at some point so that new configuration options will be available in the NixOS module faster. But for now, NixOS users can simply override `serivces.matrix-conduit.package` and get pretty much all the functionality. I've added myself to the `CODEOWNERS` file for the Nix files, since I am willing to maintain this stuff. I use Conduit on NixOS so I'm personally invested in having this work. Lastly, `.gitignore` was updated to exclude symlinks created by `direnv` and `nix build` and other such Nix commands. This doesn't come without maintenance burden, however: * The `sha256` in `flake.nix` will need to be updated whenever Conduit's MSRV is updated, but that should be pretty infrequent. * `nix flake update` should be run every so often to pull in updates to `nixpkgs` and other flake inputs. I think downstream users can also override this themselves with `inputs.<name>.inputs.<name>.follows`. * `nix flake check` should be run in CI to ensure Nix builds keep working. * `nixpkgs-fmt --check $(fd '\.nix')` (or similar) should be run in CI to ensure style uniformity.
This commit is contained in:
Charles Hall
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5 changed files with 188 additions and 0 deletions
1
.envrc
Normal file
1
.envrc
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@ -0,0 +1 @@
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use flake
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6
.gitignore
vendored
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.gitignore
vendored
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@ -62,3 +62,9 @@ conduit.db
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# Etc.
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**/*.rs.bk
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# Nix artifacts
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/result*
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# Direnv cache
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/.direnv
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4
.gitlab/CODEOWNERS
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4
.gitlab/CODEOWNERS
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@ -0,0 +1,4 @@
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# Nix things
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.envrc @CobaltCause
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flake.lock @CobaltCause
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flake.nix @CobaltCause
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102
flake.lock
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102
flake.lock
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@ -0,0 +1,102 @@
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{
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"nodes": {
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"fenix": {
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"inputs": {
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"nixpkgs": [
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"nixpkgs"
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],
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"rust-analyzer-src": "rust-analyzer-src"
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},
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"locked": {
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"lastModified": 1665815894,
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"narHash": "sha256-Vboo1L4NMGLKZKVLnOPi9OHlae7uoNyfgvyIUm+SVXE=",
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"owner": "nix-community",
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"repo": "fenix",
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"rev": "2348450241a5f945f0ba07e44ecbfac2f541d7f4",
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"type": "github"
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},
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"original": {
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"owner": "nix-community",
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"repo": "fenix",
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"type": "github"
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}
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},
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"flake-utils": {
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"locked": {
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"lastModified": 1659877975,
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"narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
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"owner": "numtide",
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"repo": "flake-utils",
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"rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
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"type": "github"
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},
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"original": {
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"owner": "numtide",
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"repo": "flake-utils",
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"type": "github"
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}
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},
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"naersk": {
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"inputs": {
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"nixpkgs": [
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"nixpkgs"
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]
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},
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"locked": {
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"lastModified": 1662220400,
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"narHash": "sha256-9o2OGQqu4xyLZP9K6kNe1pTHnyPz0Wr3raGYnr9AIgY=",
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"owner": "nix-community",
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"repo": "naersk",
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"rev": "6944160c19cb591eb85bbf9b2f2768a935623ed3",
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"type": "github"
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},
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"original": {
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"owner": "nix-community",
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"repo": "naersk",
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"type": "github"
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}
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},
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"nixpkgs": {
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"locked": {
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"lastModified": 1665856037,
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"narHash": "sha256-/RvIWnGKdTSoIq5Xc2HwPIL0TzRslzU6Rqk4Img6UNg=",
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"owner": "NixOS",
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"repo": "nixpkgs",
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"rev": "c95ebc5125ffffcd431df0ad8620f0926b8125b8",
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"type": "github"
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},
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"original": {
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"owner": "NixOS",
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"repo": "nixpkgs",
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"type": "github"
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}
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},
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"root": {
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"inputs": {
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"fenix": "fenix",
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"flake-utils": "flake-utils",
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"naersk": "naersk",
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"nixpkgs": "nixpkgs"
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}
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},
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"rust-analyzer-src": {
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"flake": false,
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"locked": {
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"lastModified": 1665765556,
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"narHash": "sha256-w9L5j0TIB5ay4aRwzGCp8mgvGsu5dVJQvbEFutwr6xE=",
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"owner": "rust-lang",
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"repo": "rust-analyzer",
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"rev": "018b8429cf3fa9d8aed916704e41dfedeb0f4f78",
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"type": "github"
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},
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"original": {
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"owner": "rust-lang",
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"ref": "nightly",
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"repo": "rust-analyzer",
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"type": "github"
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}
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}
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},
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"root": "root",
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"version": 7
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}
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75
flake.nix
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75
flake.nix
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{
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs";
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flake-utils.url = "github:numtide/flake-utils";
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fenix = {
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url = "github:nix-community/fenix";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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naersk = {
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url = "github:nix-community/naersk";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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};
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outputs =
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{ self
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, nixpkgs
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, flake-utils
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, fenix
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, naersk
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}: flake-utils.lib.eachDefaultSystem (system:
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let
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pkgs = nixpkgs.legacyPackages.${system};
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# Nix-accessible `Cargo.toml`
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cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);
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# The Rust toolchain to use
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toolchain = fenix.packages.${system}.toolchainOf {
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# Use the Rust version defined in `Cargo.toml`
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channel = cargoToml.package.rust-version;
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# This will need to be updated when `package.rust-version` is changed in
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# `Cargo.toml`
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sha256 = "sha256-KXx+ID0y4mg2B3LHp7IyaiMrdexF6octADnAtFIOjrY=";
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};
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builder = (pkgs.callPackage naersk {
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inherit (toolchain) rustc cargo;
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}).buildPackage;
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in
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{
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packages.default = builder {
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src = ./.;
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nativeBuildInputs = (with pkgs.rustPlatform; [
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bindgenHook
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]);
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};
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devShells.default = pkgs.mkShell {
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# Rust Analyzer needs to be able to find the path to default crate
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# sources, and it can read this environment variable to do so
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RUST_SRC_PATH = "${toolchain.rust-src}/lib/rustlib/src/rust/library";
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# Development tools
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nativeBuildInputs = (with pkgs.rustPlatform; [
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bindgenHook
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]) ++ (with toolchain; [
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cargo
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clippy
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rust-src
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rustc
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rustfmt
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]);
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};
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checks = {
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packagesDefault = self.packages.${system}.default;
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devShellsDefault = self.devShells.${system}.default;
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};
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});
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}
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