feat(packages): Implement cosmos-theta-testnet package

Author: PetarKirov

overlay.nix

@@ -6,8 +6,11 @@ _finalNixpkgs: prevNixpkgs: let
   solana-full-sdk = prevNixpkgs.callPackage ./packages/solana-full-sdk {
     inherit solana-rust-artifacts solana-bpf-tools;
   };
+
+  cosmos-theta-testnet = prevNixpkgs.callPackage ./packages/cosmos-theta-testnet {};
 in {
   metacraft-labs = rec {
     solana = solana-full-sdk;
+    inherit cosmos-theta-testnet;
   };
 }

packages/cosmos-theta-testnet/default.nix

@@ -0,0 +1,46 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  buildGoModule,
+  fetchurl,
+}: let
+  genesis = fetchurl {
+    url = "https://github.com/hyphacoop/testnets/raw/add-theta-testnet/v7-theta/local-testnet/genesis.json.gz";
+    sha256 = "0041873l59xapdxgb22b61rvqqp48laa3a5xcyim2dmjbc01zb5b";
+  };
+
+  validator_key = fetchurl {
+    url = "https://github.com/hyphacoop/testnets/raw/add-theta-testnet/v7-theta/local-testnet/priv_validator_key.json";
+    sha256 = "0h4qx6iaqvklrzhj15nz8lz61ckf4dbfwp93fafmy4c2dc43fva8";
+  };
+in
+  buildGoModule rec {
+    pname = "cosmos-theta-testnet";
+    version = "1.0.0";
+
+    src = fetchFromGitHub {
+      owner = "cosmos";
+      repo = "gaia";
+      rev = "edb81681654d0d111652df9fd933ed6e69d3c9fe";
+      sha256 = "sha256-x0CvVxGKeDPY/oKHSUYffvFq0x83jfe2O7GSLJ8zevc=";
+    };
+
+    preCheck = ''
+      export HOME=$TMPDIR
+    '';
+    vendorSha256 = "sha256-fGRLYkxZDowkuHcX26aRclLind0PRKkC64CQBVrnBr8=";
+    doCheck = false;
+    meta = with lib; {
+      description = "Simple command-line snippet manager, written in Go";
+      homepage = "https://github.com/cosmos/gaia";
+      license = licenses.mit;
+      maintainers = with maintainers; [];
+    };
+
+    postInstall = ''
+      mkdir $out/data
+      gunzip -c ${genesis} > $out/data/genesis.json
+      cp ${validator_key} $out/data/priv_validator_key.json
+    '';
+  }

shell.nix

@@ -10,6 +10,7 @@ with pkgs;
 
       # Packages defined in this repo
       metacraft-labs.solana
+      metacraft-labs.cosmos-theta-testnet
     ];
 
     shellHook = ''