cwtch: init at 0.1.3

pkgs/by-name/cw/cwtch/package.nix

@@ -0,0 +1,52 @@
+{
+  buildGoModule,
+  fetchgit,
+  lib,
+}:
+buildGoModule rec {
+  pname = "libcwtch";
+  version = "0.1.3";
+  # This Gitea instance has archive downloads disabled, so: fetchgit
+  src = fetchgit {
+    url = "https://git.openprivacy.ca/cwtch.im/autobindings.git";
+    rev = "v${version}";
+    hash = "sha256-Gp6JnyjKChB7w0fUHkreu81QRXQ3YdMb2ReD/VCkVOE=";
+  };
+
+  vendorHash = "sha256-UgG/yjupUFrfjPZ4E+OM1VsWi9MuMuHxcZ4yvz+q/Y0=";
+  overrideModAttrs = (
+    old: {
+      preBuild = ''
+        make lib.go
+      '';
+    }
+  );
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace-fail '$(shell git describe --tags)' v${version} \
+      --replace-fail '$(shell git log -1 --format=%cd --date=format:%G-%m-%d-%H-%M)' 1980-01-01-00-00
+  '';
+
+  buildPhase = ''
+    runHook preBuild
+    make linux
+    runHook postBuild
+  '';
+
+  installPhase = ''
+    runHook preInstall
+    install -D build/linux/libCwtch.h -t $out/include
+    install -D build/linux/libCwtch.*.so $out/lib/libCwtch.so
+    runHook postInstall
+  '';
+
+  meta = {
+    description = "Decentralized, privacy-preserving, multi-party messaging protocol";
+    homepage = "https://cwtch.im/";
+    changelog = "https://docs.cwtch.im/changelog";
+    license = lib.licenses.mit;
+    platforms = lib.platforms.linux;
+    maintainers = [ lib.maintainers.gmacon ];
+  };
+}