bk: init at 0.6.0

add `mainProgram`

move package to `pkgs/by-name`

pkgs/by-name/bk/bk/package.nix

@@ -0,0 +1,38 @@
+{ fetchCrate
+, go-md2man
+, installShellFiles
+, lib
+, rustPlatform
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "bk";
+  version = "0.6.0";
+
+  src = fetchCrate {
+    inherit pname version;
+    hash = "sha256-rSMvx/zUZqRRgj48TVVG7RwQT8e70m0kertRJysDY4Y=";
+  };
+
+  cargoHash = "sha256-pE5loMwNMdHL3GODiw3kVVHj374hf3+vIDEYTqvx5WI=";
+
+  nativeBuildInputs = [ go-md2man installShellFiles ];
+
+  postBuild = ''
+    sed -i '$ a # Source and further info' README.md
+    sed -i '$ a https://github.com/aeosynth/bk' README.md
+    go-md2man -in README.md -out bk.1
+  '';
+
+  postInstall = ''
+    installManPage bk.?
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/aeosynth/bk";
+    description = "A terminal epub reader written in rust";
+    license = licenses.mit;
+    maintainers = with maintainers; [ vuimuich ];
+    mainProgram = "bk";
+  };
+}