update packages, fix cargo-workspaces

nix/nixpkgs/overlays/10-basic.nix

@@ -6,6 +6,8 @@ self: super: rec {
     sha256 = "1zxgy3znw0i6h1lxhmnx001c1pdcyszwqj8f0d0092nmnngdzsrl";
   };
 
+  cargo-workspaces = self.callPackage ./packages/cargo-workspaces.nix { };
+
   # kitty = super.kitty.overrideAttrs (existing: {
   #   patches = [
   #     # From https://github.com/NixOS/nixpkgs/blob/master/pkgs/applications/terminal-emulators/kitty/default.nix

nix/nixpkgs/overlays/packages/cargo-workspaces.nix

@@ -0,0 +1,55 @@
+{ lib
+, rustPlatform
+, fetchCrate
+, pkg-config
+, libgit2_1_6
+, libssh2
+, openssl
+, zlib
+, stdenv
+, darwin
+}:
+
+rustPlatform.buildRustPackage rec {
+  pname = "cargo-workspaces";
+  version = "0.3.0";
+
+  src = fetchCrate {
+    inherit pname version;
+    hash = "sha256-1wNoMVfouuPRGFGB6XIhgeeWgknxMctrBl5Vfco6qug=";
+  };
+
+  cargoHash = "sha256-OJGqIo6mYqXjmQb/2CVVTskecYZretw+K46Fvbu/PcQ=";
+
+  nativeBuildInputs = [
+    pkg-config
+  ];
+
+  buildInputs = [
+    libgit2_1_6
+    libssh2
+    openssl
+    zlib
+  ] ++ lib.optionals stdenv.isDarwin [
+    darwin.apple_sdk.frameworks.Security
+    darwin.apple_sdk_11_0.frameworks.SystemConfiguration
+  ];
+
+  env = {
+    LIBSSH2_SYS_USE_PKG_CONFIG = true;
+  };
+
+  meta = with lib; {
+    description = "A tool for managing cargo workspaces and their crates, inspired by lerna";
+    longDescription = ''
+      A tool that optimizes the workflow around cargo workspaces with
+      git and cargo by providing utilities to version, publish, execute
+      commands and more.
+    '';
+    homepage = "https://github.com/pksunkara/cargo-workspaces";
+    changelog = "https://github.com/pksunkara/cargo-workspaces/blob/v${version}/CHANGELOG.md";
+    license = licenses.mit;
+    maintainers = with maintainers; [ figsoda macalinao matthiasbeyer ];
+    mainProgram = "cargo-workspaces";
+  };
+}

scripts/igm-switch

@@ -9,7 +9,7 @@ SYSTEM_CONFIG_ATTRIBUTE=$(system_config_attribute)
 echo "Using flake at path $FLAKE_PATH."
 
 SHOW_TRACE=''
-if [ $1 = '--debug' ]; then
+if [ ${1:none} = '--debug' ]; then
     SHOW_TRACE='--show-trace'
 fi