Setting up nix is optional

src/cli.rs

@@ -212,6 +212,10 @@ pub enum HcScaffold {
  /// Name of the example to scaffold. One of ['hello-world', 'forum'].
  example: Option<Example>,
 
+ #[structopt(long)]
+ /// Whether to setup the holonix development environment for this web-app
+ setup_nix: Option<bool>,
+
  #[structopt(short, long)]
  /// The template to scaffold the example for
  /// Must be an option from the built-in templates: "vanilla", "vue", "lit", "svelte"
@@ -702,7 +706,7 @@ Collection "{}" scaffolded!
  println!("{}", i);
  }
  }
- HcScaffold::Example { example, template } => {
+ HcScaffold::Example { example, template, setup_nix } => {
  let example = match example {
  Some(e) => e,
  None => choose_example()?,
@@ -914,11 +918,13 @@ Collection "{}" scaffolded!
  file_tree.build(&app_dir)?;
 
  // set up nix
- if let Err(err) = setup_nix_developer_environment(&app_dir) {
- fs::remove_dir_all(&app_dir)?;
+ if setup_nix == Some(true) || setup_nix == None {
+ if let Err(err) = setup_nix_developer_environment(&app_dir) {
+ fs::remove_dir_all(&app_dir)?;
 
- return Err(err)?;
- }
+ return Err(err)?;
+ }
+ };
 
  setup_git_environment(&app_dir)?;