[openscad-auto] Install openscad-auto normally.

This avoids syntax errors until Rust supports the syntax in its tooling: rust-lang/cargo#12207 (comment)

Formula/openscad-auto.rb

@@ -5,29 +5,11 @@ class OpenscadAuto < Formula
   homepage "https://github.com/lgarron/scripts"
   head "https://github.com/lgarron/scripts.git", :branch => "main"
 
-  # We'd add `openscad@snapshot` as a dependency, but that formula is a cask because of the associated app and casks can't be used as dependencies. :-/
-  depends_on "terminal-notifier"
-
-  # TODO: figure out how to depend on Rust nightly.
-  # depends_on "rust"
-
-  def caveats
-    <<~EOS
-1. Make sure to run:
-
-    rustup toolchain install nightly
-
-2. Completions cannot currently be automatically installed. Run:
-
-      openscad-auto --completions fish > ~/.config/fish/completions/openscad-auto.fish"
-EOS
-  end
+  depends_on "rust" => :build
 
   def install
-    bin.install "app-tools/openscad-auto.rs" => "openscad-auto"
-    # TODO
-    # generate_completions_from_executable(bin/"openscad-auto", "--completions")
-    # generate_completions_from_executable(system "cargo", "+nightly", "-Zscript", bin/"openscad-auto", "--completions")
-    # (fish_completion/"openscad-auto.fish").write Utils.safe_popen_read({ "SHELL" => "fish" }, "/Users/lgarron/.cache/cargo/bin/cargo", "+nightly", "-Zscript", "--", "openscad-auto", "--completions", "fish")
+    system "cargo", "install", "--bin", "openscad-auto", *std_cargo_args()
+
+    generate_completions_from_executable(bin/"openscad-auto", "--completions")
   end
 end

README.md

@@ -34,7 +34,7 @@ See [`./exported/`](./exported/) for files that must be manually exported/import
 - `bash` (deprecated, except for bootstrapping)
 - `fish`
 - `bun` for TypeScript
-- `cargo +nightly -Zscript`
+- Rust
 - Homebrew
 
 ## XDG Base Directory Spec

scripts/app-tools/openscad-auto.rs

@@ -1,17 +1,3 @@
-#!/usr/bin/env -S cargo +nightly -Zscript --quiet --
----
-[package]
-edition = "2021"
-[dependencies]
-chrono = "0.4.38"
-clap = { version = "4.5.20", features = ["derive"] }
-clap_complete = "4.5.33"
-script-helpers = "0.1.0"
-shell-quote = "0.7.1"
----
-
-// TODO: split out parts of this file into conveniences.
-
 use chrono::Local;
 use clap::{CommandFactory, Parser, ValueEnum};
 use clap_complete::generator::generate;