create: add --rust option

Library/Homebrew/dev-cmd/create.rb

@@ -29,6 +29,8 @@ module Homebrew
              description: "Create a basic template for a Meson-style build."
       switch "--python",
              description: "Create a basic template for a Python build."
+      switch "--rust",
+             description: "Create a basic template for a Rust build."
       switch "--no-fetch",
              description: "Homebrew will not download <URL> to the cache and will thus not add its SHA-256 "\
                           "to the formula for you, nor will it check the GitHub API for GitHub projects "\
@@ -44,7 +46,7 @@ module Homebrew
       switch :force
       switch :verbose
       switch :debug
-      conflicts "--autotools", "--cmake", "--go", "--meson", "--python"
+      conflicts "--autotools", "--cmake", "--go", "--meson", "--python", "--rust"
     end
   end
 
@@ -81,6 +83,8 @@ module Homebrew
       :go
     elsif args.python?
       :python
+    elsif args.rust?
+      :rust
     end
 
     if fc.name.nil? || fc.name.strip.empty?

Library/Homebrew/formula_creator.rb

@@ -110,6 +110,8 @@ module Homebrew
           depends_on "ninja" => :build
         <% elsif  mode == :python %>
           depends_on "python"
+        <% elsif  mode == :rust %>
+          depends_on "rust" => :build
         <% elsif  mode.nil? %>
           # depends_on "cmake" => :build
         <% end  %>
@@ -142,6 +144,8 @@ module Homebrew
             end
         <% elsif  mode == :python %>
             virtualenv_install_with_resources
+        <% elsif  mode == :rust %>
+            system "cargo", "install", "--root", prefix, "--path", "."
         <% else  %>
             # Remove unrecognized options if warned by configure
             system "./configure", "--disable-debug",

docs/Manpage.md

@@ -807,6 +807,8 @@ a simple example. For the complete API, see:
   Create a basic template for a Meson-style build.
 * `--python`:
   Create a basic template for a Python build.
+* `--rust`:
+  Create a basic template for a Rust build.
 * `--no-fetch`:
   Homebrew will not download *`URL`* to the cache and will thus not add its SHA-256 to the formula for you, nor will it check the GitHub API for GitHub projects (to fill out its description and homepage).
 * `--HEAD`:

manpages/brew.1

@@ -1032,6 +1032,10 @@ Create a basic template for a Meson\-style build\.
 Create a basic template for a Python build\.
 .
 .TP
+\fB\-\-rust\fR
+Create a basic template for a Rust build\.
+.
+.TP
 \fB\-\-no\-fetch\fR
 Homebrew will not download \fIURL\fR to the cache and will thus not add its SHA\-256 to the formula for you, nor will it check the GitHub API for GitHub projects (to fill out its description and homepage)\.
 .