cargo-gpu-new: make cargo-generate dependency optional

Author: Firestar99

crates/cargo-gpu/Cargo.toml

@@ -8,7 +8,10 @@ readme.workspace = true
 keywords.workspace = true
 license.workspace = true
 default-run = "cargo-gpu"
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[features]
+default = ["cargo-generate"]
+cargo-generate = ["dep:cargo-generate"]
 
 [dependencies]
 cargo_metadata.workspace = true
@@ -22,7 +25,7 @@ serde.workspace = true
 serde_json.workspace = true
 semver.workspace = true
 dunce.workspace = true
-cargo-generate = "0.23.8"
+cargo-generate = { version = "0.23.8", optional = true }
 
 [dev-dependencies]
 cargo-gpu-install = { workspace = true, features = ["test"] }

crates/cargo-gpu/src/lib.rs

@@ -58,6 +58,7 @@ pub use metadata::MetadataCache;
 mod build;
 mod config;
 mod dump_usage;
+#[cfg(feature = "cargo-generate")]
 mod generate;
 mod linkage;
 mod lockfile;
@@ -81,6 +82,7 @@ pub enum Command {
     Clippy(Box<build::Build>),
 
     /// Generate a new rust-gpu project from a template
+    #[cfg(feature = "cargo-generate")]
     New(generate::Generate),
 
     /// Show some useful values.
@@ -147,6 +149,7 @@ impl Command {
                 }
                 command.run()?;
             }
+            #[cfg(feature = "cargo-generate")]
             Self::New(generate) => generate.run()?,
             Self::Show(show) => show.run()?,
             Self::DumpUsage => dump_usage::dump_full_usage_for_readme()?,