feat: add --format flag

Signed-off-by: Andrew Steurer <94206073+asteurer@users.noreply.github.com>

Author: asteurer

examples/wasip2/Makefile

@@ -1,5 +1,5 @@
 generate-bindings:
-	componentize-go --world wasip2-example bindings
+	componentize-go --world wasip2-example bindings --format
 
 build-component: generate-bindings
 	componentize-go --world wasip2-example componentize

examples/wasip3/Makefile

@@ -5,7 +5,7 @@ $(GO)/bin/go:
 	tar xf $(GO).tbz
 
 generate-bindings:
-	componentize-go --world wasip3-example bindings
+	componentize-go --world wasip3-example bindings --format
 
 build-component: generate-bindings $(GO)/bin/go
 	componentize-go --world wasip3-example componentize --go $(GO)/bin/go

src/bindings.rs

@@ -8,13 +8,21 @@ pub fn generate_bindings(
     features: &[String],
     all_features: bool,
     generate_stubs: bool,
+    should_format: bool,
     output: Option<&Path>,
 ) -> Result<()> {
     let (resolve, world) = parse_wit(wit_path, world, features, all_features)?;
     let mut files = Default::default();
 
+    let format = if should_format {
+        wit_bindgen_go::Format::True
+    } else {
+        wit_bindgen_go::Format::False
+    };
+
     wit_bindgen_go::Opts {
         generate_stubs,
+        format,
         ..Default::default()
     }
     .build()

src/command.rs

@@ -89,6 +89,10 @@ pub struct Bindings {
     /// A stub function is a placeholder method which has not yet been implemented.
     #[arg(long)]
     pub generate_stubs: bool,
+
+    #[arg(long)]
+    /// Whether or not `gofmt` should be used (if present) to format generated code.
+    pub format: bool,
 }
 
 fn componentize(common: Common, componentize: Componentize) -> Result<()> {
@@ -120,6 +124,7 @@ fn bindings(common: Common, bindings: Bindings) -> Result<()> {
         &common.features,
         common.all_features,
         bindings.generate_stubs,
+        bindings.format,
         bindings.output.as_deref(),
     )
 }