use target flag with browser and nodejs values

src/bindgen.rs

@@ -32,7 +32,7 @@ pub fn wasm_bindgen_build(
     path: &str,
     name: &str,
     disable_dts: bool,
-    nodejs: bool,
+    target: String,
 ) -> Result<(), Error> {
     let step = format!(
         "{} {}Running WASM-bindgen...",
@@ -49,7 +49,10 @@ pub fn wasm_bindgen_build(
         "--no-typescript"
     };
 
-    let nodejs_arg = if nodejs { "--nodejs" } else { "" };
+    let target_arg = match target.as_str() {
+        "nodejs" => "--nodejs",
+        _ => "--browser",
+    };
 
     let output = Command::new("wasm-bindgen")
         .current_dir(path)
@@ -57,7 +60,7 @@ pub fn wasm_bindgen_build(
         .arg("--out-dir")
         .arg("./pkg")
         .arg(dts_arg)
-        .arg(nodejs_arg)
+        .arg(target_arg)
         .output()?;
     pb.finish();
     if !output.status.success() {

src/command.rs

@@ -28,11 +28,9 @@ pub enum Command {
         /// this flag will disable generating this TypeScript file.
         disable_dts: bool,
 
-        #[structopt(long = "nodejs")]
-        /// This flag will tailor output for Node instead of browsers, allowing
-        /// for native usage of require of the generated JS and internally using
-        /// require instead of ES modules. 
-        nodejs: bool,
+        #[structopt(long = "target", short = "t", default_value = "browser")]
+        /// Sets the target environment. [possible values: browser, nodejs]
+        target: String,
     },
 
     #[structopt(name = "pack")]
@@ -84,8 +82,8 @@ pub fn run_wasm_pack(command: Command) -> result::Result<(), Error> {
             path,
             scope,
             disable_dts,
-            nodejs,
-        } => init(path, scope, disable_dts, nodejs),
+            target,
+        } => init(path, scope, disable_dts, target),
         Command::Pack { path } => pack(path),
         Command::Publish { path } => publish(path),
         Command::Login {
@@ -132,7 +130,7 @@ fn init(
     path: Option<String>,
     scope: Option<String>,
     disable_dts: bool,
-    nodejs: bool,
+    target: String,
 ) -> result::Result<(), Error> {
     let started = Instant::now();
 
@@ -145,7 +143,7 @@ fn init(
     readme::copy_from_crate(&crate_path)?;
     bindgen::cargo_install_wasm_bindgen()?;
     let name = manifest::get_crate_name(&crate_path)?;
-    bindgen::wasm_bindgen_build(&crate_path, &name, disable_dts, nodejs)?;
+    bindgen::wasm_bindgen_build(&crate_path, &name, disable_dts, target)?;
     PBAR.message(&format!(
         "{} Done in {}",
         emoji::SPARKLE,