build(snip): hidde snip into build

Author: csmoe

src/command/build.rs

@@ -245,4 +245,20 @@ impl Build {
         );
         Ok(())
     }
+
+    fn set_run_wasm_snip(&mut self, step: &Step, log: &Logger) -> Result<(), Error> {
+        let msg = format!("{}Running WASM-opt...", emoji::RUNNER);
+        PBAR.step(step, &msg);
+
+        snip::set_run_wasm_snip(
+            // FIXME(csmoe) add wasm_snip_config() in build
+            self.wasm_snip_config(),
+        )?;
+        info!(
+            &log,
+            "wasm bindings were snipped at {:#?}.",
+            &self.crate_path.join("pkg")
+        );
+        Ok(())
+    }
 }

src/command/mod.rs

@@ -4,7 +4,6 @@ mod build;
 mod login;
 mod pack;
 mod publish;
-mod snip;
 pub mod utils;
 
 use self::build::{Build, BuildMode, BuildOptions};
@@ -72,10 +71,6 @@ pub enum Command {
         /// strategies besides classic username/password entry in legacy npm.
         auth_type: Option<String>,
     },
-
-    #[structopt(name = "snip")]
-    /// Replace a wasm function with an `unreachable`.
-    Snip(SnipOptions),
 }
 
 /// Run a command with the given logger!
@@ -119,10 +114,6 @@ pub fn run_wasm_pack(command: Command, log: &Logger) -> result::Result<(), Error
             );
             login(registry, scope, always_auth, auth_type, &log)
         }
-        Command::Snip(opts) => {
-            info!(&log, "Running snip command...");
-            snip(opts)
-        }
     };
 
     match status {

src/lib.rs

@@ -32,6 +32,7 @@ pub mod manifest;
 pub mod npm;
 pub mod progressbar;
 pub mod readme;
+pub mod snip;
 
 use progressbar::ProgressOutput;
 

src/command/snip.rs renamed to src/snip.rs

@@ -3,7 +3,7 @@ use parity_wasm::elements::{self, Serialize};
 use wasm_snip;
 
 #[derive(Clone, Debug, StructOpt)]
-pub struct SnipOptions {
+pub struct WasmSnipConfig {
     input: String,
     #[structopt(long = "output", short = "o")]
     pub(crate) output: Option<String>,
@@ -16,7 +16,7 @@ pub struct SnipOptions {
     snip_rust_panicking_code: bool,
 }
 
-impl Into<wasm_snip::Options> for SnipOptions {
+impl Into<wasm_snip::Options> for WasmSnipConfig {
     fn into(self) -> wasm_snip::Options {
         wasm_snip::Options {
             input: ::std::path::PathBuf::from(self.input),
@@ -28,7 +28,7 @@ impl Into<wasm_snip::Options> for SnipOptions {
     }
 }
 
-pub(crate) fn snip(opts: SnipOptions) -> Result<(), Error> {
+pub(crate) fn run_wasm_snip(opts: WasmSnipConfig) -> Result<(), Error> {
     let module = wasm_snip::snip(opts.clone().into())?;
 
     if let Some(output) = opts.output {