Remove wabt dependency (#156)

* Use WasmTransformer.stripCustomSections

* Remove wabt dependency

Brewfile

@@ -2,5 +2,4 @@ brew "pre-commit"
 brew "swiftformat"
 brew "swiftlint"
 brew "binaryen"
-brew "wabt"
 brew "wasmer"

Package.resolved

@@ -168,8 +168,8 @@
         "repositoryURL": "https://github.com/swiftwasm/WasmTransformer",
         "state": {
           "branch": null,
-          "revision": "c7cb17309372e57c9f75f7abd5c7323d667eaddc",
-          "version": "0.0.1"
+          "revision": "74bd6559322b43390eb6da5a134f5af7f117bd01",
+          "version": "0.0.2"
         }
       },
       {

Package.swift

@@ -26,7 +26,7 @@ let package = Package(
     .package(url: "https://github.com/vapor/vapor.git", from: "4.29.3"),
     .package(url: "https://github.com/apple/swift-crypto.git", from: "1.1.0"),
     .package(url: "https://github.com/JohnSundell/Splash.git", from: "0.14.0"),
-    .package(url: "https://github.com/swiftwasm/WasmTransformer", .upToNextMinor(from: "0.0.1")),
+    .package(url: "https://github.com/swiftwasm/WasmTransformer", .upToNextMinor(from: "0.0.2")),
   ],
   targets: [
     // Targets are the basic building blocks of a package. A target can define a module

Sources/carton-release/Formula.swift

@@ -46,7 +46,6 @@ struct Formula: ParsableCommand {
       depends_on :xcode => "11.4"
       depends_on "wasmer"
       depends_on "binaryen"
-      depends_on "wabt"
 
       stable do
         version "\#(version)"

Sources/carton/Commands/Bundle.swift

@@ -17,6 +17,7 @@ import CartonHelpers
 import Crypto
 import SwiftToolchain
 import TSCBasic
+import WasmTransformer
 
 private let dependency = Dependency(
   fileName: "bundle.js",
@@ -57,7 +58,8 @@ struct Bundle: ParsableCommand {
       newline: true
     )
 
-    try ProcessRunner(["wasm-strip", mainWasmPath.pathString], terminal).waitUntilFinished()
+    try strip(mainWasmPath)
+
     try terminal.logLookup(
       "After applying `wasm-strip` the main binary size is ",
       localFileSystem.humanReadableFileSize(mainWasmPath),
@@ -73,7 +75,7 @@ struct Bundle: ParsableCommand {
       terminal
     ).waitUntilFinished()
     try terminal.logLookup(
-      "After applying `wasm-opt` the main binary size is ",
+      "After stripping debug info the main binary size is ",
       localFileSystem.humanReadableFileSize(optimizedPath),
       newline: true
     )
@@ -89,6 +91,12 @@ struct Bundle: ParsableCommand {
     terminal.write("Bundle generation finished successfully\n", inColor: .green, bold: true)
   }
 
+  func strip(_ wasmPath: AbsolutePath) throws {
+    let binary = try localFileSystem.readFileContents(wasmPath)
+    let strippedBinary = try stripCustomSections(binary.contents)
+    try localFileSystem.writeFileContents(wasmPath, bytes: .init(strippedBinary))
+  }
+
   func copyToBundle(
     terminal: InteractiveWriter,
     optimizedPath: AbsolutePath,

install_ubuntu_deps.sh

@@ -2,10 +2,6 @@
 
 set -ex
 
-curl -L -v -o wabt.tar.gz https://github.com/WebAssembly/wabt/releases/download/1.0.19/wabt-1.0.19-ubuntu.tar.gz
-tar xzvf wabt.tar.gz
-cp wabt-1.0.19/bin/* /usr/local/bin
-
 curl -L -v -o binaryen.tar.gz https://github.com/WebAssembly/binaryen/releases/download/version_97/binaryen-version_97-x86_64-linux.tar.gz
 tar xzvf binaryen.tar.gz
 cp binaryen-version_97/bin/* /usr/local/bin