asbuild

ASBuild

A simple build tool for AssemblyScript projects, similar to cargo, etc.

Usage

asb [entry file] [options] -- [args passed to asc]

Background

AssemblyScript greater than v0.14.4 provides a asconfig.json configuration file that can be used to describe the options for building a project. ASBuild uses this and some adds defaults to create an easier CLI interface.

Defaults

Project structure

project/
  package.json   
  asconfig.json
  assembly/
    index.ts
  build/
    release/
      project.wasm
    debug/
      project.wasm

• If no entry file passed and no main field is in asconfig.json, project/assembly/index.ts is assumed.
• asconfig.json allows for options for different compile targets, e.g. release, debug, etc. asc defaults to the release target.
• The default build directory is ./build, and artifacts are placed at ./build/<target>/packageName.wasm.

Workspaces

If a workspace field is added to a top level asconfig.json file, then each path in the array is built and placed into the top level outDir.

For example,

asconfig.json:

{
  "workspace": ["a", "b"]
}

Running asb in the directory below will use the top level build directory to place all the binaries.

project/
  package.json
  asconfig.json
  a/
    asconfig.json
    assembly/
      index.ts
  b/
    asconfig.json
    assembly/
      index.ts
  build/
    release/
      a.wasm
      b.wasm
    debug/
      a.wasm
      b.wasm

To see an example in action check out the test