For live-reload of Rust code into Yew projects.

src_watch_compile_loop.coffee

c = console.log.bind console

util = require 'util'
exec = util.promisify((require 'child_process').exec)
chokidar = require 'chokidar'




COMMAND_ONE = 'wasm-pack build --target web'

COMMAND_TWO = 'rollup ./main.js --format iife --file ./bundle.js'





chokidar.watch('../src').on 'all', (event, path) ->
    c event, path
    try
        { stdout, stderr } = await (exec COMMAND_ONE)
        c "stdout: #{stdout}"
        c "stderr: #{stderr}"

        try
            await (exec COMMAND_TWO)
        catch err2
            c err2
    catch err
        c err