手抜きspawn wrapper

spawn-promise.coffee

{spawn} = require "child_process"

runCommand = (cmd, args, opts) -> new Promise (resolve, reject) ->
  p = spawn cmd, args, opts
  buf = []
  p.stdout.on "data", (data) -> buf.push data
  p.stderr.on "data", (data) -> buf.push data
  p.on "error", reject
  p.on "close", (code) ->
    result = buf.join("").trim()
    if code then reject result else resolve result

# パイプとか使いたい場合こちらが便利
runCommandViaShell = (cmdStr, opts) -> runCommand "sh", ["-c", cmdStr], opts

module.exports = {
  runCommand
  runCommandViaShell
}