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var log = require("../utils/log")
module.exports = function exec (cmd, args, env, pipe, cb) {
if (!cb) cb = pipe, pipe = false
if (!cb) cb = env, env = process.env
log(cmd+" "+args.map(JSON.stringify).join(" "), "exec")
var stdio = process.binding("stdio")
, fds = [ stdio.stdinFD || 0
, stdio.stdoutFD || 1
, stdio.stderrFD || 2
]
, cp = require("child_process").spawn( cmd
, args
, { env : env
, customFDs : pipe ? null : fds
}
)
, stdout = ""
, stderr = ""
cp.stdout && cp.stdout.on("data", function (chunk) {
if (chunk) stdout += chunk
})
cp.stderr && cp.stderr.on("data", function (chunk) {
if (chunk) stderr += chunk
})
cp.on("exit", function (code) {
if (code) cb(new Error("`"+cmd+"` failed with "+code))
else cb(null, code, stdout, stderr)
})
return cp
}
|
