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// npm pack <pkg>
// Packs the specified package into a .tgz file, which can then
// be installed.
module.exports = pack
var npm = require("./npm.js")
, install = require("./install.js")
, cache = require("./cache.js")
, fs = require("graceful-fs")
, chain = require("slide").chain
, path = require("path")
, cwd = process.cwd()
pack.usage = "npm pack <pkg>"
// if it can be installed, it can be packed.
pack.completion = install.completion
function pack (args, silent, cb) {
if (typeof cb !== "function") cb = silent, silent = false
if (args.length === 0) args = ["."]
chain(args.map(function (arg) { return function (cb) {
pack_(arg, cb)
}}), function (er, files) {
if (er || silent) return cb(er, files)
printFiles(files, cb)
})
}
function printFiles (files, cb) {
files = files.map(function (file) {
return path.relative(cwd, file)
})
console.log(files.join("\n"))
cb()
}
// add to cache, then cp to the cwd
function pack_ (pkg, cb) {
cache.add(pkg, function (er, data) {
if (er) return cb(er)
var fname = path.resolve(data._id.replace(/@/g, "-") + ".tgz")
, cached = path.resolve( npm.cache
, data.name
, data.version
, "package.tgz" )
, from = fs.createReadStream(cached)
, to = fs.createWriteStream(fname)
, errState = null
from.on("error", cb_)
to.on("error", cb_)
to.on("close", cb_)
from.pipe(to)
function cb_ (er) {
if (errState) return
if (er) return cb(errState = er)
cb(null, fname)
}
})
}