--- /dev/null
+// 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()
+ , writeStreamAtomic = require('fs-write-stream-atomic')
+ , cachedPackageRoot = require("./cache/cached-package-root.js")
+
+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, null, null, false, function (er, data) {
+ if (er) return cb(er)
+
+ // scoped packages get special treatment
+ var name = data.name
+ if (name[0] === "@") name = name.substr(1).replace(/\//g, "-")
+ var fname = name + "-" + data.version + ".tgz"
+
+ var cached = path.join(cachedPackageRoot(data), "package.tgz")
+ , from = fs.createReadStream(cached)
+ , to = writeStreamAtomic(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)
+ }
+ })
+}