node/deps/npm/lib/rebuild.js

module.exports = rebuild

var readInstalled = require("./utils/read-installed.js")
  , semver = require("semver")
  , log = require("./utils/log.js")
  , path = require("path")
  , npm = require("./npm.js")
  , output = require("./utils/output.js")

rebuild.usage = "npm rebuild [<name>[@<version>] [name[@<version>] ...]]"

rebuild.completion = require("./utils/completion/installed-deep.js")

function rebuild (args, cb) {
  readInstalled(npm.prefix, function (er, data) {
    log(typeof data, "read Installed")
    if (er) return cb(er)
    var set = filter(data, args)
      , folders = Object.keys(set).filter(function (f) {
          return f !== npm.prefix
        })
    if (!folders.length) return cb()
    log.silly(folders, "rebuild set")
    npm.commands.build(folders, function (er) {
      if (er) return cb(er)
      output.write(folders.map(function (f) {
        return set[f] + " " + f
      }).join("\n"), cb)
    })
  })
}

function filter (data, args, set, seen) {
  if (!set) set = {}
  if (!seen) seen = {}
  if (set.hasOwnProperty(data.path)) return set
  if (seen.hasOwnProperty(data.path)) return set
  seen[data.path] = true
  var pass
  if (!args.length) pass = true // rebuild everything
  else if (data.name && data._id) {
    for (var i = 0, l = args.length; i < l; i ++) {
      var arg = args[i]
        , nv = arg.split("@")
        , n = nv.shift()
        , v = nv.join("@")
      if (n !== data.name) continue
      if (!semver.satisfies(data.version, v)) continue
      pass = true
      break
    }
  }
  if (pass && data._id) {
    log.verbose([data.path, data._id], "path id")
    set[data.path] = data._id
  }
  // need to also dive through kids, always.
  // since this isn't an install these won't get auto-built unless
  // they're not dependencies.
  Object.keys(data.dependencies || {}).forEach(function (d) {
    // return
    var dep = data.dependencies[d]
    if (typeof dep === "string") return
    filter(dep, args, set, seen)
  })
  return set
}