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?? ..
?? access.js(3.23 KB)
?? adduser.js(3.98 KB)
?? bin.js(515 B)
?? bugs.js(857 B)
?? build.js(8.5 KB)
?? cache
?? cache.js(10.17 KB)
?? completion.js(7.06 KB)
?? config
?? config.js(8.27 KB)
?? dedupe.js(5.27 KB)
?? deprecate.js(1.4 KB)
?? dist-tag.js(3.67 KB)
?? docs.js(1.03 KB)
?? edit.js(985 B)
?? explore.js(1.63 KB)
?? fetch-package-metadata.js(11.5 KB)
?? fetch-package-metadata.md(1.76 KB)
?? get.js(235 B)
?? help-search.js(5.65 KB)
?? help.js(6.19 KB)
?? init.js(1.27 KB)
?? install
?? install-test.js(507 B)
?? install.js(25.49 KB)
?? link.js(5.55 KB)
?? logout.js(1.1 KB)
?? ls.js(13.94 KB)
?? npm.js(11.23 KB)
?? outdated.js(12.1 KB)
?? owner.js(7.55 KB)
?? pack.js(1.79 KB)
?? ping.js(556 B)
?? prefix.js(330 B)
?? prune.js(1.5 KB)
?? publish.js(5.02 KB)
?? rebuild.js(2.11 KB)
?? repo.js(1.43 KB)
?? restart.js(64 B)
?? root.js(316 B)
?? run-script.js(5.16 KB)
?? search.js(7.76 KB)
?? set.js(276 B)
?? shrinkwrap.js(6.54 KB)
?? star.js(1.17 KB)
?? stars.js(1.1 KB)
?? start.js(62 B)
?? stop.js(61 B)
?? substack.js(509 B)
?? tag.js(1.08 KB)
?? team.js(1.41 KB)
?? test.js(294 B)
?? unbuild.js(3.97 KB)
?? uninstall.js(2.31 KB)
?? unpublish.js(3.55 KB)
?? update.js(1.76 KB)
?? utils
?? version.js(7.71 KB)
?? view.js(9.12 KB)
?? visnup.js(4.01 KB)
?? whoami.js(1.42 KB)
?? xmas.js(1.57 KB)

Editing: cache.js

// XXX lib/utils/tar.js and this file need to be rewritten.

// URL-to-cache folder mapping:
// : -> !
// @ -> _
// http://registry.npmjs.org/foo/version -> cache/http!/...
//

/*
fetching a URL:
1. Check for URL in inflight URLs.  If present, add cb, and return.
2. Acquire lock at {cache}/{sha(url)}.lock
   retries = {cache-lock-retries, def=10}
   stale = {cache-lock-stale, def=60000}
   wait = {cache-lock-wait, def=10000}
3. if lock can't be acquired, then fail
4. fetch url, clear lock, call cbs

cache folders:
1. urls: http!/server.com/path/to/thing
2. c:\path\to\thing: file!/c!/path/to/thing
3. /path/to/thing: file!/path/to/thing
4. git@ private: git_github.com!npm/npm
5. git://public: git!/github.com/npm/npm
6. git+blah:// git-blah!/server.com/foo/bar

adding a folder:
1. tar into tmp/random/package.tgz
2. untar into tmp/random/contents/package, stripping one dir piece
3. tar tmp/random/contents/package to cache/n/v/package.tgz
4. untar cache/n/v/package.tgz into cache/n/v/package
5. rm tmp/random

Adding a url:
1. fetch to tmp/random/package.tgz
2. goto folder(2)

adding a name@version:
1. registry.get(name/version)
2. if response isn't 304, add url(dist.tarball)

adding a name@range:
1. registry.get(name)
2. Find a version that satisfies
3. add name@version

adding a local tarball:
1. untar to tmp/random/{blah}
2. goto folder(2)

adding a namespaced package:
1. lookup registry for @namespace
2. namespace_registry.get('name')
3. add url(namespace/latest.tarball)
*/

exports = module.exports = cache

cache.unpack = unpack
cache.clean = clean
cache.read = read

var npm = require('./npm.js')
var fs = require('graceful-fs')
var writeFileAtomic = require('write-file-atomic')
var assert = require('assert')
var rm = require('./utils/gently-rm.js')
var readJson = require('read-package-json')
var log = require('npmlog')
var path = require('path')
var asyncMap = require('slide').asyncMap
var tar = require('./utils/tar.js')
var fileCompletion = require('./utils/completion/file-completion.js')
var deprCheck = require('./utils/depr-check.js')
var addNamed = require('./cache/add-named.js')
var addLocal = require('./cache/add-local.js')
var addRemoteTarball = require('./cache/add-remote-tarball.js')
var addRemoteGit = require('./cache/add-remote-git.js')
var inflight = require('inflight')
var realizePackageSpecifier = require('realize-package-specifier')
var npa = require('npm-package-arg')
var getStat = require('./cache/get-stat.js')
var cachedPackageRoot = require('./cache/cached-package-root.js')
var mapToRegistry = require('./utils/map-to-registry.js')
var output = require('./utils/output.js')

cache.usage = 'npm cache add <tarball file>' +
              '\nnpm cache add <folder>' +
              '\nnpm cache add <tarball url>' +
              '\nnpm cache add <git url>' +
              '\nnpm cache add <name>@<version>' +
              '\nnpm cache ls [<path>]' +
              '\nnpm cache clean [<pkg>[@<version>]]'

cache.completion = function (opts, cb) {
  var argv = opts.conf.argv.remain
  if (argv.length === 2) {
    return cb(null, ['add', 'ls', 'clean'])
  }

switch (argv[2]) {
    case 'clean':
    case 'ls':
      // cache and ls are easy, because the completion is
      // what ls_ returns anyway.
      // just get the partial words, minus the last path part
      var p = path.dirname(opts.partialWords.slice(3).join('/'))
      if (p === '.') p = ''
      return ls_(p, 2, cb)
    case 'add':
      // Same semantics as install and publish.
      return npm.commands.install.completion(opts, cb)
  }
}

function cache (args, cb) {
  var cmd = args.shift()
  switch (cmd) {
    case 'rm': case 'clear': case 'clean': return clean(args, cb)
    case 'list': case 'sl': case 'ls': return ls(args, cb)
    case 'add': return add(args, npm.prefix, cb)
    default: return cb('Usage: ' + cache.usage)
  }
}

// if the pkg and ver are in the cache, then
// just do a readJson and return.
// if they're not, then fetch them from the registry.
function read (name, ver, forceBypass, cb) {
  assert(typeof name === 'string', 'must include name of module to install')
  assert(typeof cb === 'function', 'must include callback')

if (forceBypass === undefined || forceBypass === null) forceBypass = true

var root = cachedPackageRoot({name: name, version: ver})
  function c (er, data) {
    if (er) log.verbose('cache', 'addNamed error for', name + '@' + ver, er)
    if (data) deprCheck(data)

return cb(er, data)
  }

if (forceBypass && npm.config.get('force')) {
    log.verbose('using force', 'skipping cache')
    return addNamed(name, ver, null, c)
  }

readJson(path.join(root, 'package', 'package.json'), function (er, data) {
    if (er && er.code !== 'ENOENT' && er.code !== 'ENOTDIR') return cb(er)

if (data) {
      if (!data.name) return cb(new Error('No name provided'))
      if (!data.version) return cb(new Error('No version provided'))
    }

if (er) return addNamed(name, ver, null, c)
    else c(er, data)
  })
}

function normalize (args) {
  var normalized = ''
  if (args.length > 0) {
    var a = npa(args[0])
    if (a.name) normalized = a.name
    if (a.rawSpec) normalized = [normalized, a.rawSpec].join('/')
    if (args.length > 1) normalized = [normalized].concat(args.slice(1)).join('/')
  }

if (normalized.substr(-1) === '/') {
    normalized = normalized.substr(0, normalized.length - 1)
  }
  normalized = path.normalize(normalized)
  log.silly('ls', 'normalized', normalized)

return normalized
}

// npm cache ls [<path>]
function ls (args, cb) {
  var prefix = npm.config.get('cache')
  if (prefix.indexOf(process.env.HOME) === 0) {
    prefix = '~' + prefix.substr(process.env.HOME.length)
  }
  ls_(normalize(args), npm.config.get('depth'), function (er, files) {
    output(files.map(function (f) {
      return path.join(prefix, f)
    }).join('\n').trim())
    cb(er, files)
  })
}

// Calls cb with list of cached pkgs matching show.
function ls_ (req, depth, cb) {
  return fileCompletion(npm.cache, req, depth, cb)
}

// npm cache clean [<path>]
function clean (args, cb) {
  assert(typeof cb === 'function', 'must include callback')

if (!args) args = []

var f = path.join(npm.cache, normalize(args))
  if (f === npm.cache) {
    fs.readdir(npm.cache, function (er, files) {
      if (er) return cb()
      asyncMap(
        files.filter(function (f) {
          return npm.config.get('force') || f !== '-'
        }).map(function (f) {
          return path.join(npm.cache, f)
        }),
        rm,
        cb
      )
    })
  } else {
    rm(f, cb)
  }
}

// npm cache add <tarball-url>
// npm cache add <pkg> <ver>
// npm cache add <tarball>
// npm cache add <folder>
cache.add = function (pkg, ver, where, scrub, cb) {
  assert(typeof pkg === 'string', 'must include name of package to install')
  assert(typeof cb === 'function', 'must include callback')

if (scrub) {
    return clean([], function (er) {
      if (er) return cb(er)
      add([pkg, ver], where, cb)
    })
  }
  return add([pkg, ver], where, cb)
}

var adding = 0
function add (args, where, cb) {
  // this is hot code.  almost everything passes through here.
  // the args can be any of:
  // ['url']
  // ['pkg', 'version']
  // ['pkg@version']
  // ['pkg', 'url']
  // This is tricky, because urls can contain @
  // Also, in some cases we get [name, null] rather
  // that just a single argument.

var usage = 'Usage:\n' +
              '    npm cache add <tarball-url>\n' +
              '    npm cache add <pkg>@<ver>\n' +
              '    npm cache add <tarball>\n' +
              '    npm cache add <folder>\n'
  var spec

log.silly('cache add', 'args', args)

if (args[1] === undefined) args[1] = null

// at this point the args length must ==2
  if (args[1] !== null) {
    spec = args[0] + '@' + args[1]
  } else if (args.length === 2) {
    spec = args[0]
  }

log.verbose('cache add', 'spec', spec)

if (!spec) return cb(usage)

adding++
  cb = afterAdd(cb)

realizePackageSpecifier(spec, where, function (err, p) {
    if (err) return cb(err)

log.silly('cache add', 'parsed spec', p)

switch (p.type) {
      case 'local':
      case 'directory':
        addLocal(p, null, cb)
        break
      case 'remote':
        // get auth, if possible
        mapToRegistry(p.raw, npm.config, function (err, uri, auth) {
          if (err) return cb(err)

addRemoteTarball(p.spec, { name: p.name }, null, auth, cb)
        })
        break
      case 'git':
      case 'hosted':
        addRemoteGit(p.rawSpec, cb)
        break
      default:
        if (p.name) return addNamed(p.name, p.spec, null, cb)

cb(new Error("couldn't figure out how to install " + spec))
    }
  })
}

function unpack (pkg, ver, unpackTarget, dMode, fMode, uid, gid, cb) {
  if (typeof cb !== 'function') {
    cb = gid
    gid = null
  }
  if (typeof cb !== 'function') {
    cb = uid
    uid = null
  }
  if (typeof cb !== 'function') {
    cb = fMode
    fMode = null
  }
  if (typeof cb !== 'function') {
    cb = dMode
    dMode = null
  }

read(pkg, ver, false, function (er) {
    if (er) {
      log.error('unpack', 'Could not read data for %s', pkg + '@' + ver)
      return cb(er)
    }
    npm.commands.unbuild([unpackTarget], true, function (er) {
      if (er) return cb(er)
      tar.unpack(
        path.join(cachedPackageRoot({ name: pkg, version: ver }), 'package.tgz'),
        unpackTarget,
        dMode, fMode,
        uid, gid,
        cb
      )
    })
  })
}

function afterAdd (cb) {
  return function (er, data) {
    adding--

if (er || !data || !data.name || !data.version) return cb(er, data)
    log.silly('cache', 'afterAdd', data.name + '@' + data.version)

// Save the resolved, shasum, etc. into the data so that the next
    // time we load from this cached data, we have all the same info.
    // Ignore if it fails.
    var pj = path.join(cachedPackageRoot(data), 'package', 'package.json')

var done = inflight(pj, cb)
    if (!done) return log.verbose('afterAdd', pj, 'already in flight; not writing')
    log.verbose('afterAdd', pj, 'not in flight; writing')

getStat(function (er, cs) {
      if (er) return done(er)
      writeFileAtomic(pj, JSON.stringify(data), { chown: cs }, function (er) {
        if (!er) log.verbose('afterAdd', pj, 'written')
        return done(null, data)
      })
    })
  }
}

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Editing: cache.js

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