1 files changed, 187 insertions, 0 deletions
diff --git a/deps/npm/node_modules/bin-links/index.js b/deps/npm/node_modules/bin-links/index.js
new file mode 100644
index 0000000000..e6370acad5
--- /dev/null
+++ b/deps/npm/node_modules/bin-links/index.js
@@ -0,0 +1,187 @@
+'use strict'
+
+const path = require('path')
+const fs = require('graceful-fs')
+const linkIfExists = require('gentle-fs').linkIfExists
+const cmdShimIfExists = require('cmd-shim').ifExists
+const asyncMap = require('slide').asyncMap
+const BB = require('bluebird')
+const open = BB.promisify(fs.open)
+const close = BB.promisify(fs.close)
+const stat = BB.promisify(fs.stat)
+const chmod = BB.promisify(fs.chmod)
+const Transform = require('stream').Transform
+const fsWriteStreamAtomic = require('fs-write-stream-atomic')
+
+module.exports = BB.promisify(binLinks)
+
+function binLinks (pkg, folder, global, opts, cb) {
+  // if it's global, and folder is in {prefix}/node_modules,
+  // then bins are in {prefix}/bin
+  // otherwise, then bins are in folder/../.bin
+  var parent = pkg.name && pkg.name[0] === '@' ? path.dirname(path.dirname(folder)) : path.dirname(folder)
+  var gnm = global && opts.globalDir
+  var gtop = parent === gnm
+
+  opts.log.info('linkStuff', opts.pkgId)
+  opts.log.silly('linkStuff', opts.pkgId, 'has', parent, 'as its parent node_modules')
+  if (global) opts.log.silly('linkStuff', opts.pkgId, 'is part of a global install')
+  if (gnm) opts.log.silly('linkStuff', opts.pkgId, 'is installed into a global node_modules')
+  if (gtop) opts.log.silly('linkStuff', opts.pkgId, 'is installed into the top-level global node_modules')
+
+  asyncMap(
+    [linkBins, linkMans],
+    function (fn, cb) {
+      if (!fn) return cb()
+      opts.log.verbose(fn.name, opts.pkgId)
+      fn(pkg, folder, parent, gtop, opts, cb)
+    },
+    cb
+  )
+}
+
+function isHashbangFile (file) {
+  return open(file, 'r').then((fileHandle) => {
+    return new BB((resolve, reject) => {
+      fs.read(fileHandle, Buffer.from(new Array(2)), 0, 2, 0, function (err, bytesRead, buffer) {
+        close(fileHandle).then(() => {
+          resolve(!err && buffer.toString() === '#!')
+        }).catch(reject)
+      })
+    })
+  })
+}
+
+function dos2Unix (file) {
+  return stat(file).then((stats) => {
+    let previousChunkEndedInCR = false
+    return new BB((resolve, reject) => {
+      fs.createReadStream(file)
+        .on('error', reject)
+        .pipe(new Transform({
+          transform: function (chunk, encoding, done) {
+            let data = chunk.toString()
+            if (previousChunkEndedInCR) {
+              data = '\r' + data
+            }
+            if (data[data.length - 1] === '\r') {
+              data = data.slice(0, -1)
+              previousChunkEndedInCR = true
+            } else {
+              previousChunkEndedInCR = false
+            }
+            done(null, data.replace(/\r\n/g, '\n'))
+          },
+          flush: function (done) {
+            if (previousChunkEndedInCR) {
+              this.push('\r')
+            }
+            done()
+          }
+        }))
+        .on('error', reject)
+        .pipe(fsWriteStreamAtomic(file))
+        .on('error', reject)
+        .on('finish', function () {
+          resolve(chmod(file, stats.mode))
+        })
+    })
+  })
+}
+
+function getLinkOpts (opts, gently) {
+  return Object.assign({}, opts, { gently: gently })
+}
+
+function linkBins (pkg, folder, parent, gtop, opts, cb) {
+  if (!pkg.bin || (!gtop && path.basename(parent) !== 'node_modules')) {
+    return cb()
+  }
+  var linkOpts = getLinkOpts(opts, gtop && folder)
+  var execMode = parseInt('0777', 8) & (~opts.umask)
+  var binRoot = gtop ? opts.globalBin
+                     : path.resolve(parent, '.bin')
+  opts.log.verbose('linkBins', [pkg.bin, binRoot, gtop])
+
+  asyncMap(Object.keys(pkg.bin), function (bin, cb) {
+    var dest = path.resolve(binRoot, bin)
+    var src = path.resolve(folder, pkg.bin[bin])
+
+    linkBin(src, dest, linkOpts, function (er) {
+      if (er) return cb(er)
+      // bins should always be executable.
+      // XXX skip chmod on windows?
+      fs.chmod(src, execMode, function (er) {
+        if (er && er.code === 'ENOENT' && opts.ignoreScripts) {
+          return cb()
+        }
+        if (er) return cb(er)
+        isHashbangFile(src).then((isHashbang) => {
+          if (isHashbang) {
+            opts.log.silly('linkBins', 'Converting line endings of hashbang file:', src)
+            return dos2Unix(src)
+          }
+        }).then(() => {
+          if (!gtop) return cb()
+          var dest = path.resolve(binRoot, bin)
+          var out = opts.parseable
+                  ? dest + '::' + src + ':BINFILE'
+                  : dest + ' -> ' + src
+
+          if (!opts.json && !opts.parseable) {
+            opts.log.clearProgress()
+            console.log(out)
+            opts.log.showProgress()
+          }
+          cb()
+        }).catch(cb)
+      })
+    })
+  }, cb)
+}
+
+function linkBin (from, to, opts, cb) {
+  if (process.platform !== 'win32') {
+    return linkIfExists(from, to, opts, cb)
+  } else {
+    return cmdShimIfExists(from, to, cb)
+  }
+}
+
+function linkMans (pkg, folder, parent, gtop, opts, cb) {
+  if (!pkg.man || !gtop || process.platform === 'win32') return cb()
+
+  var manRoot = path.resolve(opts.prefix, 'share', 'man')
+  opts.log.verbose('linkMans', 'man files are', pkg.man, 'in', manRoot)
+
+  // make sure that the mans are unique.
+  // otherwise, if there are dupes, it'll fail with EEXIST
+  var set = pkg.man.reduce(function (acc, man) {
+    acc[path.basename(man)] = man
+    return acc
+  }, {})
+  pkg.man = pkg.man.filter(function (man) {
+    return set[path.basename(man)] === man
+  })
+
+  asyncMap(pkg.man, function (man, cb) {
+    if (typeof man !== 'string') return cb()
+    opts.log.silly('linkMans', 'preparing to link', man)
+    var parseMan = man.match(/(.*\.([0-9]+)(\.gz)?)$/)
+    if (!parseMan) {
+      return cb(new Error(
+        man + ' is not a valid name for a man file.  ' +
+        'Man files must end with a number, ' +
+        'and optionally a .gz suffix if they are compressed.'
+      ))
+    }
+
+    var stem = parseMan[1]
+    var sxn = parseMan[2]
+    var bn = path.basename(stem)
+    var manSrc = path.resolve(folder, man)
+    var manDest = path.join(manRoot, 'man' + sxn, bn)
+
+    linkIfExists(manSrc, manDest, getLinkOpts(opts, gtop && folder), cb)
+  }, cb)
+}