1 files changed, 134 insertions, 0 deletions
diff --git a/deps/npm/node_modules/node-gyp/node_modules/fstream/examples/filter-pipe.js b/deps/npm/node_modules/node-gyp/node_modules/fstream/examples/filter-pipe.js
new file mode 100644
index 0000000000..83dadef8a6
--- /dev/null
+++ b/deps/npm/node_modules/node-gyp/node_modules/fstream/examples/filter-pipe.js
@@ -0,0 +1,134 @@
+var fstream = require('../fstream.js')
+var path = require('path')
+
+var r = fstream.Reader({
+  path: path.dirname(__dirname),
+  filter: function () {
+    return !this.basename.match(/^\./) &&
+      !this.basename.match(/^node_modules$/) &&
+      !this.basename.match(/^deep-copy$/) &&
+      !this.basename.match(/^filter-copy$/)
+  }
+})
+
+// this writer will only write directories
+var w = fstream.Writer({
+  path: path.resolve(__dirname, 'filter-copy'),
+  type: 'Directory',
+  filter: function () {
+    return this.type === 'Directory'
+  }
+})
+
+var indent = ''
+
+r.on('entry', appears)
+r.on('ready', function () {
+  console.error('ready to begin!', r.path)
+})
+
+function appears (entry) {
+  console.error(indent + 'a %s appears!', entry.type, entry.basename, typeof entry.basename)
+  if (foggy) {
+    console.error('FOGGY!')
+    var p = entry
+    do {
+      console.error(p.depth, p.path, p._paused)
+      p = p.parent
+    } while (p)
+
+    throw new Error('\u001b[mshould not have entries while foggy')
+  }
+  indent += '\t'
+  entry.on('data', missile(entry))
+  entry.on('end', runaway(entry))
+  entry.on('entry', appears)
+}
+
+var foggy
+function missile (entry) {
+  function liftFog (who) {
+    if (!foggy) return
+    if (who) {
+      console.error('%s breaks the spell!', who && who.path)
+    } else {
+      console.error('the spell expires!')
+    }
+    console.error('\u001b[mthe fog lifts!\n')
+    clearTimeout(foggy)
+    foggy = null
+    if (entry._paused) entry.resume()
+  }
+
+  if (entry.type === 'Directory') {
+    var ended = false
+    entry.once('end', function () { ended = true })
+    return function (c) {
+      // throw in some pathological pause()/resume() behavior
+      // just for extra fun.
+      process.nextTick(function () {
+        if (!foggy && !ended) { // && Math.random() < 0.3) {
+          console.error(indent + '%s casts a spell', entry.basename)
+          console.error('\na slowing fog comes over the battlefield...\n\u001b[32m')
+          entry.pause()
+          entry.once('resume', liftFog)
+          foggy = setTimeout(liftFog, 1000)
+        }
+      })
+    }
+  }
+
+  return function (c) {
+    var e = Math.random() < 0.5
+    console.error(indent + '%s %s for %d damage!',
+      entry.basename,
+      e ? 'is struck' : 'fires a chunk',
+      c.length)
+  }
+}
+
+function runaway (entry) {
+  return function () {
+    var e = Math.random() < 0.5
+    console.error(indent + '%s %s',
+      entry.basename,
+      e ? 'turns to flee' : 'is vanquished!')
+    indent = indent.slice(0, -1)
+  }
+}
+
+w.on('entry', attacks)
+// w.on('ready', function () { attacks(w) })
+function attacks (entry) {
+  console.error(indent + '%s %s!', entry.basename,
+    entry.type === 'Directory' ? 'calls for backup' : 'attacks')
+  entry.on('entry', attacks)
+}
+
+var ended = false
+var i = 1
+r.on('end', function () {
+  if (foggy) clearTimeout(foggy)
+  console.error("\u001b[mIT'S OVER!!")
+  console.error('A WINNAR IS YOU!')
+
+  console.log('ok ' + (i++) + ' A WINNAR IS YOU')
+  ended = true
+  // now go through and verify that everything in there is a dir.
+  var p = path.resolve(__dirname, 'filter-copy')
+  var checker = fstream.Reader({ path: p })
+  checker.checker = true
+  checker.on('child', function (e) {
+    var ok = e.type === 'Directory'
+    console.log((ok ? '' : 'not ') + 'ok ' + (i++) +
+      ' should be a dir: ' +
+      e.path.substr(checker.path.length + 1))
+  })
+})
+
+process.on('exit', function () {
+  console.log((ended ? '' : 'not ') + 'ok ' + (i) + ' ended')
+  console.log('1..' + i)
+})
+
+r.pipe(w)