diff options
Diffstat (limited to 'deps/npm/node_modules/node-gyp/node_modules/fstream/examples/filter-pipe.js')
-rw-r--r-- | deps/npm/node_modules/node-gyp/node_modules/fstream/examples/filter-pipe.js | 134 |
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) |