61 lines
1.2 KiB
JavaScript
61 lines
1.2 KiB
JavaScript
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var Promise = require('any-promise')
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module.exports = function (stream, done) {
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if (!stream) {
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// no arguments, meaning stream = this
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stream = this
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} else if (typeof stream === 'function') {
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// stream = this, callback passed
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done = stream
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stream = this
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}
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var deferred
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if (!stream.readable) deferred = Promise.resolve([])
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else deferred = new Promise(function (resolve, reject) {
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// stream is already ended
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if (!stream.readable) return resolve([])
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var arr = []
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stream.on('data', onData)
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stream.on('end', onEnd)
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stream.on('error', onEnd)
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stream.on('close', onClose)
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function onData(doc) {
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arr.push(doc)
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}
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function onEnd(err) {
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if (err) reject(err)
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else resolve(arr)
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cleanup()
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}
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function onClose() {
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resolve(arr)
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cleanup()
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}
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function cleanup() {
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arr = null
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stream.removeListener('data', onData)
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stream.removeListener('end', onEnd)
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stream.removeListener('error', onEnd)
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stream.removeListener('close', onClose)
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}
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})
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if (typeof done === 'function') {
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deferred.then(function (arr) {
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process.nextTick(function() {
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done(null, arr)
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})
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}, done)
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}
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return deferred
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}
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