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| author | Priyansh <[email protected]> | 2020-12-22 17:49:59 +0530 |
|---|---|---|
| committer | Priyansh <[email protected]> | 2020-12-22 17:49:59 +0530 |
| commit | e93da8b04da86773247aadb1cbb1912e4f4526b2 (patch) | |
| tree | eb4ef3203a92ed3dbd2252ddb1ea23bd2d670c98 /node_modules/get-stream/index.js | |
| parent | a5743c293dcb435e4b159a4df791f8955a4110ec (diff) | |
| download | styx-e93da8b04da86773247aadb1cbb1912e4f4526b2.tar.xz styx-e93da8b04da86773247aadb1cbb1912e4f4526b2.zip | |
Rewriting Project
Diffstat (limited to 'node_modules/get-stream/index.js')
| -rw-r--r-- | node_modules/get-stream/index.js | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/node_modules/get-stream/index.js b/node_modules/get-stream/index.js new file mode 100644 index 0000000..7e5584a --- /dev/null +++ b/node_modules/get-stream/index.js @@ -0,0 +1,50 @@ +'use strict'; +const pump = require('pump'); +const bufferStream = require('./buffer-stream'); + +class MaxBufferError extends Error { + constructor() { + super('maxBuffer exceeded'); + this.name = 'MaxBufferError'; + } +} + +function getStream(inputStream, options) { + if (!inputStream) { + return Promise.reject(new Error('Expected a stream')); + } + + options = Object.assign({maxBuffer: Infinity}, options); + + const {maxBuffer} = options; + + let stream; + return new Promise((resolve, reject) => { + const rejectPromise = error => { + if (error) { // A null check + error.bufferedData = stream.getBufferedValue(); + } + reject(error); + }; + + stream = pump(inputStream, bufferStream(options), error => { + if (error) { + rejectPromise(error); + return; + } + + resolve(); + }); + + stream.on('data', () => { + if (stream.getBufferedLength() > maxBuffer) { + rejectPromise(new MaxBufferError()); + } + }); + }).then(() => stream.getBufferedValue()); +} + +module.exports = getStream; +module.exports.buffer = (stream, options) => getStream(stream, Object.assign({}, options, {encoding: 'buffer'})); +module.exports.array = (stream, options) => getStream(stream, Object.assign({}, options, {array: true})); +module.exports.MaxBufferError = MaxBufferError; |
