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					28 lines
				
				814 B
			
		
		
			
		
	
	
					28 lines
				
				814 B
			| 
											3 years ago
										 | var fs   = require('fs') | ||
|  | var zlib = require('zlib') | ||
|  | var strs = require('stringstream') | ||
|  | 
 | ||
|  | var utf8Stream = fs.createReadStream('massiveLogFile.gz') | ||
|  |   .pipe(zlib.createGunzip()) | ||
|  |   .pipe(strs('utf8')) | ||
|  | 
 | ||
|  | utf8Stream.pipe(process.stdout) | ||
|  | 
 | ||
|  | // Stream from utf8 to hex to base64... Why not, ay.
 | ||
|  | var hex64Stream = fs.createReadStream('myFile') | ||
|  |   .pipe(strs('utf8', 'hex')) | ||
|  |   .pipe(strs('hex', 'base64')) | ||
|  | 
 | ||
|  | hex64Stream.pipe(process.stdout) | ||
|  | 
 | ||
|  | // Deals with base64 correctly by aligning chunks
 | ||
|  | var stream = fs.createReadStream('myFile').pipe(strs('base64')) | ||
|  | 
 | ||
|  | var base64Str = '' | ||
|  | 
 | ||
|  | stream.on('data', function(data) { base64Str += data }) | ||
|  | stream.on('end', function() { | ||
|  |   console.log('My base64 encoded file is: ' + base64Str) // Wouldn't work with setEncoding()
 | ||
|  |   console.log('Original file is: ' + new Buffer(base64Str, 'base64')) | ||
|  | }) |