stdout event ? #5

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1. smolleyes commented on Apr 27, 2016

   

   smolleyes

   on Apr 27, 2016

   Last edited by smolleyes

   Author

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   i tried

   var co = require('co')
   var spawn = require('co-child-process')
   var fs = require('fs')
   
   co(function* () {
     var t = yield unzip()
   })
   
   function * unzip() {
      var stream = fs.createReadStream("/home/sylvain/Documents/imgtmp/photos.zip")
      var out = yield spawn('pv',['-','|','unzip-stream','/tmp']).pump(stream)
   }
   

   where unzip stream is an alias :
   alias unzip-stream="python -c \"import zipfile,sys,StringIO;zipfile.ZipFile(StringIO.StringIO(sys.stdin.read())).extractall(sys.argv[1] if len(sys.argv) == 2 else '.')\""

   running this command from command line works very well :

   pv /home/sylvain/Documents/imgtmp/photos.zip | unzip-stream /tmp/test

   but from the node code i have ...

   /tmp/node_modules/co-child-process/lib/index.js:53
       function onoutdata(chunk) {
                         ^
   
   RangeError: Invalid string length
       at Socket.onoutdata (/tmp/node_modules/co-child-process/lib/index.js:53:23)
       at emitOne (events.js:90:13)
       at Socket.emit (events.js:182:7)
       at readableAddChunk (_stream_readable.js:153:18)
       at Socket.Readable.push (_stream_readable.js:111:10)
       at Pipe.onread (net.js:529:20)
   
   
2. NickHeiner commented on Apr 27, 2016

   

   NickHeiner

   on Apr 27, 2016

   Contributor

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   I'm not sure what the problem is, and I don't have a whole lot of time to investigate. You may be better off just using child_process directly.