buffer encoding issue

[Joe Andrieu]

With both node v.0.10.13 and v0.12.0 I get the following error when entering anything from the cli:

couchjs/0.3.2 23920: /usr/share/couchdb/server/main.js
Call main
Uncaught error:
TypeError: Unknown encoding: buffer
    at Buffer.toString (buffer.js:274:17)
    at LineStream2._transform (node_modules/couchjs/stream.js:36:21)
    at LineStream2.Transform._read (_stream_transform.js:179:10)
    at LineStream2.Transform._write (_stream_transform.js:167:12)
    at doWrite (_stream_writable.js:301:12)
    at writeOrBuffer (_stream_writable.js:288:5)
    at LineStream2.Writable.write (_stream_writable.js:217:11)
    at ReadStream.ondata (_stream_readable.js:540:20)
    at ReadStream.emit (events.js:107:17)
    at readableAddChunk (_stream_readable.js:163:16)

From what I can tell, although the CLI sets the encoding (on line 70), _stream_writable.js:writeOrBuffer sets the encoding to 'buffer', despite successfully "decoding" the chunk. My current guess is that _stream_writable.js:decodeChunk is /supposed/ to return a string.
...
Later: I actually fixed this particular bug not by changing decodeChunk (that caused other problems), but instead by not overriding the encoding. If it is already set, we don't change it to 'buffer' in writeOrBuffer.

My pull request for node.js with a bug fix is here:
nodejs/node-v0.x-archive#9372

[JKDingwall]

Installing nodejs 0.10.38 on Ubuntu 14.04 with CouchDB 1.6.1 and couchjs installed from git gives a a similar unknown encoding error in the couchjs.log:

Call main
Uncaught error:
TypeError: Unknown encoding: buffer
    at Buffer.toString (buffer.js:434:13)
    at LineStream2._transform (/usr/lib/node_modules/couchjs/stream.js:36:21)
    at LineStream2.Transform._read (_stream_transform.js:179:10)
    at LineStream2.Transform._write (_stream_transform.js:167:12)
    at doWrite (_stream_writable.js:226:10)
    at writeOrBuffer (_stream_writable.js:216:5)
    at LineStream2.Writable.write (_stream_writable.js:183:11)
    at write (_stream_readable.js:602:24)
    at flow (_stream_readable.js:611:7)
    at Socket.pipeOnReadable (_stream_readable.js:643:5)
couchjs/0.3.2 11391: /zcp/couchdb/share/couchdb/server/main.js

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty
# curl -sL https://deb.nodesource.com/setup | sudo bash - # 0.10
# apt-get -y install nodejs
# npm install -g git://github.com/iriscouch/couchjs.git