stderr redirection breaks require

[michaelglass]

• Version: 7.5.0
• Platform: Darwin Kernel Version 16.5.0 (mac os sierra)

related workaround: rtfeldman/node-test-runner#106, rtfeldman/node-test-runner@959fda0

We noticed that when redirecting stderr AND receiving input script via pipe, require doesn't work with packages in package.json.

Minimal test case: (given a package.json that includes ajv).

echo "require('ajv')" | node &> js.out || cat js.out

expected output: nothing, it's just a require

actual output:

fs.js:56
    assertEncoding(options.encoding);
    ^

TypeError: assertEncoding is not a function
    at getOptions (fs.js:56:5)
    at Object.realpathSync (fs.js:1468:13)
    at toRealPath (module.js:130:13)
    at tryFile (module.js:126:22)
    at tryPackage (module.js:107:10)
    at Function.Module._findPath (module.js:183:20)
    at Function.Module._resolveFilename (module.js:468:25)
    at Function.Module._load (module.js:418:25)
    at Module.require (module.js:498:17)
    at require (internal/module.js:20:19)

also tested on another Ubuntu 14.04 server. Was not a problem using node 6.9.5

[addaleax]

Thanks for reporting this! Seems like some kind of circular dependency in the core module to me…

[avatar-lavventura]

I have the same error. Running a python code on the background, which makes pipe to node.
nohup python hello.py & . Inside python code I just called a node script. Original code works without nohup.

Something like this:
os.popen( val + "| node & echo $! >" + constants.LOG_PATH + "/my-app.pid").read().

        assertEncoding(options.encoding);
        ^
    
    TypeError: assertEncoding is not a function
        at getOptions (fs.js:58:5)
        at Object.realpathSync (fs.js:1564:13)
        at toRealPath (module.js:130:13)
        at Function.Module._findPath (module.js:178:22)
        at Function.Module._resolveFilename (module.js:468:25)
        at Function.Module._load (module.js:418:25)
        at Module.require (module.js:498:17)
        at require (internal/module.js:20:19)
        at [stdin]:1:13
        at ContextifyScript.Script.runInThisContext (vm.js:23:33)
    fs.js:58

[p3x-robot]

i have this error as well, so it is because of 8.5?