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  1. Core Server
  2. SERVER-14072

Shell should load .js files before --eval

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Minor - P4
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: Backlog
    • Component/s: Shell
    • Labels:
      None

      Description

      Currently the shell processes --eval prior to any .js files on the command line. Is there any particular reason this order is used? I find it confusing and backwards to what I expect, probably because I think of --eval as a non-interactive replacement for the interactive REPL (unless --shell is used), and when .js files are specified without --eval they are loaded prior to presenting the prompt.

      My use case is a library of code contained in a .js file which defines some functions that I can then call from --eval. The code isn't general enough that I want to have it always loaded in my ~/.mongorc.js file. I can work around it by using load() from inside --eval, but that's ugly.

      $ cat foo.js
      print("foo");
      foo = function () { print("bar"); }
      $ mongo foo.js --eval 'foo(); print("baz")'
      MongoDB shell version: 2.4.9
      connecting to: test
      Wed May 28 12:16:43.912 ReferenceError: foo is not defined
      $ mongo --eval 'load("foo.js"); foo(); print("baz")'
      MongoDB shell version: 2.4.9
      connecting to: test
      foo
      bar
      baz
      $ 
      

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                • Created:
                  Updated: