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[Sandair <1311856@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When running a Sikuli script from the command line, the return value and stderr are useless for any automated system to determine if a problem occurred.
The script itself can easily return any value, and it can output whatever it wants to stderr, but on the Sikuli side there are problems preventing this to be useful:

1. stderr is used to output non-error stuff (Java version etc)
2. stderr is not used to output errors.  E.g.: if there is an syntax error in the script, an "[error] ..." is output to stdout, but not to stderr
3. "[error]..." are reported to stdout for what are not an errors.  E.g. The App.window() reports an error if the window size is 0.  At best it should be a warning/assert but definitely not an error.  In my script, it is perfectly acceptable and should not even warrant a warning.
4. The return is not used to indicate an error:  e.g. in the event of a syntax error, the return value is 0.  In fact, unless the script exits with a special value, the return value is always 0 regardless of errors.


Windows 7
Sikuli 1.0.1
Command line e.g.: runIDE.cmd -r "c:\testscript\Demo" -- "c:\SomeFolder\myApp.exe"

** Affects: sikuli
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1311856

Title:
  Return Value and stderr are useless

Status in Sikuli:
  New

Bug description:
  When running a Sikuli script from the command line, the return value and stderr are useless for any automated system to determine if a problem occurred.
  The script itself can easily return any value, and it can output whatever it wants to stderr, but on the Sikuli side there are problems preventing this to be useful:

  1. stderr is used to output non-error stuff (Java version etc)
  2. stderr is not used to output errors.  E.g.: if there is an syntax error in the script, an "[error] ..." is output to stdout, but not to stderr
  3. "[error]..." are reported to stdout for what are not an errors.  E.g. The App.window() reports an error if the window size is 0.  At best it should be a warning/assert but definitely not an error.  In my script, it is perfectly acceptable and should not even warrant a warning.
  4. The return is not used to indicate an error:  e.g. in the event of a syntax error, the return value is 0.  In fact, unless the script exits with a special value, the return value is always 0 regardless of errors.

  
  Windows 7
  Sikuli 1.0.1
  Command line e.g.: runIDE.cmd -r "c:\testscript\Demo" -- "c:\SomeFolder\myApp.exe"

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