capture command line output

[gswifort]

Can I capture command line logs? For example, the AUDIT command prints errors on the command line.

[CEXT-Dan]

AutoCAD only:

#400 lines is the default
Ed.Core.getLastCommandLines(400,True)

There’s also LOGFILEON and LOGFILEOFF
Writes the contents of the command history to a file, I’ve never used it though

[gswifort]

AutoCAD only:

I need a solution for zwcad

There’s also LOGFILEON and LOGFILEOFF

I think I tried that once and it didn't work (zwcad)

Is there no way to redirect the output?

[CEXT-Dan]

The only other way is to subclass AcDbHostApplicationServices as shown here
https://adndevblog.typepad.com/autocad/2012/09/trapping-the-output-from-the-autocad-text-screen-command-prompt.html

However, this is something that needs to have a very short lifespan and cannot live past a function context, or at least highly controlled.
I would only override displayChar and displayString, so its possible that the system could become unstable

Pseudo code

import traceback
from pyrx import Rx, Ge, Gi, Db, Ap, Ed, Ax

def do_capture_audit()-> str:
    capture = Db.HostApplicationServices.createOutputCapture()
    cmdData = [
        (Rx.LispType.kText, "AUDIT"),
        (Rx.LispType.kText, "N"),
        (Rx.LispType.kNone, 0),
    ]
    Ed.Core.cmdS(cmdData)
    return capture.output()

@Ap.Command("doit")
def doit():
    try:
       do_capture_audit()
    except Exception as err:
        traceback.print_exception(err)

[CEXT-Dan]

I added it in [#190]

setMuteCmdLine(True) does not work 100% in ZwCAD, it still shows the Y/N prompt

I swap in a new HostApplicationServices class for the capture.
using other Db.HostApplicationServices methods while its swapped is probably not a good idea.

import traceback
from pyrx import Rx, Ge, Gi, Db, Ap, Ed, Ax

def do_capture_audit()-> str:
    capture = Db.HostApplicationServices.createOutputCapture()
    capture.setMuteCmdLine(True)
    cmdData = [
        (Rx.LispType.kText, "AUDIT"),
        (Rx.LispType.kText, "N"),
        (Rx.LispType.kNone, 0),
    ]
    Ed.Core.cmdS(cmdData)
    return capture.output()

@Ap.Command("doit")
def doit():
    try:
       result = do_capture_audit()
       print("BEGIN-\n" +result + "\n-END")
    except Exception as err:
        traceback.print_exception(err)