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Is there a way to make msbuild write error output to stderr?


Is there a way to make msbuild write error output to stderr?

By : kadow thai
Date : December 05 2020, 12:24 PM
should help you out Take a look at the MSBUILD.EXE command line arguments page. Specifically the consoleloggerparameters switch.
You can use /clp:ErrorsOnly to display only errors in the console output.
code :


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Write STDOUT & STDERR to a logfile, also write STDERR to screen

Write STDOUT & STDERR to a logfile, also write STDERR to screen


By : user2003846
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further I would like to run several commands, and capture all output to a logfile. I also want to print any errors to the screen (or optionally mail the output to someone).
code :
(./doit >> log) 2>&1 | tee -a log
Can you make a python subprocess output stdout and stderr as usual, but also capture the output as a string?

Can you make a python subprocess output stdout and stderr as usual, but also capture the output as a string?


By : Mushegh Grigoryan
Date : March 29 2020, 07:55 AM
may help you . , This example seems to work for me:
code :
# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4

import subprocess
import sys
import select

p = subprocess.Popen(["find", "/proc"],
    stdout=subprocess.PIPE, stderr=subprocess.PIPE)

stdout = []
stderr = []

while True:
    reads = [p.stdout.fileno(), p.stderr.fileno()]
    ret = select.select(reads, [], [])

    for fd in ret[0]:
        if fd == p.stdout.fileno():
            read = p.stdout.readline()
            sys.stdout.write('stdout: ' + read)
            stdout.append(read)
        if fd == p.stderr.fileno():
            read = p.stderr.readline()
            sys.stderr.write('stderr: ' + read)
            stderr.append(read)

    if p.poll() != None:
        break

print 'program ended'

print 'stdout:', "".join(stdout)
print 'stderr:', "".join(stderr)
What is the best to detect stderr output and stop make

What is the best to detect stderr output and stop make


By : Maik Lehradt
Date : March 29 2020, 07:55 AM
hop of those help? You can tell make to not print the command it runs by prepending the recipe line with the @ character:
code :
target:
        prog1 -i input1 input2 -o out.txt  2>&1  1>/dev/null | tee err_log
        @if [ -s err_log ]; then false ; fi
        prog2
        @[ ! -s err_log ]
Why when I write to stderr I see STDERR output on the stdout?

Why when I write to stderr I see STDERR output on the stdout?


By : Prasanna Venkatesh
Date : March 29 2020, 07:55 AM
Hope that helps ,
I supposed only STDOUT should be visible in the terminal.
How to output the process.stderr.write to winston

How to output the process.stderr.write to winston


By : Angelo Teste
Date : March 29 2020, 07:55 AM
it should still fix some issue Using winston loggers to write contents into the files but that works only when customlogger.error is used. If the node is outputting some reference error like below
code :
`
function formatArgs(args){
    return [util.format.apply(util.format, Array.prototype.slice.call(args))];
}
console.info = function(){
    customlogger.info.apply(customlogger, formatArgs(arguments));
};
console.warn = function(){
    customlogger.warn.apply(customlogger, formatArgs(arguments));
};`
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