Styjun

I added a custom logger to the waf build command as seen below. The output of this wscript is shown below.

But I want to have the normal waf logger to print on the terminal, and the normal + custom logger output to be written to the log file. Is this possible? The problem is, that the normal output is most times sufficient, and the added verbosity by the custom logger slows down the build quite a lot.

#!/usr/bin/env python
# -*- encoding: utf-8 -*-

top = '.'
out = 'build'

VERSION = '0.0.0'
APPNAME = 'app'

from waflib import Configure, Logs
import logging

Configure.autoconfig = True

def options(opt):
 opt.load('compiler_c')

def configure(conf):
 conf.load('compiler_c')
 conf.path.make_node('main.c').write(
 '#include <stdio.h>nnint main(int argc, char* argv[]) n return 0;nn')

def build(bld):
 import sys
 import os
 log_file = os.path.join(out, 'build.log')
 bld.logger = Logs.make_logger(log_file, out)
 hdlr = logging.StreamHandler(sys.stdout)
 formatter = logging.Formatter('%(message)s')
 hdlr.setFormatter(formatter)
 bld.logger.addHandler(hdlr)
 bld.program(target='app', source='main.c')

The produced output is like this:

$ python waf
Configuring the project
Setting top to : /cygdrive/d/log
Setting out to : /cygdrive/d/log/build
Checking for 'gcc' (C compiler) : /usr/bin/gcc
Waf: Entering directory `/cygdrive/d/log/build'
[1/2] Compiling main.c

['/usr/bin/gcc', '../main.c', '-c', '-o/cygdrive/d/log/build/main.c.1.o']
[2/2] Linking build/app.exe

['/usr/bin/gcc', '-Wl,--enable-auto-import', 'main.c.1.o', '-o/cygdrive/d/log/build/app.exe', '-Wl,-Bstatic', '-Wl,-Bdynamic']
Waf: Leaving directory `/cygdrive/d/log/build'
'build' finished successfully (0.473s)

What I need is a terminal output like this:

[1/2] Compiling main.c
[2/2] Linking build/app.exe

and a log file output like this:

[1/2] Compiling [32mmain.c[0m

['/usr/bin/gcc', '../main.c', '-c', '-o/cygdrive/d/log/build/main.c.1.o']
[2/2] Linking [33mbuild/app.exe[0m

['/usr/bin/gcc', '-Wl,--enable-auto-import', 'main.c.1.o', '-o/cygdrive/d/log/build/app.exe', '-Wl,-Bstatic', '-Wl,-Bdynamic']

Bonus: How can the non printable characters be removed only in the log file output?