support ANSI escapes under MSWin

mmgen/color.py

@@ -52,6 +52,13 @@ for _c in _colors:
 
 def nocolor(s): return s
 
+def set_vt100():
+	'hack to put term into VT100 mode under MSWin'
+	from .globalvars import g
+	if g.platform == 'win':
+		from subprocess import run
+		run([],shell=True)
+
 def get_terminfo_colors(term=None):
 	from subprocess import run,PIPE
 	cmd = ['infocmp','-0']
@@ -91,15 +98,4 @@ def init_color(num_colors='auto'):
 	for c in _colors:
 		globals()['_clr_'+c] = globals()[pfx+c]
 
-def start_mscolor():
-	import sys
-	from .globalvars import g
-	try:
-		import colorama
-		colorama.init(strip=True,convert=True)
-	except:
-		from .util import msg
-		msg('Import of colorama module failed')
-	else:
-		g.stdout = sys.stdout
-		g.stderr = sys.stderr
+	set_vt100()

mmgen/opts.py

@@ -310,9 +310,7 @@ def init(opts_data=None,add_opts=None,init_opts=None,opt_filter=None,parse_only=
 	g.color is finalized, so initialize color
 	"""
 	if g.color: # MMGEN_DISABLE_COLOR sets this to False
-		from .color import start_mscolor,init_color
-		if g.platform == 'win':
-			start_mscolor()
+		from .color import init_color
 		init_color(num_colors=('auto',256)[bool(g.force_256_color)])
 
 	"""

test/colortest.py

@@ -11,20 +11,16 @@ import include.tests_header
 from include.common import *
 from mmgen.color import *
 from mmgen.color import _colors
-init_color()
 
 def test_color():
-	try:
-		import colorama
-		start_mscolor()
-	except:
-		pass
 
+	init_color()
 	gmsg("Parsed terminfo 'colors' values:")
 
 	for t,c in (('rxvt',8),('xterm',8),('rxvt-unicode',88),('screen-256color',256),('xterm-256color',256)):
 		ret = get_terminfo_colors(t)
 		if ret == None:
+			set_vt100()
 			ymsg('Warning: unable to get info for terminal {!r}'.format(t))
 			continue
 		msg('{}: {}'.format(t,ret))
@@ -32,7 +28,7 @@ def test_color():
 
 	ret = get_terminfo_colors()
 	msg('This terminal ({}): {}'.format(os.getenv('TERM'),ret))
-
+	set_vt100()
 	gmsg("Terminal display:")
 
 	for desc,n in (('auto','auto'),('8-color',8),('256-color',256)):

test/test.py

@@ -704,7 +704,7 @@ class TestSuiteRunner(object):
 				self.ts.test_name,
 				cmd_disp))
 
-		os.environ['MMGEN_FORCE_COLOR'] = ('1' if self.ts.color and g.platform == 'linux' else '')
+		os.environ['MMGEN_FORCE_COLOR'] = '1' if self.ts.color else ''
 
 		from test.include.pexpect import MMGenPexpect
 		return MMGenPexpect(args,no_output=no_output)