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stdout buffer flushes in realtime; closes #49 #50

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merged 1 commit into from
Sep 26, 2016
Merged

stdout buffer flushes in realtime; closes #49 #50

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14 changes: 13 additions & 1 deletion bin/brew-file
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Original file line number Diff line number Diff line change
Expand Up @@ -143,6 +143,18 @@ class BrewHelper:
def __init__(self, opt):
self.opt = opt

@staticmethod
def readstdout(proc):
while True:
line = proc.stdout.readline()
code = proc.poll()
if line == '':
if code is not None:
break
else:
continue
yield line

def proc(self, cmd, print_cmd=True, print_out=True,
exit_on_error=True, separete_err_msg=False, verbose_level=1):
""" Get process output."""
Expand All @@ -158,7 +170,7 @@ class BrewHelper:
try:
stderr = None if separete_err_msg else subprocess.STDOUT
p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=stderr)
for line in p.stdout:
for line in self.readstdout(p):
l = my_decode(line).rstrip()
lines.append(l)
if print_out:
Expand Down