Merge commit 'c2b0355b0de23f6ec83b5fa5be038bcce208e26f' as 'waflib'

1 files changed, 64 insertions, 0 deletions

diff --git a/waflib/processor.py b/waflib/processor.py
new file mode 100755
index 00000000..2eecf3bd
--- /dev/null
+++ b/waflib/processor.py
@@ -0,0 +1,64 @@
+#! /usr/bin/env python
+# encoding: utf-8
+# Thomas Nagy, 2016-2018 (ita)
+
+import os, sys, traceback, base64, signal
+try:
+	import cPickle
+except ImportError:
+	import pickle as cPickle
+
+try:
+	import subprocess32 as subprocess
+except ImportError:
+	import subprocess
+
+try:
+	TimeoutExpired = subprocess.TimeoutExpired
+except AttributeError:
+	class TimeoutExpired(Exception):
+		pass
+
+def run():
+	txt = sys.stdin.readline().strip()
+	if not txt:
+		# parent process probably ended
+		sys.exit(1)
+	[cmd, kwargs, cargs] = cPickle.loads(base64.b64decode(txt))
+	cargs = cargs or {}
+
+	ret = 1
+	out, err, ex, trace = (None, None, None, None)
+	try:
+		proc = subprocess.Popen(cmd, **kwargs)
+		try:
+			out, err = proc.communicate(**cargs)
+		except TimeoutExpired:
+			if kwargs.get('start_new_session') and hasattr(os, 'killpg'):
+				os.killpg(proc.pid, signal.SIGKILL)
+			else:
+				proc.kill()
+			out, err = proc.communicate()
+			exc = TimeoutExpired(proc.args, timeout=cargs['timeout'], output=out)
+			exc.stderr = err
+			raise exc
+		ret = proc.returncode
+	except Exception as e:
+		exc_type, exc_value, tb = sys.exc_info()
+		exc_lines = traceback.format_exception(exc_type, exc_value, tb)
+		trace = str(cmd) + '\n' + ''.join(exc_lines)
+		ex = e.__class__.__name__
+
+	# it is just text so maybe we do not need to pickle()
+	tmp = [ret, out, err, ex, trace]
+	obj = base64.b64encode(cPickle.dumps(tmp))
+	sys.stdout.write(obj.decode())
+	sys.stdout.write('\n')
+	sys.stdout.flush()
+
+while 1:
+	try:
+		run()
+	except KeyboardInterrupt:
+		break
+