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authorDavid Robillard <d@drobilla.net>2018-09-11 20:54:08 +0200
committerDavid Robillard <d@drobilla.net>2018-09-11 20:54:08 +0200
commitb6e9de2de9725e2f5a3170b8171ad1a1e95e8339 (patch)
treeaa8d80d8ca0d943e729e9f239229c741c5228924 /processor.py
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Squashed 'waflib/' content from commit 391d285
git-subtree-dir: waflib git-subtree-split: 391d2853c6c97efc90e466f187675e8155c866d6
Diffstat (limited to 'processor.py')
-rwxr-xr-xprocessor.py64
1 files changed, 64 insertions, 0 deletions
diff --git a/processor.py b/processor.py
new file mode 100755
index 0000000..2eecf3b
--- /dev/null
+++ b/processor.py
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+#! /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
+