Mercurial > hg
view tests/filtertraceback.py @ 45825:8f07f5a9c3de
worker: raise exception instead of calling sys.exit() with child's code
When a worker process returns an error code, we would call
`sys.exit()` with that exit code on the main process. The `SystemExit`
exception would then get caught in `scmutil.callcatch()`, which would
return that error code. The comment there says "Commands shouldn't
sys.exit directly", which I agree with. This patch changes it so we
raise a specific exception when a worker fails so we can catch
instead. I think that means that `SystemExit` is now always an
internal error.
(I had earlier thought that this call to `sys.exit()` was from within
the child process until Matt Harbison made me look again, so thanks
for that!)
Differential Revision: https://phab.mercurial-scm.org/D9287
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Sat, 07 Nov 2020 21:50:28 -0800 |
parents | d359f0d1a3d3 |
children | c102b704edb5 |
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#!/usr/bin/env python # Filters traceback lines from stdin. from __future__ import absolute_import, print_function import io import sys if sys.version_info[0] >= 3: # Prevent \r from being inserted on Windows. sys.stdout = io.TextIOWrapper( sys.stdout.buffer, sys.stdout.encoding, sys.stdout.errors, newline="\n", line_buffering=sys.stdout.line_buffering, ) state = 'none' for line in sys.stdin: if state == 'none': if line.startswith('Traceback '): state = 'tb' elif state == 'tb': if line.startswith(' File '): state = 'file' continue elif not line.startswith(' '): state = 'none' elif state == 'file': # Ignore lines after " File " state = 'tb' continue print(line, end='')