1239089 - If I immediately quit from "./mach show-log", it spams a ton of "IOError: broken pipe" output

Status: NEW

(Firefox Build System :: Mach Core, enhancement)

Description

[Daniel Holbert [:dholbert]]

Attachment: sample last_log.json which can be used to reproduce bug

STR:
 1. Clobber & rebuild (so that you've got a large last_log.json file).
  ...OR, easier: just replace your $OBJ/.mozbuild/last_log.json with my own attached log.

 2. Run ./mach show-log.
   --> For me, this presents last_log.json in a pager program ('less', I think)

 3. Within a second or two, press "q" to quit.

ACTUAL RESULTS:
Your terminal fills with pages and pages of the following repeated error output for ~5 seconds:
{
IOError: [Errno 32] Broken pipe
Logged from file , line 0
Traceback (most recent call last):
  File "/usr/lib/python2.7/logging/__init__.py", line 883, in emit
    self.flush()
  File "/usr/lib/python2.7/logging/__init__.py", line 843, in flush
    self.stream.flush()
IOError: [Errno 32] Broken pipe
Logged from file , line 0
Traceback (most recent call last):
  File "/usr/lib/python2.7/logging/__init__.py", line 883, in emit
    self.flush()
  File "/usr/lib/python2.7/logging/__init__.py", line 843, in flush
    self.stream.flush()
IOError: [Errno 32] Broken pipe
Logged from file , line 0
}

EXPECTED RESULTS: No such spam.

Comment 1

[Daniel Holbert [:dholbert]]

Attachment: screencast of bug