Mercurial > hg
view tests/printenv.py @ 31499:31d2ddfd338c
color: sync text attributes and buffered text output on Windows (issue5508)
I originally noticed that log output wasn't being colored after 3a4c0905f357,
but there were other complications too. With a bunch of untracked files, only
the first 1K of characters were colored pink, and the rest were normal white. A
single modified file at the top would also be colored pink.
Line buffering and full buffering are treated as the same thing in Windows [1],
meaning the stream is either buffered or not. I can't find any explicit
documentation to say stdout is unbuffered by default when attached to a console
(but some internet postings indicated that is the case[2]). Therefore, it seems
that explicit flushes are better than just not reopening stdout.
NB: pager is now on by default, and needs to be disabled to see any color on
Windows.
[1] https://msdn.microsoft.com/en-us/library/86cebhfs(v=vs.140).aspx
[2] https://sourceforge.net/p/mingw/mailman/message/27121137/
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Sun, 19 Mar 2017 12:44:45 -0400 |
parents | 036787c10b16 |
children | 84a6e39bc723 |
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#!/usr/bin/env python # # simple script to be used in hooks # # put something like this in the repo .hg/hgrc: # # [hooks] # changegroup = python "$TESTDIR/printenv.py" <hookname> [exit] [output] # # - <hookname> is a mandatory argument (e.g. "changegroup") # - [exit] is the exit code of the hook (default: 0) # - [output] is the name of the output file (default: use sys.stdout) # the file will be opened in append mode. # from __future__ import absolute_import import os import sys try: import msvcrt msvcrt.setmode(sys.stdin.fileno(), os.O_BINARY) msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) except ImportError: pass exitcode = 0 out = sys.stdout name = sys.argv[1] if len(sys.argv) > 2: exitcode = int(sys.argv[2]) if len(sys.argv) > 3: out = open(sys.argv[3], "ab") # variables with empty values may not exist on all platforms, filter # them now for portability sake. env = [(k, v) for k, v in os.environ.iteritems() if k.startswith("HG_") and v] env.sort() out.write("%s hook: " % name) if os.name == 'nt': filter = lambda x: x.replace('\\', '/') else: filter = lambda x: x vars = ["%s=%s" % (k, filter(v)) for k, v in env] out.write(" ".join(vars)) out.write("\n") out.close() sys.exit(exitcode)