Mercurial > hg
changeset 38454:d24ad71ff869
procutil: use unbuffered stdout on Windows
Windows doesn't support line buffering, treating it as fully buffered. This
causes output of slow commands to stutter. We use unbuffered instead.
| author | Sune Foldager <cryo@cyanite.org> |
|---|---|
| date | Mon, 25 Jun 2018 16:36:14 +0200 |
| parents | 5cdfc20bfd5f |
| children | 1cac2e8c7624 |
| files | mercurial/utils/procutil.py |
| diffstat | 1 files changed, 6 insertions(+), 2 deletions(-) [+] |
line wrap: on
line diff
--- a/mercurial/utils/procutil.py Fri May 25 18:16:38 2018 +0530 +++ b/mercurial/utils/procutil.py Mon Jun 25 16:36:14 2018 +0200 @@ -41,9 +41,13 @@ # glibc determines buffering on first write to stdout - if we replace a TTY # destined stdout with a pipe destined stdout (e.g. pager), we want line -# buffering +# buffering (or unbuffered, on Windows) if isatty(stdout): - stdout = os.fdopen(stdout.fileno(), r'wb', 1) + if pycompat.iswindows: + # Windows doesn't support line buffering + stdout = os.fdopen(stdout.fileno(), r'wb', 0) + else: + stdout = os.fdopen(stdout.fileno(), r'wb', 1) if pycompat.iswindows: from .. import windows as platform