# git for windows: isatty of stdin / stdout inconsistent

1 messages from 2020-06-12 to 2020-06-12. Participants: Anthony Sottile.
Thread: https://gitlist.dev/t/53667

## Anthony Sottile, 2020-06-12 17:06

Subject: git for windows: isatty of stdin / stdout inconsistent
Message-ID: <CA+dzEB=OiqaEW0CEQoChStZYcho68J9ysH_XYp0Qupbrgg1Jxg@mail.gmail.com>
URL: https://gitlist.dev/e/CA%2BdzEB%3DOiqaEW0CEQoChStZYcho68J9ysH_XYp0Qupbrgg1Jxg%40mail.gmail.com

```
this seems inconsistent with posix platforms

(using cmd.exe, git 2.19.1.windows.1 though I've validated this with
other versions as well)

>cat .git\hooks\pre-commit
#!/usr/bin/env python
# note: use python3 on linux platforms for shebang
import sys
print(f'stdin: {sys.stdin.isatty()}')
print(f'stdout: {sys.stdout.isatty()}')
print(f'stderr: {sys.stderr.isatty()}')

>git commit -m foo --allow-empty
stdin: True
stdout: False
stderr: True
[master (root-commit) 9c7716f] foo

but on linux:

$ git --version
git version 2.25.1
$ git commit -m foo --allow-empty
stdin: False
stdout: True
stderr: True
[master (root-commit) eb8435a] foo

it's also weird to me that `stdin` seems flipped between the two as well

actual issue: this is breaking coloring detection in https://pre-commit.com

Anthony

```