Automatic color detection issue on Windows with GIT Bash

[Neonit]

Five minutes ago I didn't even know gulp had color support. I found this by running gulp manually:
node node_modules/gulp/bin/gulp.js
This gave me a colored output on my GIT Bash on Windows 7 x64.

The bash itself reports the following version:

GNU bash, version 4.3.42(5)-release (x86_64-pc-msys)
Copyright (C) 2013 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>

Just running gulp (using the globally installed gulp-cli 2.0.1) does not give me a colored output. It works when I add --color manually. I have not installed gulp globally. My local gulp version is 4.0.0.

Further I'm using Node 10.0.0 and npm 5.6.0.

I would have tried to workaround this by adding the color flag to the global gulp-cli configuration, but the documentation states there is no color flag for the configuration file.

[sttk]

Thank you for the report.

I reproduced it but I don't find the cause yet, but I think it is not a gulp issue.
I'll look into it more.

$ npm i gulp-cli gulp@4
$ node -v
$ node_modules/.bin/gulp -v   // output with no color.
[05:21:19] CLI version 2.0.1
[05:21:19] Local version 4.0.0

$ node node_modules/gulp/bin/gulp.js -v // output with color.
[05:21:27] CLI version 2.0.1
[05:21:27] Local version 4.0.0

$ node_modules/gulp/bin/gulp.js -v // output with color.
[05:21:36] CLI version 2.0.1
[05:21:36] Local version 4.0.0

[sttk]

I found the cause of this issue.

gulp-cli uses color-support to detect whether a terminal supports color output, and it checks whether stdout is a TTY by process.stdout.isTTY.

However, this isTTY flag on MinGW is false, maybe because MinTTY does not play well with Windows console applications which need interactive mode.

We will not solve this issue in gulp-cli.

In additon, color flag in configuration file is not supported now.

Please work around this issue by using alias command, etc.

[Neonit]

I cannot reproduce your findings.

Using the same GIT Bash I encountered the issue with in the directory I cloned gulp-cli to (so I assume it's using the same version of color-support):

Me@Neonit MINGW64 /z/repositories/gulp-cli (master)
$ node -p -e "Boolean(process.stdout.isTTY)"
true

Me@Neonit MINGW64 /z/repositories/gulp-cli (master)
$ node -p -e "require('color-support')()"
{ level: 1, hasBasic: true, has256: false, has16m: false }

Ironically, the output was colored.

I had a look at your code in lib/shared/ansi.js and considering the above output I cannot understand how it doesn't want to give me colors by default.

[sttk]

@Neonit Use not node but node.exe.
I don't know mechanism inside of Git Bash Terminal, but these two commands behave differently, and gulp (and other applications?) runs with node.exe.