Use os.Getwd instead of os.Getenv("PWD").

[oda]

$PWD is only available for UNIX like OS, and os.Getwd returns $PWD as far as
$PWD and "." are the same directory. This makes it possible to call git ghost
from other programs such as gitpython.

[dtaniwaki]

Thank you for the pull request! I think your suggestion makes sense.

Would you also update the help message?

git-ghost/cmd/root.go

Line 98 in 08a28c1

RootCmd.PersistentFlags().StringVar(&globalOpts.srcDir, "src-dir", "", "source directory which you create ghost from (default to PWD env)")

Maybe, something like (default to the current directory).

[oda]

I addressed your comments. Thanks.

[dtaniwaki]

LGTM, thank you!