Hi, I have a applypatch-msg hook that implements some policy for acceptable commit messages and reject non-conformant patches. It also is able to prompt me to override it's rejection. The prompting only happens when stdin is a tty (as determined by pythons sys.stdin.isatty()) For example this would reject the patch and cause am stop $ cat bad.patch | git am And this would prompt me to allow the patch and am would proceed if I answer Y $ git am bad.patch Patch message invalid apply (Y/N)? As of git 2.6 this has stopped working and stdin always fails the tty check. Here's a minimal reproduction $ cat >.git/hooks/applypatch-msg <<EOF #!/usr/bin/env python import sys if sys.stdin.isatty(): print("TTY") else: print("NOT") EOF $ chmod +x .git/hooks/applypatch-msg $ git checkout -b temp origin/master^ $ git format-patch master -1 # With git 2.6 $ git am 0001-Git-2.6.patch NOT Applying: Git 2.6 # With git 2.5.3 TTY Applying: Git 2.6 Thanks, Chris -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html