pipes

Signed-off-by: Kenneth Reitz <me@kennethreitz.org>

click_tools/pipes.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+
+import sys
+import os
+
+
+def piped_in():
+    """Returns piped input via stdin, else None."""
+    with sys.stdin as stdin:
+        # TTY is only way to detect if stdin contains data
+        if not stdin.isatty():
+            return stdin.read()
+        else:
+            return None
+
+
+def is_interactive():
+    """Returns if the current session is interactive or not."""
+    return bool(os.isatty(sys.stdout.fileno()))