Merge the portage.spawn() implementation with pty logging from trunk:

- Sending output through the pty device makes logging compatible with
  sesandbox and the default selinux security policy (see bug #162404).
- Having a pty device for stdout makes $PAGER behave nicely for things like
  check_license() from eutils.eclass.

svn path=/main/branches/2.1.2/; revision=7395

1 files changed, 9 insertions, 0 deletions

diff --git a/pym/output.py b/pym/output.py
index 6ac6da3fe..08e4d8401 100644
--- a/pym/output.py
+++ b/pym/output.py
@@ -332,6 +332,15 @@ def get_term_size():
 				pass
 	return -1, -1
 
+def set_term_size(lines, columns, fd):
+	"""
+	Set the number of lines and columns for the tty that is connected to fd.
+	For portability, this simply calls `stty rows $lines columns $columns`.
+	"""
+	from portage_exec import spawn
+	cmd = ["stty", "rows", str(lines), "columns", str(columns)]
+	spawn(cmd, env=os.environ, fd_pipes={0:fd})
+
 class EOutput:
 	"""
 	Performs fancy terminal formatting for status and informational messages.