ui/crumbs/utils.py: new file for choosing terminals

Adding this simple version of a terminal selector for use
hob since it's needed. Moving forward in the 1.3 release
the existing code in meta/lib/oe/termnial.py will be migrated
to core bitbake code and this will use that code.

(Bitbake rev: 359a9ea4c8d61247064db3eaefb816ef116d332a)

Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/ui/crumbs/utils.py

@@ -0,0 +1,33 @@
+#
+# BitBake UI Utils 
+#
+# Copyright (C) 2012 Intel Corporation
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+# This utility method looks for xterm or vte and return the 
+# frist to exist, currently we are keeping this simple, but 
+# we will likely move the oe.terminal implementation into 
+# bitbake which will allow more flexibility.
+
+import os
+
+def which_terminal():
+    term = bb.utils.which(os.environ["PATH"], "xterm")
+    if term:
+        return term + " -e "
+    term = bb.utils.which(os.environ["PATH"], "vte")
+    if term:
+        return term + " -c "
+    return None