wic: Move find_bitbake_env_line() to oe.misc

Move find_bitbake_env_line() since they're going to need to be
accessible from source plugins.

(From OE-Core rev: d881ec6136255fd0f4a8cf36f9ce148ade02c103)

Signed-off-by: João Henrique Ferreira de Freitas <joaohf@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 16 insertions, 0 deletions

diff --git a/scripts/lib/mic/utils/oe/misc.py b/scripts/lib/mic/utils/oe/misc.py
index 7ad3aa9..5436a0a 100644
--- a/scripts/lib/mic/utils/oe/misc.py
+++ b/scripts/lib/mic/utils/oe/misc.py
@@ -126,6 +126,22 @@ def set_bitbake_env_lines(bitbake_env_lines):
 def get_bitbake_env_lines():
     return __bitbake_env_lines
 
+def find_bitbake_env_lines(image_name):
+    """
+    If image_name is empty, plugins might still be able to use the
+    environment, so set it regardless.
+    """
+    if image_name:
+        bitbake_env_cmd = "bitbake -e %s" % image_name
+    else:
+        bitbake_env_cmd = "bitbake -e"
+    rc, bitbake_env_lines = exec_cmd(bitbake_env_cmd)
+    if rc != 0:
+        print "Couldn't get '%s' output." % bitbake_env_cmd
+        return None
+
+    return bitbake_env_lines
+
 def get_line_val(line, key):
     """
     Extract the value from the VAR="val" string