devtool: fix running from a different directory

Fixes the following error when running devtool from a directory other
than the build directory (or the SDK base path when using within the
extensible SDK):

  The BBPATH variable is not set and bitbake did not find a
  conf/bblayers.conf file in the expected location.
  Maybe you accidentally invoked bitbake from the wrong directory?

(From OE-Core rev: 1687ec04bfee327fe24fdfecb67db689835769f2)

Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/scripts/devtool b/scripts/devtool
index b9d3bb9e85..87df951dc1 100755
--- a/scripts/devtool
+++ b/scripts/devtool
@@ -221,6 +221,9 @@ def main():
     if not config.read():
         return -1
 
+    # We need to be in this directory or we won't be able to initialise tinfoil
+    os.chdir(basepath)
+
     bitbake_subdir = config.get('General', 'bitbake_subdir', '')
     if bitbake_subdir:
         # Normally set for use within the SDK