toaster: Don't def a function for each call to build_artifact()

Cache the mimetype object and only define the function for
getting a mimetype once.

Also ensure that filemagic is listed as a requirement of
toaster. Doing this also means we can remove the code
which tries multiple different "magic" libraries, as we know
we have the right version available.

Signed-off-by: Elliot Smith <elliot.smith@intel.com>
Signed-off-by: brian avery <avery.brian@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

0 files changed, 0 insertions, 0 deletions