bitbake: layerindexlib: Initial layer index processing module implementation

The layer index module is expected to be used by various parts of the system
in order to access a layerindex-web (such as layers.openembedded.org) and
perform basic processing on the information, such as dependency scanning.

Along with the layerindex implementation are associated tests.  The tests
properly honor BB_SKIP_NETTESTS='yes' to prevent test failures.

Tests Implemented:
   - Branch, LayerItem, LayerBranch, LayerDependency, Recipe, Machine and
      Distro objects
   - LayerIndex setup using the layers.openembedded.org restapi
   - LayerIndex storing and retrieving from a file
   - LayerIndex verify dependency resolution ordering
   - LayerIndex setup using simulated cooker data

(Bitbake rev: fd0ee6c10dbb5592731e56f4c592fe687682a3e6)

Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/bitbake/lib/layerindexlib/README b/bitbake/lib/layerindexlib/README
new file mode 100644
index 0000000000..5d927afdf7
--- /dev/null
+++ b/bitbake/lib/layerindexlib/README
@@ -0,0 +1,28 @@
+The layerindexlib module is designed to permit programs to work directly
+with layer index information.  (See layers.openembedded.org...)
+
+The layerindexlib module includes a plugin interface that is used to extend
+the basic functionality.  There are two primary plugins available: restapi
+and cooker.
+
+The restapi plugin works with a web based REST Api compatible with the
+layerindex-web project, as well as the ability to store and retried a
+the information for one or more files on the disk.
+
+The cooker plugin works by reading the information from the current build
+project and processing it as if it were a layer index.
+
+
+TODO:
+
+__init__.py:
+Implement local on-disk caching (using the rest api store/load)
+Implement layer index style query operations on a combined index
+
+common.py:
+Stop network access if BB_NO_NETWORK or allowed hosts is restricted
+
+cooker.py:
+Cooker - Implement recipe parsing
+
+