[OE-core] [PATCH v3 0/2] Make source code browsable locally - devtool srctree

[Tobias Hagelborn]

UPDATE v2:
- Moved default output dir to ${TMPDIR}/srctree
- Retested on Pyro master (core-image-sato/core-image-minimal)

In our organization, there is a demand to be able to download source code for searching.
With the use of sstate-cache this has been challenge. Also, the source is not gathered
but rather spread in a larger directory structure together with build output.
There are probably others that also want to be able to do the same.

This addition does:
* Force download of all source via the srctree_all task
* Symlink the source together in a separate directory structure for easier search without
  the risk of matching with build output.

This is achived with a new class srctree.bbclass that implements the needed tasks and
a devtool command srctree which offers a convenience command to set up source for 
a recipe and it's dependencies.

There is also a way of organising the package source code in your own way.
This is done by implementing a custom dir generation function and assign to SRCTREE_PN_PATH
in a custom class and set SRCTREE_EXTENSION in a configuration file.

Tobias Hagelborn (2):
  srctree.bbclass: Download sourcecode and make it searchable
  devtool: srctree: New command for setting up browsable source-code

 meta/classes/srctree.bbclass   | 90 ++++++++++++++++++++++++++++++++++++++++++
 scripts/lib/devtool/srctree.py | 87 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 177 insertions(+)
 create mode 100644 meta/classes/srctree.bbclass
 create mode 100644 scripts/lib/devtool/srctree.py

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2.1.4