wic refactoring (almost done)

Hi,

This patchset takes care of logging and error handling:
- remove custom msger module in favor of standard python logging
- raise WicError exception instead of calling sys.exit

This is the one of the last changes for this time.

I'm thinking about refactoring wic plugin system, but haven't decided yet if it makes sense to do right now or not. Other than that I'm happy with the state of the wic codebase for now. There are still many things to improve, but it looks and feels much better now.

The following changes since commit 10d1f08f71a623ca6d45cf0ae1afa2e880591a09:

wic: direct: move creation of PartitionedImage to __init__ (2017-02-10 16:44:03 +0200)

are available in the git repository at:

git://git.yoctoproject.org/poky-contrib ed/wic/wip
http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=ed/wic/wip

Ed Bartosh (11):
wic: setup logging in the main wic module
wic: use wic logger in core modules
wic: use wic logger in imager direct plugin
wic: use wic logger in wic source plugins
wic: remove msger module
wic: move errors module
wic: raise WicError in main module
wic: raise WicError in core modules
wic: raise WicError in wic plugins
wic: raise WicError instead of ImageError and CreatorError
wic: move WicError to lib/wic/__init__.py

 scripts/lib/wic/__init__.py                        |  20 ++
 scripts/lib/wic/engine.py                          |  28 ++-
 scripts/lib/wic/help.py                            |   8 +-
 scripts/lib/wic/ksparser.py                        |   7 +-
 scripts/lib/wic/msger.py                           | 209 ---------------------
 scripts/lib/wic/partition.py                       |  68 +++----
 scripts/lib/wic/plugin.py                          |  24 +--
 scripts/lib/wic/pluginbase.py                      |  12 +-
 scripts/lib/wic/plugins/imager/direct.py           |  87 ++++-----
 scripts/lib/wic/plugins/source/bootimg-efi.py      |  52 ++---
 .../lib/wic/plugins/source/bootimg-partition.py    |  25 +--
 scripts/lib/wic/plugins/source/bootimg-pcbios.py   |  41 ++--
 scripts/lib/wic/plugins/source/fsimage.py          |  14 +-
 .../lib/wic/plugins/source/isoimage-isohybrid.py   |  79 ++++----
 scripts/lib/wic/plugins/source/rawcopy.py          |  12 +-
 scripts/lib/wic/plugins/source/rootfs.py           |  21 ++-
 .../lib/wic/plugins/source/rootfs_pcbios_ext.py    |  54 +++---
 scripts/lib/wic/utils/errors.py                    |  29 ---
 scripts/lib/wic/utils/misc.py                      |  34 ++--
 scripts/lib/wic/utils/runner.py                    |  12 +-
 scripts/wic                                        | 104 +++++-----
 21 files changed, 378 insertions(+), 562 deletions(-)
 delete mode 100644 scripts/lib/wic/msger.py
 delete mode 100644 scripts/lib/wic/utils/errors.py

--
Regards,
Ed