- 2 new packages (image and repository).
- Split big modules into little one under packages.
- Replace full module import by needed objects
- Avoid wildcard imports
- Fix a lot of pylint error and warnings on modules

Database should not be exposed to external. We should use repository most of
time.

Add image format display
Add new options
Fix bad handling of changelog with version which are not number.

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

This command allow to display/edit the MOTD for a local repository

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

The command 'upgrade_db' create a dummy repository (to the current version) and
add each images/payloads from the repository to upgrade. Symlinks are used to
avoid copy. Old database is still available in repository as db.bak.

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Image version now accept a string of digit separated by dots and extra char as
a qualifier (~ or +).

Example:
1.2.3.4~dev < 1.2.3.4 < 1.2.3.4+dev

Old repositories are still compatible thanks to sqlite type affinity
(https://www.sqlite.org/faq.html#q3

).

We use a package version comparison algorithm for image version comparison
inspired by Debian.

Seblu: Fix typos

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

New pattern is: [repository/][image][:version] (image is now optional).
Allow to select images in repository without globbing: 'is list repository/'
now work as 'is list repository/*'.
Same for version, for example: 'is list :*dev' work as 'is list */*:*dev'.

Seblu: Fix few explicit comparaison

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Thanks to Nicolas for reviewing the manpage

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

if there is more than one image, build display a global build time

c_install function are moved to image

This patch review how scripts are executed and modules loaded.

sys.module is preserved from modification by scripts and avoid conflict with
module loaded by scripts

ISException is an Installsystems exception which can handle an exception and
his information (type, value, traceback).

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

With the permission of Romain Degez, CTO of Smartjog and Sébastien Luttringer.

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

According to PEP263 (http://www.python.org/peps/pep-0263.html

) the source code
encoding, like the magic comment '-*- coding: utf-8 -*-', must be on the two
first lines. If not, default encoding is ascii and SyntaxError will be raised
if there is a non-ASCII character.

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

This allow to build a lot of image in their respective directory

Signed-off-by: Sébastien Luttringer <sebastien.luttringer@smartjog.com>

this produce false result when filtering by search dir in select_image

is -s "local local-testing" list

will list repository nammed testing.

We use current locale to convert argv to unicode and handle it as uncode after.

If we have to format (aka interpolatation) we need to be sure this have to be
done in unicode and not in ascii. This avoid unicode error with ascii string
encoded in utf-8.

Example of failure between a string and an object

b = Exception(u"é")
Exception("error: %s" % b)
 => Exception("error: %s" % str(b)
 => UnicodeEncodeError: 'ascii' codec can't encode character u'\xe9' in position 0: ordinal not in range(128)

Before this, timeout only apply to repository caching.

Now timeout is used by all transfert functions.
A new parameter repo_timeout is available to set a custom timeout on repository

command extract use only one image at a time

min and max is no more handled by select_images