[PATCH] deb to snap building script: various improvements

[Paolo Pisati]

This series of patches apply to our 'deb to snap' packaging scripts located
here:

git://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux-snap/+git/xenial

Every patch applies to a different branch in that tree (see the subject), and
specifically they go to:

"deb to snap build script: Enforce kernel version, and several
other changes"			-> master branch
"UBUNTU-Ubuntu-4.4.0.87.93"	-> pc branch
"UBUNTU: Ubuntu-4.4.0.1065.66"	-> raspi2 branch
"UBUNTU: Ubuntu-4.4.0.1067.60"	-> snapdragon branch
"UBUNTU: Ubuntu-4.4.0.1026.29"	-> aws branch
"UBUNTU: Ubuntu-4.4.0.1022.24"	-> gke branch

The main reason for this pull is to fix the kernel version used to build the
snap, by passing the exact requested version from the consumer snapcraft's yaml
to master/Makefile.

Among the changes in this pull, we have:

-split the PACKAGE argument in KERNEL and PKGS, and made KERNEL a mandatory
 parameter
-introduced a linux-pc-kernel meta pkg for i386 and amd64 pc-kernel variants,
 internally it will be rewritten as linux-signed-image-generic or
 linux-image-generic depending on the target arch
-made the child branches (pc, raspi2, snapdragon, aws and gke) ask for a specific kernel
 version via master/Makefile - that stops us from repackaging the latest kernel
 version available in the archive, no matter the version we really wanted
-stop using the -proposed pocket for the arm kernels
-adjust the kernel version to follow the linux-image packages

There are two fallouts of this change:

1) from now, snapcraft.yaml version field will follow the linux package version:

$ rmadison -s xenial-updates linux-snapdragon
 linux-snapdragon | 4.4.0-1067.72 | xenial-updates/universe | source
 linux-snapdragon | 4.4.0.1067.60 | xenial-updates/universe | arm64

the secondo onei (4.4.0.1067.60), instead of the first one (4.4.0-1067.72)

2) the kernel snap will reflect the change:

$ snap list
...
dragonboard-kernel  4.4.0.1067.60              x1               kernel

Tested by rebuilding all the kernel snaps several times (see the -test snap
packages equivalent in lp), and by rebuilding an -edge pc/raspi2/snapdragon
image, booting it out and competing the initialization.

For the record, i'm copying the body of this message to the patch that applies to
master/Makefile.

Paolo Pisati (1):
  Enforce kernel version, and several other changes

 Makefile | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

-- 
2.7.4