build: Rework patch mechanism for Fuel submodules

While refactoring the patching mechanism, take care of:
- Sync submodule handling with Fuel@OPFNV;
- build: Investigate/prepare for moving patches to Fuel@OPNFV;
- build: Investigate divergent fuel-mirror;
- ISO build: cacheid for Fuel comps should not depend on
  Armband git commit;

CHANGE:
 Rename/shuffle patches while grouping them in "features",
 preparing for upstreaming them to Fuel@OPNFV and beyond.

CHANGE:
 Allow linking patches for better representing the dependency
 between one patch and different features.
 e.g. 0001-Add-arch-to-nailgun-release-and-target-image.patch:
   - part of `multiarch-fuel`, because it extends Fuel;
   - part of `direct-kernel-boot`, as arch is required for that;
   - part of `cross-bootstrap`, target image is arch-dependent;
 NOTE: Patch links are not staged to Fuel@OPNFV, they only serve
 as markers that a specific patch is part of a feature.

CHANGE:
 Kill all Fuel component submodules, now handled in Fuel@OPNFV:
  - fuel-agent
  - fuel-astute
  - fuel-library
  - fuel-mirror
  - fuel-nailgun-agent
  - fuel-web

CHANGE:
 Move armband-fuel-config.mk to armband git root.

FIXME: m1.micro-Increase-profile-RAM-size-to-128MB.patch is NOT
 part of `cross-bootstrap` feature, but patch context says so ...

FIXME: 0001-Add-arm64-deb-repositories-setup.patch is broken at
 `make patches-export` by removing spaces at EOL.

v2 -> v3:
 * Phony patch support (links to show a patch belongs to a feature);
 * Updated README.md
v3 -> v7:
 * Re-export Fuel submodules & plugins patches (update patch context);
 * Update Cavium mail addresses (s/caviumnetworks.com/cavium.com/);
 * Ignore submodule changes;
 * Add armband git repo info to gitinfo_fuel.txt at build time;

Implements: ARMBAND-136
Closes-bug: ARMBAND-95
Closes-bug: ARMBAND-93
Closes-bug: ARMBAND-92

Change-Id: I1a236d9f43b2e6dca22055911f696b43c22b5973
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>

1 files changed, 31 insertions, 0 deletions

diff --git a/patches/fuel-agent/cross-bootstrap/0005-FIXME-Add-force-yes-to-apt-get-dist-upgrade.patch b/patches/fuel-agent/cross-bootstrap/0005-FIXME-Add-force-yes-to-apt-get-dist-upgrade.patch
new file mode 100644
index 00000000..654ddeab
--- /dev/null
+++ b/patches/fuel-agent/cross-bootstrap/0005-FIXME-Add-force-yes-to-apt-get-dist-upgrade.patch
@@ -0,0 +1,31 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Fri, 8 Apr 2016 15:28:43 +0200
+Subject: [PATCH] FIXME: Add --force-yes to apt-get dist-upgrade.
+
+arm64 udev in Ubuntu Trusty is broken, so we had to provide our own
+patched udev package in armband MOS repos.
+
+Due to dpkg version comparison algorithm, our MOS version of udev
+is considered a downgrade, which requires --force-yes for
+apt-get dist-upgrade to work and pick up this version, otherwise
+bootstrap/target image build would fail with apt-get error code 100.
+
+This change can be dropped later, if other packages do not manifest
+the same behavior.
+---
+ fuel_agent/utils/build.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/fuel_agent/utils/build.py b/fuel_agent/utils/build.py
+index 5761cc5..5557810 100644
+--- a/fuel_agent/utils/build.py
++++ b/fuel_agent/utils/build.py
+@@ -107,7 +107,7 @@ def run_apt_get(chroot, packages, eatmydata=False, attempts=10):
+     time in X times.
+     """
+     for action in ('update', 'dist-upgrade'):
+-        cmds = ['chroot', chroot, 'apt-get', '-y', action]
++        cmds = ['chroot', chroot, 'apt-get', '-y', '--force-yes', action]
+         stdout, stderr = utils.execute(*cmds, attempts=attempts)
+         LOG.debug('Running apt-get %s completed.\nstdout: %s\nstderr: %s',
+                   action, stdout, stderr)