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, 50 insertions, 0 deletions

diff --git a/patches/opnfv-fuel/multiarch-plugins/0001-fpb-Support-multiple-versions-of-packages.patch b/patches/opnfv-fuel/multiarch-plugins/0001-fpb-Support-multiple-versions-of-packages.patch
new file mode 100644
index 00000000..35bef5c8
--- /dev/null
+++ b/patches/opnfv-fuel/multiarch-plugins/0001-fpb-Support-multiple-versions-of-packages.patch
@@ -0,0 +1,50 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Tue, 23 Aug 2016 15:48:56 +0200
+Subject: [PATCH] fpb: Support multiple versions of packages
+
+This is a temporary change until the fpm installed by pip gets
+the change from [1] included.
+
+[1] https://review.openstack.org/#/c/311031/
+
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ build/docker/Dockerfile | 9 ++++++++-
+ build/docker/Makefile   | 4 ++++
+ 2 files changed, 12 insertions(+), 1 deletion(-)
+
+diff --git a/build/docker/Dockerfile b/build/docker/Dockerfile
+index 624f233..ab0d0d3 100644
+--- a/build/docker/Dockerfile
++++ b/build/docker/Dockerfile
+@@ -23,7 +23,14 @@ RUN apt-get install -y software-properties-common python-software-properties \
+     build-essential ruby-dev rubygems-integration python-pip git rpm createrepo dpkg-dev
+
+ RUN gem install fpm
+-RUN pip install fuel-plugin-builder
++
++# Temporary: fpb needs to be built from sources
++# RUN pip install fuel-plugin-builder
++RUN git clone -b INSERT_FPB_BRANCH INSERT_FPB_REPO && cd fuel-plugins && \
++    (test -z INSERT_FPB_CHANGE || \
++        (git fetch origin INSERT_FPB_CHANGE && git checkout FETCH_HEAD)) && \
++    python setup.py sdist && pip install ./dist/fuel-plugin-builder-*.tar.gz && \
++    cd .. && rm -rf fuel-plugins
+
+ RUN echo "ALL ALL=NOPASSWD: ALL" > /etc/sudoers.d/open-sudo
+ RUN echo "Defaults env_keep += \"ftp_proxy http_proxy https_proxy no_proxy RSYNC_PROXY RSYNC_CONNECT_PROG npm_config_registry\"" > /etc/sudoers.d/keep-proxies
+diff --git a/build/docker/Makefile b/build/docker/Makefile
+index 783881e..74f6346 100644
+--- a/build/docker/Makefile
++++ b/build/docker/Makefile
+@@ -34,6 +34,10 @@ all:	.docker
+
+ .dockercfg: $(FILES)
+ 	cp Dockerfile ubuntu-builder/Dockerfile
++	# Only add FPB ENVs when set - needed to fetch, patch and install FPB
++	test -n "${FPB_REPO}" && sed -i "s;INSERT_FPB_REPO;${FPB_REPO};" ubuntu-builder/Dockerfile || exit 0
++	test -n "${FPB_BRANCH}" && sed -i "s;INSERT_FPB_BRANCH;${FPB_BRANCH};" ubuntu-builder/Dockerfile || exit 0
++	test -n "${FPB_CHANGE}" && sed -i "s;INSERT_FPB_CHANGE;${FPB_CHANGE};" ubuntu-builder/Dockerfile || exit 0
+ 	# Only add proxy ENVs where set in host - needed to pull the base Ubuntu image
+ 	test -n "${http_proxy}" && sed -i "s;INSERT_HTTP_PROXY;${http_proxy};" ubuntu-builder/Dockerfile || exit 0
+ 	test -n "${https_proxy}" && sed -i "s;INSERT_HTTPS_PROXY;${https_proxy};" ubuntu-builder/Dockerfile || exit 0