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, 99 insertions, 0 deletions

diff --git a/patches/fuel-plugin-ovs/0002-Cleanup-Drop-git-dependency.patch b/patches/fuel-plugin-ovs/0002-Cleanup-Drop-git-dependency.patch
new file mode 100644
index 00000000..22aa570e
--- /dev/null
+++ b/patches/fuel-plugin-ovs/0002-Cleanup-Drop-git-dependency.patch
@@ -0,0 +1,99 @@
+From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+Date: Sat, 3 Sep 2016 20:42:06 +0200
+Subject: [PATCH] Cleanup: Drop git dependency
+
+We only use git to fetch upstream contents, this can be achieved
+with a simple wget.
+
+Change-Id: I07f681e44253cc1f390943eb121a694bf2c9d95f
+Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
+---
+ ovs_build/build-ovs-dpdk.sh     | 10 +++++-----
+ ovs_build/build-ovs-nsh-dpdk.sh | 12 ++++++------
+ 2 files changed, 11 insertions(+), 11 deletions(-)
+
+diff --git a/ovs_build/build-ovs-dpdk.sh b/ovs_build/build-ovs-dpdk.sh
+index aeb5eb7..01ba032 100755
+--- a/ovs_build/build-ovs-dpdk.sh
++++ b/ovs_build/build-ovs-dpdk.sh
+@@ -3,14 +3,14 @@
+ set -eux
+
+ OVS_COMMIT=9f4ecd654dbcb88b15a424445184591fc887537e
+-URL_OVS=https://github.com/openvswitch/ovs.git
++URL_OVS_ARCHIVE=https://github.com/openvswitch/ovs/archive
+ BUILD_DEB=${BUILD_DEB:-/deb}
+ BUILD_SRC="$(dirname `readlink -f $0`)"
+ BUILD_DEST=${BUILD_DEST:-/tmp/ovs-dpdk}
+
+ export DEB_BUILD_OPTIONS='parallel=8 nocheck'
+
+-sudo apt-get -y install devscripts dpkg-dev git wget
++sudo apt-get -y install devscripts dpkg-dev wget
+
+ rm -rf ${BUILD_DEST}; mkdir -p ${BUILD_DEST}
+
+@@ -62,9 +62,9 @@ sudo apt-get install -y autoconf \
+                python-zopeinterface \
+                python-six
+
+-git clone https://github.com/openvswitch/ovs.git
+-cd ovs; git checkout ${OVS_COMMIT}; rm -rf .git
+-cd ${BUILD_DEST}; cp -r ovs ovs-dpdk
++wget -c ${URL_OVS_ARCHIVE}/${OVS_COMMIT}.tar.gz
++tar xzf ${OVS_COMMIT}.tar.gz; mv ovs-${OVS_COMMIT} ovs
++cp -r ovs ovs-dpdk
+
+ cd ovs-dpdk
+ cp -r ${BUILD_SRC}/openvswitch-dpdk_2.5.90/debian .
+diff --git a/ovs_build/build-ovs-nsh-dpdk.sh b/ovs_build/build-ovs-nsh-dpdk.sh
+index 3d7edea..25e4b6c 100755
+--- a/ovs_build/build-ovs-nsh-dpdk.sh
++++ b/ovs_build/build-ovs-nsh-dpdk.sh
+@@ -3,7 +3,7 @@
+ set -eux
+
+ OVS_COMMIT=7d433ae57ebb90cd68e8fa948a096f619ac4e2d8
+-URL_OVS=https://github.com/openvswitch/ovs.git
++URL_OVS_ARCHIVE=https://github.com/openvswitch/ovs/archive
+ OVS_VER=${OVS_VER:-2.5.90}
+ BUILD_HOME=$HOME/nsh
+ BUILD_DEST=${BUILD_DEST:-/deb}
+@@ -12,7 +12,7 @@ DIR="$(dirname `readlink -f $0`)"
+ export DEB_BUILD_OPTIONS='parallel=8 nocheck'
+
+ sudo apt-get build-dep openvswitch -y
+-sudo apt-get -y install devscripts dpkg-dev git wget
++sudo apt-get -y install devscripts dpkg-dev wget
+
+ rm -rf ${BUILD_HOME}; mkdir -p ${BUILD_HOME}
+
+@@ -35,7 +35,7 @@ sudo apt-get install -y debhelper \
+                texlive-fonts-recommended  \
+                texlive-latex-extra
+
+-cd dpdk-2.2.0; rm -rf debian/patches/;
++cd dpdk-2.2.0; rm -rf debian/patches/
+ cat << EOF > debian/changelog
+ dpdk (2.2.0-1) unstable; urgency=low
+   * DPDK 2.2.0
+@@ -68,8 +68,8 @@ sudo apt-get install -y autoconf \
+                python-zopeinterface \
+                python-six
+
+-git clone https://github.com/openvswitch/ovs.git
+-cd ovs; git checkout ${OVS_COMMIT}
++wget -c ${URL_OVS_ARCHIVE}/${OVS_COMMIT}.tar.gz
++tar xzf ${OVS_COMMIT}.tar.gz; mv ovs-${OVS_COMMIT} ovs
+ PATCHES=$(cd ${DIR}/patches; echo *patch)
+ for patch in ${PATCHES}
+ do
+@@ -82,7 +82,7 @@ cd ../openvswitch-dpdk-${OVS_VER}
+ sed -i "s/include\/rte_config.h/include\/dpdk\/rte_config.h/" acinclude.m4
+ sed -i 's/DPDK_INCLUDE=.*/DPDK_INCLUDE=$RTE_SDK\/include\/dpdk/'  acinclude.m4
+ autoreconf --install
+-rm -rf debian/patches/ .git;
++rm -rf debian/patches/
+ cat << EOF > debian/changelog
+ openvswitch-dpdk (${OVS_VER}-1.nsh) unstable; urgency=low
+   * Support NSH