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, 0 insertions, 139 deletions

diff --git a/patches/fuel-plugin-ovs/0008-AArch64-Add-support-for-downloading-prebuilt-DEBs.patch b/patches/fuel-plugin-ovs/0008-AArch64-Add-support-for-downloading-prebuilt-DEBs.patch
deleted file mode 100644
index 0f7e072c..00000000
--- a/patches/fuel-plugin-ovs/0008-AArch64-Add-support-for-downloading-prebuilt-DEBs.patch
+++ /dev/null
@@ -1,139 +0,0 @@
-From: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
-Date: Mon, 12 Sep 2016 18:02:42 +0200
-Subject: [PATCH] AArch64: Add support for downloading prebuilt DEBs
-
-Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
----
- ovs_build/build-ovs-armband-fetch.sh | 45 ++++++++++++++++++++++++++++++++++++
- ovs_build/build-ovs-dpdk.sh          | 18 ++++++++++++++-
- ovs_build/build-ovs-nsh-dpdk.sh      | 15 +++++++++++-
- 3 files changed, 76 insertions(+), 2 deletions(-)
- create mode 100755 ovs_build/build-ovs-armband-fetch.sh
-
-diff --git a/ovs_build/build-ovs-armband-fetch.sh b/ovs_build/build-ovs-armband-fetch.sh
-new file mode 100755
-index 0000000..a810b93
---- /dev/null
-+++ b/ovs_build/build-ovs-armband-fetch.sh
-@@ -0,0 +1,45 @@
-+#!/bin/bash
-+
-+set -eux
-+
-+# armband_fetch will download all binaries for one debian source package
-+#
-+# Usage:
-+#   armband_fetch <src_deb_name> <src_deb_version> \
-+#                 [<repo_base_url> \
-+#                 [<repo_Sources_relative_url> \
-+#                 [<repo_Packages_relative_url>]]] \
-+#
-+# e.g.:
-+#   armband_fetch dpdk 16.07-0~u14.04+mos1+mos9.0+amos1 \
-+#     https://linux.enea.com/mos-repos/ubuntu/9.0 \
-+#     dists/mos9.0-fuel-plugin-ovs/main/source/Sources \
-+#     dists/mos9.0-fuel-plugin-ovs/main/binary-arm64/Packages
-+function armband_fetch() {
-+  local name=$1
-+  local ver=${2//\+/\\\+}
-+  local repo_base_url=${3:-http://linux.enea.com/mos-repos/ubuntu/9.0}
-+  local repo_Sources_url=${4:-dists/mos9.0-fuel-plugin-ovs/main/source/Sources}
-+  local repo_Packages_url=${5:-dists/mos9.0-fuel-plugin-ovs/main/binary-arm64/Packages}
-+  local found=false
-+
-+  # Fetch Sources & Packages files if not already present
-+  if [ ! -f Sources -o ! -f Packages ]; then
-+    sudo apt-get -y --force-yes install wget
-+    wget -c "${repo_base_url}/${repo_Sources_url}"
-+    wget -c "${repo_base_url}/${repo_Packages_url}"
-+  fi
-+
-+  L=$(grep -Pzo "(?s)(?<=^Package: ${name}\n^Binary: )(\N*?)(?=\n^Version: ${ver})" \
-+    Sources | tr -d ',')
-+  for deb_binary in ${L}; do
-+    D=$(grep -Po "(?<=^Filename: )(.*?\/${deb_binary}_${ver}_.*?\.deb)" Packages) || true
-+    if [ -n "${D}" ]; then
-+      wget -c "${repo_base_url}/${D}" && found=true
-+    fi
-+  done
-+  if [ ${found} = false ]; then
-+    echo "ERROR: Could not find DEBs for pkg/ver: ${name}/${ver}"
-+    exit 1
-+  fi
-+}
-diff --git a/ovs_build/build-ovs-dpdk.sh b/ovs_build/build-ovs-dpdk.sh
-index a0c50e3..8d70265 100755
---- a/ovs_build/build-ovs-dpdk.sh
-+++ b/ovs_build/build-ovs-dpdk.sh
-@@ -13,11 +13,13 @@ export DEB_BUILD_OPTIONS='parallel=8 nocheck'
- # AArch64 specifics, repository base URL, debian build versions
- AARCH64_REPO=${AARCH64_REPO:-'https://linux.enea.com/mos-repos/ubuntu/9.0'}
- AARCH64_DPDK_DEBV=${AARCH64_DPDK_DEBV:-'0~u14.04+mos1+mos9.0+amos1'}
-+AARCH64_OVS_DEBV=${AARCH64_OVS_DEBV:-'2.5.90-1'}
- 
- # Keep track of native arch (BUILD_ARCH) and target arch(s) (UBUNTU_ARCH)
- # All archs should be represented in `dpkg --print-architecture` format
- # UBUNTU_ARCH holds a space-separated list of target arch(s)
--# FIXME(armband): For now, only native building is supported!
-+# FIXME(armband): For now, only native building and/or downloading prebuilt
-+# debian binaries is supported!
- BUILD_ARCH=$(dpkg --print-architecture)
- UBUNTU_ARCH=${UBUNTU_ARCH:-${BUILD_ARCH}}
- 
-@@ -92,6 +94,20 @@ for ARCH in ${UBUNTU_ARCH}; do
- 
-     cd ${BUILD_DEST}/ovs
-     debian/rules build; fakeroot debian/rules binary
-+  else
-+    # FIXME(armband): No cross-build support yet, download prebuilt DEBs
-+    if [ ${ARCH} = 'arm64' ]; then
-+      source ${BUILD_SRC}/build-ovs-armband-fetch.sh
-+      # Fetch Sources/Packages from Armband and construct list of packages to download
-+      armband_fetch 'dpdk' "16.07-${AARCH64_DPDK_DEBV}"
-+      armband_fetch 'openvswitch-dpdk' "${AARCH64_OVS_DEBV}"
-+      armband_fetch 'openvswitch' "${AARCH64_OVS_DEBV}"
-+      # libxenstore (equivalent to `apt-get download` for native build)
-+      AARCH64_LIBXENSTORE='libxenstore3.0_4.4.2-0ubuntu0.14.04.6_arm64.deb'
-+      wget -c "http://ports.ubuntu.com/pool/main/x/xen/${AARCH64_LIBXENSTORE}"
-+    else
-+      echo "WARNING: Architecture [${ARCH}] does not provide precompiled DEBs, skipping!"
-+    fi
-   fi
- 
-   # Store DEBs in <${BUILD_DEB}/${ARCH}/> dir and cleanup
-diff --git a/ovs_build/build-ovs-nsh-dpdk.sh b/ovs_build/build-ovs-nsh-dpdk.sh
-index 59d8a79..9d8a837 100755
---- a/ovs_build/build-ovs-nsh-dpdk.sh
-+++ b/ovs_build/build-ovs-nsh-dpdk.sh
-@@ -11,10 +11,14 @@ DIR="$(dirname `readlink -f $0`)"
- 
- export DEB_BUILD_OPTIONS='parallel=8 nocheck'
- 
-+# AArch64 specifics, repository base URL, debian build versions
-+AARCH64_OVS_NSH_DEBV=${AARCH64_OVS_NSH_DEBV:-'2.5.90-1.nsh'}
-+
- # Keep track of native arch (BUILD_ARCH) and target arch(s) (UBUNTU_ARCH)
- # All archs should be represented in `dpkg --print-architecture` format
- # UBUNTU_ARCH holds a space-separated list of target arch(s)
--# FIXME(armband): For now, only native building is supported!
-+# FIXME(armband): For now, only native building and/or downloading prebuilt
-+# debian binaries is supported!
- BUILD_ARCH=$(dpkg --print-architecture)
- UBUNTU_ARCH=${UBUNTU_ARCH:-${BUILD_ARCH}}
- 
-@@ -119,6 +123,15 @@ openvswitch (${OVS_VER}-1.nsh) unstable; urgency=low
-  -- Open vSwitch team <dev@openvswitch.org>  $(date --rfc-2822)
- EOF
-     debian/rules build; fakeroot debian/rules binary
-+  else
-+    # FIXME(armband): No cross-build support yet, download prebuilt DEBs
-+    if [ ${ARCH} = 'arm64' ]; then
-+      source ${DIR}/build-ovs-armband-fetch.sh
-+      # FIXME(armband): https://jira.opnfv.org/browse/ARMBAND-86
-+      armband_fetch 'openvswitch' "${AARCH64_OVS_NSH_DEBV}"
-+    else
-+      echo "WARNING: Architecture [${ARCH}] does not provide precompiled DEBs, skipping!"
-+    fi
-   fi
- 
-   # Store DEBs in <${BUILD_DEST}/${ARCH}/> dir and cleanup