ci,build: add check to ensure that ADI defconfigs are up-to-date

We want to check/make-sure that savedefconfig has been run. This a
minimal/trivial check.

But more importantly, we want to make sure that all defconfigs are correct
for each Vivado version we want to support.

Signed-off-by: Alexandru Ardelean <[email protected]>

.travis.yml

@@ -0,0 +1,22 @@
+language: c
+
+branches:
+  except:
+  - adi-2019.02.2 # current rebased versions of master; change this when updating kernel ver
+
+os: linux
+
+notifications:
+  email:
+    on_success: change
+    on_failure: always
+
+matrix:
+  include:
+    - env: BUILD_TYPE=ensure_defconfigs_uptodate
+           VIVADO_DEFCONFIGS="microblaze_adi microblaze_adi_rootfs
+                              zynq_m2k zynq_pluto zynq_sidekiqz2"
+           VIVADO_VERSIONS="2018_3 2019_1"
+
+script:
+  - ./ci/run-build.sh

ci/.gitignore

@@ -0,0 +1 @@
+cache/*

ci/lib.sh

@@ -0,0 +1,43 @@
+#!/bin/sh -e
+
+TRAVIS_BUILD_DIR=${TRAVIS_BUILD_DIR:-'./'}
+
+command_exists() {
+	local cmd=$1
+	[ -n "$cmd" ] || return 1
+	type "$cmd" >/dev/null 2>&1
+}
+
+ensure_command_exists() {
+	local cmd="$1"
+	local package="$2"
+	[ -n "$cmd" ] || return 1
+	[ -n "$package" ] || package="$cmd"
+	! command_exists "$cmd" || return 0
+	# go through known package managers
+	for pacman in apt-get brew yum ; do
+		command_exists $pacman || continue
+		$pacman install -y $package || {
+			# Try an update if install doesn't work the first time
+			$pacman -y update && \
+				$pacman install -y $package
+		}
+		return $?
+	done
+	return 1
+}
+
+ensure_command_exists wget
+ensure_command_exists sudo
+
+LOCAL_BUILD_DIR="ci/cache"
+FULL_BUILD_DIR="${TRAVIS_BUILD_DIR}/${LOCAL_BUILD_DIR}"
+
+# Get the common stuff from libiio
+[ -f "${FULL_BUILD_DIR}/lib.sh" ] || {
+	mkdir -p "${FULL_BUILD_DIR}"
+	wget https://raw.githubusercontent.com/analogdevicesinc/libiio/master/CI/travis/lib.sh \
+		-O "${FULL_BUILD_DIR}/lib.sh"
+}
+
+. "${FULL_BUILD_DIR}/lib.sh"

ci/run-build.sh

@@ -0,0 +1,117 @@
+#!/bin/bash
+set -e
+
+. ./ci/lib.sh
+
+tolower() {
+	echo "$1" | tr A-Z a-z
+}
+
+_check_defconfig() {
+	local defconfig="$1"
+
+	if [ ! -f "configs/$defconfig" ] ; then
+		echo_red "File does not exist 'configs/${defconfig}'"
+		return 1
+	fi
+
+	make ${defconfig}
+	make savedefconfig
+
+	git diff --exit-code || {
+		echo_red "Defconfig file should be updated: 'configs/${defconfig}"
+		echo_red "Run 'make savedefconfig', overwrite it and commit it"
+		git checkout .
+		return 1
+	}
+
+	return 0
+}
+
+_check_gcc_and_kernel_defconfig() {
+	local defconfig="$1"
+	local ker_ver="$2"
+	local gcc_ver="$3"
+	local atleast_one_failure=0
+
+	if ! grep -q "BR2_TOOLCHAIN_EXTERNAL_GCC_${gcc_ver}=y" "configs/$defconfig" ; then
+		echo_red "Did not find symbol 'BR2_TOOLCHAIN_EXTERNAL_GCC_${gcc_ver}=y' in configs/$defconfig"
+		atleast_one_failure=1
+	fi
+
+	if ! grep -q "BR2_TOOLCHAIN_EXTERNAL_HEADERS_${ker_ver}=y" "configs/$defconfig" ; then
+		echo_red "Did not find symbol 'BR2_TOOLCHAIN_EXTERNAL_HEADERS_${ker_ver}=y' in configs/$defconfig"
+		atleast_one_failure=1
+	fi
+
+	return $atleast_one_failure
+}
+
+_check_defconfig_vivado() {
+	local defconfig="$1"
+	local vivado_ver="$2"
+	local atleast_one_failure=0
+
+	local ker_ver gcc_ver
+
+	if [ "$vivado_ver" = "2019_1" ] ; then
+		gcc_ver=8
+		ker_ver=4_19
+	elif [ "$vivado_ver" = "2018_3" ] ; then
+		gcc_ver=7
+		ker_ver=4_14
+	else
+		echo_red "Unsupported version '$vivado_ver'"
+		return 1
+	fi
+
+	_check_gcc_and_kernel_defconfig "$defconfig" "$ker_ver" "$gcc_ver" || atleast_one_failure=1
+
+	_check_defconfig "$defconfig" || atleast_one_failure=1
+
+	return $atleast_one_failure
+}
+
+_ensure_defconfigs_uptodate() {
+	local toolprefix="$1"
+	local atleast_one_failure=0
+	local deconfigs versions defconfig
+
+	eval defconfigs=\$${toolprefix}_DEFCONFIGS
+
+	[ -n "$defconfigs" ] || {
+		echo_red "No ${toolprefix}_DEFCONFIGS list provided"
+		return 1
+	}
+
+	eval versions=\$${toolprefix}_VERSIONS
+
+	[ -n "$versions" ] || {
+		echo_red "No ${toolprefix}_VERSIONS list provided"
+		return 1
+	}
+
+	local toolprefix_lower=$(tolower $toolprefix)
+	for config in $defconfigs ; do
+		for version in $versions ; do
+			defconfig=${config}_${toolprefix_lower}_${version}_defconfig
+			if _check_defconfig_${toolprefix_lower} "$defconfig" "$version" ; then
+				echo_green "'configs/${defconfig} looks good"
+				echo
+			else
+				atleast_one_failure=1
+			fi
+		done
+	done
+
+	return $atleast_one_failure
+}
+
+build_ensure_defconfigs_uptodate() {
+	_ensure_defconfigs_uptodate VIVADO
+}
+
+BUILD_TYPE=${BUILD_TYPE:-${1}}
+BUILD_TYPE=${BUILD_TYPE:-default}
+
+build_${BUILD_TYPE}