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path: root/scripts/.aglsetup_genconfig.bash
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#n427'>427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481
#!/bin/bash

################################################################################
#
# The MIT License (MIT)
#
# Copyright (c) 2016 Stéphane Desneux <sdx@iot.bzh>
#           (c) 2016 Jan-Simon Möller <jsmoeller@linuxfoundation.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
################################################################################

# this script shouldn't be called directly, but through aglsetup.sh that will in 
# turn execute (source) generated instructions back in the parent shell, 
# whether it's bash, zsh, or any other supported shell

VERSION=1.1.0
DEFAULT_MACHINE=qemux86-64
DEFAULT_BUILDDIR=./build
VERBOSE=0
DEBUG=0

#SCRIPT=$(basename $BASH_SOURCE)
SCRIPT=aglsetup.sh
SCRIPTDIR=$(cd $(dirname $BASH_SOURCE) && pwd -P)
METADIR=$(cd $(dirname $BASH_SOURCE)/../.. && pwd -P)

function info() { echo "$@" >&2; }
function infon() { echo -n "$@" >&2; }
function error() { echo "ERROR: $@" >&2; return 1; }
function verbose() { [[ $VERBOSE == 1 ]] && echo "$@" >&2; return 0; }
function debug() { [[ $DEBUG == 1 ]] && echo "DEBUG: $@" >&2; return 0;}

info "------------ $SCRIPT: Starting"

#compute AGL_REPOSITORIES
AGL_REPOSITORIES=$(for x in $(ls -d $METADIR/*/templates/{machine,feature}); do echo $(basename $(dirname $(dirname $x))); done | sort -u)

function list_machines() {
	for x in $@; do
		for y in $(ls -d $METADIR/$x/templates/machine/* 2>/dev/null); do
			echo $(basename $y)
		done
	done
}

function list_all_machines() {
	for x in $AGL_REPOSITORIES; do
		list_machines $x
	done
}

function validate_builddir() {
	if [[ "$BUILDDIR" =~ [[:space:]] ]]; then
		error "Build dir '$BUILDDIR' shouldn't contain any space"
	fi
	debug "Build dir is valid"
}

function validate_machines() {
	list_all_machines | sort | uniq -c | while read cnt machine; do
		[[ $cnt == 1 ]] && continue
		info "Machine $machine found in the following repositories:"
		for x in $(ls -d $METADIR/*/templates/machine/$machine); do
			info "   - $x"
		done
		error "Multiple machine templates are not allowed"
	done
	debug "Machines list has no duplicate."
}

function list_features() {
	for x in $@; do
		for y in $(ls -d $METADIR/$x/templates/feature/* 2>/dev/null); do
			echo $(basename $y)
		done
	done
}

function list_all_features() {
	for x in $AGL_REPOSITORIES; do
		list_features $x
	done
}

function validate_features() {
	list_all_features | sort | uniq -c | while read cnt feature; do
		[[ $cnt == 1 ]] && continue;
		info "Feature $feature found in the following repositories:"
		for x in $(ls -d $METADIR/*/templates/feature/$feature); do
			info "   - $x"
		done
		error "Multiple feature templates are not allowed"
	done
	debug "Features list has no duplicate."
}

function find_machine_dir() {
	machine=$1
	for x in $AGL_REPOSITORIES; do
		dir=$METADIR/$x/templates/machine/$machine
		[[ -d $dir ]] && { echo $dir; return 0; }
	done
	return 1
}

function find_feature_dir() {
	feature=$1
	for x in $AGL_REPOSITORIES; do
		dir=$METADIR/$x/templates/feature/$feature
		[[ -d $dir ]] && { echo $dir; return 0; }
	done
	return 1
}

function usage() {
    cat <<EOF >&2
Usage: . $SCRIPT [options] [feature [feature [... ]]]

Version: $VERSION
Compatibility: bash, zsh, ksh

Options:
   -m|--machine <machine>
      what machine to use
      default: '$DEFAULT_MACHINE'
   -b|--build <directory>
      build directory to use
      default: '$DEFAULT_BUILDDIR'
   -s|--script <filename>
      file where setup script is generated
      default: none (no script)
   -f|--force
      flag to force overwriting any existing configuration
      default: false
   -v|--verbose
      verbose mode
      default: false
   -d|--debug
      debug mode
      default: false
   -h|--help
      get some help

EOF
	local buf
	
	echo "Available machines:" >&2
	for x in $AGL_REPOSITORIES; do
		buf=$(list_machines $x)
		[[ -z "$buf" ]] && continue
		echo "   [$x]"
		for y in $buf; do 
			[[ $y == $DEFAULT_MACHINE ]] && def="* " || def="  "
			echo "     $def$y"
		done
	done
	echo >&2

	echo "Available features:" >&2
	for x in $AGL_REPOSITORIES; do
		buf=$(list_features $x)
		[[ -z "$buf" ]] && continue
		echo "   [$x]"
		for feature in $buf; do
			print_feature="$feature"
			featuredir=$(find_feature_dir $feature)
			if [ -e $featuredir/included.dep ];then
				print_feature="$print_feature :($(find_feature_dependency $feature $feature))"
			fi;
			echo "       $print_feature"
		done
	done
	echo >&2
}

function append_fragment() {
	basefile=$1; shift # output file
	f=$1; shift # input file
	label=$(echo "$@")

	debug "adding fragment to $basefile: $f"
	echo >>$basefile
	echo "# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #" >>$basefile
	echo "# fragment { " >>$basefile
	[[ -f $f ]] && echo "# $f" >>$basefile || true
	echo "#" >>$basefile
	[[ -n "$label" ]] && echo "$label" >>$basefile
	[[ -f $f ]] && cat $f >>$basefile || true
	echo "#" >>$basefile
	echo "# }" >>$basefile
	echo "# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #" >>$basefile
	[[ -f $f ]] && echo $f >>$BUILDDIR/conf/fragments.log || true
}

function execute_setup() {
	script=$1
	debug "Executing script $script"
	opts="-e"
	[[ $DEBUG == 1 ]] && opts="$opts -x"
	pushd $BUILDDIR &>/dev/null
		$BASH $opts $script \
			&& rc=0 \
			|| { rc=$?; error "Script $script failed"; }
	popd &>/dev/null
	return $rc
}


# process all fragments
FRAGMENTS_BBLAYERS=""
FRAGMENTS_LOCALCONF=""
FRAGMENTS_SETUP=""
function process_fragments() {
	for dir in "$@"; do
		debug "processing fragments in dir $dir"

		verbose "   Searching fragments: $dir"

		# lookup for files with priorities specified: something like xx_bblayers.conf.yyyyy.inc
		for x in $(ls $dir/??[._]bblayers.conf*.inc 2>/dev/null); do
			FRAGMENTS_BBLAYERS="$FRAGMENTS_BBLAYERS $(basename $x):$x"
			verbose "      priority $(basename $x | cut -c1-2): $(basename $x)"
		done

		# same for local.conf
		for x in $(ls $dir/??[._]local.conf*.inc 2>/dev/null); do
			FRAGMENTS_LOCALCONF="$FRAGMENTS_LOCALCONF $(basename $x):$x"
			verbose "      priority $(basename $x | cut -c1-2): $(basename $x)"
		done

		# same fot setup.sh
		for x in $(ls $dir/??[._]setup*.sh 2>/dev/null); do
			FRAGMENTS_SETUP="$FRAGMENTS_SETUP $(basename $x):$x"
			verbose "      priority $(basename $x | cut -c1-2): $(basename $x)"
		done
	done
}

function containsFeature () {
  for feature in $1; do
    [[ "$feature" == "$2" ]] && return 1;
  done;
  return 0;
}

function find_feature_dependency() {
	res_dep_features=""
	featuredir=$(find_feature_dir $1)
	full_feature=$2;
	if [ -e $featuredir/included.dep ]; then
		dep_features="$(cat $featuredir/included.dep)"
		for dep_feature in $dep_features; do
			full_feature="$full_feature $res_dep_features"
			res_dep_features="$res_dep_features $dep_feature"
			if  containsFeature $dep_feature $full_feature ; then
				res_dep_features="$res_dep_features $(find_feature_dependency $dep_feature $full_feature)"
			fi;
		done;
	fi;
	echo "$res_dep_features";
	return 0;
}

GLOBAL_ARGS=( "$@" )
debug "Parsing arguments: $@"
TEMP=$(getopt -o m:b:s:fvdh --long machine:,builddir:,script:,force,verbose,debug,help -n $SCRIPT -- "$@")
[[ $? != 0 ]] && { usage; exit 1; }
eval set -- "$TEMP"

set -e

### default options values
MACHINE=$DEFAULT_MACHINE
BUILDDIR=$DEFAULT_BUILDDIR
SETUPSCRIPT=
FORCE=

while true; do
	case "$1" in
		-m|--machine)  MACHINE=$2; shift 2;;
		-b|--builddir) BUILDDIR=$2; shift 2;;
		-s|--setupscript) SETUPSCRIPT=$2; shift 2;;
		-f|--force) FORCE=1; shift;;
		-v|--verbose) VERBOSE=1; shift;;
		-d|--debug) VERBOSE=1; DEBUG=1; shift;;
		-h|--help)     HELP=1; shift;;
		--)            shift; break;;
		*) error "Arguments parsing error"; exit 1;;
	esac
done

[[ "$HELP" == 1 ]] && { usage; exit 0; }

verbose "Command line arguments: ${GLOBAL_ARGS[@]}"

# the remaining args are the features
FEATURES="$@"

# validate the machine list
debug "validating machines list"
validate_machines

# validate the machine
debug "validating machine $MACHINE"
find_machine_dir $MACHINE >/dev/null || error "Machine '$MACHINE' not found in [ $(list_all_machines)]"

# validate the features list
debug "validating features list"
validate_features

TMP_FEATURES="";
for FEATURE in $FEATURES;do
    TMP_FEATURES="$TMP_FEATURES $FEATURE"
    TMP_FEATURES="$TMP_FEATURES $(find_feature_dependency $FEATURE $TMP_FEATURES)"
done
# remove duplicate features if any
FEATURES=$(for x in $TMP_FEATURES; do echo $x; done | sort -u | awk '{printf("%s ",$1);}')

# validate the features
for f in $FEATURES; do
	debug "validating feature $f"
	find_feature_dir $f >/dev/null || error "Feature '$f' not found in [ $(list_all_features)]"
done

# validate build dir
debug "validating builddir $BUILDDIR"
BUILDDIR=$(mkdir -p "$BUILDDIR" && cd "$BUILDDIR" && pwd -P)
validate_builddir

###########################################################################################
function dump_log() {
	info "    ------------ $(basename $1) -----------------"
	sed 's/^/   | /g' $1
	info "    ----------------------------------------"
}

function genconfig() {
	info "Generating configuration files:"
	info "   Build dir: $BUILDDIR"
	info "   Machine: $MACHINE"
	info "   Features: $FEATURES"

	# step 1: run usual OE setup to generate conf dir
	export TEMPLATECONF=$(cd $SCRIPTDIR/../templates/base && pwd -P)
	debug "running oe-init-build-env with TEMPLATECONF=$TEMPLATECONF"
	info "   Running $METADIR/poky/oe-init-build-env"
	info "   Templates dir: $TEMPLATECONF"

	CURDIR=$(pwd -P)
	. $METADIR/poky/oe-init-build-env $BUILDDIR >/dev/null
	cd $CURDIR

	# step 2: concatenate other remaining fragments coming from base
	process_fragments $TEMPLATECONF

	# step 3: fragments for machine
	process_fragments $(find_machine_dir $MACHINE)

	# step 4: fragments for features
	for feature in $FEATURES; do
		process_fragments $(find_feature_dir $feature)
	done

	# step 5: sort fragments and append them in destination files
	FRAGMENTS_BBLAYERS=$(sed 's/ /\n/g' <<<$FRAGMENTS_BBLAYERS | sort)
	debug "bblayer fragments: $FRAGMENTS_BBLAYERS"
	info "   Config: $BUILDDIR/conf/bblayers.conf"
	for x in $FRAGMENTS_BBLAYERS; do
		file=${x/#*:/}
		append_fragment $BUILDDIR/conf/bblayers.conf $file
		verbose "      + $file"
	done

	FRAGMENTS_LOCALCONF=$(sed 's/ /\n/g' <<<$FRAGMENTS_LOCALCONF | sort)
	debug "localconf fragments: $FRAGMENTS_LOCALCONF"
	info "   Config: $BUILDDIR/conf/local.conf"
	for x in $FRAGMENTS_LOCALCONF; do
		file=${x/#*:/}
		append_fragment $BUILDDIR/conf/local.conf $file
		verbose "      + $file"
	done

	FRAGMENTS_SETUP=$(sed 's/ /\n/g' <<<$FRAGMENTS_SETUP | sort)
	debug "setup fragments: $FRAGMENTS_SETUP"
	cat <<EOF >$BUILDDIR/conf/setup.sh
#!/bin/bash

# this script has been generated by $BASH_SOURCE

export MACHINE="$MACHINE"
export FEATURES="$FEATURES"
export BUILDDIR="$BUILDDIR"
export METADIR="$METADIR"

echo "--- beginning of setup script"
EOF
	info "   Setup script: $BUILDDIR/conf/setup.sh"
	for x in $FRAGMENTS_SETUP; do
		file=${x/#*:/}
		append_fragment $BUILDDIR/conf/setup.sh $file "echo '--- fragment $file'"
		verbose "      + $file"
	done
	append_fragment $BUILDDIR/conf/setup.sh "" "echo '--- end of setup script'"

	infon "   Executing setup script ... "
	execute_setup $BUILDDIR/conf/setup.sh 2>&1 | tee $BUILDDIR/conf/setup.log
	[[ ${PIPESTATUS[0]} == 0 ]] && {
		info "OK"
		[[ $VERBOSE == 1 ]] && dump_log $BUILDDIR/conf/setup.log
		rm $BUILDDIR/conf/setup.sh
	} \
	|| {
		info "FAIL: please check $BUILDDIR/conf/setup.log"
		dump_log $BUILDDIR/conf/setup.log
		return 1
	}
	# NOTE: the setup.sh script is removed if execution succeeded (only the log remains)
}

###########################################################################################

# check for overwrite
[[ $FORCE -eq 1 ]] && rm -f \
	$BUILDDIR/conf/local.conf \
	$BUILDDIR/conf/bblayers.conf \
	$BUILDDIR/conf/setup.* \
	$BUILDDIR/conf/*.log

if [[ -f $BUILDDIR/conf/local.conf || -f $BUILDDIR/conf/bblayers.conf ]]; then
	info "Configuration files already exist:"
	for x in $BUILDDIR/conf/local.conf $BUILDDIR/conf/bblayers.conf; do
		[[ -f $x ]] && info "   - $x" 
	done
	info "Skipping configuration files generation."
	info "Use option -f|--force to overwrite existing configuration."
else
	genconfig
fi

# always generate setup script in builddir: it can be sourced later manually without re-running the setup
infon "Generating setup file: $BUILDDIR/agl-init-build-env ... "
cat <<EOF >$BUILDDIR/agl-init-build-env
. $METADIR/poky/oe-init-build-env $BUILDDIR
if [ -n "\$DL_DIR" ]; then
	BB_ENV_EXTRAWHITE="\$BB_ENV_EXTRAWHITE DL_DIR"
fi
if [ -n "\$SSTATE_DIR" ]; then
	 BB_ENV_EXTRAWHITE="\$BB_ENV_EXTRAWHITE SSTATE_DIR" 
fi
export BB_ENV_EXTRAWHITE
unset TEMPLATECONF
EOF
info "OK"

# finally, generate output script if requested by caller
if [[ -n "$SETUPSCRIPT" ]]; then
	debug "generating setupscript in $SETUPSCRIPT"
	cat <<EOF >$SETUPSCRIPT
. $BUILDDIR/agl-init-build-env
EOF
fi

info "------------ $SCRIPT: Done"