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#!/bin/bash

# SPDX-License-Identifier: GPL-2.0-or-later
#

LOGS=$(pwd)/logs
STAMPS=$(pwd)/stamps
BUILDS=$(pwd)/builds
SOURCES=$(pwd)/src

NOTIFY=$(pwd)/notify.sh

mkdir -p "$LOGS"
mkdir -p "$STAMPS"
mkdir -p "$BUILDS"
mkdir -p "$SOURCES"

ID=$(basename $0)

libcamera_version() {
	project="$1"

	cd "$project" && ./utils/gen-version.sh
}

libcamera_branch() {
	project="$1"
	git -C "$project" rev-parse --abbrev-ref HEAD
}

log_filename () {
	echo "$LOGS/$1.log"
}

buildstamp_filename() {
	echo "$STAMPS/$1.version"
}

builddir() {
	echo "$BUILDS/$1"
}

srcdir() {
	echo "$SOURCES/$1"
}

check_version() {
	project="$1"
	ID="$2"

	VERSION=$(libcamera_version "$project")
	last_build=$(buildstamp_filename $ID)
	export VERSION
	export last_build

	## Only rebuild on version change
	touch "$last_build"

	PREV_VERSION=$(cat "$last_build")

	if [[ x"$PREV_VERSION" == x"$VERSION" ]] ; then
		project=$(realpath --relative-to=. "$project")
		echo "$ID: $project has no version change, no actions."
		exit
	fi
}

# Check to see that the stamp file was successfully updated
validate_version() {
	project="$1"
	ID="$2"

	VERSION=$(libcamera_version "$project")
	last_build=$(buildstamp_filename $ID)
	export VERSION
	export last_build

	## Only rebuild on version change
	touch "$last_build"

	PREV_VERSION=$(cat "$last_build")

	if [[ x"$PREV_VERSION" != x"$VERSION" ]] ; then
		echo "$ID: Stamp file not set successfully"
		exit 1
	fi

}

failure_report() {
	echo "Subject: $0: $1 has failed"
	echo ""
	echo "$1 has failed"
	echo " --- 8< --- "
	cat $2
	echo " --- >8 --- "
}

SENDMAIL=$(which sendmail)
notify_failures() {
	if [ x"$SENDMAIL" == x"" ];
	then
		echo "No mail client to notify failures..."
		return
	fi

	failure_report "$1" "$2" | sendmail kieran.bingham@ideasonboard.com
	$NOTIFY "$1 has failed"
}

pass_fail() {
	if [ "$1" -ne 0 ]; then
		echo "    $2: *** Failed ***"
		if [ -e $logfile ]; then
			tail -n 100 $logfile;
		fi
		notify_failures "$2" "$logfile"
		exit "$1"
	else
		echo "    $2: Passed"
	fi

	return "$1"
}

fail() {
	pass_fail 1 "$@"
}

pass() {
	pass_fail 0 "$@"
}

completed() {
	echo "$VERSION" > "$last_build"
}

## Define a default logfile name so that the pass_fail can
## work in simple tests
logfile=$(log_filename $ID)