utils/android

#!/bin/bash -x
# Utilities to interact with android more easily

make_csv() {
	out=""
	in=$1
	for p in $in; do
		if [ "x$out" == "x" ]; then
			out=$p
		else
			out="$out,$p"
		fi
	done
	echo $out
}

make_spaces() {
	out=""
	in=$1
	for p in $in; do
		if [ "x$out" == "x" ]; then
			out=$p
		else
			out="$out $p"
		fi
	done
	echo $out
}

cmd_exists() {
	which $1 > /dev/null
	return $?
}

do_adb_root() {
	ADB="$1"
	$ADB root > /dev/null 2>&1
	return $?
}

die() {
	exit_code=$1
	msg=$2
	echo "ERROR: $msg"
	exit $exit_code
}

die_if_no_androdeb() {
	set +e
	$ADB shell ls /data/androdeb/debian > /dev/null 2>&1
	if [ $? -ne 0 ]; then die 8 "Existing androdeb env not found on device. $1"; fi
	set -e
}

#  Helper function to count number of source arguments in a list
#  when more than one argument is supplied, it is assumed the last argument
#  is a destination
count_sources() {
	local source_count=$#
	if [ $source_count -gt 1 ]; then
		source_count=$((source_count - 1))
	fi
	echo "$source_count"
}