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#!/bin/bash
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Project configuration variables
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
VERSION_FILE="include/tinyalsa/version.h"
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Scripts internal variables
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
LF="\n"
PARAMS=""
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Helper functions
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
die()
{
echo "Error: $@" 1>&2
exit 1
}
print_usage()
{
echo "Usage: $0 [OPTIONS] ACTION"
echo
echo "Available options:"
echo " -s,--script Format output in \"script\" mode (no trailing newline)."
echo
echo "Available actions:"
echo " print [minor|major|patch] Print the current version."
echo
echo "Please run this script from the project root folder."
}
# Gets a part of the version from the project version file (version.h).
# Takes one argument: the matching version identifier in the version file.
get_version_part()
{
local V=$(grep -m 1 "^#define\([ \t]*\)${1}" ${VERSION_FILE} | sed 's/[^0-9]*//g')
[ ! -z ${V} ] || die "Could not get ${1} from ${VERSION_FILE}"
echo ${V}
}
# Gets the complete version from the version file.
get_version()
{
[ -f ${VERSION_FILE} ] || die "No ${VERSION_FILE} found! Is this the project root?";
VERSION_MAJOR=$(get_version_part "TINYALSA_VERSION_MAJOR")
VERSION_MINOR=$(get_version_part "TINYALSA_VERSION_MINOR")
VERSION_PATCH=$(get_version_part "TINYALSA_VERSION_PATCH")
}
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Actions implementations / functions
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
print_version()
{
get_version
if [ -z $1 ]; then
printf "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}${LF}"
else
case "$1" in
major)
printf "${VERSION_MAJOR}${LF}"
;;
minor)
printf "${VERSION_MINOR}${LF}"
;;
patch)
printf "${VERSION_PATCH}${LF}"
;;
*)
die "Unknown part \"$1\" (must be one of minor, major and patch)."
;;
esac
fi
return 0
}
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Command Line parsing
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
parse_command()
{
if [ "$#" -eq "0" ]; then
print_usage
exit 1
fi
case "$1" in
print)
print_version "$2"
exit $?
;;
*)
die "Unsupported action \"$1\"."
;;
esac
}
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
#
# Main
#
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
set -e
trap "set +e" 0
# Checking parameters
if [ "$#" -eq "0" ]; then
print_usage
exit 0
fi
while [ "$#" -ne "0" ]; do
case "$1" in
-s|--script)
unset LF
shift
;;
--)
shift
break
;;
-*|--*=)
die "Unsupported flag \"$1\"."
;;
*)
PARAMS="$PARAMS ${1}"
shift
;;
esac
done
# set positional arguments in their proper place
set -- "${PARAMS}"
parse_command ${PARAMS}
# The script should never reach this place.
die "Internal error. Please report this."
|
