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# -*- mode: redo -*-
# Helper functions
target=$1 basename=$2 dest=$3

# Make all targets dependent on the library and the config file
redo-ifchange "$SRC_ROOT/lib.rc" "$SRC_ROOT/config.rc"

setv() {
    # Set variables if unset. Works similar to the Makefile syntax.
    [ "$3" ] || {
        printf '%s\n' "Faulty variable syntax" >&2
        exit 1
    }
    var=$1; sym=$2; shift 2
    case "$sym" in
        \?=|=) eval "[ \"\$$var\" ]" || export "$var=$*" ;;
        +=)    eval "export \"$var=\$$var $*\""
    esac
}

redo_clean() {
    # Clean function for various redo implementations
    [ -r .do_built ] && {
        while read -r file; do
            [ -d "$file" ] || rm -f "$file"
        done < .do_built
    }
    find . -type f \( -name '*.tmp' -o -name '*.did' -o -name '.dep*' -o -name '.target*' \) \
         -exec rm -f -- {} +
    [ "$DO_BUILT" ]  || find . -name '.do_built*' -exec rm -rf -- {} +
    [ "$REDO_BASE" ] || find . -name .redo -type d -exec rm -rf -- {} +
}

targcheck() {
    # Usage: targcheck [target...]
    #
    # Check if current target is one of the given arguments of this function.
    # Returns 0 if target is one of the arguments, returns 1 if not.
    case " $* " in *" $target "*) return 0; esac; return 1
}

PHONY() {
    # Usage: PHONY [[target...]]
    #
    # Function that resembles the .PHONY: target on the classic 'make' system.
    # You can either use it without an argument on a single target, or specify
    # multiple targets.
    if [ -z "$1" ] || targcheck "$@"; then
        # shellcheck disable=2064
        trap "rm -f $dest" EXIT INT
    fi
}

getbin() {
    # Function to get all executables
    find src contrib \( -name cpt -o -name 'cpt-*' \) ! -name '*.in' ! -name '*.did'
}

# Phony targets
PHONY all dist clean install uninstall test