lkhh-kernel-list

#! /bin/bash

_rootdir=${_rootdir:-"$(dirname "$(readlink -f "$0")")"}
_ver="0.0.1-dev"
#_author="Wei Peng <me@1pengw.com>"

source "${_rootdir}/_shared_prologue"

#
# parameters
#
declare -i all=${all:-0}
declare foreach=${foreach:-}

#
# getopt processing
#
function my_getopt_cont () {
    local n_shift=1 # number of shifts in the outer loop; shift by 1 by default
    case "$1" in
        -a|--all)
            all=1
            n_shift=1
            ;;
        -f|--foreach)
            shift
            foreach=$1
            n_shift=2
            ;;
    esac
    return $n_shift
}

my_getopt "af:" "all,foreach:" "my_getopt_cont" "List state of build/target instances." "$(
cat <<END
[-a|--all] [-f|--foreach=<foreach>]
END
)" "$(
cat <<END
-a	--all		List all initialized instances, not only non-empty ones (default: $all).
-f	--foreach		A snippet of shell script to be eval'd, which takes each build path from stdin (default: $foreach).
END
)" "$@"
ret=$?
eval set -- "$_getopt"
shift $ret 

# sanity check
vecho 0 <<END
$(
dumpparam <<END1
$(
for name in all foreach; do
    echo "$name=$(echo $(eval "echo \$$name"))"
done
)
END1
)
END

build_root="$(readlink -f "$LKHH_ARENA/build")"

[[ -d "$build_root" ]] || die 1 <<END
ERROR: $build_root does not exist; consider "lkhh-init" first.
END

vecho 0 <<END
$build_root
END

ls -d "$build_root"/* | sort -V | while IFS= read -r line; do
    n=${line##$build_root/}
    output_p=0
    output="$n:"
    if [[ -f "$line/.config" ]]; then
        output+="\tconfigured"; (( output_p++ ));
        krel=$(cat "$line/include/config/kernel.release" 2> /dev/null)
        if [[ -n "$krel" ]]; then
            output+="($krel)"
        fi
    fi
    if [[ -h "$line/source" ]]; then output+="\tsource@($(readlink -f "$line/source"))"; (( output_p++ )); fi
    if [[ -f "$line/vmlinux" ]]; then
        output+="\tbuilt";
        if [[ -f "$line/.config" ]]; then
            if [[ "$line/vmlinux" -nt "$line/.config" ]]; then
                output+="(vmlinux is up to date with .config)"
            elif [[ "$line/vmlinux" -ot "$line/.config" ]]; then
                output+="(vmlinux is older than .config)"
            fi
        fi
    fi
    output+="\n"

    if (( output_p > 0 )) || (( all > 0 )); then
        printf "$output"
    fi

    if [[ -n "$foreach" ]]; then
        eval "echo '$line' | $foreach"
    fi
done