bitbake_layers_completion

#!bash
# Bash completion support for bitbake-layers tool,
# compatible with Bitbake 1.40.0.
#
# Copyright (C) 2018 Lukasz Gardon <lukasz.gardon@gmail.com>
#
# Distributed under the MIT License (MIT)
#

_bitbake_layers()
{
    local cur prev opts_short opts_long subcommands colors
    local opts_long_add_layer opts_short_add_layer opts_long_show_overlayed
    local opts_short_show_overlayed opts_long_show_recipes opts_short_show_recipes
    local opts_long_show_cross_depends opts_short_show_cross_depends
    local opts_long_show_layerindex_fetch opts_short_show_layerindex_fetch
    local opts_long_show_layerindex_show_depends opts_short_show_layerindex_show_depends
    local opts_long_show_create_layer opts_short_show_create_layer bb_class_files classes

    COMPREPLY=()

    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"

    opts_short="-d -q -F -h"

    opts_long="--debug --quiet --force --color --help"

    subcommands="layerindex-fetch layerindex-show-depends add-layer \
	             remove-layer flatten show-layers show-overlayed \
		         show-recipes show-appends show-cross-depends \
		         create-layer"

    colors="auto always never" 

    opts_long_show_overlayed="--help --filenames --same-version"
    opts_short_show_overlayed="-h -f -s"

    opts_long_show_recipes="--help --filenames --multiple --inherits"
    opts_short_show_recipes="-h -f -m -i"

    opts_long_show_layerindex_fetch="--help --show-only --branch --ignore"
    opts_short_show_layerindex_fetch="-h -n -b -i"

    opts_long_add_layer="--help --priority --example-recipe-name --example-recipe-version"
    opts_short_add_layer="-h"

    opts_long_show_cross_depends="--help --filenames --ignore"
    opts_short_show_cross_depends="-h -f -i"

    opts_long_show_layerindex_show_depends="--help --branch"
    opts_short_show_layerindex_show_depends="-h -b"

    opts_long_show_create_layer="--help --priority --example-recipe-name --example-recipe-version"
    opts_short_show_create_layer="-h -p -e -v"

    bb_class_files=".bb_class_files"

    _get_classes() {
        find $BBPATH/../meta*/classes/ -name *.bbclass -exec basename {} \; | sed 's/.bbclass//' > $bb_class_files
    }

    if [[ "${COMP_WORDS[@]}" =~ show-recipes ]] ; then
        if [[ "$prev" == "--inherits" ]] || [[ "$prev" == "-i" ]]; then
            _get_classes
            classes=$(cat $bb_class_files)
            COMPREPLY=( $(compgen -W "${classes}" -- ${cur}) )
            return 0
        fi
    fi

    if [[ "${COMP_WORDS[1]}" =~ show-layers|show-appends|remove-layer|flatten ]]; then
        case "$cur" in
            "--"*)
                COMPREPLY=( $(compgen -W "--help" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "-h" -- ${cur}) )
                return 0
            ;;
        esac
    elif [[ "${COMP_WORDS[1]}" == "add-layer" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_add_layer}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_add_layer}" -- ${cur}) )
                return 0
            ;;
        esac
    elif [[ "${COMP_WORDS[1]}" == "show-overlayed" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_overlayed}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_overlayed}" -- ${cur}) )
                return 0
            ;;
        esac
    elif [[ "${COMP_WORDS[1]}" == "show-recipes" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_recipes}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_recipes}" -- ${cur}) )
                return 0
            ;;
        esac
    elif [[ "${COMP_WORDS[1]}" == "show-cross-depends" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_cross_depends}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_cross_depends}" -- ${cur}) )
                return 0
            ;;
        esac    
    elif [[ "${COMP_WORDS[1]}" == "layerindex-fetch" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_layerindex_fetch}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_layerindex_fetch}" -- ${cur}) )
                return 0
            ;;
        esac    
    elif [[ "${COMP_WORDS[1]}" == "layerindex-show-depends" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_layerindex_show_depends}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_layerindex_show_depends}" -- ${cur}) )
                return 0
            ;;
        esac
    elif [[ "${COMP_WORDS[1]}" == "create-layer" ]]; then
        case "$cur" in
            "--"*|"")
                COMPREPLY=( $(compgen -W "${opts_long_show_create_layer}" -- ${cur}) )
                return 0
            ;;
            "-"*)
                COMPREPLY=( $(compgen -W "${opts_short_show_create_layer}" -- ${cur}) )
                return 0
            ;;
        esac                          
    fi

    case "$prev" in
        "-c"|"--color")
            COMPREPLY=( $(compgen -W "${colors}" -- ${cur}) )
            return 0
        ;;
    esac

    case "$cur" in
        "--"*)
            COMPREPLY=( $(compgen -W "${opts_long}" -- ${cur}) )
            return 0
        ;;
        "-"*)
            COMPREPLY=( $(compgen -W "${opts_short}" -- ${cur}) )
            return 0
        ;;
    esac

    if [[ ${prev} == "bitbake-layers" ]]; then
        COMPREPLY=( $(compgen -W "${subcommands}" -- ${cur}) )
        return 0
    elif [[ ! ${subcommands} =~ [[:space:]]${cur}[[:space:]] ]]; then
        COMPREPLY=( $(compgen -W "${subcommands}" -- ${cur}) )
        return 0
    fi
}
complete -F _bitbake_layers bitbake-layers