etcdctl bash completions

gistfile1.sh

#!/bin/bash
 
 
__debug()
{
    if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
        echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
    fi
}
 
__index_of_word()
{
    local w word=$1
    shift
    index=0
    for w in "$@"; do
        [[ $w = "$word" ]] && return
        index=$((index+1))
    done
    index=-1
}
 
__contains_word()
{
    local w word=$1; shift
    for w in "$@"; do
        [[ $w = "$word" ]] && return
    done
    return 1
}
 
__handle_reply()
{
    __debug "${FUNCNAME}"
    case $cur in
        -*)
            compopt -o nospace
            local allflags
            if [ ${#must_have_one_flag[@]} -ne 0 ]; then
                allflags=("${must_have_one_flag[@]}")
            else
                allflags=("${flags[*]} ${two_word_flags[*]}")
            fi
            COMPREPLY=( $(compgen -W "${allflags[*]}" -- "$cur") )
            [[ $COMPREPLY == *= ]] || compopt +o nospace
            return 0;
            ;;
    esac
 
    # check if we are handling a flag with special work handling
    local index
    __index_of_word "${prev}" "${flags_with_completion[@]}"
    if [[ ${index} -ge 0 ]]; then
        ${flags_completion[${index}]}
        return
    fi
 
    # we are parsing a flag and don't have a special handler, no completion
    if [[ ${cur} != "${words[cword]}" ]]; then
        return
    fi
 
    local completions
    if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
        completions=("${must_have_one_flag[@]}")
    elif [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
        completions=("${must_have_one_noun[@]}")
    else
        completions=("${commands[@]}")
    fi
    COMPREPLY=( $(compgen -W "${completions[*]}" -- "$cur") )
 
    if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
        declare -F __custom_func >/dev/null && __custom_func
    fi
}
 
# The arguments should be in the form "ext1|ext2|extn"
__handle_filename_extension_flag()
{
    local ext="$1"
    _filedir "@(${ext})"
}
 
__handle_flag()
{
    __debug "${FUNCNAME}: c is $c words[c] is ${words[c]}"
 
    # if a command required a flag, and we found it, unset must_have_one_flag()
    local flagname=${words[c]}
    # if the word contained an =
    if [[ ${words[c]} == *"="* ]]; then
        flagname=${flagname%=*} # strip everything after the =
        flagname="${flagname}=" # but put the = back
    fi
    __debug "${FUNCNAME}: looking for ${flagname}"
    if __contains_word "${flagname}" "${must_have_one_flag[@]}"; then
        must_have_one_flag=()
    fi
 
    # skip the argument to a two word flag
    if __contains_word "${words[c]}" "${two_word_flags[@]}"; then
        c=$((c+1))
        # if we are looking for a flags value, don't show commands
        if [[ $c -eq $cword ]]; then
            commands=()
        fi
    fi
 
    # skip the flag itself
    c=$((c+1))
 
}
 
__handle_noun()
{
    __debug "${FUNCNAME}: c is $c words[c] is ${words[c]}"
 
    if __contains_word "${words[c]}" "${must_have_one_noun[@]}"; then
        must_have_one_noun=()
    fi
 
    nouns+=("${words[c]}")
    c=$((c+1))
}
 
__handle_command()
{
    __debug "${FUNCNAME}: c is $c words[c] is ${words[c]}"
 
    local next_command
    if [[ -n ${last_command} ]]; then
        next_command="_${last_command}_${words[c]}"
    else
        next_command="_${words[c]}"
    fi
    c=$((c+1))
    __debug "${FUNCNAME}: looking for ${next_command}"
    declare -F $next_command >/dev/null && $next_command
}
 
__handle_word()
{
    if [[ $c -ge $cword ]]; then
        __handle_reply
        return
    fi
    __debug "${FUNCNAME}: c is $c words[c] is ${words[c]}"
    if [[ "${words[c]}" == -* ]]; then
        __handle_flag
    elif __contains_word "${words[c]}" "${commands[@]}"; then
        __handle_command
    else
        __handle_noun
    fi
    __handle_word
}
 
__etcdctl_get_path()
{
    compopt +o nospace
    local etcdctl_out
    if etcdctl_out=$(etcdctl ls "${dir}" 2>/dev/null); then
        COMPREPLY=( $( compgen -W "${etcdctl_out[*]}" -- "${cur}" ) )
        echo "dir=${dir} comp=${COMPREPLY[@]}" >> /tmp/debug
        if [[ ${#COMPREPLY[@]} -gt 0 ]]; then
            compopt -o nospace
            return 0
        fi
    fi
    return 1
}
 
__etcdctl_complete_path()
{
    if [[ ${#nouns[@]} -gt 0 ]]; then
        return 1
    fi
    local dir
    dir="${cur}"
    echo -n "one: " >> /tmp/debug
    __etcdctl_get_path && return
    echo -n "two: " >> /tmp/debug
    dir=$(dirname ${cur} 2>/dev/null)
    __etcdctl_get_path && return
}
 
__custom_func() {
    case ${last_command} in
        etcdctl_ls | etcdctl_get | etcdctl_set | etcdctl_rm | etcdctl_rmdir )
            __etcdctl_complete_path
            return
            ;;
        *)
            ;;
    esac
}
 
_etcdctl_backup()
{
    last_command="etcdctl_backup"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--backup-dir=")
    flags+=("--data-dir=")
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_cluster-health()
{
    last_command="etcdctl_cluster-health"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_mk()
{
    last_command="etcdctl_mk"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_mkdir()
{
    last_command="etcdctl_mkdir"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_rm()
{
    last_command="etcdctl_rm"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--dir")
    flags+=("--help")
    flags+=("-h")
    flags+=("--recursive")
    flags+=("--with-index=")
    flags+=("--with-value=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_rmdir()
{
    last_command="etcdctl_rmdir"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_get()
{
    last_command="etcdctl_get"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--sort")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_ls()
{
    last_command="etcdctl_ls"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--p")
    flags+=("--recursive")
    flags+=("--sort")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_set()
{
    last_command="etcdctl_set"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--swap-with-index=")
    flags+=("--swap-with-value=")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_setdir()
{
    last_command="etcdctl_setdir"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_update()
{
    last_command="etcdctl_update"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_updatedir()
{
    last_command="etcdctl_updatedir"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--ttl=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_watch()
{
    last_command="etcdctl_watch"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--after-index=")
    flags+=("--forever")
    flags+=("--help")
    flags+=("-h")
    flags+=("--recursive")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_exec-watch()
{
    last_command="etcdctl_exec-watch"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--after-index=")
    flags+=("--help")
    flags+=("-h")
    flags+=("--recursive")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_member_list()
{
    last_command="etcdctl_member_list"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_member_add()
{
    last_command="etcdctl_member_add"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_member_remove()
{
    last_command="etcdctl_member_remove"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_member()
{
    last_command="etcdctl_member"
    commands=()
    commands+=("list")
    commands+=("add")
    commands+=("remove")
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_import()
{
    last_command="etcdctl_import"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--c=")
    flags+=("--help")
    flags+=("-h")
    flags+=("--snap=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_genbash()
{
    last_command="etcdctl_genbash"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
    flags+=("--outfile=")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl_help()
{
    last_command="etcdctl_help"
    commands=()
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--help")
    flags+=("-h")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
_etcdctl()
{
    last_command="etcdctl"
    commands=()
    commands+=("backup")
    commands+=("cluster-health")
    commands+=("mk")
    commands+=("mkdir")
    commands+=("rm")
    commands+=("rmdir")
    commands+=("get")
    commands+=("ls")
    commands+=("set")
    commands+=("setdir")
    commands+=("update")
    commands+=("updatedir")
    commands+=("watch")
    commands+=("exec-watch")
    commands+=("member")
    commands+=("import")
    commands+=("genbash")
    commands+=("help")
 
    flags=()
    two_word_flags=()
    flags_with_completion=()
    flags_completion=()
 
    flags+=("--ca-file=")
    flags+=("--cert-file=")
    flags+=("--debug")
    flags+=("--help")
    flags+=("-h")
    flags+=("--key-file=")
    flags+=("--no-sync")
    flags+=("--output=")
    two_word_flags+=("-o")
    flags+=("--peers=")
    two_word_flags+=("-C")
 
    must_have_one_flag=()
    must_have_one_noun=()
}
 
__start_etcdctl()
{
    local cur prev words cword
    _init_completion -s || return
 
    local c=0
    local flags=()
    local two_word_flags=()
    local flags_with_completion=()
    local flags_completion=()
    local commands=("etcdctl")
    local must_have_one_flag=()
    local must_have_one_noun=()
    local last_command
    local nouns=()
 
    __handle_word
}
 
complete -F __start_etcdctl etcdctl
# ex: ts=4 sw=4 et filetype=sh