json-glib-format

#!/hint/bash -efu

#
# Bash programmable completion rules for json-glib-format(1)
#

# Copyright (C) 2019 Denis Ollier
#
# This script is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

_json_glib_format()
{
    local cur prev words cword
    _init_completion || return  # requires bash-completion >= 1.90 (2011-11-03)

    #
    # Get full completion context
    #
    local indent prettify

    local i length
    length=${#words[@]}
    # Skip the last word if it is the one being completed
    ((cword == length - 1)) && [ "${cur}" ] && ((length--))

    for ((i = 0; i < length; i++)); do
        case ${words[i]} in
            '-h'|'--help') return;;  # No completion for -h/--help

            '-i'|'--indent-spaces') indent=1;;
            '-p'|'--prettify')      prettify=1;;
        esac
    done

    #
    # Generate smart completions
    #
    case ${prev} in
        '-i'|'--indent-spaces')
            COMPREPLY=($(compgen -W "{0..5} '...'" -- "${cur}"))
            return
        ;;
    esac

    # Fallback to suggesting possible completions
    local suggests

    ((${#words[@]} == 2)) && suggests+=('-h' '--help')
    ((!indent)) && suggests+=('-i' '--indent-spaces')
    ((!prettify)) && suggests+=('-p' '--prettify')

    COMPREPLY=($(compgen -W '"${suggests[@]}"' -- "${cur}"))

    COMPREPLY+=($(compgen -f -- "${cur}"))
}

complete -o nosort -F _json_glib_format json-glib-format

# vi: set ft=sh et sw=4 ts=4: