304 lines
8.6 KiB
Bash
304 lines
8.6 KiB
Bash
# bash completion for completion -*- shell-script -*-
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__completion_debug()
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{
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if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
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echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
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fi
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}
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# Homebrew on Macs have version 1.3 of bash-completion which doesn't include
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# _init_completion. This is a very minimal version of that function.
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__completion_init_completion()
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{
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COMPREPLY=()
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_get_comp_words_by_ref "$@" cur prev words cword
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}
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__completion_index_of_word()
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{
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local w word=$1
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shift
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index=0
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for w in "$@"; do
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[[ $w = "$word" ]] && return
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index=$((index+1))
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done
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index=-1
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}
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__completion_contains_word()
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{
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local w word=$1; shift
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for w in "$@"; do
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[[ $w = "$word" ]] && return
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done
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return 1
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}
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__completion_handle_reply()
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{
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__completion_debug "${FUNCNAME[0]}"
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case $cur in
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-*)
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if [[ $(type -t compopt) = "builtin" ]]; then
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compopt -o nospace
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fi
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local allflags
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if [ ${#must_have_one_flag[@]} -ne 0 ]; then
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allflags=("${must_have_one_flag[@]}")
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else
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allflags=("${flags[*]} ${two_word_flags[*]}")
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fi
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COMPREPLY=( $(compgen -W "${allflags[*]}" -- "$cur") )
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if [[ $(type -t compopt) = "builtin" ]]; then
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[[ "${COMPREPLY[0]}" == *= ]] || compopt +o nospace
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fi
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# complete after --flag=abc
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if [[ $cur == *=* ]]; then
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if [[ $(type -t compopt) = "builtin" ]]; then
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compopt +o nospace
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fi
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local index flag
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flag="${cur%=*}"
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__completion_index_of_word "${flag}" "${flags_with_completion[@]}"
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COMPREPLY=()
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if [[ ${index} -ge 0 ]]; then
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PREFIX=""
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cur="${cur#*=}"
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${flags_completion[${index}]}
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if [ -n "${ZSH_VERSION}" ]; then
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# zsh completion needs --flag= prefix
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eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
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fi
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fi
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fi
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return 0;
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;;
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esac
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# check if we are handling a flag with special work handling
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local index
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__completion_index_of_word "${prev}" "${flags_with_completion[@]}"
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if [[ ${index} -ge 0 ]]; then
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${flags_completion[${index}]}
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return
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fi
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# we are parsing a flag and don't have a special handler, no completion
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if [[ ${cur} != "${words[cword]}" ]]; then
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return
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fi
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local completions
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completions=("${commands[@]}")
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if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
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completions=("${must_have_one_noun[@]}")
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fi
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if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
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completions+=("${must_have_one_flag[@]}")
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fi
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COMPREPLY=( $(compgen -W "${completions[*]}" -- "$cur") )
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if [[ ${#COMPREPLY[@]} -eq 0 && ${#noun_aliases[@]} -gt 0 && ${#must_have_one_noun[@]} -ne 0 ]]; then
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COMPREPLY=( $(compgen -W "${noun_aliases[*]}" -- "$cur") )
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fi
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if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
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declare -F __custom_func >/dev/null && __custom_func
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fi
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# available in bash-completion >= 2, not always present on macOS
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if declare -F __ltrim_colon_completions >/dev/null; then
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__ltrim_colon_completions "$cur"
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fi
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# If there is only 1 completion and it is a flag with an = it will be completed
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# but we don't want a space after the =
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if [[ "${#COMPREPLY[@]}" -eq "1" ]] && [[ $(type -t compopt) = "builtin" ]] && [[ "${COMPREPLY[0]}" == --*= ]]; then
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compopt -o nospace
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fi
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}
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# The arguments should be in the form "ext1|ext2|extn"
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__completion_handle_filename_extension_flag()
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{
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local ext="$1"
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_filedir "@(${ext})"
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}
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__completion_handle_subdirs_in_dir_flag()
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{
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local dir="$1"
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pushd "${dir}" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1
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}
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__completion_handle_flag()
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{
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__completion_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
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# if a command required a flag, and we found it, unset must_have_one_flag()
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local flagname=${words[c]}
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local flagvalue
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# if the word contained an =
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if [[ ${words[c]} == *"="* ]]; then
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flagvalue=${flagname#*=} # take in as flagvalue after the =
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flagname=${flagname%=*} # strip everything after the =
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flagname="${flagname}=" # but put the = back
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fi
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__completion_debug "${FUNCNAME[0]}: looking for ${flagname}"
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if __completion_contains_word "${flagname}" "${must_have_one_flag[@]}"; then
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must_have_one_flag=()
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fi
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# if you set a flag which only applies to this command, don't show subcommands
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if __completion_contains_word "${flagname}" "${local_nonpersistent_flags[@]}"; then
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commands=()
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fi
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# keep flag value with flagname as flaghash
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# flaghash variable is an associative array which is only supported in bash > 3.
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if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
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if [ -n "${flagvalue}" ] ; then
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flaghash[${flagname}]=${flagvalue}
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elif [ -n "${words[ $((c+1)) ]}" ] ; then
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flaghash[${flagname}]=${words[ $((c+1)) ]}
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else
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flaghash[${flagname}]="true" # pad "true" for bool flag
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fi
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fi
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# skip the argument to a two word flag
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if __completion_contains_word "${words[c]}" "${two_word_flags[@]}"; then
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c=$((c+1))
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# if we are looking for a flags value, don't show commands
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if [[ $c -eq $cword ]]; then
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commands=()
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fi
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fi
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c=$((c+1))
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}
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__completion_handle_noun()
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{
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__completion_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
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if __completion_contains_word "${words[c]}" "${must_have_one_noun[@]}"; then
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must_have_one_noun=()
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elif __completion_contains_word "${words[c]}" "${noun_aliases[@]}"; then
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must_have_one_noun=()
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fi
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nouns+=("${words[c]}")
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c=$((c+1))
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}
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__completion_handle_command()
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{
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__completion_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
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local next_command
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if [[ -n ${last_command} ]]; then
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next_command="_${last_command}_${words[c]//:/__}"
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else
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if [[ $c -eq 0 ]]; then
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next_command="_completion_root_command"
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else
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next_command="_${words[c]//:/__}"
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fi
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fi
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c=$((c+1))
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__completion_debug "${FUNCNAME[0]}: looking for ${next_command}"
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declare -F "$next_command" >/dev/null && $next_command
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}
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__completion_handle_word()
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{
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if [[ $c -ge $cword ]]; then
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__completion_handle_reply
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return
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fi
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__completion_debug "${FUNCNAME[0]}: c is $c words[c] is ${words[c]}"
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if [[ "${words[c]}" == -* ]]; then
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__completion_handle_flag
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elif __completion_contains_word "${words[c]}" "${commands[@]}"; then
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__completion_handle_command
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elif [[ $c -eq 0 ]]; then
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__completion_handle_command
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elif __completion_contains_word "${words[c]}" "${command_aliases[@]}"; then
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# aliashash variable is an associative array which is only supported in bash > 3.
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if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
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words[c]=${aliashash[${words[c]}]}
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__completion_handle_command
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else
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__completion_handle_noun
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fi
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else
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__completion_handle_noun
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fi
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__completion_handle_word
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}
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_completion_root_command()
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{
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last_command="completion"
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command_aliases=()
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commands=()
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flags=()
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two_word_flags=()
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local_nonpersistent_flags=()
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flags_with_completion=()
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flags_completion=()
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flags+=("--help")
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flags+=("-h")
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local_nonpersistent_flags+=("--help")
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must_have_one_flag=()
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must_have_one_noun=()
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must_have_one_noun+=("bash")
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must_have_one_noun+=("zsh")
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noun_aliases=()
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}
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__start_completion()
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{
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local cur prev words cword
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declare -A flaghash 2>/dev/null || :
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declare -A aliashash 2>/dev/null || :
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if declare -F _init_completion >/dev/null 2>&1; then
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_init_completion -s || return
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else
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__completion_init_completion -n "=" || return
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fi
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local c=0
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local flags=()
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local two_word_flags=()
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local local_nonpersistent_flags=()
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local flags_with_completion=()
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local flags_completion=()
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local commands=("completion")
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local must_have_one_flag=()
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local must_have_one_noun=()
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local last_command
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local nouns=()
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__completion_handle_word
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}
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if [[ $(type -t compopt) = "builtin" ]]; then
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complete -o default -F __start_completion completion
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else
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complete -o default -o nospace -F __start_completion completion
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fi
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# ex: ts=4 sw=4 et filetype=sh
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