nuttx/tools/configure_completion.bash

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#!/usr/bin/env bash
# tools/configure_completion.bash
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership. The
# ASF licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the
# License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
#
function _nuttx_configure_completion
{
local colon_idx=2
local num_options=0
# Skip ./tools/configure.sh script options.
while [[ "${#COMP_WORDS[@]}" != "${colon_idx}" ]] && [[ "${COMP_WORDS[$((colon_idx - 1))]}" == '-'* ]]
do
# If "-a" is among the provided arguments, consider the apps directory.
if [ "${COMP_WORDS[$((colon_idx - 1))]}" == "-a" ]; then
colon_idx=$((colon_idx + 2))
num_options=$((num_options + 2))
else
colon_idx=$((colon_idx + 1))
num_options=$((num_options + 1))
fi
done
# When the command line is complete, COMP_WORDS array will have 5 elements
# plus the options.
# The script may return when this state is reached.
if [ "${#COMP_WORDS[@]}" == $((5 + num_options)) ]; then
return
fi
# If the last provided argument is "-a", do not execute autocompletion
# algorithm.
if [ "${COMP_WORDS[-2]}" == "-a" ]; then
return
fi
local search_dir=""
local search_pattern=""
local reply_suffix=""
if [ "${COMP_WORDS[${colon_idx}]}" == ':' ]; then
local board_name=${COMP_WORDS[$((colon_idx - 1))]}
local config_name=${COMP_WORDS[$((colon_idx + 1))]}
search_dir="boards/*/*/${board_name}/configs/"
search_pattern="${config_name}"
reply_suffix=" "
else
search_dir="boards/*/*/"
search_pattern="${COMP_WORDS[$((1 + num_options))]}"
reply_suffix=":"
fi
local wordlist
local suggestions
wordlist=$(find ${search_dir} -maxdepth 1 -mindepth 1 -type d -exec basename {} \;) 2>/dev/null
suggestions=($(compgen -W "${wordlist}" -- "${search_pattern}"))
if [ "${#suggestions[@]}" == "1" ]; then
# If there's only one match, complete with the appropriate reply suffix.
COMPREPLY=("${suggestions[0]}${reply_suffix}")
else
# More than one suggestion resolved, respond with the suggestions intact.
COMPREPLY=("${suggestions[@]}")
fi
}
complete -o bashdefault -o default -o nospace -F _nuttx_configure_completion ./tools/configure.sh