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For example, ./build_packages --<tab> will try to complete all supported ./build_packages flags (or print them if completion is non-unique). This completion could be used outside chroot. Review URL: http://codereview.chromium.org/661096
126 lines
2.7 KiB
Bash
126 lines
2.7 KiB
Bash
# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Add programmable completion to some Chromium OS build scripts
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# Echo a list of -- flags that the current command accepts. The
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# function assumes that the command supports shflags' --help flag.
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#
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_flags()
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{
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echo $(command "${COMP_WORDS[0]}" --help 2>&1 | \
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egrep -o -- --\[^\ \]+: | \
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sed 's/://; s/--\[no\]\(.\+\)/--\1 --no\1/')
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}
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# Complete flags, i.e., current words starting with --. Return 1 if
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# the current word doesn't start with --, 0 otherwise.
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#
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_flag_complete()
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{
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COMPREPLY=()
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local cur="${COMP_WORDS[COMP_CWORD]}"
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if [[ "${cur}" == --* ]]; then
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COMPREPLY=( $(compgen -W "$(_flags)" -- ${cur}) )
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return 0
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fi
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return 1
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}
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# Look for "--arg=foo" or "--arg foo" (where foo can be an empty string) in the
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# word to be completed. If found, echo "--arg=foo".
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#
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_argeq()
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{
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local arg=$1
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local w0="${COMP_WORDS[COMP_CWORD]}"
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local w1="${COMP_WORDS[COMP_CWORD-1]}"
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# Check for completing "--arg="
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if [ "${w1}" == ${arg} -a "${w0}" == "=" ]; then
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echo "${w1}${w0}"
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return 0
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fi
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# Check for completing "--arg foo"
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if [ "${w1}" == ${arg} ]; then
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echo "${w1}=${w0}"
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return 0
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fi
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# Check for completing "--arg=foo"
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if [ ${COMP_CWORD} -gt 2 ]; then
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local w2="${COMP_WORDS[COMP_CWORD-2]}"
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if [ "${w2}" == ${arg} -a "${w1}" == "=" ]; then
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echo "${w2}${w1}${w0}"
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return 0
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fi
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fi
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}
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# echo the existing target board sysroots
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#
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_board_sysroots()
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{
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local builddir=/build
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if [ -d ${builddir} ]; then
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echo $(command ls "${builddir}")
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fi
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}
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# Completion for --board= argument for existing board sysroots
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#
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_board_sysroot()
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{
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_flag_complete && return 0
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COMPREPLY=()
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local arg=$(_argeq --board)
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if [[ ${arg} == --board=* ]]; then
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COMPREPLY=( $(compgen -W "$(_board_sysroots)" -- ${arg#--board=}) )
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fi
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}
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complete -o bashdefault -o default -F _board_sysroot \
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build_autotest.sh \
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build_image \
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build_packages \
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image_to_usb.sh \
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mod_image_for_test.sh
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# echo the existing target board overlays
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#
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_board_overlays()
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{
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local overlaydir=../overlays
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if [ -d ${overlaydir} ]; then
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echo $(command ls $overlaydir | grep overlay- | sed s,overlay-,,)
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fi
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}
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# Completion for --board= argument for existing board overlays
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#
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_board_overlay()
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{
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_flag_complete && return 0
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COMPREPLY=()
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local arg=$(_argeq --board)
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if [[ ${arg} == --board=* ]]; then
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COMPREPLY=( $(compgen -W "$(_board_overlays)" -- ${arg#--board=}) )
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fi
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}
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complete -o bashdefault -o default -F _board_overlay setup_board
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### Local Variables:
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### mode: shell-script
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### End:
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