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- #!/bin/bash
- # Copyright 2012 the V8 project authors. All rights reserved.
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # * Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # * Redistributions in binary form must reproduce the above
- # copyright notice, this list of conditions and the following
- # disclaimer in the documentation and/or other materials provided
- # with the distribution.
- # * Neither the name of Google Inc. nor the names of its
- # contributors may be used to endorse or promote products derived
- # from this software without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- # Inspired by and based on:
- # https://chromium.googlesource.com/chromium/src/+/master/tools/bash-completion
- # Flag completion rule for bash.
- # To load in your shell, "source path/to/this/file".
- v8_source="$(realpath "$(dirname "$BASH_SOURCE")"/..)"
- _get_v8_flags() {
- # The first `sed` command joins lines when a line ends with '('.
- # See http://sed.sourceforge.net/sedfaq3.html#s3.2
- local flags_file="$v8_source/src/flags/flag-definitions.h"
- local defines=$( \
- sed -e :a -e '/($/N; s/(\n\s*/(/; ta' < "$flags_file" \
- | grep "^DEFINE" \
- | grep -v "DEFINE_IMPLICATION" \
- | grep -v "DEFINE_NEG_IMPLICATION" \
- | grep -v "DEFINE_VALUE_IMPLICATION" \
- | sed -e 's/_/-/g'; \
- grep "^ V(harmony_" "$flags_file" \
- | sed -e 's/^ V/DEFINE-BOOL/' \
- | sed -e 's/_/-/g'; \
- grep "^ V(" "$v8_source/src/wasm/wasm-feature-flags.h" \
- | sed -e 's/^ V(/DEFINE-BOOL(experimental-wasm-/' \
- | sed -e 's/_/-/g')
- sed -ne 's/^DEFINE-[^(]*(\([^,]*\).*/--\1/p' <<< "$defines"
- sed -ne 's/^DEFINE-BOOL(\([^,]*\).*/--no\1/p' <<< "$defines"
- }
- _get_d8_flags() {
- grep "strcmp(argv\[i\]" "$v8_source/src/d8/d8.cc" \
- | sed -ne 's/^[^"]*"--\([^"]*\)".*/--\1/p'
- }
- _d8_flag() {
- local targets
- targets=$(_get_v8_flags ; _get_d8_flags)
- COMPREPLY=($(compgen -W "$targets" -- "${COMP_WORDS[COMP_CWORD]}"))
- return 0
- }
- _test_flag() {
- local targets
- targets=$(_get_v8_flags)
- COMPREPLY=($(compgen -W "$targets" -- "${COMP_WORDS[COMP_CWORD]}"))
- return 0
- }
- complete -F _d8_flag -f d8 v8 v8-debug
- complete -F _test_flag -f cctest unittests
- # Many distros set up their own GDB completion scripts. The logic below is
- # careful to wrap any such functions (with additional logic), rather than
- # overwriting them.
- # An additional complication is that tested distros dynamically load their
- # completion scripts on first use. So in order to be able to detect their
- # presence, we have to force-load them first.
- _maybe_setup_gdb_completions() {
- # We only want to set up the wrapping once:
- [[ -n "$_ORIGINAL_GDB_COMPLETIONS" ]] && return 0;
- # This path works for Debian, Ubuntu, and Gentoo; other distros unknown.
- # Feel free to submit patches to extend the logic.
- local GDB_COMP
- for GDB_COMP in "/usr/share/bash-completion/completions/gdb"; do
- [[ -f "$GDB_COMP" ]] && source $GDB_COMP
- done
- _ORIGINAL_GDB_COMPLETIONS="$(complete -p gdb 2>/dev/null \
- | sed -e 's/^.*-F \([^ ]*\).*/\1/')"
- _gdb_v8_flag() {
- local c i next
- for (( i=1; i<$(($COMP_CWORD-1)); i++ )); do
- c=${COMP_WORDS[$i]}
- if [ "$c" = "-args" ] || [ "$c" = "--args" ] || [ "$c" == "--" ]; then
- next=$(basename -- ${COMP_WORDS[$(($i+1))]})
- if [ "$next" = "d8" ] ; then
- _d8_flag
- return 0
- elif [ "$next" = "unittests" ] || [ "$next" = "cctest" ]; then
- _test_flag
- return 0
- fi
- fi
- done
- [[ -n "$_ORIGINAL_GDB_COMPLETIONS" ]] && $_ORIGINAL_GDB_COMPLETIONS
- return 0
- }
- complete -F _gdb_v8_flag -f gdb
- }
- _maybe_setup_gdb_completions
- unset _maybe_setup_gdb_completions
- _get_gm_flags() {
- "$v8_source/tools/dev/gm.py" --print-completions
- # cctest ignore directory structure, it's always "cctest/filename".
- find "$v8_source/test/cctest/" -type f -name 'test-*' | \
- xargs basename -a -s ".cc" | \
- while read -r item; do echo "cctest/$item/*"; done
- }
- _gm_flag() {
- local targets=$(_get_gm_flags)
- COMPREPLY=($(compgen -W "$targets" -- "${COMP_WORDS[COMP_CWORD]}"))
- return 0
- }
- # gm might be an alias, based on https://v8.dev/docs/build-gn#gm.
- complete -F _gm_flag gm.py gm
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