66 lines
2.2 KiB
Bash
66 lines
2.2 KiB
Bash
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# Please add "source /path/to/bash-autocomplete.sh" to your .bashrc to use this.
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_clang_filedir()
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{
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# _filedir function provided by recent versions of bash-completion package is
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# better than "compgen -f" because the former honors spaces in pathnames while
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# the latter doesn't. So we use compgen only when _filedir is not provided.
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_filedir 2> /dev/null || COMPREPLY=( $( compgen -f ) )
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}
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_clang()
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{
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local cur prev words cword arg flags w1 w2
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# If latest bash-completion is not supported just initialize COMPREPLY and
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# initialize variables by setting manually.
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_init_completion -n 2> /dev/null
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if [[ "$?" != 0 ]]; then
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COMPREPLY=()
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cword=$COMP_CWORD
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cur="${COMP_WORDS[$cword]}"
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fi
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w1="${COMP_WORDS[$cword - 1]}"
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if [[ $cword > 1 ]]; then
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w2="${COMP_WORDS[$cword - 2]}"
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fi
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# Pass all the current command-line flags to clang, so that clang can handle
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# these internally.
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# '=' is separated differently by bash, so we have to concat them without ','
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for i in `seq 1 $cword`; do
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if [[ $i == $cword || "${COMP_WORDS[$(($i+1))]}" == '=' ]]; then
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arg="$arg${COMP_WORDS[$i]}"
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else
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arg="$arg${COMP_WORDS[$i]},"
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fi
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done
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# expand ~ to $HOME
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eval local path=${COMP_WORDS[0]}
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# Use $'\t' so that bash expands the \t for older versions of sed.
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flags=$( "$path" --autocomplete="$arg" 2>/dev/null | sed -e $'s/\t.*//' )
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# If clang is old that it does not support --autocomplete,
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# fall back to the filename completion.
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if [[ "$?" != 0 ]]; then
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_clang_filedir
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return
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fi
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# When clang does not emit any possible autocompletion, or user pushed tab after " ",
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# just autocomplete files.
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if [[ "$flags" == "$(echo -e '\n')" ]]; then
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# If -foo=<tab> and there was no possible values, autocomplete files.
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[[ "$cur" == '=' || "$cur" == -*= ]] && cur=""
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_clang_filedir
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elif [[ "$cur" == '=' ]]; then
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COMPREPLY=( $( compgen -W "$flags" -- "") )
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else
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# Bash automatically appends a space after '=' by default.
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# Disable it so that it works nicely for options in the form of -foo=bar.
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[[ "${flags: -1}" == '=' ]] && compopt -o nospace 2> /dev/null
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COMPREPLY=( $( compgen -W "$flags" -- "$cur" ) )
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fi
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}
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complete -F _clang clang
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