| 1 | # Please add "source /path/to/bash-autocomplete.sh" to your .bashrc to use this. |
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| 2 | |
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| 3 | _clang_filedir() |
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| 4 | { |
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| 5 | # _filedir function provided by recent versions of bash-completion package is |
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| 6 | # better than "compgen -f" because the former honors spaces in pathnames while |
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| 7 | # the latter doesn't. So we use compgen only when _filedir is not provided. |
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| 8 | _filedir 2> /dev/null || COMPREPLY=( $( compgen -f ) ) |
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| 9 | } |
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| 10 | |
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| 11 | _clang() |
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| 12 | { |
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| 13 | local cur prev words cword arg flags w1 w2 |
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| 14 | # If latest bash-completion is not supported just initialize COMPREPLY and |
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| 15 | # initialize variables by setting manually. |
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| 16 | _init_completion -n 2> /dev/null |
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| 17 | if [[ "$?" != 0 ]]; then |
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| 18 | COMPREPLY=() |
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| 19 | cword=$COMP_CWORD |
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| 20 | cur="${COMP_WORDS[$cword]}" |
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| 21 | fi |
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| 22 | |
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| 23 | w1="${COMP_WORDS[$cword - 1]}" |
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| 24 | if [[ $cword > 1 ]]; then |
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| 25 | w2="${COMP_WORDS[$cword - 2]}" |
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| 26 | fi |
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| 27 | |
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| 28 | # Pass all the current command-line flags to clang, so that clang can handle |
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| 29 | # these internally. |
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| 30 | # '=' is separated differently by bash, so we have to concat them without ',' |
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| 31 | for i in `seq 1 $cword`; do |
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| 32 | if [[ $i == $cword || "${COMP_WORDS[$(($i+1))]}" == '=' ]]; then |
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| 33 | arg="$arg${COMP_WORDS[$i]}" |
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| 34 | else |
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| 35 | arg="$arg${COMP_WORDS[$i]}," |
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| 36 | fi |
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| 37 | done |
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| 38 | |
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| 39 | # expand ~ to $HOME |
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| 40 | eval local path=${COMP_WORDS[0]} |
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| 41 | # Use $'\t' so that bash expands the \t for older versions of sed. |
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| 42 | flags=$( "$path" --autocomplete="$arg" 2>/dev/null | sed -e $'s/\t.*//' ) |
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| 43 | # If clang is old that it does not support --autocomplete, |
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| 44 | # fall back to the filename completion. |
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| 45 | if [[ "$?" != 0 ]]; then |
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| 46 | _clang_filedir |
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| 47 | return |
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| 48 | fi |
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| 49 | |
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| 50 | # When clang does not emit any possible autocompletion, or user pushed tab after " ", |
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| 51 | # just autocomplete files. |
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| 52 | if [[ "$flags" == "$(echo -e '\n')" ]]; then |
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| 53 | # If -foo=<tab> and there was no possible values, autocomplete files. |
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| 54 | [[ "$cur" == '=' || "$cur" == -*= ]] && cur="" |
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| 55 | _clang_filedir |
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| 56 | elif [[ "$cur" == '=' ]]; then |
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| 57 | COMPREPLY=( $( compgen -W "$flags" -- "") ) |
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| 58 | else |
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| 59 | # Bash automatically appends a space after '=' by default. |
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| 60 | # Disable it so that it works nicely for options in the form of -foo=bar. |
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| 61 | [[ "${flags: -1}" == '=' ]] && compopt -o nospace 2> /dev/null |
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| 62 | COMPREPLY=( $( compgen -W "$flags" -- "$cur" ) ) |
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| 63 | fi |
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| 64 | } |
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| 65 | complete -F _clang clang |
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| 66 | |
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