bash completion script that susbtitute to another command

Asked Apr 12 '20 at 18:59

Active Apr 12 '20 at 18:59

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I want to make a "completion script" that substitutes a virtual command (g) to another command (cd).

I want g dl<Tab> to dynamically transform into cd ~/dl/.

An alias is not what I want, because I want to continue typing. The g's argument is retrieved using a key/value store

I tried to assign values to the $COMP_WORDS array to change user written text, but it doesn't works :

_g_completions() {
    local FILE="$HOME/.config/kv.awk/bookmarks.txt"
    local COMPLEN="${#COMP_WORDS[@]}"
    if [ "${COMP_WORDS[$COMP_CWORD]}" -lt 3 ]
    then
        # list keys
        COMPREPLY=($(compgen -W "$(awk '/^[A-Za-z]/ {print tolower($1)}' "$FILE")" -- "$CURRENT"))
    else
        # subsitute command
        COMP_WORDS[0]="cd"
        COMP_WORDS[1]="$(kv.awk bookmarks get "${COMP_WORDS[1]}")"
    fi
}

complete -F _g_completions g

asked Apr 12 '20 at 18:59

ppom

Doesn't seem possible. Why would word completion work on the whole command line anyways? – oguz ismail Apr 12 '20 at 19:50
It could correct mistakes, for example. Or provide a dynamic alias, as I'm trying to do. – ppom Apr 12 '20 at 23:12
Both are beyond the definition of *completion* – oguz ismail Apr 13 '20 at 03:50

bash completion script that susbtitute to another command

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