issue with bash arrays containing both commands and paths

Question

I'm trying to write a script to tailor my dotfile setup to each machine using git update-index -skip-worktree but it keeps chopping up the paths. I'm passing arrays starting with commands where every other value in the array is a file or directory path being tracked by git. here is a snippet of the code

fish=("fish" "$XDG_CONFIG_HOME/fish")
gtk=("gtk-launch" "$XDG_CONFIG_HOME/gtk-3.0")
i3=("i3-config-wizard" "$XDG_CONFIG_HOME/i3")

check_install() {
    for var in "$@"
    do
        echo ${var[0]}
        if ! [ -x "$(command -v ${var[0]})" ]; then
            for path in "${var[@]:1}"
            do
                echo locally untracking $path
                git update-index --skip-worktree "$path"
                rm -r "$path"
            done
        fi
    done
}
check_install $fish 
check_install $gtk 
check_install ${i3[@]}

the output for these entries

locally untracking ish
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
rm: cannot remove 'ish': No such file or directory
gtk-launch
i3-config-wizard
locally untracking 3-config-wizard
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
rm: cannot remove '3-config-wizard': No such file or directory
/i3
locally untracking i3
fatal: not a git repository (or any parent up to mount point /)
Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
rm: cannot remove 'i3': No such file or directory
urxvt

I'm relatively new to functions in bash so I imagine the function isn't doing exactly what I expect. also if you guys have a better idea about how to go about this, feel free to mention it.

Answer 1

part of the issue was the outer for loop was storing each item as a separate variable, which the inner for loop then was removing the first character. the corrected function is this:

check_install() {

        echo "${@: -1}"
        if ! [ -x "$(command -v $1)" ]; then
            for path in "${@: -1}"
            do
                echo locally untracking $path
                git update-index --skip-worktree "$path"
                rm -r "$path"
            done
        fi

}

the array variables were also being referenced incorrectly, as it was only passing the first element. the correct way as mentioned by @steeldriver is "${kak[@]}"