particle-os-modules/modules/brew/brew-bash-completions.sh

#!/bin/sh
# shellcheck shell=sh disable=SC1091,SC2039,SC2166
# Completion is in sh to account for the zsh syntax & when zsh tries to source scripts from /etc/profiles

# Check for interactive bash and that we haven't already been sourced.
if [ "x${BASH_VERSION-}" != x -a "x${PS1-}" != x -a "x${BREW_BASH_COMPLETION-}" = x ]; then

    # Check for recent enough version of bash.
    if [ "${BASH_VERSINFO[0]}" -gt 4 ] ||
        [ "${BASH_VERSINFO[0]}" -eq 4 -a "${BASH_VERSINFO[1]}" -ge 2 ]; then
        if [ -w /home/linuxbrew/.linuxbrew ]; then
            if ! test -L /home/linuxbrew/.linuxbrew/etc/bash_completion.d/brew; then
                /home/linuxbrew/.linuxbrew/bin/brew completions link > /dev/null
            fi
        fi
        if test -d /home/linuxbrew/.linuxbrew/etc/bash_completion.d; then
            for rc in /home/linuxbrew/.linuxbrew/etc/bash_completion.d/*; do
                if test -r "$rc"; then
                    . "$rc"
                fi
            done
            unset rc
        fi
    fi
    BREW_BASH_COMPLETION=1
    export BREW_BASH_COMPLETION
fi