homebrew: Enhance code, no functional changes

diff --git a/plugins/homebrew/homebrew.zshrc b/plugins/homebrew/homebrew.zshrc
index 8759da50fbe4e4a10324b47442c64e9333900fac..12a0f2206b14838d3309f1e7349f6da764db82fc 100644 (file)
--- a/plugins/homebrew/homebrew.zshrc
+++ b/plugins/homebrew/homebrew.zshrc
@@ -18,14 +18,14 @@ function brew() {
        #   installed by Homebrew.
        # - Call the "real" brew(1) command.
 
-       if [ -x /home/linuxbrew/.linuxbrew/bin/brew ]; then
+       if [[ -x /home/linuxbrew/.linuxbrew/bin/brew ]]; then
                real_brew_cmd="/home/linuxbrew/.linuxbrew/bin/brew"
-       elif [ -x /opt/homebrew/bin/brew ]; then
+       elif [[ -x /opt/homebrew/bin/brew ]]; then
                real_brew_cmd="/opt/homebrew/bin/brew"
-       elif [ -x /usr/local/bin/brew ]; then
+       elif [[ -x /usr/local/bin/brew ]]; then
                real_brew_cmd="/usr/local/bin/brew"
        else
-               if [ "$1" != "shellenv" ] && [ "$1" != "--prefix" ]; then
+               if [[ "$1" != "shellenv" && "$1" != "--prefix" ]]; then
                        echo "Oops, real \"brew\" command not found!? [for \"$1\"]" >&2
                fi
                return 101
@@ -38,13 +38,12 @@ function brew() {
        if [[ $(/bin/ls -ldn "$HOMEBREW_REPOSITORY" | awk '{print $3}') -eq $UID ]]; then
                # We are the owner of the Homebrew installation.
                (
-                       [[ $# -eq 0 && -t 1 ]] \
-                               && echo "Running \"$real_brew_cmd\" ..."
+                       [[ $# -eq 0 && -t 1 ]] && echo "Running \"$real_brew_cmd\" ..."
                        umask 0022 || return 103
                        "$real_brew_cmd" "$@"
                )
        else
-               # We are a different user than the owner of the Homebew
+               # We are a different user than the owner of the Homebrew
                # installation. So we need to change the user when running the
                # real "brew" command!
                priv_exec="umask 0022 || exit 103; \"$real_brew_cmd\" $*"