Update 19.10.2022

zsh/plugins/brew/brew.plugin.zsh

@@ -1,11 +1,38 @@
+if (( ! $+commands[brew] )); then
+  if [[ -x /opt/homebrew/bin/brew ]]; then
+    BREW_LOCATION="/opt/homebrew/bin/brew"
+  elif [[ -x /usr/local/bin/brew ]]; then
+    BREW_LOCATION="/usr/local/bin/brew"
+  elif [[ -x /home/linuxbrew/.linuxbrew/bin/brew ]]; then
+    BREW_LOCATION="/home/linuxbrew/.linuxbrew/bin/brew"
+  elif [[ -x "$HOME/.linuxbrew/bin/brew" ]]; then
+    BREW_LOCATION="$HOME/.linuxbrew/bin/brew"
+  else
+    return
+  fi
+
+  # Only add Homebrew installation to PATH, MANPATH, and INFOPATH if brew is
+  # not already on the path, to prevent duplicate entries. This aligns with
+  # the behavior of the brew installer.sh post-install steps.
+  eval "$("$BREW_LOCATION" shellenv)"
+  unset BREW_LOCATION
+fi
+
+if [[ -z "$HOMEBREW_PREFIX" ]]; then
+  # Maintain compatability with potential custom user profiles, where we had
+  # previously relied on always sourcing shellenv. OMZ plugins should not rely
+  # on this to be defined due to out of order processing.
+  export HOMEBREW_PREFIX="$(brew --prefix)"
+fi
+
+alias bcubc='brew upgrade --cask && brew cleanup'
+alias bcubo='brew update && brew outdated --cask'
 alias brewp='brew pin'
 alias brewsp='brew list --pinned'
-alias bubo='brew update && brew outdated'
 alias bubc='brew upgrade && brew cleanup'
+alias bubo='brew update && brew outdated'
 alias bubu='bubo && bubc'
 alias buf='brew upgrade --formula'
-alias bcubo='brew update && brew outdated --cask'
-alias bcubc='brew upgrade --cask && brew cleanup'
 
 function brews() {
   local formulae="$(brew leaves | xargs brew deps --installed --for-each)"