have_sudo_access() { local -a args if [[ -n "${SUDO_ASKPASS-}" ]]; then args=("-A") fi
if [[ -z "${HAVE_SUDO_ACCESS-}" ]]; then if [[ -n "${args[*]-}" ]]; then /usr/bin/sudo "${args[@]}" -l mkdir &>/dev/null else /usr/bin/sudo -l mkdir &>/dev/null fi HAVE_SUDO_ACCESS="$?" fi
if [[ -z "${HOMEBREW_ON_LINUX-}" ]] && [[ "$HAVE_SUDO_ACCESS" -ne 0 ]]; then abort "Need sudo access on macOS (e.g. the user $USER to be an Administrator)!" fi
return"$HAVE_SUDO_ACCESS" }
shell_join() { local arg printf"%s""$1" shift for arg in"$@"; do printf" " printf"%s""${arg// /\ }" done }
resolved_pathname() { realpath "$1"; }
pretty_print_pathnames() { local p for p in"$@"; do if [[ -h $p ]]; then printf'%s -> %s\n'"$p""$(resolved_pathname "$p")" elif [[ -d $p ]]; then echo"$p/" else echo"$p" fi done }
execute() { if ! "$@"; then abort "$(printf "Failed during: %s""$(shell_join "$@")")" fi }
execute_sudo() { local -a args=("$@") if [[ -n "${SUDO_ASKPASS-}" ]]; then args=("-A""${args[@]}") fi if have_sudo_access; then ohai "/usr/bin/sudo""${args[@]}" system "/usr/bin/sudo""${args[@]}" else ohai "${args[@]}" system "${args[@]}" fi }
system() { if ! "$@"; then warn "Failed during: $(shell_join "$@")" failed=true fi }
if [[ $ostype == macos ]]; then dir_children "/Applications""$HOME/Applications" | whileread -r p2; do [[ $(resolved_pathname "$p2") == $HOMEBREW_CELLAR/* ]] && echo"$p2" done fi } | whileread -r l; do [[ -e $l ]] && echo"$l" done | sort -u > "$tmpdir/homebrew_files" homebrew_files=() whileread -r l; do homebrew_files+=("$l") done < "$tmpdir/homebrew_files"
if [[ -z $opt_quiet ]]; then dry_str=${opt_dry_run:+would} warn "This script ${dry_str:-will} remove:" pretty_print_pathnames "${homebrew_files[@]}" fi
if [[ -t 0 && -z $opt_force && -z $opt_dry_run ]]; then read -rp "Are you sure you want to uninstall Homebrew? This will remove your installed packages! [y/N] " [[ $REPLY == [yY]* ]] || abort fi
[[ -n $opt_quiet ]] || ohai "Removing Homebrew installation..." paths=() for p in Frameworks bin etc include lib opt sbin share var; do p=$HOMEBREW_PREFIX/$p [[ -e $p ]] && paths+=("$p") done if [[ ${#paths[@]} -gt 0 ]]; then if [[ $ostype == macos ]]; then args=(-E "${paths[@]}" -regex '.*/info/([^.][^/]*\.info|dir)') else args=("${paths[@]}" -regextype posix-extended -regex '.*/info/([^.][^/]*\.info|dir)') fi if [[ -n $opt_dry_run ]]; then args+=(-print) echo"Would delete:" else args+=(-exec /bin/bash -c) args+=("/usr/bin/install-info --delete --quiet {} \"\$(dirname {})/dir\"") args+=(';') fi system /usr/bin/find "${args[@]}" args=("${paths[@]}" -type l -lname '*/Cellar/*') if [[ -n $opt_dry_run ]]; then args+=(-print) else args+=(-exec unlink '{}'';') fi [[ -n $opt_dry_run ]] && echo"Would delete:" system /usr/bin/find "${args[@]}" fi
for file in"${homebrew_files[@]}"; do if [[ -n $opt_dry_run ]]; then echo"Would delete ${file}" else if ! err=$(rm -fr "$file" 2>&1); then warn "Failed to delete ${file}" echo"$err" fi fi done
sudo() { ohai "/usr/bin/sudo""$@" system /usr/bin/sudo "$@" }
[[ -n $opt_quiet ]] || ohai "Removing empty directories..." paths=() for p in bin etc include lib opt sbin share var \ Caskroom Cellar Homebrew Frameworks; do p=$HOMEBREW_PREFIX/$p [[ -e $p ]] && paths+=("$p") done if [[ ${#paths[@]} -gt 0 ]]; then if [[ $ostype == macos ]]; then args=("${paths[@]}" -name .DS_Store) if [[ -n $opt_dry_run ]]; then args+=(-print) echo"Would delete:" else args+=(-delete) fi execute_sudo /usr/bin/find "${args[@]}" fi args=("${paths[@]}" -depth -type d -empty) if [[ -n $opt_dry_run ]]; then args+=(-print) echo"Would remove directories:" else args+=(-exec rmdir '{}'';') fi execute_sudo /usr/bin/find "${args[@]}" fi
[[ -n $opt_dry_run ]] && exit if [[ $HOMEBREW_PREFIX != "$homebrew_prefix_default" && -e $HOMEBREW_PREFIX ]]; then execute_sudo rmdir "$HOMEBREW_PREFIX" fi if [[ $HOMEBREW_PREFIX != "$HOMEBREW_REPOSITORY" && -e $HOMEBREW_REPOSITORY ]]; then execute_sudo rmdir "$HOMEBREW_REPOSITORY" fi
if [[ -z $opt_quiet ]]; then if [[ $failed == true ]]; then warn "Homebrew partially uninstalled (but there were steps that failed)!" echo"To finish uninstalling rerun this script with \`sudo\`." else ohai "Homebrew uninstalled!" fi fi
if [[ -s $tmpdir/residual_files && -z $opt_quiet ]]; then echo"The following possible Homebrew files were not deleted:" whileread -r f; do pretty_print_pathnames "$f" done <"$tmpdir/residual_files" echo -e "You may wish to remove them yourself.\n" fi
