Revert "shims/mac/super: add ruby shims to set SDKROOT"

.github/workflows/tests.yml

@@ -276,7 +276,7 @@ jobs:
       - name: Install brew tests dependencies
         run: |
           brew install subversion
-          brew sh -c "svn --homebrew=print-path"
+          Library/Homebrew/shims/scm/svn --homebrew=print-path
           which svn
           which svnadmin
 

Library/Homebrew/shims/scm/git

@@ -3,15 +3,87 @@
 # This script because we support $HOMEBREW_GIT, $HOMEBREW_SVN, etc., Xcode-only and
 # no Xcode/CLT configurations. Order is careful to be what the user would want.
 
-if [ -z "$HOMEBREW_LIBRARY" ]
+set +o posix
+
+quiet_safe_cd() {
+  cd "$1" >/dev/null || { echo "Error: failed to cd to $1" >&2; exit 1; }
+}
+
+absdir() {
+  quiet_safe_cd "${1%/*}/" && pwd -P
+}
+
+dirbasepath() {
+  local dir="$1"
+  local base="${2##*/}"
+  echo "$dir/$base"
+}
+
+realpath() {
+  local path="$1"
+  local dir
+  local dest
+
+  dir="$(absdir "$path")"
+  path="$(dirbasepath "$dir" "$path")"
+
+  while [[ -L "$path" ]]
+  do
+    dest="$(readlink "$path")"
+    if [[ "$dest" = "/"* ]]
+    then
+      path="$dest"
+    else
+      path="$dir/$dest"
+    fi
+    dir="$(absdir "$path")"
+    path="$(dirbasepath "$dir" "$path")"
+  done
+
+  echo "$path"
+}
+
+executable() {
+  local file="$1"
+  [[ -f "$file" && -x "$file" ]]
+}
+
+lowercase() {
+  echo "$1" | tr "[:upper:]" "[:lower:]"
+}
+
+safe_exec() {
+  local arg0="$1"
+  if ! executable "$arg0"
+  then
+    return
+  fi
+  # prevent fork-bombs
+  if [[ "$(lowercase "$arg0")" = "$SCM_FILE" || "$(realpath "$arg0")" = "$SCM_REAL" ]]
+  then
+    return
+  fi
+  if [[ "$HOMEBREW" = "print-path" ]]
+  then
+    local dir="$(quiet_safe_cd "${arg0%/*}/" && pwd)"
+    local path="$(dirbasepath "$dir" "$arg0")"
+    echo "$path"
+    exit
+  fi
+  exec "$@"
+}
+
+SCM_FILE="${0##*/}"
+SCM_REAL="$(realpath "$0")"
+SCM_DIR="$(quiet_safe_cd "${SCM_REAL%/*}/" && pwd -P)"
+
+if [[ "$1" = --homebrew=* ]]
 then
-  echo "${0##*/}: This shim is internal and must be run via `brew`." >&2
-  exit 1
+  HOMEBREW="${1:11}"
+  shift
 fi
 
-source "$HOMEBREW_LIBRARY/Homebrew/shims/utils.sh"
-
-case "$(lowercase "$SHIM_FILE")" in
+case "$(lowercase "$SCM_FILE")" in
   git)
     if [[ -n "$HOMEBREW_GIT" && "$HOMEBREW_GIT" != git ]]
     then
@@ -26,10 +98,21 @@ case "$(lowercase "$SHIM_FILE")" in
     ;;
 esac
 
-brew_prefix_version="$HOMEBREW_PREFIX/bin/$SHIM_FILE"
+brew_prefix_version="$(quiet_safe_cd "$SCM_DIR/../../../../../bin" 2>/dev/null && pwd -P)/$SCM_FILE"
 safe_exec "$brew_prefix_version" "$@"
 
-try_exec_non_system "$SHIM_FILE" "$@"
+brew_repo_version="$(quiet_safe_cd "$SCM_DIR/../../../../bin" && pwd -P)/$SCM_FILE"
+safe_exec "$brew_repo_version" "$@"
+
+IFS=$'\n'
+for path in $(type -aP "$SCM_FILE")
+do
+  if [[ "$path" != "/usr/bin/$SCM_FILE" ]]
+  then
+    safe_exec "$path" "$@"
+  fi
+done
+unset IFS
 
 if executable "/usr/bin/xcode-select"
 then
@@ -46,19 +129,19 @@ then
   fi
   if [[ -z "$popup_stub" && "$xcode_path" != "/" ]]
   then
-    path="$(/usr/bin/xcrun -find "$SHIM_FILE" 2>/dev/null)"
+    path="$(/usr/bin/xcrun -find "$SCM_FILE" 2>/dev/null)"
     safe_exec "$path" "$@"
   fi
 fi
 
-path="/Applications/Xcode.app/Contents/Developer/usr/bin/$SHIM_FILE"
+path="/Applications/Xcode.app/Contents/Developer/usr/bin/$SCM_FILE"
 safe_exec "$path" "$@"
 
 if [[ -z "$popup_stub" && "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "101500" ]]
 then
-  path="/usr/bin/$SHIM_FILE"
+  path="/usr/bin/$SCM_FILE"
   safe_exec "$path" "$@"
 fi
 
-echo "You must: brew install $SHIM_FILE" >&2
+echo "You must: brew install $SCM_FILE" >&2
 exit 1