#!/bin/bash

# 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 "$HOMEBREW_LIBRARY" ]
then
  echo "${0##*/}: This shim is internal and must be run via brew." >&2
  exit 1
fi

# Don't need shellcheck to follow the `source`.
# shellcheck disable=SC1090
source "$HOMEBREW_LIBRARY/Homebrew/shims/utils.sh"

case "$(lowercase "$SHIM_FILE")" in
  git)
    if [[ -n "$HOMEBREW_GIT" && "$HOMEBREW_GIT" != git ]]
    then
      safe_exec "$(type -P "$HOMEBREW_GIT")" "$@"
    fi
    ;;
  svn)
    if [[ -n "$HOMEBREW_SVN" && "$HOMEBREW_SVN" != svn ]]
    then
      safe_exec "$(type -P "$HOMEBREW_SVN")" "$@"
    fi
    ;;
esac

brew_prefix_version="$HOMEBREW_PREFIX/bin/$SHIM_FILE"
safe_exec "$brew_prefix_version" "$@"

try_exec_non_system "$SHIM_FILE" "$@"

if executable "/usr/bin/xcode-select"
then
  # xcode-select will return empty on no Xcode/CLT configuration.
  #   /usr/bin/<tool> will be a popup stub under such configuration.
  # xcrun hangs if xcode-select is set to "/"
  xcode_path="$(/usr/bin/xcode-select -print-path 2>/dev/null)"
  if [[ -z "$xcode_path" ]]
  then
    if [[ "$HOMEBREW_MACOS_VERSION_NUMERIC" -ge "100900" ]]
    then
      popup_stub=1
    fi
  fi
  if [[ -z "$popup_stub" && "$xcode_path" != "/" ]]
  then
    path="$(/usr/bin/xcrun -find "$SHIM_FILE" 2>/dev/null)"
    safe_exec "$path" "$@"
  fi
fi

path="/Applications/Xcode.app/Contents/Developer/usr/bin/$SHIM_FILE"
safe_exec "$path" "$@"

if [[ -z "$popup_stub" && "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "101500" ]]
then
  path="/usr/bin/$SHIM_FILE"
  safe_exec "$path" "$@"
fi

echo "You must: brew install $SHIM_FILE" >&2
exit 1