add Keg#empty_installation?

Avoid using `FormulaAuditor` in `FormulaInstaller`.

Closes Homebrew/homebrew#47887.

Signed-off-by: Xu Cheng <xucheng@me.com>

1 files changed, 6 insertions, 12 deletions

diff --git a/Library/Homebrew/cmd/audit.rb b/Library/Homebrew/cmd/audit.rb
index f881105a1..3750eaf25 100644
--- a/Library/Homebrew/cmd/audit.rb
+++ b/Library/Homebrew/cmd/audit.rb
@@ -883,19 +883,13 @@ class FormulaAuditor
   def audit_prefix_has_contents
     return unless formula.prefix.directory?
 
-    Pathname.glob("#{formula.prefix}/**/*") do |file|
-      next if file.directory?
-      basename = file.basename.to_s
-      next if Metafiles.copy?(basename)
-      next if %w[.DS_Store INSTALL_RECEIPT.json].include?(basename)
-      return
+    if Keg.new(formula.prefix).empty_installation?
+      problem <<-EOS.undent
+        The installation seems to be empty. Please ensure the prefix
+        is set correctly and expected files are installed.
+        The prefix configure/make argument may be case-sensitive.
+      EOS
     end
-
-    problem <<-EOS.undent
-      The installation seems to be empty. Please ensure the prefix
-      is set correctly and expected files are installed.
-      The prefix configure/make argument may be case-sensitive.
-    EOS
   end
 
   def audit_conditional_dep(dep, condition, line)