Fixes #4745. (SystemCallError) Unknown error 123 - FindFirstFile with…

… AsciidoctorJ-PDF on Win10 doh...9.1.9.0 was the first version to actually start calling this .symlink? impl and it does not work with uris. A comedy of errors I think ended up masking this implementation out in 9.1.3.0. This rolls with the original patch @headius made but I moved some stuff around a tiny bit.
jruby · Aug 30, 2017 · c77d3de · c77d3de
1 parent b9b2e20
commit c77d3de
Showing 1 changed file with 6 additions and 8 deletions.
diff --git a/core/src/main/ruby/jruby/kernel/file.rb b/core/src/main/ruby/jruby/kernel/file.rb
@@ -125,11 +125,12 @@ def self.symlink(target, link)
         # Returns whether or not +file+ is a symlink.
         #
         def self.symlink?(file)
-          return false unless File.exist?(file)
+          file = string_check(file)
 
-          bool  = false
-          wfile = string_check(file).wincode
+          return false if file =~ /^(classpath:|classloader:|uri:classloader|jar:)/ || !File.exist?(file)
 
+          file.slice!(5..-1) if file =~ /^file:/
+          wfile = checked.wincode
           attrib = GetFileAttributesW(wfile)
 
           if attrib == INVALID_FILE_ATTRIBUTES
@@ -145,15 +146,12 @@ def self.symlink?(file)
                 raise SystemCallError.new('FindFirstFile', FFI.errno)
               end
 
-              if find_data[:dwReserved0] == IO_REPARSE_TAG_SYMLINK
-                bool = true
-              end
+              return true if find_data[:dwReserved0] == IO_REPARSE_TAG_SYMLINK
             ensure
               CloseHandle(handle)
             end
           end
-
-          bool
+          false
         end
 
         private