Replace all occurrences of File.exists? with File.exist?

Summary:

Every time I go to use `File.exist?` I think to myself, "Which is it, `File.exists?` or `File.exist?`," and I go do a big grep search to discover that it's.... both?

Well, according to the [ruby docs](https://ruby-doc.org/core-2.2.0/File.html#exist-3F-method), `File.exists?` is deprecated.

So as a gift to my future self who will be doing an big grep in the future, this diff will replace all instances of `File.exists?` with `File.exist?` in cpe_* cookbooks.

Also, same thing for `Dir.exists?` => `Dir.exist?`

Reviewed By: gbatye, steelcowboy

Differential Revision: D21507238

fbshipit-source-id: 307533d148963088a84c0f5089ad708ba57a1239

itchef/cookbooks/cpe_flatpak/libraries/flatpak_helpers.rb

@@ -28,7 +28,7 @@ def flatpak_remotes_receipt_path
     end
 
     def flatpak_remotes_receipt
-      return [] unless ::File.exists?(flatpak_remotes_receipt_path)
+      return [] unless ::File.exist?(flatpak_remotes_receipt_path)
       Chef::JSONCompat.from_json(::File.read(flatpak_remotes_receipt_path))
     rescue StandardError
       []
@@ -39,7 +39,7 @@ def flatpak_packages_receipt_path
     end
 
     def flatpak_packages_receipt
-      return [] unless ::File.exists?(flatpak_packages_receipt_path)
+      return [] unless ::File.exist?(flatpak_packages_receipt_path)
       Chef::JSONCompat.from_json(::File.read(flatpak_packages_receipt_path))
     rescue StandardError
       []

itchef/cookbooks/cpe_remote/resources/file.rb

@@ -46,7 +46,7 @@
 
 load_current_value do |desired| # ~FC006
   path = desired.path
-  if ::File.exists?(path)
+  if ::File.exist?(path)
     f_stat = ::File.stat(path)
     checksum_ondisk = Chef::Digester.checksum_for_file(path)
     checksum checksum_ondisk

itchef/cookbooks/cpe_remote/resources/zip.rb

@@ -44,13 +44,13 @@
   extra_loco = extract_location.delete(':')
   zip_path = ::File.join(chef_cache, 'remote_zip', extra_loco, zip_name)
 
-  if ::File.exists?(zip_path)
+  if ::File.exist?(zip_path)
     checksum_ondisk = Chef::Digester.checksum_for_file(zip_path)
     zip_checksum checksum_ondisk
   end
 
   extract_path = desired.extract_location
-  if ::File.exists?(extract_path)
+  if ::File.exist?(extract_path)
     f_stat = ::File.stat(extract_path)
     unless platform?('windows')
       owner ::Etc.getpwuid(f_stat.uid).name

itchef/cookbooks/cpe_symlinks/resources/cpe_symlinks.rb

@@ -30,7 +30,7 @@
   # Create symlinks on disk
   node['cpe_symlinks'].to_h.map.each do |target_dir, symlinks|
     symlinks.each do |target, source|
-      next unless ::File.exists?(source)
+      next unless ::File.exist?(source)
       link ::File.join(target_dir, target) do
         to source
       end