(#5477) Allow watch_file to watch non-existent files, especially site.pp

The watch_file mechanism would refuse to monitor paths to files that
didn't exist. This patch makes it possible to watch a file that hasn't
been created yet, so when it is created, you manifests will get
reparsed.

Backported this change to 2.6.x

Paired-With: Jacob Helwig <jacob@puppetlabs.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/spec/unit/parser/lexer_spec.rb b/spec/unit/parser/lexer_spec.rb
index 4ef242cf5..d144504c5 100755
--- a/spec/unit/parser/lexer_spec.rb
+++ b/spec/unit/parser/lexer_spec.rb
@@ -679,3 +679,15 @@ describe "Puppet::Parser::Lexer in the old tests when lexing example files" do
     end
   end
 end
+
+describe "when trying to lex an non-existent file" do
+  include PuppetSpec::Files
+
+  it "should return an empty list of tokens" do
+    lexer = Puppet::Parser::Lexer.new
+    lexer.file = nofile = tmpfile('lexer')
+    File.exists?(nofile).should == false
+
+    lexer.fullscan.should == [[false,false]]
+  end
+end