(#8628) Add append_line native type

This commit adds a native type that can check if
a line exists and append it to a file.

This use case seems common enough to warrant its
inclusion into stdlib.

Reviewed-by: Jeff McCune

1 files changed, 15 insertions, 0 deletions

diff --git a/lib/puppet/provider/append_line/ruby.rb b/lib/puppet/provider/append_line/ruby.rb
new file mode 100644
index 0000000..5e78659
--- /dev/null
+++ b/lib/puppet/provider/append_line/ruby.rb
@@ -0,0 +1,15 @@
+Puppet::Type.type(:append_line).provide(:ruby) do
+
+  def exists?
+    File.readlines(resource[:path]).find do |line|
+      line.chomp == resource[:line].chomp
+    end
+  end
+
+  def create
+    File.open(resource[:path], 'a') do |fh|
+      fh.puts resource[:line]
+    end
+  end
+
+end