(#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, 44 insertions, 0 deletions

diff --git a/lib/puppet/type/append_line.rb b/lib/puppet/type/append_line.rb
new file mode 100644
index 0000000..b3f926c
--- /dev/null
+++ b/lib/puppet/type/append_line.rb
@@ -0,0 +1,44 @@
+Puppet::Type.newtype(:append_line) do
+
+  desc <<-EOT
+  Type that can append a line to a file if it does not already contain it.
+
+  Example:
+
+  append_line { 'sudo_rule':
+    path => '/etc/sudoers',
+    line => '%admin ALL=(ALL) ALL',
+  }
+
+  EOT
+
+  ensurable do
+    defaultto :present
+    newvalue(:present) do
+      provider.create
+    end
+  end
+
+  newparam(:name, :namevar => true) do
+    desc 'arbitrary name used as identity'
+  end
+
+  newparam(:line) do
+    desc 'The line to be appended to the path.'
+  end
+
+  newparam(:path) do
+    desc 'File to possibly append a line to.'
+    validate do |value|
+      unless (Puppet.features.posix? and value =~ /^\//) or (Puppet.features.microsoft_windows? and (value =~ /^.:\// or value =~ /^\/\/[^\/]+\/[^\/]+/))
+        raise(Puppet::Error, "File paths must be fully qualified, not '#{value}'")
+      end
+    end
+  end
+
+  validate do
+    unless self[:line] and self[:path]
+      raise(Puppet::Error, "Both line and path are required attributes")
+    end
+  end
+end