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authorChris Price <chris@puppetlabs.com>2012-06-07 09:09:14 -0700
committerJeff McCune <jeff@puppetlabs.com>2012-08-14 09:55:30 -0700
commita06c0d8115892a74666676b50d4282df9850a119 (patch)
tree0ded58647c134dafa32604725b010f32a465164f /lib/puppet/type/file_line.rb
parentf30885118843f2eef15c048fe2cb504d7eaf8f77 (diff)
Add support for a 'match' parameter to file_line
This commit adds a new parameter called "match" to the file_line resource type, and support for this new parameter to the corresponding ruby provider. This parameter is optional; file_line should work just as before if you do not specify this parameter... so this change should be backwards-compatible. If you do specify the parameter, it is treated as a regular expression that should be used when looking through the file for a line. This allows you to do things like find a line that begins with a certain prefix (e.g., "foo=.*"), and *replace* the existing line with the line you specify in your "line" parameter. Without this capability, if you already had a line "foo=bar" in your file and your "line" parameter was set to "foo=baz", you'd end up with *both* lines in the final file. In many cases this is undesirable.
Diffstat (limited to 'lib/puppet/type/file_line.rb')
-rw-r--r--lib/puppet/type/file_line.rb12
1 files changed, 12 insertions, 0 deletions
diff --git a/lib/puppet/type/file_line.rb b/lib/puppet/type/file_line.rb
index f6fe1d0..6b35902 100644
--- a/lib/puppet/type/file_line.rb
+++ b/lib/puppet/type/file_line.rb
@@ -32,6 +32,11 @@ Puppet::Type.newtype(:file_line) do
desc 'An arbitrary name used as the identity of the resource.'
end
+ newparam(:match) do
+ desc 'An optional regular expression to run against existing lines in the file;\n' +
+ 'if a match is found, we replace that line rather than adding a new line.'
+ end
+
newparam(:line) do
desc 'The line to be appended to the file located by the path parameter.'
end
@@ -49,5 +54,12 @@ Puppet::Type.newtype(:file_line) do
unless self[:line] and self[:path]
raise(Puppet::Error, "Both line and path are required attributes")
end
+
+ if (self[:match])
+ unless Regexp.new(self[:match]).match(self[:line])
+ raise(Puppet::Error, "When providing a 'match' parameter, the value must be a regex that matches against the value of your 'line' parameter")
+ end
+ end
+
end
end