On May 19, 12:04 am, Marc Fournier <marc.fourn...@camptocamp.com>
wrote:
> Just wondering if you are planning to publish your work once it's
> finished ? I've been doing this sort of thing using Exec's of
> "xmlstarlet", but a pure puppet type is much smarter !
Allow me to publish it here. The code:
* Assumes error-free operation; there is no validation, error
checking, etc.
* Unforgivingly expects the value of the attributes property to
conform to the syntax "key=value,key=value,key=value" ..
Obviously, the code will benefit from some T.L.C., but it functions in
my use case as-is.
BTW, I, too, was using xmlstarlet in shell scripts, whose essence are
being migrated into Puppet wholesale.
---- 8< ---- Manifest snippet, for your delectation ---- 8< ----
configxml { '/opt/jira/atlassian-jira/WEB-INF/classes/
entityengine.xml':
xpath => "/entity-config/
datasour...@name='defaultDS']",
attributes => 'field-type-name=postgres72,schema-
name=public',
}
configxml { '/opt/jira/conf/server.xml':
xpath => "/Server/Service/Engine/Host/Context/
resour...@name='jdbc/JiraDS']",
attributes => "username=$username,password=
$password,driverClassName=org.postgresql.Driver,url=jdbc:postgresql://
$host/$database",
}
---- 8< ---- /etc/puppet/modules/common/lib/puppet/type/configxml.rb
---- 8< ----
Puppet::Type.newtype(:configxml) do
@doc = "Modify attributes of the first element matching the XPath
expression in an XML file."
newparam(:name) do
desc "Full path of the XML document."
end
newparam(:xpath) do
desc "XPath expression selecting target elements; the first of
which
whose attributes will be set."
end
newproperty(:attributes) do
desc "An array of strings, each containing 'key=value'
expressions
setting element attributes."
end
end
---- 8< ---- /etc/puppet/modules/common/lib/puppet/provider/configxml/
configxml.rb ---- 8< ----
Puppet::Type.type(:configxml).provide(:configxml) do
desc "TODO"
require 'rexml/document'
require 'set'
def attributes
doc = REXML::Document.new(File.open(resource[:name]))
# Take the first element matching the provided XPath expression
attrs = doc.elements[resource[:xpath] + "[1]"].attributes
# Split up the comma-separated key-value pairs into an array and
then isolate the keys
keys = resource[:attributes].split(/,/).map { |s| s.split(/=/,
2)
[0] }
# Build up an array of attributes for the specified keys.
Arrange
keys in order of appearance
# in resource[:attributes] so that Puppet can compare the
desired
and current values.
keys.map { |k| "#{k}=#{attrs[k]}" }.join(',')
end
def attributes=(value)
doc = REXML::Document.new(File.open(resource[:name]))
# Take the first element matching the provided XPath expression
attrs = doc.elements[resource[:xpath] + "[1]"].attributes
# Split up the comma-separated key-value pairs and convert the
resulting array to a hash
updates = Hash[*resource[:attributes].split(/,/).map { |s|
s.split(/
=/, 2) }.flatten]
# Update this element's attributes
updates.each { |k, v| attrs[k] = v }
# Write the changes back
doc.write(File.open(resource[:name], 'w'))
end
end
--
You received this message because you are subscribed to the Google Groups
"Puppet Users" group.
To post to this group, send email to puppet-us...@googlegroups.com.
To unsubscribe from this group, send email to
puppet-users+unsubscr...@googlegroups.com.
For more options, visit this group at
http://groups.google.com/group/puppet-users?hl=en.
