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require 'puppet/file_serving/content'
require 'puppet/file_serving/metadata'
module Puppet
# Copy files from a local or remote source. This state *only* does any work
# when the remote file is an actual file; in that case, this state copies
# the file down. If the remote file is a dir or a link or whatever, then
# this state, during retrieval, modifies the appropriate other states
# so that things get taken care of appropriately.
Puppet::Type.type(:file).newparam(:source) do
include Puppet::Util::Diff
attr_accessor :source, :local
desc "Copy a file over the current file. Uses `checksum` to
determine when a file should be copied. Valid values are either
fully qualified paths to files, or URIs. Currently supported URI
types are *puppet* and *file*.
This is one of the primary mechanisms for getting content into
applications that Puppet does not directly support and is very
useful for those configuration files that don't change much across
sytems. For instance:
class sendmail {
file { \"/etc/mail/sendmail.cf\":
source => \"puppet://server/modules/module_name/sendmail.cf\"
}
}
You can also leave out the server name, in which case `puppet agent`
will fill in the name of its configuration server and `puppet apply`
will use the local filesystem. This makes it easy to use the same
configuration in both local and centralized forms.
Currently, only the `puppet` scheme is supported for source
URL's. Puppet will connect to the file server running on
`server` to retrieve the contents of the file. If the
`server` part is empty, the behavior of the command-line
interpreter (`puppet apply`) and the client demon (`puppet agent`) differs
slightly: `apply` will look such a file up on the module path
on the local host, whereas `agent` will connect to the
puppet server that it received the manifest from.
See the [fileserver configuration documentation](http://docs.puppetlabs.com/guides/file_serving.html) for information on how to configure
and use file services within Puppet.
If you specify multiple file sources for a file, then the first
source that exists will be used. This allows you to specify
what amount to search paths for files:
file { \"/path/to/my/file\":
source => [
\"/modules/nfs/files/file.$host\",
\"/modules/nfs/files/file.$operatingsystem\",
\"/modules/nfs/files/file\"
]
}
This will use the first found file as the source.
You cannot currently copy links using this mechanism; set `links`
to `follow` if any remote sources are links.
"
validate do |sources|
sources = [sources] unless sources.is_a?(Array)
sources.each do |source|
begin
uri = URI.parse(URI.escape(source))
rescue => detail
self.fail "Could not understand source #{source}: #{detail}"
end
self.fail "Cannot use URLs of type '#{uri.scheme}' as source for fileserving" unless uri.scheme.nil? or %w{file puppet}.include?(uri.scheme)
end
end
munge do |sources|
sources = [sources] unless sources.is_a?(Array)
sources.collect { |source| source.sub(/\/$/, '') }
end
def change_to_s(currentvalue, newvalue)
# newvalue = "{md5}#{@metadata.checksum}"
if @resource.property(:ensure).retrieve == :absent
return "creating from source #{metadata.source} with contents #{metadata.checksum}"
else
return "replacing from source #{metadata.source} with contents #{metadata.checksum}"
end
end
def checksum
metadata && metadata.checksum
end
# Look up (if necessary) and return remote content.
def content
return @content if @content
raise Puppet::DevError, "No source for content was stored with the metadata" unless metadata.source
unless tmp = Puppet::FileServing::Content.indirection.find(metadata.source)
fail "Could not find any content at %s" % metadata.source
end
@content = tmp.content
end
# Copy the values from the source to the resource. Yay.
def copy_source_values
devfail "Somehow got asked to copy source values without any metadata" unless metadata
# Take each of the stats and set them as states on the local file
# if a value has not already been provided.
[:owner, :mode, :group, :checksum].each do |metadata_method|
param_name = (metadata_method == :checksum) ? :content : metadata_method
next if metadata_method == :owner and !Puppet.features.root?
next if metadata_method == :checksum and metadata.ftype == "directory"
next if metadata_method == :checksum and metadata.ftype == "link" and metadata.links == :manage
if resource[param_name].nil? or resource[param_name] == :absent
resource[param_name] = metadata.send(metadata_method)
end
end
if resource[:ensure] == :absent
# We know all we need to
elsif metadata.ftype != "link"
resource[:ensure] = metadata.ftype
elsif @resource[:links] == :follow
resource[:ensure] = :present
else
resource[:ensure] = "link"
resource[:target] = metadata.destination
end
end
def found?
! (metadata.nil? or metadata.ftype.nil?)
end
attr_writer :metadata
# Provide, and retrieve if necessary, the metadata for this file. Fail
# if we can't find data about this host, and fail if there are any
# problems in our query.
def metadata
return @metadata if @metadata
return nil unless value
value.each do |source|
begin
if data = Puppet::FileServing::Metadata.indirection.find(source)
@metadata = data
@metadata.source = source
break
end
rescue => detail
fail detail, "Could not retrieve file metadata for #{source}: #{detail}"
end
end
fail "Could not retrieve information from environment #{Puppet[:environment]} source(s) #{value.join(", ")}" unless @metadata
@metadata
end
def local?
found? and uri and (uri.scheme || "file") == "file"
end
def full_path
URI.unescape(uri.path) if found? and uri
end
def server
(uri and uri.host) or Puppet.settings[:server]
end
def port
(uri and uri.port) or Puppet.settings[:masterport]
end
private
def uri
@uri ||= URI.parse(URI.escape(metadata.source))
end
end
end
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