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# encoding: utf-8
##
## FILES
##
module LeapCli
module Macro
#
# inserts the contents of a file
#
def file(filename, options={})
if filename.is_a? Symbol
filename = [filename, @node.name]
end
filepath = Path.find_file(filename)
if filepath
if filepath =~ /\.erb$/
return ERB.new(File.read(filepath, :encoding => 'UTF-8'), nil, '%<>').result(binding)
else
return File.read(filepath, :encoding => 'UTF-8')
end
else
raise FileMissing.new(Path.named_path(filename), options)
end
end
#
# like #file, but allow missing files
#
def try_file(filename)
return file(filename)
rescue FileMissing
return nil
end
#
# returns the location of a file that is stored on the local
# host, under PROVIDER_DIR/files.
#
def local_file_path(path, options={})
if path.is_a? Symbol
path = [path, @node.name]
elsif path.is_a? String
# ensure it prefixed with files/
unless path =~ /^files\//
path = "files/" + path
end
end
local_path = Path.find_file(path)
if local_path.nil?
if options[:missing]
raise FileMissing.new(Path.named_path(path), options)
elsif block_given?
yield
return local_file_path(path, options) # try again.
else
Util::log 2, :skipping, "local_file_path(\"#{path}\") because there is no such file."
return nil
end
else
return local_path
end
end
#
# Returns the location of a file once it is deployed via rsync to the a
# remote server. An internal list of discovered file paths is saved, in
# order to rsync these files when needed.
#
# If the file does not exist, nil is returned.
#
# If there is a block given and the file does not actually exist, the
# block will be yielded to give an opportunity for some code to create the
# file.
#
# For example:
#
# file_path(:dkim_priv_key) {generate_dkim_key}
#
# notes:
#
# * argument 'path' is relative to Path.provider/files or
# Path.provider_base/files
# * the path returned by this method is absolute
# * the path stored for use later by rsync is relative to Path.provider
# * if the path does not exist locally, but exists in provider_base,
# then the default file from provider_base is copied locally. this
# is required for rsync to work correctly.
#
def remote_file_path(path, options={}, &block)
local_path = local_file_path(path, options, &block)
return nil if local_path.nil?
# if file is under Path.provider_base, we must copy the default file to
# to Path.provider in order for rsync to be able to sync the file.
if local_path =~ /^#{Regexp.escape(Path.provider_base)}/
local_provider_path = local_path.sub(/^#{Regexp.escape(Path.provider_base)}/, Path.provider)
FileUtils.mkdir_p File.dirname(local_provider_path), :mode => 0700
FileUtils.install local_path, local_provider_path, :mode => 0600
Util.log :created, Path.relative_path(local_provider_path)
local_path = local_provider_path
end
# ensure directories end with /, important for building rsync command
if File.directory?(local_path) && local_path !~ /\/$/
local_path += '/'
end
relative_path = Path.relative_path(local_path)
relative_path.sub!(/^files\//, '') # remove "files/" prefix
@node.file_paths << relative_path
return File.join(Leap::Platform.files_dir, relative_path)
end
# deprecated
def file_path(path, options={})
return remote_file_path(path, options)
end
end
end
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