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require 'erb'
require 'fileutils'
require_relative '../options'
require_relative '../log'
module RCM
# Managing files
class File
attr_reader :id, :path
include Options
include Log
def initialize(path)
@id = "#{self.class}(#{path})"
@path = path
end
def to_s = id
def content(content = nil)
return @content if content.nil?
@content = content.instance_of?(Array) ? content.join("\n") : content
end
def create_parent_directory = @create_parent = true
def from_sourcefile = @from_sourcefile = true
def from_template = @from_template = true
def evaluate!
create_parent_directory!
content = real_content
info "Creating file #{@path}"
debug content if option :debug
tmp_path = "#{@path}.tmp"
::File.write(tmp_path, content)
::File.rename(tmp_path, @path)
end
private
def create_parent_directory!
dirname = ::File.dirname(@path)
return unless !::File.directory?(dirname) && @create_parent
info "Creating parent directory #{parent}"
FileUtils.mkdir_p(dirname)
end
def real_content
content = @from_sourcefile ? ::File.read(@content) : @content
@from_template ? ERB.new(content).result : content
end
end
# Add file keyword to the DSL
class DSL
def file(path, &block)
return unless @conds_met
f = File.new(path)
f.content(f.instance_eval(&block))
self << f
f
end
end
end
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