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require 'chef/application'
require 'chef/chef_fs/path_utils'
require 'chef/http/simple'
require 'chef/json_compat'
class Chef
class ConfigFetcher
attr_reader :config_location
def initialize(config_location)
@config_location = config_location
end
def fetch_json
config_data = read_config
begin
Chef::JSONCompat.from_json(config_data)
rescue Chef::Exceptions::JSON::ParseError => error
Chef::Application.fatal!("Could not parse the provided JSON file (#{config_location}): " + error.message, 2)
end
end
def read_config
if remote_config?
fetch_remote_config
else
read_local_config
end
end
def fetch_remote_config
http.get("")
rescue SocketError, SystemCallError, Net::HTTPServerException => error
Chef::Application.fatal!("Cannot fetch config '#{config_location}': '#{error.class}: #{error.message}", 2)
end
def read_local_config
::File.read(config_location)
rescue Errno::ENOENT => error
Chef::Application.fatal!("Cannot load configuration from #{config_location}", 2)
rescue Errno::EACCES => error
Chef::Application.fatal!("Permissions are incorrect on #{config_location}. Please chmod a+r #{config_location}", 2)
end
def config_missing?
return false if remote_config?
# Check if the config file exists
Pathname.new(config_location).realpath.to_s
false
rescue Errno::ENOENT
return true
end
def http
Chef::HTTP::Simple.new(config_location)
end
def remote_config?
!!(config_location =~ %r{^(http|https)://})
end
end
end
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