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|
require_relative "../plugins"
require "digest"
module Train::Transports
class Mock < Train.plugin(1)
name "mock"
def initialize(conf = nil)
@conf = conf || {}
trace_calls if @conf[:trace]
end
def connection
@connection ||= Connection.new(@conf)
end
def to_s
"Mock Transport"
end
private
def trace_calls
interface_methods = {
"Train::Transports::Mock" =>
Train::Transports::Mock.instance_methods(false),
"Train::Transports::Mock::Connection" =>
Connection.instance_methods(false),
"Train::Transports::Mock::Connection::File" =>
Connection::FileCommon.instance_methods(false),
"Train::Transports::Mock::Connection::OS" =>
Train::Platform.instance_methods(false),
}
# rubocop:disable Metrics/ParameterLists
# rubocop:disable Security/Eval
set_trace_func(proc { |event, _file, _line, id, binding, classname|
unless classname.to_s.start_with?("Train::Transports::Mock") &&
(event == "call") &&
interface_methods[classname.to_s].include?(id)
next
end
# kindly borrowed from the wonderful simple-tracer by matugm
arg_names = eval(
"method(__method__).parameters.map { |arg| arg[1].to_s }",
binding
)
args = eval("#{arg_names}.map { |arg| eval(arg) }", binding).join(", ")
prefix = "-" * (classname.to_s.count(":") - 2) + "> "
puts("#{prefix}#{id} #{args}")
})
# rubocop:enable all
end
end
end
class Train::Transports::Mock
class Connection < BaseConnection
attr_reader :options
def initialize(conf = nil)
super(conf)
mock_os
enable_cache(:file)
enable_cache(:command)
end
def uri
"mock://"
end
DEFAULTS = {
name: "mock",
family: "mock",
release: "unknown",
arch: "unknown",
}.freeze
def mock_os(value = {})
value = DEFAULTS
.merge(value || {})
.transform_values { |v| v || "unknown" }
platform = Train::Platforms.name(value[:name])
platform.find_family_hierarchy
platform.platform = value
platform.add_platform_methods
@platform = platform
end
def commands=(commands)
@cache[:command] = commands
end
def commands
@cache[:command]
end
def files=(files)
@cache[:file] = files
end
def files
@cache[:file]
end
def mock_command(cmd, stdout = nil, stderr = nil, exit_status = 0)
@cache[:command][cmd] = Command.new(stdout || "", stderr || "", exit_status)
end
def command_not_found(cmd)
if @options[:verbose]
$stderr.puts("Command not mocked:")
$stderr.puts(" " + cmd.to_s.split("\n").join("\n "))
$stderr.puts(" SHA: " + Digest::SHA256.hexdigest(cmd.to_s))
end
# return a non-zero exit code
mock_command(cmd, nil, nil, 1)
end
def file_not_found(path)
$stderr.puts("File not mocked: " + path.to_s) if @options[:verbose]
File.new(self, path)
end
def to_s
"Mock Connection"
end
private
def run_command_via_connection(cmd, &_data_handler)
@cache[:command][Digest::SHA256.hexdigest cmd.to_s] ||
command_not_found(cmd)
end
def file_via_connection(path)
file_not_found(path)
end
end
end
class Train::Transports::Mock::Connection
Command = Struct.new(:stdout, :stderr, :exit_status)
end
class Train::Transports::Mock::Connection
class File < Train::File
def self.from_json(json)
res = new(json["backend"],
json["path"],
json["follow_symlink"])
res.type = json["type"]
Train::File::DATA_FIELDS.each do |f|
m = (f.tr("?", "") + "=").to_sym
res.method(m).call(json[f])
end
res
end
Train::File::DATA_FIELDS.each do |m|
attr_accessor m.tr("?", "").to_sym
next unless m.include?("?")
define_method m.to_sym do
method(m.tr("?", "").to_sym).call
end
end
attr_accessor :type
def initialize(backend, path, follow_symlink = true)
super(backend, path, follow_symlink)
@type = :unknown
@exist = false
end
def mounted
@mounted ||=
@backend.run_command("mount | grep -- ' on #{@path}'")
end
end
end
|
