From fcbf63e62c627deae76c1b8cb8c0876c536ed811 Mon Sep 17 00:00:00 2001 From: Jari Vetoniemi Date: Mon, 16 Mar 2020 18:49:26 +0900 Subject: Fresh start --- jni/ruby/lib/rake/application.rb | 790 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 790 insertions(+) create mode 100644 jni/ruby/lib/rake/application.rb (limited to 'jni/ruby/lib/rake/application.rb') diff --git a/jni/ruby/lib/rake/application.rb b/jni/ruby/lib/rake/application.rb new file mode 100644 index 0000000..bd72a2e --- /dev/null +++ b/jni/ruby/lib/rake/application.rb @@ -0,0 +1,790 @@ +require 'shellwords' +require 'optparse' + +require 'rake/task_manager' +require 'rake/file_list' +require 'rake/thread_pool' +require 'rake/thread_history_display' +require 'rake/trace_output' +require 'rake/win32' + +module Rake + + CommandLineOptionError = Class.new(StandardError) + + ## + # Rake main application object. When invoking +rake+ from the + # command line, a Rake::Application object is created and run. + + class Application + include TaskManager + include TraceOutput + + # The name of the application (typically 'rake') + attr_reader :name + + # The original directory where rake was invoked. + attr_reader :original_dir + + # Name of the actual rakefile used. + attr_reader :rakefile + + # Number of columns on the terminal + attr_accessor :terminal_columns + + # List of the top level task names (task names from the command line). + attr_reader :top_level_tasks + + DEFAULT_RAKEFILES = [ + 'rakefile', + 'Rakefile', + 'rakefile.rb', + 'Rakefile.rb' + ].freeze + + # Initialize a Rake::Application object. + def initialize + super + @name = 'rake' + @rakefiles = DEFAULT_RAKEFILES.dup + @rakefile = nil + @pending_imports = [] + @imported = [] + @loaders = {} + @default_loader = Rake::DefaultLoader.new + @original_dir = Dir.pwd + @top_level_tasks = [] + add_loader('rb', DefaultLoader.new) + add_loader('rf', DefaultLoader.new) + add_loader('rake', DefaultLoader.new) + @tty_output = STDOUT.tty? + @terminal_columns = ENV['RAKE_COLUMNS'].to_i + end + + # Run the Rake application. The run method performs the following + # three steps: + # + # * Initialize the command line options (+init+). + # * Define the tasks (+load_rakefile+). + # * Run the top level tasks (+top_level+). + # + # If you wish to build a custom rake command, you should call + # +init+ on your application. Then define any tasks. Finally, + # call +top_level+ to run your top level tasks. + def run + standard_exception_handling do + init + load_rakefile + top_level + end + end + + # Initialize the command line parameters and app name. + def init(app_name='rake') + standard_exception_handling do + @name = app_name + args = handle_options + collect_command_line_tasks(args) + end + end + + # Find the rakefile and then load it and any pending imports. + def load_rakefile + standard_exception_handling do + raw_load_rakefile + end + end + + # Run the top level tasks of a Rake application. + def top_level + run_with_threads do + if options.show_tasks + display_tasks_and_comments + elsif options.show_prereqs + display_prerequisites + else + top_level_tasks.each { |task_name| invoke_task(task_name) } + end + end + end + + # Run the given block with the thread startup and shutdown. + def run_with_threads + thread_pool.gather_history if options.job_stats == :history + + yield + + thread_pool.join + if options.job_stats + stats = thread_pool.statistics + puts "Maximum active threads: #{stats[:max_active_threads]} + main" + puts "Total threads in play: #{stats[:total_threads_in_play]} + main" + end + ThreadHistoryDisplay.new(thread_pool.history).show if + options.job_stats == :history + end + + # Add a loader to handle imported files ending in the extension + # +ext+. + def add_loader(ext, loader) + ext = ".#{ext}" unless ext =~ /^\./ + @loaders[ext] = loader + end + + # Application options from the command line + def options + @options ||= OpenStruct.new + end + + # Return the thread pool used for multithreaded processing. + def thread_pool # :nodoc: + @thread_pool ||= ThreadPool.new(options.thread_pool_size || Rake.suggested_thread_count-1) + end + + # internal ---------------------------------------------------------------- + + # Invokes a task with arguments that are extracted from +task_string+ + def invoke_task(task_string) # :nodoc: + name, args = parse_task_string(task_string) + t = self[name] + t.invoke(*args) + end + + def parse_task_string(string) # :nodoc: + /^([^\[]+)(?:\[(.*)\])$/ =~ string.to_s + + name = $1 + remaining_args = $2 + + return string, [] unless name + return name, [] if remaining_args.empty? + + args = [] + + begin + /((?:[^\\,]|\\.)*?)\s*(?:,\s*(.*))?$/ =~ remaining_args + + remaining_args = $2 + args << $1.gsub(/\\(.)/, '\1') + end while remaining_args + + return name, args + end + + # Provide standard exception handling for the given block. + def standard_exception_handling # :nodoc: + yield + rescue SystemExit + # Exit silently with current status + raise + rescue OptionParser::InvalidOption => ex + $stderr.puts ex.message + exit(false) + rescue Exception => ex + # Exit with error message + display_error_message(ex) + exit_because_of_exception(ex) + end + + # Exit the program because of an unhandle exception. + # (may be overridden by subclasses) + def exit_because_of_exception(ex) # :nodoc: + exit(false) + end + + # Display the error message that caused the exception. + def display_error_message(ex) # :nodoc: + trace "#{name} aborted!" + display_exception_details(ex) + trace "Tasks: #{ex.chain}" if has_chain?(ex) + trace "(See full trace by running task with --trace)" unless + options.backtrace + end + + def display_exception_details(ex) # :nodoc: + seen = Thread.current[:rake_display_exception_details_seen] ||= [] + return if seen.include? ex + seen << ex + + display_exception_message_details(ex) + display_exception_backtrace(ex) + display_exception_details(ex.cause) if has_cause?(ex) + end + + def has_cause?(ex) # :nodoc: + ex.respond_to?(:cause) && ex.cause + end + + def display_exception_message_details(ex) # :nodoc: + if ex.instance_of?(RuntimeError) + trace ex.message + else + trace "#{ex.class.name}: #{ex.message}" + end + end + + def display_exception_backtrace(ex) # :nodoc: + if options.backtrace + trace ex.backtrace.join("\n") + else + trace Backtrace.collapse(ex.backtrace).join("\n") + end + end + + # Warn about deprecated usage. + # + # Example: + # Rake.application.deprecate("import", "Rake.import", caller.first) + # + def deprecate(old_usage, new_usage, call_site) # :nodoc: + unless options.ignore_deprecate + $stderr.puts "WARNING: '#{old_usage}' is deprecated. " + + "Please use '#{new_usage}' instead.\n" + + " at #{call_site}" + end + end + + # Does the exception have a task invocation chain? + def has_chain?(exception) # :nodoc: + exception.respond_to?(:chain) && exception.chain + end + private :has_chain? + + # True if one of the files in RAKEFILES is in the current directory. + # If a match is found, it is copied into @rakefile. + def have_rakefile # :nodoc: + @rakefiles.each do |fn| + if File.exist?(fn) + others = FileList.glob(fn, File::FNM_CASEFOLD) + return others.size == 1 ? others.first : fn + elsif fn == '' + return fn + end + end + return nil + end + + # True if we are outputting to TTY, false otherwise + def tty_output? # :nodoc: + @tty_output + end + + # Override the detected TTY output state (mostly for testing) + def tty_output=(tty_output_state) # :nodoc: + @tty_output = tty_output_state + end + + # We will truncate output if we are outputting to a TTY or if we've been + # given an explicit column width to honor + def truncate_output? # :nodoc: + tty_output? || @terminal_columns.nonzero? + end + + # Display the tasks and comments. + def display_tasks_and_comments # :nodoc: + displayable_tasks = tasks.select { |t| + (options.show_all_tasks || t.comment) && + t.name =~ options.show_task_pattern + } + case options.show_tasks + when :tasks + width = displayable_tasks.map { |t| t.name_with_args.length }.max || 10 + if truncate_output? + max_column = terminal_width - name.size - width - 7 + else + max_column = nil + end + + displayable_tasks.each do |t| + printf("#{name} %-#{width}s # %s\n", + t.name_with_args, + max_column ? truncate(t.comment, max_column) : t.comment) + end + when :describe + displayable_tasks.each do |t| + puts "#{name} #{t.name_with_args}" + comment = t.full_comment || "" + comment.split("\n").each do |line| + puts " #{line}" + end + puts + end + when :lines + displayable_tasks.each do |t| + t.locations.each do |loc| + printf "#{name} %-30s %s\n", t.name_with_args, loc + end + end + else + fail "Unknown show task mode: '#{options.show_tasks}'" + end + end + + def terminal_width # :nodoc: + if @terminal_columns.nonzero? + result = @terminal_columns + else + result = unix? ? dynamic_width : 80 + end + (result < 10) ? 80 : result + rescue + 80 + end + + # Calculate the dynamic width of the + def dynamic_width # :nodoc: + @dynamic_width ||= (dynamic_width_stty.nonzero? || dynamic_width_tput) + end + + def dynamic_width_stty # :nodoc: + %x{stty size 2>/dev/null}.split[1].to_i + end + + def dynamic_width_tput # :nodoc: + %x{tput cols 2>/dev/null}.to_i + end + + def unix? # :nodoc: + RbConfig::CONFIG['host_os'] =~ + /(aix|darwin|linux|(net|free|open)bsd|cygwin|solaris|irix|hpux)/i + end + + def windows? # :nodoc: + Win32.windows? + end + + def truncate(string, width) # :nodoc: + if string.nil? + "" + elsif string.length <= width + string + else + (string[0, width - 3] || "") + "..." + end + end + + # Display the tasks and prerequisites + def display_prerequisites # :nodoc: + tasks.each do |t| + puts "#{name} #{t.name}" + t.prerequisites.each { |pre| puts " #{pre}" } + end + end + + def trace(*strings) # :nodoc: + options.trace_output ||= $stderr + trace_on(options.trace_output, *strings) + end + + def sort_options(options) # :nodoc: + options.sort_by { |opt| + opt.select { |o| o =~ /^-/ }.map { |o| o.downcase }.sort.reverse + } + end + private :sort_options + + # A list of all the standard options used in rake, suitable for + # passing to OptionParser. + def standard_rake_options # :nodoc: + sort_options( + [ + ['--all', '-A', + "Show all tasks, even uncommented ones (in combination with -T or -D)", + lambda { |value| + options.show_all_tasks = value + } + ], + ['--backtrace=[OUT]', + "Enable full backtrace. OUT can be stderr (default) or stdout.", + lambda { |value| + options.backtrace = true + select_trace_output(options, 'backtrace', value) + } + ], + ['--build-all', '-B', + "Build all prerequisites, including those which are up-to-date.", + lambda { |value| + options.build_all = true + } + ], + ['--comments', + "Show commented tasks only", + lambda { |value| + options.show_all_tasks = !value + } + ], + ['--describe', '-D [PATTERN]', + "Describe the tasks (matching optional PATTERN), then exit.", + lambda { |value| + select_tasks_to_show(options, :describe, value) + } + ], + ['--dry-run', '-n', + "Do a dry run without executing actions.", + lambda { |value| + Rake.verbose(true) + Rake.nowrite(true) + options.dryrun = true + options.trace = true + } + ], + ['--execute', '-e CODE', + "Execute some Ruby code and exit.", + lambda { |value| + eval(value) + exit + } + ], + ['--execute-print', '-p CODE', + "Execute some Ruby code, print the result, then exit.", + lambda { |value| + puts eval(value) + exit + } + ], + ['--execute-continue', '-E CODE', + "Execute some Ruby code, " + + "then continue with normal task processing.", + lambda { |value| eval(value) } + ], + ['--jobs', '-j [NUMBER]', + "Specifies the maximum number of tasks to execute in parallel. " + + "(default is number of CPU cores + 4)", + lambda { |value| + if value.nil? || value == '' + value = FIXNUM_MAX + elsif value =~ /^\d+$/ + value = value.to_i + else + value = Rake.suggested_thread_count + end + value = 1 if value < 1 + options.thread_pool_size = value - 1 + } + ], + ['--job-stats [LEVEL]', + "Display job statistics. " + + "LEVEL=history displays a complete job list", + lambda { |value| + if value =~ /^history/i + options.job_stats = :history + else + options.job_stats = true + end + } + ], + ['--libdir', '-I LIBDIR', + "Include LIBDIR in the search path for required modules.", + lambda { |value| $:.push(value) } + ], + ['--multitask', '-m', + "Treat all tasks as multitasks.", + lambda { |value| options.always_multitask = true } + ], + ['--no-search', '--nosearch', + '-N', "Do not search parent directories for the Rakefile.", + lambda { |value| options.nosearch = true } + ], + ['--prereqs', '-P', + "Display the tasks and dependencies, then exit.", + lambda { |value| options.show_prereqs = true } + ], + ['--quiet', '-q', + "Do not log messages to standard output.", + lambda { |value| Rake.verbose(false) } + ], + ['--rakefile', '-f [FILENAME]', + "Use FILENAME as the rakefile to search for.", + lambda { |value| + value ||= '' + @rakefiles.clear + @rakefiles << value + } + ], + ['--rakelibdir', '--rakelib', '-R RAKELIBDIR', + "Auto-import any .rake files in RAKELIBDIR. " + + "(default is 'rakelib')", + lambda { |value| + options.rakelib = value.split(File::PATH_SEPARATOR) + } + ], + ['--require', '-r MODULE', + "Require MODULE before executing rakefile.", + lambda { |value| + begin + require value + rescue LoadError => ex + begin + rake_require value + rescue LoadError + raise ex + end + end + } + ], + ['--rules', + "Trace the rules resolution.", + lambda { |value| options.trace_rules = true } + ], + ['--silent', '-s', + "Like --quiet, but also suppresses the " + + "'in directory' announcement.", + lambda { |value| + Rake.verbose(false) + options.silent = true + } + ], + ['--suppress-backtrace PATTERN', + "Suppress backtrace lines matching regexp PATTERN. " + + "Ignored if --trace is on.", + lambda { |value| + options.suppress_backtrace_pattern = Regexp.new(value) + } + ], + ['--system', '-g', + "Using system wide (global) rakefiles " + + "(usually '~/.rake/*.rake').", + lambda { |value| options.load_system = true } + ], + ['--no-system', '--nosystem', '-G', + "Use standard project Rakefile search paths, " + + "ignore system wide rakefiles.", + lambda { |value| options.ignore_system = true } + ], + ['--tasks', '-T [PATTERN]', + "Display the tasks (matching optional PATTERN) " + + "with descriptions, then exit.", + lambda { |value| + select_tasks_to_show(options, :tasks, value) + } + ], + ['--trace=[OUT]', '-t', + "Turn on invoke/execute tracing, enable full backtrace. " + + "OUT can be stderr (default) or stdout.", + lambda { |value| + options.trace = true + options.backtrace = true + select_trace_output(options, 'trace', value) + Rake.verbose(true) + } + ], + ['--verbose', '-v', + "Log message to standard output.", + lambda { |value| Rake.verbose(true) } + ], + ['--version', '-V', + "Display the program version.", + lambda { |value| + puts "rake, version #{RAKEVERSION}" + exit + } + ], + ['--where', '-W [PATTERN]', + "Describe the tasks (matching optional PATTERN), then exit.", + lambda { |value| + select_tasks_to_show(options, :lines, value) + options.show_all_tasks = true + } + ], + ['--no-deprecation-warnings', '-X', + "Disable the deprecation warnings.", + lambda { |value| + options.ignore_deprecate = true + } + ], + ]) + end + + def select_tasks_to_show(options, show_tasks, value) # :nodoc: + options.show_tasks = show_tasks + options.show_task_pattern = Regexp.new(value || '') + Rake::TaskManager.record_task_metadata = true + end + private :select_tasks_to_show + + def select_trace_output(options, trace_option, value) # :nodoc: + value = value.strip unless value.nil? + case value + when 'stdout' + options.trace_output = $stdout + when 'stderr', nil + options.trace_output = $stderr + else + fail CommandLineOptionError, + "Unrecognized --#{trace_option} option '#{value}'" + end + end + private :select_trace_output + + # Read and handle the command line options. Returns the command line + # arguments that we didn't understand, which should (in theory) be just + # task names and env vars. + def handle_options # :nodoc: + options.rakelib = ['rakelib'] + options.trace_output = $stderr + + OptionParser.new do |opts| + opts.banner = "#{Rake.application.name} [-f rakefile] {options} targets..." + opts.separator "" + opts.separator "Options are ..." + + opts.on_tail("-h", "--help", "-H", "Display this help message.") do + puts opts + exit + end + + standard_rake_options.each { |args| opts.on(*args) } + opts.environment('RAKEOPT') + end.parse(ARGV) + end + + # Similar to the regular Ruby +require+ command, but will check + # for *.rake files in addition to *.rb files. + def rake_require(file_name, paths=$LOAD_PATH, loaded=$") # :nodoc: + fn = file_name + ".rake" + return false if loaded.include?(fn) + paths.each do |path| + full_path = File.join(path, fn) + if File.exist?(full_path) + Rake.load_rakefile(full_path) + loaded << fn + return true + end + end + fail LoadError, "Can't find #{file_name}" + end + + def find_rakefile_location # :nodoc: + here = Dir.pwd + until (fn = have_rakefile) + Dir.chdir("..") + return nil if Dir.pwd == here || options.nosearch + here = Dir.pwd + end + [fn, here] + ensure + Dir.chdir(Rake.original_dir) + end + + def print_rakefile_directory(location) # :nodoc: + $stderr.puts "(in #{Dir.pwd})" unless + options.silent or original_dir == location + end + + def raw_load_rakefile # :nodoc: + rakefile, location = find_rakefile_location + if (! options.ignore_system) && + (options.load_system || rakefile.nil?) && + system_dir && File.directory?(system_dir) + print_rakefile_directory(location) + glob("#{system_dir}/*.rake") do |name| + add_import name + end + else + fail "No Rakefile found (looking for: #{@rakefiles.join(', ')})" if + rakefile.nil? + @rakefile = rakefile + Dir.chdir(location) + print_rakefile_directory(location) + Rake.load_rakefile(File.expand_path(@rakefile)) if + @rakefile && @rakefile != '' + options.rakelib.each do |rlib| + glob("#{rlib}/*.rake") do |name| + add_import name + end + end + end + load_imports + end + + def glob(path, &block) # :nodoc: + FileList.glob(path.gsub("\\", '/')).each(&block) + end + private :glob + + # The directory path containing the system wide rakefiles. + def system_dir # :nodoc: + @system_dir ||= + begin + if ENV['RAKE_SYSTEM'] + ENV['RAKE_SYSTEM'] + else + standard_system_dir + end + end + end + + # The standard directory containing system wide rake files. + if Win32.windows? + def standard_system_dir #:nodoc: + Win32.win32_system_dir + end + else + def standard_system_dir #:nodoc: + File.join(File.expand_path('~'), '.rake') + end + end + private :standard_system_dir + + # Collect the list of tasks on the command line. If no tasks are + # given, return a list containing only the default task. + # Environmental assignments are processed at this time as well. + # + # `args` is the list of arguments to peruse to get the list of tasks. + # It should be the command line that was given to rake, less any + # recognised command-line options, which OptionParser.parse will + # have taken care of already. + def collect_command_line_tasks(args) # :nodoc: + @top_level_tasks = [] + args.each do |arg| + if arg =~ /^(\w+)=(.*)$/m + ENV[$1] = $2 + else + @top_level_tasks << arg unless arg =~ /^-/ + end + end + @top_level_tasks.push(default_task_name) if @top_level_tasks.empty? + end + + # Default task name ("default"). + # (May be overridden by subclasses) + def default_task_name # :nodoc: + "default" + end + + # Add a file to the list of files to be imported. + def add_import(fn) # :nodoc: + @pending_imports << fn + end + + # Load the pending list of imported files. + def load_imports # :nodoc: + while fn = @pending_imports.shift + next if @imported.member?(fn) + fn_task = lookup(fn) and fn_task.invoke + ext = File.extname(fn) + loader = @loaders[ext] || @default_loader + loader.load(fn) + if fn_task = lookup(fn) and fn_task.needed? + fn_task.reenable + fn_task.invoke + loader.load(fn) + end + @imported << fn + end + end + + def rakefile_location(backtrace=caller) # :nodoc: + backtrace.map { |t| t[/([^:]+):/, 1] } + + re = /^#{@rakefile}$/ + re = /#{re.source}/i if windows? + + backtrace.find { |str| str =~ re } || '' + end + + private + FIXNUM_MAX = (2**(0.size * 8 - 2) - 1) # :nodoc: + + end +end -- cgit v1.2.3