src/Pure/Tools/build.scala
author wenzelm
Fri Apr 07 20:25:01 2017 +0200 (2017-04-07)
changeset 65432 d938705819bb
parent 65431 4a3e6cda3b94
child 65441 9425e4d8bdb6
permissions -rw-r--r--
tuned;
     1 /*  Title:      Pure/Tools/build.scala
     2     Author:     Makarius
     3     Options:    :folding=explicit:
     4 
     5 Build and manage Isabelle sessions.
     6 */
     7 
     8 package isabelle
     9 
    10 
    11 import java.io.{BufferedInputStream, FileInputStream,
    12   BufferedReader, InputStreamReader, IOException}
    13 import java.util.zip.GZIPInputStream
    14 
    15 import scala.collection.SortedSet
    16 import scala.collection.mutable
    17 import scala.annotation.tailrec
    18 
    19 
    20 object Build
    21 {
    22   /** auxiliary **/
    23 
    24   /* persistent build info */
    25 
    26   sealed case class Session_Info(
    27     sources: List[String],
    28     input_heaps: List[String],
    29     output_heap: Option[String],
    30     return_code: Int)
    31 
    32 
    33   /* queue with scheduling information */
    34 
    35   private object Queue
    36   {
    37     def load_timings(store: Sessions.Store, name: String): (List[Properties.T], Double) =
    38     {
    39       val no_timings: (List[Properties.T], Double) = (Nil, 0.0)
    40 
    41       store.find_database(name) match {
    42         case None => no_timings
    43         case Some(database) =>
    44           def ignore_error(msg: String) =
    45           {
    46             Output.warning("Ignoring bad database: " +
    47               database.expand + (if (msg == "") "" else "\n" + msg))
    48             no_timings
    49           }
    50           try {
    51             using(SQLite.open_database(database))(db =>
    52             {
    53               val build_log = store.read_build_log(db, name, command_timings = true)
    54               val session_timing = Markup.Elapsed.unapply(build_log.session_timing) getOrElse 0.0
    55               (build_log.command_timings, session_timing)
    56             })
    57           }
    58           catch {
    59             case ERROR(msg) => ignore_error(msg)
    60             case exn: java.lang.Error => ignore_error(Exn.message(exn))
    61             case _: XML.Error => ignore_error("")
    62           }
    63       }
    64     }
    65 
    66     def apply(sessions: Sessions.T, store: Sessions.Store): Queue =
    67     {
    68       val graph = sessions.build_graph
    69       val names = graph.keys
    70 
    71       val timings = names.map(name => (name, load_timings(store, name)))
    72       val command_timings =
    73         Map(timings.map({ case (name, (ts, _)) => (name, ts) }): _*).withDefaultValue(Nil)
    74       val session_timing =
    75         Map(timings.map({ case (name, (_, t)) => (name, t) }): _*).withDefaultValue(0.0)
    76 
    77       def outdegree(name: String): Int = graph.imm_succs(name).size
    78 
    79       object Ordering extends scala.math.Ordering[String]
    80       {
    81         def compare_timing(name1: String, name2: String): Int =
    82         {
    83           val t1 = session_timing(name1)
    84           val t2 = session_timing(name2)
    85           if (t1 == 0.0 || t2 == 0.0) 0
    86           else t1 compare t2
    87         }
    88 
    89         def compare(name1: String, name2: String): Int =
    90           outdegree(name2) compare outdegree(name1) match {
    91             case 0 =>
    92               compare_timing(name2, name1) match {
    93                 case 0 =>
    94                   sessions(name2).timeout compare sessions(name1).timeout match {
    95                     case 0 => name1 compare name2
    96                     case ord => ord
    97                   }
    98                 case ord => ord
    99               }
   100             case ord => ord
   101           }
   102       }
   103 
   104       new Queue(graph, SortedSet(names: _*)(Ordering), command_timings)
   105     }
   106   }
   107 
   108   private class Queue(
   109     graph: Graph[String, Sessions.Info],
   110     order: SortedSet[String],
   111     val command_timings: String => List[Properties.T])
   112   {
   113     def is_inner(name: String): Boolean = !graph.is_maximal(name)
   114 
   115     def is_empty: Boolean = graph.is_empty
   116 
   117     def - (name: String): Queue =
   118       new Queue(graph.del_node(name),
   119         order - name,  // FIXME scala-2.10.0 TreeSet problem!?
   120         command_timings)
   121 
   122     def dequeue(skip: String => Boolean): Option[(String, Sessions.Info)] =
   123     {
   124       val it = order.iterator.dropWhile(name =>
   125         skip(name)
   126           || !graph.defined(name)  // FIXME scala-2.10.0 TreeSet problem!?
   127           || !graph.is_minimal(name))
   128       if (it.hasNext) { val name = it.next; Some((name, graph.get_node(name))) }
   129       else None
   130     }
   131   }
   132 
   133 
   134   /* PIDE protocol handler */
   135 
   136   class Handler(progress: Progress, session: Session, session_name: String)
   137     extends Session.Protocol_Handler
   138   {
   139     val result_error: Promise[String] = Future.promise
   140 
   141     override def exit() { result_error.cancel }
   142 
   143     private def build_session_finished(msg: Prover.Protocol_Output): Boolean =
   144     {
   145       val error_message =
   146         try { Pretty.string_of(Symbol.decode_yxml(msg.text)) }
   147         catch { case ERROR(msg) => msg }
   148       result_error.fulfill(error_message)
   149       session.send_stop()
   150       true
   151     }
   152 
   153     private def loading_theory(msg: Prover.Protocol_Output): Boolean =
   154       msg.properties match {
   155         case Markup.Loading_Theory(name) =>
   156           progress.theory(session_name, name)
   157           true
   158         case _ => false
   159       }
   160 
   161     val functions =
   162       List(
   163         Markup.BUILD_SESSION_FINISHED -> build_session_finished _,
   164         Markup.LOADING_THEORY -> loading_theory _)
   165   }
   166 
   167 
   168   /* job: running prover process */
   169 
   170   private class Job(progress: Progress,
   171     name: String,
   172     val info: Sessions.Info,
   173     sessions: Sessions.T,
   174     deps: Sessions.Deps,
   175     store: Sessions.Store,
   176     do_output: Boolean,
   177     verbose: Boolean,
   178     pide: Boolean,
   179     val numa_node: Option[Int],
   180     command_timings: List[Properties.T])
   181   {
   182     val output = store.output_dir + Path.basic(name)
   183     def output_path: Option[Path] = if (do_output) Some(output) else None
   184     output.file.delete
   185 
   186     val options =
   187       numa_node match {
   188         case None => info.options
   189         case Some(n) => info.options.string("ML_process_policy") = NUMA.policy(n)
   190       }
   191 
   192     private val graph_file = Isabelle_System.tmp_file("session_graph", "pdf")
   193     try { isabelle.graphview.Graph_File.write(options, graph_file, deps(name).session_graph) }
   194     catch { case ERROR(_) => /*error should be exposed in ML*/ }
   195 
   196     private val future_result: Future[Process_Result] =
   197       Future.thread("build") {
   198         val parent = info.parent.getOrElse("")
   199 
   200         val args_yxml =
   201           YXML.string_of_body(
   202             {
   203               import XML.Encode._
   204               pair(list(pair(string, int)), pair(list(properties), pair(bool, pair(bool,
   205                 pair(Path.encode, pair(list(pair(Path.encode, Path.encode)), pair(string,
   206                 pair(string, pair(string, pair(string, pair(Path.encode,
   207                 pair(list(pair(Options.encode, list(string))),
   208                 list(pair(string, string))))))))))))))(
   209               (Symbol.codes, (command_timings, (do_output, (verbose,
   210                 (store.browser_info, (info.document_files, (File.standard_path(graph_file),
   211                 (parent, (info.chapter, (name, (Path.current,
   212                 (info.theories,
   213                 deps(name).dest_known_theories)))))))))))))
   214             })
   215 
   216         val env =
   217           Isabelle_System.settings() +
   218             ("ISABELLE_ML_DEBUGGER" -> options.bool("ML_debugger").toString)
   219 
   220         def save_heap: String =
   221           "ML_Heap.share_common_data (); ML_Heap.save_child " +
   222             ML_Syntax.print_string0(File.platform_path(output))
   223 
   224         if (pide && !Sessions.is_pure(name)) {
   225           val resources = new Resources(name, deps(parent))
   226           val session = new Session(options, resources)
   227           val handler = new Handler(progress, session, name)
   228           session.init_protocol_handler(handler)
   229 
   230           val session_result = Future.promise[Process_Result]
   231 
   232           Isabelle_Process.start(session, options, logic = parent,
   233             cwd = info.dir.file, env = env, sessions = Some(sessions), store = store,
   234             phase_changed =
   235             {
   236               case Session.Ready => session.protocol_command("build_session", args_yxml)
   237               case Session.Terminated(result) => session_result.fulfill(result)
   238               case _ =>
   239             })
   240 
   241           val result = session_result.join
   242           handler.result_error.join match {
   243             case "" => result
   244             case msg =>
   245               result.copy(
   246                 rc = result.rc max 1,
   247                 out_lines = result.out_lines ::: split_lines(Output.error_text(msg)))
   248           }
   249         }
   250         else {
   251           val args_file = Isabelle_System.tmp_file("build")
   252           File.write(args_file, args_yxml)
   253 
   254           val eval =
   255             "Command_Line.tool0 (fn () => (" +
   256             "Build.build " + ML_Syntax.print_string0(File.standard_path(args_file)) +
   257             (if (do_output) "; " + save_heap else "") + "));"
   258 
   259           val process =
   260             if (Sessions.is_pure(name)) {
   261               ML_Process(options, raw_ml_system = true, cwd = info.dir.file,
   262                 args =
   263                   (for ((root, _) <- Thy_Header.ml_roots) yield List("--use", root)).flatten :::
   264                   List("--eval", eval),
   265                 env = env, sessions = Some(sessions), store = store,
   266                 cleanup = () => args_file.delete)
   267             }
   268             else {
   269               ML_Process(options, parent, List("--eval", eval), cwd = info.dir.file,
   270                 env = env, sessions = Some(sessions), store = store,
   271                 cleanup = () => args_file.delete)
   272             }
   273 
   274           process.result(
   275             progress_stdout = (line: String) =>
   276               Library.try_unprefix("\floading_theory = ", line) match {
   277                 case Some(theory) => progress.theory(name, theory)
   278                 case None =>
   279               },
   280             progress_limit =
   281               options.int("process_output_limit") match {
   282                 case 0 => None
   283                 case m => Some(m * 1000000L)
   284               },
   285             strict = false)
   286         }
   287       }
   288 
   289     def terminate: Unit = future_result.cancel
   290     def is_finished: Boolean = future_result.is_finished
   291 
   292     @volatile private var was_timeout = false
   293     private val timeout_request: Option[Event_Timer.Request] =
   294     {
   295       if (info.timeout > Time.zero)
   296         Some(Event_Timer.request(Time.now() + info.timeout) { terminate; was_timeout = true })
   297       else None
   298     }
   299 
   300     def join: Process_Result =
   301     {
   302       val result = future_result.join
   303 
   304       if (result.ok)
   305         Present.finish(progress, store.browser_info, graph_file, info, name)
   306 
   307       graph_file.delete
   308       timeout_request.foreach(_.cancel)
   309 
   310       if (result.interrupted) {
   311         if (was_timeout) result.error(Output.error_text("Timeout")).was_timeout
   312         else result.error(Output.error_text("Interrupt"))
   313       }
   314       else result
   315     }
   316   }
   317 
   318 
   319 
   320   /** build with results **/
   321 
   322   class Results private[Build](results: Map[String, (Option[Process_Result], Sessions.Info)])
   323   {
   324     def sessions: Set[String] = results.keySet
   325     def cancelled(name: String): Boolean = results(name)._1.isEmpty
   326     def apply(name: String): Process_Result = results(name)._1.getOrElse(Process_Result(1))
   327     def info(name: String): Sessions.Info = results(name)._2
   328     val rc =
   329       (0 /: results.iterator.map(
   330         { case (_, (Some(r), _)) => r.rc case (_, (None, _)) => 1 }))(_ max _)
   331     def ok: Boolean = rc == 0
   332 
   333     override def toString: String = rc.toString
   334   }
   335 
   336   def build(
   337     options: Options,
   338     progress: Progress = No_Progress,
   339     build_heap: Boolean = false,
   340     clean_build: Boolean = false,
   341     dirs: List[Path] = Nil,
   342     select_dirs: List[Path] = Nil,
   343     numa_shuffling: Boolean = false,
   344     max_jobs: Int = 1,
   345     list_files: Boolean = false,
   346     check_keywords: Set[String] = Set.empty,
   347     no_build: Boolean = false,
   348     system_mode: Boolean = false,
   349     verbose: Boolean = false,
   350     pide: Boolean = false,
   351     requirements: Boolean = false,
   352     all_sessions: Boolean = false,
   353     exclude_session_groups: List[String] = Nil,
   354     exclude_sessions: List[String] = Nil,
   355     session_groups: List[String] = Nil,
   356     sessions: List[String] = Nil,
   357     selection: Sessions.Selection = Sessions.Selection.empty): Results =
   358   {
   359     /* session selection and dependencies */
   360 
   361     val build_options = options.int.update("completion_limit", 0).bool.update("ML_statistics", true)
   362 
   363     val full_sessions = Sessions.load(build_options, dirs, select_dirs)
   364 
   365     val (selected, selected_sessions) =
   366       full_sessions.selection(
   367           Sessions.Selection(requirements, all_sessions, exclude_session_groups,
   368             exclude_sessions, session_groups, sessions) + selection)
   369 
   370     val deps =
   371       Sessions.deps(selected_sessions, progress = progress, inlined_files = true,
   372         verbose = verbose, list_files = list_files, check_keywords = check_keywords,
   373         global_theories = full_sessions.global_theories)
   374 
   375     def sources_stamp(name: String): List[String] =
   376       (selected_sessions(name).meta_digest :: deps.sources(name)).map(_.toString).sorted
   377 
   378 
   379     /* main build process */
   380 
   381     val store = Sessions.store(system_mode)
   382     val queue = Queue(selected_sessions, store)
   383 
   384     store.prepare_output()
   385 
   386     // optional cleanup
   387     if (clean_build) {
   388       for (name <- full_sessions.build_descendants(selected)) {
   389         val files =
   390           List(Path.basic(name), store.database(name), store.log(name), store.log_gz(name)).
   391             map(store.output_dir + _).filter(_.is_file)
   392         if (files.nonEmpty) progress.echo("Cleaning " + name + " ...")
   393         if (!files.forall(p => p.file.delete)) progress.echo(name + " FAILED to delete")
   394       }
   395     }
   396 
   397     // scheduler loop
   398     case class Result(
   399       current: Boolean, heap_stamp: Option[String],
   400       process: Option[Process_Result], info: Sessions.Info)
   401     {
   402       def ok: Boolean =
   403         process match {
   404           case None => false
   405           case Some(res) => res.rc == 0
   406         }
   407     }
   408 
   409     def sleep()
   410     {
   411       try { Thread.sleep(500) }
   412       catch { case Exn.Interrupt() => Exn.Interrupt.impose() }
   413     }
   414 
   415     val numa_nodes = new NUMA.Nodes(numa_shuffling)
   416 
   417     @tailrec def loop(
   418       pending: Queue,
   419       running: Map[String, (List[String], Job)],
   420       results: Map[String, Result]): Map[String, Result] =
   421     {
   422       def used_node(i: Int): Boolean =
   423         running.iterator.exists(
   424           { case (_, (_, job)) => job.numa_node.isDefined && job.numa_node.get == i })
   425 
   426       if (pending.is_empty) results
   427       else {
   428         if (progress.stopped)
   429           for ((_, (_, job)) <- running) job.terminate
   430 
   431         running.find({ case (_, (_, job)) => job.is_finished }) match {
   432           case Some((name, (input_heaps, job))) =>
   433             //{{{ finish job
   434 
   435             val process_result = job.join
   436             process_result.err_lines.foreach(progress.echo(_))
   437             if (process_result.ok)
   438               progress.echo("Finished " + name + " (" + process_result.timing.message_resources + ")")
   439 
   440             val log_lines = process_result.out_lines.filterNot(_.startsWith("\f"))
   441             val process_result_tail =
   442             {
   443               val tail = job.info.options.int("process_output_tail")
   444               process_result.copy(
   445                 out_lines =
   446                   "(see also " + (store.output_dir + store.log(name)).file.toString + ")" ::
   447                   (if (tail == 0) log_lines else log_lines.drop(log_lines.length - tail max 0)))
   448             }
   449 
   450             val heap_stamp =
   451               if (process_result.ok) {
   452                 (store.output_dir + store.log(name)).file.delete
   453                 val heap_stamp =
   454                   for (path <- job.output_path if path.is_file)
   455                     yield Sessions.write_heap_digest(path)
   456 
   457                 File.write_gzip(store.output_dir + store.log_gz(name), terminate_lines(log_lines))
   458 
   459                 heap_stamp
   460               }
   461               else {
   462                 (store.output_dir + Path.basic(name)).file.delete
   463                 (store.output_dir + store.log_gz(name)).file.delete
   464 
   465                 File.write(store.output_dir + store.log(name), terminate_lines(log_lines))
   466                 progress.echo(name + " FAILED")
   467                 if (!process_result.interrupted) progress.echo(process_result_tail.out)
   468 
   469                 None
   470               }
   471 
   472             // write database
   473             {
   474               val database = store.output_dir + store.database(name)
   475               database.file.delete
   476 
   477               using(SQLite.open_database(database))(db =>
   478                 store.write_session_info(db, name,
   479                   build_log =
   480                     Build_Log.Log_File(name, process_result.out_lines).
   481                       parse_session_info(
   482                         command_timings = true, ml_statistics = true, task_statistics = true),
   483                   build =
   484                     Session_Info(sources_stamp(name), input_heaps, heap_stamp, process_result.rc)))
   485             }
   486 
   487             loop(pending - name, running - name,
   488               results + (name -> Result(false, heap_stamp, Some(process_result_tail), job.info)))
   489             //}}}
   490           case None if running.size < (max_jobs max 1) =>
   491             //{{{ check/start next job
   492             pending.dequeue(running.isDefinedAt(_)) match {
   493               case Some((name, info)) =>
   494                 val ancestor_results = selected_sessions.build_ancestors(name).map(results(_))
   495                 val ancestor_heaps = ancestor_results.flatMap(_.heap_stamp)
   496 
   497                 val do_output = build_heap || Sessions.is_pure(name) || queue.is_inner(name)
   498 
   499                 val (current, heap_stamp) =
   500                 {
   501                   store.find_database_heap(name) match {
   502                     case Some((database, heap_stamp)) =>
   503                       using(SQLite.open_database(database))(store.read_build(_, name)) match {
   504                         case Some(build) =>
   505                           val current =
   506                             build.sources == sources_stamp(name) &&
   507                             build.input_heaps == ancestor_heaps &&
   508                             build.output_heap == heap_stamp &&
   509                             !(do_output && heap_stamp.isEmpty) &&
   510                             build.return_code == 0
   511                           (current, heap_stamp)
   512                         case None => (false, None)
   513                       }
   514                     case None => (false, None)
   515                   }
   516                 }
   517                 val all_current = current && ancestor_results.forall(_.current)
   518 
   519                 if (all_current)
   520                   loop(pending - name, running,
   521                     results + (name -> Result(true, heap_stamp, Some(Process_Result(0)), info)))
   522                 else if (no_build) {
   523                   if (verbose) progress.echo("Skipping " + name + " ...")
   524                   loop(pending - name, running,
   525                     results + (name -> Result(false, heap_stamp, Some(Process_Result(1)), info)))
   526                 }
   527                 else if (ancestor_results.forall(_.ok) && !progress.stopped) {
   528                   val numa_node = numa_nodes.next(used_node(_))
   529                   progress.echo((if (do_output) "Building " else "Running ") + name + " ...")
   530                   val job =
   531                     new Job(progress, name, info, selected_sessions, deps, store, do_output,
   532                       verbose, pide, numa_node, queue.command_timings(name))
   533                   loop(pending, running + (name -> (ancestor_heaps, job)), results)
   534                 }
   535                 else {
   536                   progress.echo(name + " CANCELLED")
   537                   loop(pending - name, running,
   538                     results + (name -> Result(false, heap_stamp, None, info)))
   539                 }
   540               case None => sleep(); loop(pending, running, results)
   541             }
   542             ///}}}
   543           case None => sleep(); loop(pending, running, results)
   544         }
   545       }
   546     }
   547 
   548 
   549     /* build results */
   550 
   551     val results0 =
   552       if (deps.is_empty) {
   553         progress.echo(Output.warning_text("Nothing to build"))
   554         Map.empty[String, Result]
   555       }
   556       else loop(queue, Map.empty, Map.empty)
   557 
   558     val results =
   559       new Results(
   560         (for ((name, result) <- results0.iterator)
   561           yield (name, (result.process, result.info))).toMap)
   562 
   563     if (results.rc != 0 && (verbose || !no_build)) {
   564       val unfinished =
   565         (for {
   566           name <- results.sessions.iterator
   567           if !results(name).ok
   568          } yield name).toList.sorted
   569       progress.echo("Unfinished session(s): " + commas(unfinished))
   570     }
   571 
   572 
   573     /* global browser info */
   574 
   575     if (!no_build) {
   576       val browser_chapters =
   577         (for {
   578           (name, result) <- results0.iterator
   579           if result.ok
   580           info = full_sessions(name)
   581           if info.options.bool("browser_info")
   582         } yield (info.chapter, (name, info.description))).toList.groupBy(_._1).
   583             map({ case (chapter, es) => (chapter, es.map(_._2)) }).filterNot(_._2.isEmpty)
   584 
   585       for ((chapter, entries) <- browser_chapters)
   586         Present.update_chapter_index(store.browser_info, chapter, entries)
   587 
   588       if (browser_chapters.nonEmpty) Present.make_global_index(store.browser_info)
   589     }
   590 
   591     results
   592   }
   593 
   594 
   595   /* Isabelle tool wrapper */
   596 
   597   val isabelle_tool = Isabelle_Tool("build", "build and manage Isabelle sessions", args =>
   598   {
   599     val build_options = Word.explode(Isabelle_System.getenv("ISABELLE_BUILD_OPTIONS"))
   600 
   601     var select_dirs: List[Path] = Nil
   602     var numa_shuffling = false
   603     var pide = false
   604     var requirements = false
   605     var exclude_session_groups: List[String] = Nil
   606     var all_sessions = false
   607     var build_heap = false
   608     var clean_build = false
   609     var dirs: List[Path] = Nil
   610     var session_groups: List[String] = Nil
   611     var max_jobs = 1
   612     var check_keywords: Set[String] = Set.empty
   613     var list_files = false
   614     var no_build = false
   615     var options = (Options.init() /: build_options)(_ + _)
   616     var system_mode = false
   617     var verbose = false
   618     var exclude_sessions: List[String] = Nil
   619 
   620     val getopts = Getopts("""
   621 Usage: isabelle build [OPTIONS] [SESSIONS ...]
   622 
   623   Options are:
   624     -D DIR       include session directory and select its sessions
   625     -N           cyclic shuffling of NUMA CPU nodes (performance tuning)
   626     -P           build via PIDE protocol
   627     -R           operate on requirements of selected sessions
   628     -X NAME      exclude sessions from group NAME and all descendants
   629     -a           select all sessions
   630     -b           build heap images
   631     -c           clean build
   632     -d DIR       include session directory
   633     -g NAME      select session group NAME
   634     -j INT       maximum number of parallel jobs (default 1)
   635     -k KEYWORD   check theory sources for conflicts with proposed keywords
   636     -l           list session source files
   637     -n           no build -- test dependencies only
   638     -o OPTION    override Isabelle system OPTION (via NAME=VAL or NAME)
   639     -s           system build mode: produce output in ISABELLE_HOME
   640     -v           verbose
   641     -x NAME      exclude session NAME and all descendants
   642 
   643   Build and manage Isabelle sessions, depending on implicit settings:
   644 
   645 """ + Library.prefix_lines("  ", Build_Log.Settings.show()) + "\n",
   646       "D:" -> (arg => select_dirs = select_dirs ::: List(Path.explode(arg))),
   647       "N" -> (_ => numa_shuffling = true),
   648       "P" -> (_ => pide = true),
   649       "R" -> (_ => requirements = true),
   650       "X:" -> (arg => exclude_session_groups = exclude_session_groups ::: List(arg)),
   651       "a" -> (_ => all_sessions = true),
   652       "b" -> (_ => build_heap = true),
   653       "c" -> (_ => clean_build = true),
   654       "d:" -> (arg => dirs = dirs ::: List(Path.explode(arg))),
   655       "g:" -> (arg => session_groups = session_groups ::: List(arg)),
   656       "j:" -> (arg => max_jobs = Value.Int.parse(arg)),
   657       "k:" -> (arg => check_keywords = check_keywords + arg),
   658       "l" -> (_ => list_files = true),
   659       "n" -> (_ => no_build = true),
   660       "o:" -> (arg => options = options + arg),
   661       "s" -> (_ => system_mode = true),
   662       "v" -> (_ => verbose = true),
   663       "x:" -> (arg => exclude_sessions = exclude_sessions ::: List(arg)))
   664 
   665     val sessions = getopts(args)
   666 
   667     val progress = new Console_Progress(verbose = verbose)
   668 
   669     val start_date = Date.now()
   670 
   671     if (verbose) {
   672       progress.echo(
   673         "Started at " + Build_Log.print_date(start_date) +
   674           " (" + Isabelle_System.getenv("ML_IDENTIFIER") + " on " + Isabelle_System.hostname() +")")
   675       progress.echo(Build_Log.Settings.show() + "\n")
   676     }
   677 
   678     val results =
   679       progress.interrupt_handler {
   680         build(options, progress,
   681           build_heap = build_heap,
   682           clean_build = clean_build,
   683           dirs = dirs,
   684           select_dirs = select_dirs,
   685           numa_shuffling = NUMA.enabled_warning(numa_shuffling),
   686           max_jobs = max_jobs,
   687           list_files = list_files,
   688           check_keywords = check_keywords,
   689           no_build = no_build,
   690           system_mode = system_mode,
   691           verbose = verbose,
   692           pide = pide,
   693           requirements = requirements,
   694           all_sessions = all_sessions,
   695           exclude_session_groups = exclude_session_groups,
   696           exclude_sessions = exclude_sessions,
   697           session_groups = session_groups,
   698           sessions = sessions)
   699       }
   700     val end_date = Date.now()
   701     val elapsed_time = end_date.time - start_date.time
   702 
   703     if (verbose) {
   704       progress.echo("\nFinished at " + Build_Log.print_date(end_date))
   705     }
   706 
   707     val total_timing =
   708       (Timing.zero /: results.sessions.iterator.map(a => results(a).timing))(_ + _).
   709         copy(elapsed = elapsed_time)
   710     progress.echo(total_timing.message_resources)
   711 
   712     sys.exit(results.rc)
   713   })
   714 }