/* Title: Pure/System/build.scala
Author: Makarius
Build and manage Isabelle sessions.
*/
package isabelle
import java.io.{BufferedInputStream, FileInputStream,
BufferedReader, InputStreamReader, IOException}
import java.util.zip.GZIPInputStream
import scala.collection.mutable
import scala.annotation.tailrec
object Build
{
/** session information **/
object Session
{
/* Info */
sealed case class Info(
groups: List[String],
dir: Path,
parent: Option[String],
description: String,
options: Options,
theories: List[(Options, List[Path])],
files: List[Path],
entry_digest: SHA1.Digest)
/* Queue */
object Queue
{
val empty: Queue = new Queue()
}
final class Queue private(graph: Graph[String, Info] = Graph.string)
extends PartialFunction[String, Info]
{
def apply(name: String): Info = graph.get_node(name)
def isDefinedAt(name: String): Boolean = graph.defined(name)
def is_inner(name: String): Boolean = !graph.is_maximal(name)
def is_empty: Boolean = graph.is_empty
def + (name: String, info: Info): Queue =
new Queue(
try { graph.new_node(name, info).add_deps_acyclic(name, info.parent.toList) }
catch {
case _: Graph.Duplicate[_] => error("Duplicate session: " + quote(name))
case exn: Graph.Cycles[_] =>
error(cat_lines(exn.cycles.map(cycle =>
"Cyclic session dependency of " +
cycle.map(c => quote(c.toString)).mkString(" via "))))
})
def - (name: String): Queue = new Queue(graph.del_node(name))
def required(groups: List[String], names: List[String]): Queue =
{
val selected_group = groups.toSet
val selected_name = names.toSet
val selected =
graph.keys.filter(name =>
selected_name(name) || apply(name).groups.exists(selected_group)).toList
new Queue(graph.restrict(graph.all_preds(selected).toSet))
}
def dequeue(skip: String => Boolean): Option[(String, Info)] =
{
val it = graph.entries.dropWhile(
{ case (name, (_, (deps, _))) => !deps.isEmpty || skip(name) })
if (it.hasNext) { val (name, (info, _)) = it.next; Some((name, info)) }
else None
}
def topological_order: List[(String, Info)] =
graph.topological_order.map(name => (name, graph.get_node(name)))
}
}
/* parsing */
private case class Session_Entry(
base_name: String,
this_name: Boolean,
groups: List[String],
path: Option[String],
parent: Option[String],
description: String,
options: List[Options.Spec],
theories: List[(List[Options.Spec], List[String])],
files: List[String])
private object Parser extends Parse.Parser
{
val SESSION = "session"
val IN = "in"
val DESCRIPTION = "description"
val OPTIONS = "options"
val THEORIES = "theories"
val FILES = "files"
val syntax =
Outer_Syntax.empty + "!" + "(" + ")" + "+" + "," + "=" + "[" + "]" +
SESSION + IN + DESCRIPTION + OPTIONS + THEORIES + FILES
val session_entry: Parser[Session_Entry] =
{
val session_name = atom("session name", _.is_name)
val option =
name ~ opt(keyword("=") ~! name ^^ { case _ ~ x => x }) ^^ { case x ~ y => (x, y) }
val options = keyword("[") ~> repsep(option, keyword(",")) <~ keyword("]")
val theories =
keyword(THEORIES) ~! ((options | success(Nil)) ~ rep1(theory_name)) ^^
{ case _ ~ (x ~ y) => (x, y) }
((keyword(SESSION) ~! session_name) ^^ { case _ ~ x => x }) ~
(keyword("!") ^^^ true | success(false)) ~
(keyword("(") ~! (rep1(name) <~ keyword(")")) ^^ { case _ ~ x => x } | success(Nil)) ~
(opt(keyword(IN) ~! path ^^ { case _ ~ x => x })) ~
(keyword("=") ~> opt(session_name <~ keyword("+"))) ~
(keyword(DESCRIPTION) ~! text ^^ { case _ ~ x => x } | success("")) ~
(keyword(OPTIONS) ~! options ^^ { case _ ~ x => x } | success(Nil)) ~
rep(theories) ~
(keyword(FILES) ~! rep1(path) ^^ { case _ ~ x => x } | success(Nil)) ^^
{ case a ~ b ~ c ~ d ~ e ~ f ~ g ~ h ~ i => Session_Entry(a, b, c, d, e, f, g, h, i) }
}
def parse_entries(root: Path): List[Session_Entry] =
{
val toks = syntax.scan(File.read(root))
parse_all(rep(session_entry), Token.reader(toks, root.implode)) match {
case Success(result, _) => result
case bad => error(bad.toString)
}
}
}
/* find sessions */
private val ROOT = Path.explode("ROOT")
private val SESSIONS = Path.explode("etc/sessions")
private def is_pure(name: String): Boolean = name == "RAW" || name == "Pure"
private def sessions_root(options: Options, dir: Path, root: Path, queue: Session.Queue)
: Session.Queue =
{
(queue /: Parser.parse_entries(root))((queue1, entry) =>
try {
if (entry.base_name == "") error("Bad session name")
val full_name =
if (is_pure(entry.base_name)) {
if (entry.parent.isDefined) error("Illegal parent session")
else entry.base_name
}
else
entry.parent match {
case Some(parent_name) if queue1.isDefinedAt(parent_name) =>
val full_name =
if (entry.this_name) entry.base_name
else parent_name + "-" + entry.base_name
full_name
case _ => error("Bad parent session")
}
val path =
entry.path match {
case Some(p) => Path.explode(p)
case None => Path.basic(entry.base_name)
}
val session_options = options ++ entry.options
val theories =
entry.theories.map({ case (opts, thys) =>
(session_options ++ opts, thys.map(Path.explode(_))) })
val files = entry.files.map(Path.explode(_))
val entry_digest =
SHA1.digest((full_name, entry.parent, entry.options, entry.theories).toString)
val info =
Session.Info(entry.groups, dir + path, entry.parent, entry.description,
session_options, theories, files, entry_digest)
queue1 + (full_name, info)
}
catch {
case ERROR(msg) =>
error(msg + "\nThe error(s) above occurred in session entry " +
quote(entry.base_name) + Position.str_of(root.position))
})
}
private def sessions_dir(options: Options, strict: Boolean, dir: Path, queue: Session.Queue)
: Session.Queue =
{
val root = dir + ROOT
if (root.is_file) sessions_root(options, dir, root, queue)
else if (strict) error("Bad session root file: " + root.toString)
else queue
}
private def sessions_catalog(options: Options, dir: Path, catalog: Path, queue: Session.Queue)
: Session.Queue =
{
val dirs =
split_lines(File.read(catalog)).filterNot(line => line == "" || line.startsWith("#"))
(queue /: dirs)((queue1, dir1) =>
try {
val dir2 = dir + Path.explode(dir1)
if (dir2.is_dir) sessions_dir(options, true, dir2, queue1)
else error("Bad session directory: " + dir2.toString)
}
catch {
case ERROR(msg) =>
error(msg + "\nThe error(s) above occurred in session catalog " + catalog.toString)
})
}
def find_sessions(options: Options, more_dirs: List[Path],
all_sessions: Boolean, session_groups: List[String], sessions: List[String]): Session.Queue =
{
var queue = Session.Queue.empty
for (dir <- Isabelle_System.components()) {
queue = sessions_dir(options, false, dir, queue)
val catalog = dir + SESSIONS
if (catalog.is_file) queue = sessions_catalog(options, dir, catalog, queue)
}
for (dir <- more_dirs) queue = sessions_dir(options, true, dir, queue)
sessions.filter(name => !queue.isDefinedAt(name)) match {
case Nil =>
case bad => error("Undefined session(s): " + commas_quote(bad))
}
if (all_sessions) queue else queue.required(session_groups, sessions)
}
/** build **/
private def echo(msg: String) { java.lang.System.out.println(msg) }
private def sleep(): Unit = Thread.sleep(500)
/* source dependencies */
sealed case class Node(
loaded_theories: Set[String],
sources: List[(Path, SHA1.Digest)])
sealed case class Deps(deps: Map[String, Node])
{
def is_empty: Boolean = deps.isEmpty
def sources(name: String): List[SHA1.Digest] = deps(name).sources.map(_._2)
}
def dependencies(verbose: Boolean, queue: Session.Queue): Deps =
Deps((Map.empty[String, Node] /: queue.topological_order)(
{ case (deps, (name, info)) =>
val preloaded =
info.parent match {
case None => Set.empty[String]
case Some(parent) => deps(parent).loaded_theories
}
val thy_info = new Thy_Info(new Thy_Load(preloaded))
if (verbose) {
val groups =
if (info.groups.isEmpty) ""
else info.groups.mkString(" (", " ", ")")
echo("Checking " + name + groups + " ...")
}
val thy_deps =
thy_info.dependencies(
info.theories.map(_._2).flatten.
map(thy => Document.Node.Name(info.dir + Thy_Load.thy_path(thy))))
val loaded_theories = preloaded ++ thy_deps.map(_._1.theory)
val all_files =
thy_deps.map({ case (n, h) =>
val thy = Path.explode(n.node).expand
val uses =
h match {
case Exn.Res(d) =>
d.uses.map(p => (Path.explode(n.dir) + Path.explode(p._1)).expand)
case _ => Nil
}
thy :: uses
}).flatten ::: info.files.map(file => info.dir + file)
val sources =
try { all_files.map(p => (p, SHA1.digest(p))) }
catch {
case ERROR(msg) =>
error(msg + "\nThe error(s) above occurred in session " + quote(name))
}
deps + (name -> Node(loaded_theories, sources))
}))
/* jobs */
private class Job(dir: Path, env: Map[String, String], script: String, args: String,
output: Path, do_output: Boolean)
{
private val args_file = File.tmp_file("args")
private val env1 = env + ("ARGS_FILE" -> Isabelle_System.posix_path(args_file.getPath))
File.write(args_file, args)
private val (thread, result) =
Simple_Thread.future("build") { Isabelle_System.bash_env(dir.file, env1, script) }
def terminate: Unit = thread.interrupt
def is_finished: Boolean = result.is_finished
def join: (String, String, Int) = { val res = result.join; args_file.delete; res }
def output_path: Option[Path] = if (do_output) Some(output) else None
}
private def start_job(name: String, info: Session.Info, output: Path, do_output: Boolean,
options: Options, verbose: Boolean, browser_info: Path): Job =
{
// global browser info dir
if (options.bool("browser_info") && !(browser_info + Path.explode("index.html")).is_file)
{
browser_info.file.mkdirs()
File.copy(Path.explode("~~/lib/logo/isabelle.gif"),
browser_info + Path.explode("isabelle.gif"))
File.write(browser_info + Path.explode("index.html"),
File.read(Path.explode("~~/lib/html/library_index_header.template")) +
File.read(Path.explode("~~/lib/html/library_index_content.template")) +
File.read(Path.explode("~~/lib/html/library_index_footer.template")))
}
val parent = info.parent.getOrElse("")
val env =
Map("INPUT" -> parent, "TARGET" -> name, "OUTPUT" -> Isabelle_System.standard_path(output))
val script =
if (is_pure(name)) {
if (do_output) "./build " + name + " \"$OUTPUT\""
else """ rm -f "$OUTPUT"; ./build """ + name
}
else {
"""
. "$ISABELLE_HOME/lib/scripts/timestart.bash"
""" +
(if (do_output)
"""
"$ISABELLE_PROCESS" -e "Build.build \"$ARGS_FILE\";" -q -w "$INPUT" "$OUTPUT"
"""
else
"""
rm -f "$OUTPUT"; "$ISABELLE_PROCESS" -e "Build.build \"$ARGS_FILE\";" -r -q "$INPUT"
""") +
"""
RC="$?"
. "$ISABELLE_HOME/lib/scripts/timestop.bash"
if [ "$RC" -eq 0 ]; then
echo "Finished $TARGET ($TIMES_REPORT)" >&2
fi
exit "$RC"
"""
}
val args_xml =
{
import XML.Encode._
pair(bool, pair(Options.encode, pair(bool, pair(Path.encode, pair(string,
pair(string, list(pair(Options.encode, list(Path.encode)))))))))(
(do_output, (options, (verbose, (browser_info, (parent,
(name, info.theories)))))))
}
new Job(info.dir, env, script, YXML.string_of_body(args_xml), output, do_output)
}
/* log files and corresponding heaps */
private val LOG = Path.explode("log")
private def log(name: String): Path = LOG + Path.basic(name)
private def log_gz(name: String): Path = log(name).ext("gz")
private def sources_stamp(digests: List[SHA1.Digest]): String =
digests.map(_.toString).sorted.mkString("sources: ", " ", "")
private def heap_stamp(output: Option[Path]): String =
{
"heap: " +
(output match {
case Some(path) =>
val file = path.file
if (file.isFile) file.length.toString + " " + file.lastModified.toString
else "-"
case None => "-"
})
}
private def check_stamps(dir: Path, name: String): Option[(String, Boolean)] =
{
val file = (dir + log_gz(name)).file
if (file.isFile) {
val stream = new GZIPInputStream (new BufferedInputStream(new FileInputStream(file)))
val reader = new BufferedReader(new InputStreamReader(stream, Standard_System.charset))
val (s, h) = try { (reader.readLine, reader.readLine) } finally { reader.close }
if (s != null && s.startsWith("sources: ") && h != null && h.startsWith("heap: ") &&
h == heap_stamp(Some(dir + Path.basic(name)))) Some((s, h != "heap: -"))
else None
}
else None
}
/* build */
def build(
all_sessions: Boolean = false,
build_heap: Boolean = false,
more_dirs: List[Path] = Nil,
fresh_build: Boolean,
session_groups: List[String] = Nil,
max_jobs: Int = 1,
no_build: Boolean = false,
build_options: List[String] = Nil,
system_mode: Boolean = false,
verbose: Boolean = false,
sessions: List[String] = Nil): Int =
{
val options = (Options.init() /: build_options)(_.define_simple(_))
val queue = find_sessions(options, more_dirs, all_sessions, session_groups, sessions)
val deps = dependencies(verbose, queue)
def make_stamp(name: String): String =
sources_stamp(queue(name).entry_digest :: deps.sources(name))
val (input_dirs, output_dir, browser_info) =
if (system_mode) {
val output_dir = Path.explode("~~/heaps/$ML_IDENTIFIER")
(List(output_dir), output_dir, Path.explode("~~/browser_info"))
}
else {
val output_dir = Path.explode("$ISABELLE_OUTPUT")
(output_dir :: Isabelle_System.find_logics_dirs(), output_dir,
Path.explode("$ISABELLE_BROWSER_INFO"))
}
// prepare log dir
(output_dir + LOG).file.mkdirs()
// scheduler loop
@tailrec def loop(
pending: Session.Queue,
running: Map[String, Job],
results: Map[String, (Boolean, Int)]): Map[String, (Boolean, Int)] =
{
if (pending.is_empty) results
else
running.find({ case (_, job) => job.is_finished }) match {
case Some((name, job)) =>
// finish job
val (out, err, rc) = job.join
echo(Library.trim_line(err))
if (rc == 0) {
val sources = make_stamp(name)
val heap = heap_stamp(job.output_path)
(output_dir + log(name)).file.delete
File.write_gzip(output_dir + log_gz(name), sources + "\n" + heap + "\n" + out)
}
else {
(output_dir + log_gz(name)).file.delete
File.write(output_dir + log(name), out)
echo(name + " FAILED")
echo("(see also " + log(name).file.toString + ")")
val lines = split_lines(out)
val tail = lines.drop(lines.length - 20 max 0)
echo("\n" + cat_lines(tail))
}
loop(pending - name, running - name, results + (name -> (false, rc)))
case None if (running.size < (max_jobs max 1)) =>
// check/start next job
pending.dequeue(running.isDefinedAt(_)) match {
case Some((name, info)) =>
val parent_result = info.parent.map(results(_))
val parent_current = parent_result.forall(_._1)
val parent_ok = parent_result.forall(_._2 == 0)
val output = output_dir + Path.basic(name)
val do_output = build_heap || queue.is_inner(name)
val current =
{
input_dirs.find(dir => (dir + log_gz(name)).is_file) match {
case Some(dir) =>
check_stamps(dir, name) match {
case Some((s, h)) => s == make_stamp(name) && (h || !do_output)
case None => false
}
case None => false
}
}
val all_current = current && parent_current && !fresh_build
if (all_current)
loop(pending - name, running, results + (name -> (true, 0)))
else if (no_build)
loop(pending - name, running, results + (name -> (false, 1)))
else if (parent_ok) {
echo((if (do_output) "Building " else "Running ") + name + " ...")
val job =
start_job(name, info, output, do_output, info.options, verbose, browser_info)
loop(pending, running + (name -> job), results)
}
else {
echo(name + " CANCELLED")
loop(pending - name, running, results + (name -> (false, 1)))
}
case None => sleep(); loop(pending, running, results)
}
case None => sleep(); loop(pending, running, results)
}
}
val results =
if (deps.is_empty) {
echo("### Nothing to build")
Map.empty
}
else loop(queue, Map.empty, Map.empty)
val rc = (0 /: results)({ case (rc1, (_, (_, rc2))) => rc1 max rc2 })
if (rc != 0 && (verbose || !no_build)) {
val unfinished =
(for ((name, (_, r)) <- results.iterator if r != 0) yield name).toList.sorted
echo("Unfinished session(s): " + commas(unfinished))
}
rc
}
/* command line entry point */
def main(args: Array[String])
{
Command_Line.tool {
args.toList match {
case
Properties.Value.Boolean(all_sessions) ::
Properties.Value.Boolean(build_heap) ::
Properties.Value.Boolean(fresh_build) ::
Properties.Value.Int(max_jobs) ::
Properties.Value.Boolean(no_build) ::
Properties.Value.Boolean(system_mode) ::
Properties.Value.Boolean(verbose) ::
Command_Line.Chunks(more_dirs, session_groups, build_options, sessions) =>
build(all_sessions, build_heap, more_dirs.map(Path.explode), fresh_build,
session_groups, max_jobs, no_build, build_options, system_mode, verbose, sessions)
case _ => error("Bad arguments:\n" + cat_lines(args))
}
}
}
}