/* Title: Pure/Thy/sessions.scala
Author: Makarius
Cumulative session information.
*/
package isabelle
import java.io.{File => JFile}
import java.nio.ByteBuffer
import java.nio.channels.FileChannel
import java.nio.file.StandardOpenOption
import scala.collection.SortedSet
import scala.collection.mutable
object Sessions
{
/* base info and source dependencies */
val DRAFT = "Draft"
def is_pure(name: String): Boolean = name == Thy_Header.PURE
object Known
{
val empty: Known = Known()
def make(local_dir: Path, bases: List[Base],
theories: List[Document.Node.Name] = Nil,
loaded_files: List[(String, List[Path])] = Nil): Known =
{
def bases_iterator(local: Boolean) =
for {
base <- bases.iterator
(_, name) <- (if (local) base.known.theories_local else base.known.theories).iterator
} yield name
def local_theories_iterator =
{
val local_path = local_dir.canonical_file.toPath
theories.iterator.filter(name => name.path.canonical_file.toPath.startsWith(local_path))
}
val known_theories =
(Map.empty[String, Document.Node.Name] /: (bases_iterator(false) ++ theories.iterator))({
case (known, name) =>
known.get(name.theory) match {
case Some(name1) if name != name1 =>
error("Duplicate theory " + quote(name.node) + " vs. " + quote(name1.node))
case _ => known + (name.theory -> name)
}
})
val known_theories_local =
(Map.empty[String, Document.Node.Name] /:
(bases_iterator(true) ++ local_theories_iterator))({
case (known, name) => known + (name.theory -> name)
})
val known_files =
(Map.empty[JFile, List[Document.Node.Name]] /:
(bases_iterator(true) ++ bases_iterator(false) ++ theories.iterator))({
case (known, name) =>
val file = name.path.canonical_file
val theories1 = known.getOrElse(file, Nil)
if (theories1.exists(name1 => name.node == name1.node && name.theory == name1.theory))
known
else known + (file -> (name :: theories1))
})
val known_loaded_files =
(loaded_files.toMap /: bases.map(base => base.known.loaded_files))(_ ++ _)
Known(known_theories, known_theories_local,
known_files.iterator.map(p => (p._1, p._2.reverse)).toMap,
known_loaded_files)
}
}
sealed case class Known(
theories: Map[String, Document.Node.Name] = Map.empty,
theories_local: Map[String, Document.Node.Name] = Map.empty,
files: Map[JFile, List[Document.Node.Name]] = Map.empty,
loaded_files: Map[String, List[Path]] = Map.empty)
{
def platform_path: Known =
copy(theories = for ((a, b) <- theories) yield (a, b.map(File.platform_path(_))),
theories_local = for ((a, b) <- theories_local) yield (a, b.map(File.platform_path(_))),
files = for ((a, b) <- files) yield (a, b.map(c => c.map(File.platform_path(_)))))
def standard_path: Known =
copy(theories = for ((a, b) <- theories) yield (a, b.map(File.standard_path(_))),
theories_local = for ((a, b) <- theories_local) yield (a, b.map(File.standard_path(_))),
files = for ((a, b) <- files) yield (a, b.map(c => c.map(File.standard_path(_)))))
def get_file(file: JFile, bootstrap: Boolean = false): Option[Document.Node.Name] =
{
val res = files.getOrElse(File.canonical(file), Nil).headOption
if (bootstrap) res.map(_.map_theory(Thy_Header.bootstrap_name(_))) else res
}
}
object Base
{
def bootstrap(global_theories: Map[String, String]): Base =
Base(
global_theories = global_theories,
overall_syntax = Thy_Header.bootstrap_syntax)
}
sealed case class Base(
pos: Position.T = Position.none,
global_theories: Map[String, String] = Map.empty,
loaded_theories: Graph[String, Outer_Syntax] = Graph.string,
known: Known = Known.empty,
overall_syntax: Outer_Syntax = Outer_Syntax.empty,
imported_sources: List[(Path, SHA1.Digest)] = Nil,
sources: List[(Path, SHA1.Digest)] = Nil,
session_graph: Graph_Display.Graph = Graph_Display.empty_graph,
errors: List[String] = Nil,
imports: Option[Base] = None)
{
def platform_path: Base = copy(known = known.platform_path)
def standard_path: Base = copy(known = known.standard_path)
def loaded_theory(name: String): Boolean = loaded_theories.defined(name)
def loaded_theory(name: Document.Node.Name): Boolean = loaded_theory(name.theory)
def loaded_theory_syntax(name: String): Option[Outer_Syntax] =
if (loaded_theory(name)) Some(loaded_theories.get_node(name)) else None
def loaded_theory_syntax(name: Document.Node.Name): Option[Outer_Syntax] =
loaded_theory_syntax(name.theory)
def node_syntax(nodes: Document.Nodes, name: Document.Node.Name): Outer_Syntax =
nodes(name).syntax orElse loaded_theory_syntax(name) getOrElse overall_syntax
def known_theory(name: String): Option[Document.Node.Name] =
known.theories.get(name)
def dest_known_theories: List[(String, String)] =
for ((theory, node_name) <- known.theories.toList)
yield (theory, node_name.node)
def get_imports: Base = imports getOrElse Base.bootstrap(global_theories)
}
sealed case class Deps(session_bases: Map[String, Base], all_known: Known)
{
def is_empty: Boolean = session_bases.isEmpty
def apply(name: String): Base = session_bases(name)
def imported_sources(name: String): List[SHA1.Digest] =
session_bases(name).imported_sources.map(_._2)
def sources(name: String): List[SHA1.Digest] =
session_bases(name).sources.map(_._2)
def errors: List[String] =
(for {
(name, base) <- session_bases.iterator
if base.errors.nonEmpty
} yield cat_lines(base.errors) +
"\nThe error(s) above occurred in session " + quote(name) + Position.here(base.pos)
).toList
def check_errors: Deps =
errors match {
case Nil => this
case errs => error(cat_lines(errs))
}
}
def deps(sessions: T,
progress: Progress = No_Progress,
inlined_files: Boolean = false,
verbose: Boolean = false,
list_files: Boolean = false,
check_keywords: Set[String] = Set.empty,
global_theories: Map[String, String] = Map.empty): Deps =
{
var cache_sources = Map.empty[JFile, SHA1.Digest]
def check_sources(paths: List[Path]): List[(Path, SHA1.Digest)] =
{
for {
path <- paths
file = path.file
if cache_sources.isDefinedAt(file) || file.isFile
}
yield {
cache_sources.get(file) match {
case Some(digest) => (path, digest)
case None =>
val digest = SHA1.digest(file)
cache_sources = cache_sources + (file -> digest)
(path, digest)
}
}
}
val session_bases =
(Map.empty[String, Base] /: sessions.imports_topological_order)({
case (session_bases, info) =>
if (progress.stopped) throw Exn.Interrupt()
try {
val parent_base: Sessions.Base =
info.parent match {
case None => Base.bootstrap(global_theories)
case Some(parent) => session_bases(parent)
}
val imports_base: Sessions.Base =
parent_base.copy(known =
Known.make(info.dir, parent_base :: info.imports.map(session_bases(_))))
val resources = new Resources(imports_base)
if (verbose || list_files) {
val groups =
if (info.groups.isEmpty) ""
else info.groups.mkString(" (", " ", ")")
progress.echo("Session " + info.chapter + "/" + info.name + groups)
}
val thy_deps =
resources.thy_info.dependencies(
for { (_, thys) <- info.theories; (thy, pos) <- thys }
yield (resources.import_name(info.name, info.dir.implode, thy), pos))
val overall_syntax = thy_deps.overall_syntax
val theory_files = thy_deps.names.map(_.path)
val loaded_files =
if (inlined_files) {
if (Sessions.is_pure(info.name)) {
(Thy_Header.PURE -> resources.pure_files(overall_syntax, info.dir)) ::
thy_deps.loaded_files.filterNot(p => p._1 == Thy_Header.PURE)
}
else thy_deps.loaded_files
}
else Nil
val session_files =
(theory_files ::: loaded_files.flatMap(_._2) :::
info.document_files.map(file => info.dir + file._1 + file._2)).map(_.expand)
val imported_files = if (inlined_files) thy_deps.imported_files else Nil
if (list_files)
progress.echo(cat_lines(session_files.map(_.implode).sorted.map(" " + _)))
if (check_keywords.nonEmpty) {
Check_Keywords.check_keywords(
progress, overall_syntax.keywords, check_keywords, theory_files)
}
val session_graph: Graph_Display.Graph =
{
def session_node(name: String): Graph_Display.Node =
Graph_Display.Node("[" + name + "]", "session." + name)
def node(name: Document.Node.Name): Graph_Display.Node =
{
val qualifier = resources.theory_qualifier(name)
if (qualifier == info.name)
Graph_Display.Node(name.theory_base_name, "theory." + name.theory)
else session_node(qualifier)
}
val imports_subgraph =
sessions.imports_graph.restrict(
sessions.imports_graph.all_preds(info.parent.toList ::: info.imports).toSet)
val graph0 =
(Graph_Display.empty_graph /: imports_subgraph.topological_order)(
{ case (g, session) =>
val a = session_node(session)
val bs = imports_subgraph.imm_preds(session).toList.map(session_node(_))
((g /: (a :: bs))(_.default_node(_, Nil)) /: bs)(_.add_edge(_, a)) })
(graph0 /: thy_deps.entries)(
{ case (g, entry) =>
val a = node(entry.name)
val bs =
entry.header.imports.map({ case (name, _) => node(name) }).
filterNot(_ == a)
((g /: (a :: bs))(_.default_node(_, Nil)) /: bs)(_.add_edge(_, a)) })
}
val known =
Known.make(info.dir, List(imports_base),
theories = thy_deps.names,
loaded_files = loaded_files)
val sources_errors =
for (p <- session_files if !p.is_file) yield "No such file: " + p
val base =
Base(
pos = info.pos,
global_theories = global_theories,
loaded_theories = thy_deps.loaded_theories,
known = known,
overall_syntax = overall_syntax,
imported_sources = check_sources(imported_files),
sources = check_sources(session_files),
session_graph = session_graph,
errors = thy_deps.errors ::: sources_errors,
imports = Some(imports_base))
session_bases + (info.name -> base)
}
catch {
case ERROR(msg) =>
cat_error(msg, "The error(s) above occurred in session " +
quote(info.name) + Position.here(info.pos))
}
})
Deps(session_bases, Known.make(Path.current, session_bases.toList.map(_._2)))
}
def session_base_errors(
options: Options,
session: String,
dirs: List[Path] = Nil,
inlined_files: Boolean = false,
all_known: Boolean = false): (List[String], Base) =
{
val full_sessions = load(options, dirs = dirs)
val global_theories = full_sessions.global_theories
val (_, selected_sessions) = full_sessions.selection(Selection(sessions = List(session)))
val sessions: T = if (all_known) full_sessions else selected_sessions
val deps =
Sessions.deps(sessions, inlined_files = inlined_files, global_theories = global_theories)
val base = if (all_known) deps(session).copy(known = deps.all_known) else deps(session)
(deps.errors, base)
}
def session_base(
options: Options,
session: String,
dirs: List[Path] = Nil,
inlined_files: Boolean = false,
all_known: Boolean = false): Base =
{
val (errs, base) =
session_base_errors(options, session, dirs = dirs,
inlined_files = inlined_files, all_known = all_known)
if (errs.isEmpty) base else error(cat_lines(errs))
}
/* cumulative session info */
sealed case class Info(
name: String,
chapter: String,
select: Boolean,
pos: Position.T,
groups: List[String],
dir: Path,
parent: Option[String],
description: String,
options: Options,
imports: List[String],
theories: List[(Options, List[(String, Position.T)])],
global_theories: List[String],
document_files: List[(Path, Path)],
meta_digest: SHA1.Digest)
{
def timeout: Time = Time.seconds(options.real("timeout") * options.real("timeout_scale"))
}
object Selection
{
val empty: Selection = Selection()
val all: Selection = Selection(all_sessions = true)
}
sealed case class Selection(
requirements: Boolean = false,
all_sessions: Boolean = false,
base_sessions: List[String] = Nil,
exclude_session_groups: List[String] = Nil,
exclude_sessions: List[String] = Nil,
session_groups: List[String] = Nil,
sessions: List[String] = Nil)
{
def ++ (other: Selection): Selection =
Selection(
requirements = requirements || other.requirements,
all_sessions = all_sessions || other.all_sessions,
base_sessions = Library.merge(base_sessions, other.base_sessions),
exclude_session_groups = Library.merge(exclude_session_groups, other.exclude_session_groups),
exclude_sessions = Library.merge(exclude_sessions, other.exclude_sessions),
session_groups = Library.merge(session_groups, other.session_groups),
sessions = Library.merge(sessions, other.sessions))
def apply(graph: Graph[String, Info]): (List[String], Graph[String, Info]) =
{
val bad_sessions =
SortedSet((base_sessions ::: exclude_sessions ::: sessions).
filterNot(graph.defined(_)): _*).toList
if (bad_sessions.nonEmpty)
error("Undefined session(s): " + commas_quote(bad_sessions))
val excluded =
{
val exclude_group = exclude_session_groups.toSet
val exclude_group_sessions =
(for {
(name, (info, _)) <- graph.iterator
if graph.get_node(name).groups.exists(exclude_group)
} yield name).toList
graph.all_succs(exclude_group_sessions ::: exclude_sessions).toSet
}
val pre_selected =
{
if (all_sessions) graph.keys
else {
val select_group = session_groups.toSet
val select = sessions.toSet ++ graph.all_succs(base_sessions)
(for {
(name, (info, _)) <- graph.iterator
if info.select || select(name) || graph.get_node(name).groups.exists(select_group)
} yield name).toList
}
}.filterNot(excluded)
val selected =
if (requirements) (graph.all_preds(pre_selected).toSet -- pre_selected).toList
else pre_selected
(selected, graph.restrict(graph.all_preds(selected).toSet))
}
}
def make(infos: Traversable[(String, Info)]): T =
{
def add_edges(graph: Graph[String, Info], kind: String, edges: Info => Traversable[String])
: Graph[String, Info] =
{
def add_edge(pos: Position.T, name: String, g: Graph[String, Info], parent: String) =
{
if (!g.defined(parent))
error("Bad " + kind + " session " + quote(parent) + " for " +
quote(name) + Position.here(pos))
try { g.add_edge_acyclic(parent, name) }
catch {
case exn: Graph.Cycles[_] =>
error(cat_lines(exn.cycles.map(cycle =>
"Cyclic session dependency of " +
cycle.map(c => quote(c.toString)).mkString(" via "))) + Position.here(pos))
}
}
(graph /: graph.iterator) {
case (g, (name, (info, _))) => (g /: edges(info))(add_edge(info.pos, name, _, _))
}
}
val graph0 =
(Graph.string[Info] /: infos) {
case (graph, (name, info)) =>
if (graph.defined(name))
error("Duplicate session " + quote(name) + Position.here(info.pos) +
Position.here(graph.get_node(name).pos))
else graph.new_node(name, info)
}
val graph1 = add_edges(graph0, "parent", _.parent)
val graph2 = add_edges(graph1, "imports", _.imports)
new T(graph1, graph2)
}
final class T private[Sessions](
val build_graph: Graph[String, Info],
val imports_graph: Graph[String, Info])
{
def apply(name: String): Info = imports_graph.get_node(name)
def get(name: String): Option[Info] =
if (imports_graph.defined(name)) Some(imports_graph.get_node(name)) else None
def global_theories: Map[String, String] =
(Thy_Header.bootstrap_global_theories.toMap /:
(for {
(_, (info, _)) <- imports_graph.iterator
thy <- info.global_theories.iterator }
yield (thy, info)))({
case (global, (thy, info)) =>
val qualifier = info.name
global.get(thy) match {
case Some(qualifier1) if qualifier != qualifier1 =>
error("Duplicate global theory " + quote(thy) + Position.here(info.pos))
case _ => global + (thy -> qualifier)
}
})
def selection(select: Selection): (List[String], T) =
{
val (_, build_graph1) = select(build_graph)
val (selected, imports_graph1) = select(imports_graph)
(selected, new T(build_graph1, imports_graph1))
}
def build_ancestors(name: String): List[String] =
build_graph.all_preds(List(name)).tail.reverse
def build_descendants(names: List[String]): List[String] =
build_graph.all_succs(names)
def build_topological_order: List[Info] =
build_graph.topological_order.map(apply(_))
def imports_ancestors(name: String): List[String] =
imports_graph.all_preds(List(name)).tail.reverse
def imports_topological_order: List[Info] =
imports_graph.topological_order.map(apply(_))
override def toString: String =
imports_graph.keys_iterator.mkString("Sessions.T(", ", ", ")")
}
/* parser */
val ROOT = Path.explode("ROOT")
val ROOTS = Path.explode("ROOTS")
private val CHAPTER = "chapter"
private val SESSION = "session"
private val IN = "in"
private val DESCRIPTION = "description"
private val OPTIONS = "options"
private val SESSIONS = "sessions"
private val THEORIES = "theories"
private val GLOBAL = "global"
private val DOCUMENT_FILES = "document_files"
lazy val root_syntax =
Outer_Syntax.init() + "(" + ")" + "+" + "," + "=" + "[" + "]" + GLOBAL + IN +
(CHAPTER, Keyword.THY_DECL) +
(SESSION, Keyword.THY_DECL) +
(DESCRIPTION, Keyword.QUASI_COMMAND) +
(OPTIONS, Keyword.QUASI_COMMAND) +
(SESSIONS, Keyword.QUASI_COMMAND) +
(THEORIES, Keyword.QUASI_COMMAND) +
(DOCUMENT_FILES, Keyword.QUASI_COMMAND)
private object Parser extends Parse.Parser with Options.Parser
{
private abstract class Entry
private sealed case class Chapter(name: String) extends Entry
private sealed case class Session_Entry(
pos: Position.T,
name: String,
groups: List[String],
path: String,
parent: Option[String],
description: String,
options: List[Options.Spec],
imports: List[String],
theories: List[(List[Options.Spec], List[((String, Position.T), Boolean)])],
document_files: List[(String, String)]) extends Entry
{
def theories_no_position: List[(List[Options.Spec], List[(String, Boolean)])] =
theories.map({ case (a, b) => (a, b.map({ case ((c, _), d) => (c, d) })) })
}
private val chapter: Parser[Chapter] =
{
val chapter_name = atom("chapter name", _.is_name)
command(CHAPTER) ~! chapter_name ^^ { case _ ~ a => Chapter(a) }
}
private val session_entry: Parser[Session_Entry] =
{
val session_name = atom("session name", _.is_name)
val option =
option_name ~ opt($$$("=") ~! option_value ^^
{ case _ ~ x => x }) ^^ { case x ~ y => (x, y) }
val options = $$$("[") ~> rep1sep(option, $$$(",")) <~ $$$("]")
val global =
($$$("(") ~! $$$(GLOBAL) ~ $$$(")")) ^^ { case _ => true } | success(false)
val theory_entry =
position(theory_name) ~ global ^^ { case x ~ y => (x, y) }
val theories =
$$$(THEORIES) ~!
((options | success(Nil)) ~ rep(theory_entry)) ^^
{ case _ ~ (x ~ y) => (x, y) }
val document_files =
$$$(DOCUMENT_FILES) ~!
(($$$("(") ~! ($$$(IN) ~! (path ~ $$$(")"))) ^^
{ case _ ~ (_ ~ (x ~ _)) => x } | success("document")) ~
rep1(path)) ^^ { case _ ~ (x ~ y) => y.map((x, _)) }
command(SESSION) ~!
(position(session_name) ~
(($$$("(") ~! (rep1(name) <~ $$$(")")) ^^ { case _ ~ x => x }) | success(Nil)) ~
(($$$(IN) ~! path ^^ { case _ ~ x => x }) | success(".")) ~
($$$("=") ~!
(opt(session_name ~! $$$("+") ^^ { case x ~ _ => x }) ~
(($$$(DESCRIPTION) ~! text ^^ { case _ ~ x => x }) | success("")) ~
(($$$(OPTIONS) ~! options ^^ { case _ ~ x => x }) | success(Nil)) ~
(($$$(SESSIONS) ~! rep(session_name) ^^ { case _ ~ x => x }) | success(Nil)) ~
rep1(theories) ~
(rep(document_files) ^^ (x => x.flatten))))) ^^
{ case _ ~ ((a, pos) ~ b ~ c ~ (_ ~ (d ~ e ~ f ~ g ~ h ~ i))) =>
Session_Entry(pos, a, b, c, d, e, f, g, h, i) }
}
def parse_root(options: Options, select: Boolean, path: Path): List[(String, Info)] =
{
def make_info(entry_chapter: String, entry: Session_Entry): (String, Info) =
{
try {
val name = entry.name
if (name == "" || name == DRAFT) error("Bad session name")
if (is_pure(name) && entry.parent.isDefined) error("Illegal parent session")
if (!is_pure(name) && !entry.parent.isDefined) error("Missing parent session")
val session_options = options ++ entry.options
val theories =
entry.theories.map({ case (opts, thys) => (session_options ++ opts, thys.map(_._1)) })
val global_theories =
for { (_, thys) <- entry.theories; ((thy, pos), global) <- thys if global }
yield {
val thy_name = Path.explode(thy).expand.base_name
if (Long_Name.is_qualified(thy_name))
error("Bad qualified name for global theory " +
quote(thy_name) + Position.here(pos))
else thy_name
}
val document_files =
entry.document_files.map({ case (s1, s2) => (Path.explode(s1), Path.explode(s2)) })
val meta_digest =
SHA1.digest((entry_chapter, name, entry.parent, entry.options, entry.imports,
entry.theories_no_position, entry.document_files).toString)
val info =
Info(name, entry_chapter, select, entry.pos, entry.groups,
path.dir + Path.explode(entry.path), entry.parent, entry.description, session_options,
entry.imports, theories, global_theories, document_files, meta_digest)
(name, info)
}
catch {
case ERROR(msg) =>
error(msg + "\nThe error(s) above occurred in session entry " +
quote(entry.name) + Position.here(entry.pos))
}
}
val toks = Token.explode(root_syntax.keywords, File.read(path))
val start = Token.Pos.file(path.implode)
parse_all(rep(chapter | session_entry), Token.reader(toks, start)) match {
case Success(result, _) =>
var entry_chapter = "Unsorted"
val infos = new mutable.ListBuffer[(String, Info)]
result.foreach {
case Chapter(name) => entry_chapter = name
case entry: Session_Entry => infos += make_info(entry_chapter, entry)
}
infos.toList
case bad => error(bad.toString)
}
}
}
/* load sessions from certain directories */
private def is_session_dir(dir: Path): Boolean =
(dir + ROOT).is_file || (dir + ROOTS).is_file
private def check_session_dir(dir: Path): Path =
if (is_session_dir(dir)) File.pwd() + dir.expand
else error("Bad session root directory: " + dir.toString)
def directories(dirs: List[Path], select_dirs: List[Path]): List[(Boolean, Path)] =
{
val default_dirs = Isabelle_System.components().filter(is_session_dir(_))
(default_dirs ::: dirs).map((false, _)) ::: select_dirs.map((true, _))
}
def load(options: Options, dirs: List[Path] = Nil, select_dirs: List[Path] = Nil): T =
{
def load_dir(select: Boolean, dir: Path): List[(Boolean, Path)] =
load_root(select, dir) ::: load_roots(select, dir)
def load_root(select: Boolean, dir: Path): List[(Boolean, Path)] =
{
val root = dir + ROOT
if (root.is_file) List((select, root)) else Nil
}
def load_roots(select: Boolean, dir: Path): List[(Boolean, Path)] =
{
val roots = dir + ROOTS
if (roots.is_file) {
for {
line <- split_lines(File.read(roots))
if !(line == "" || line.startsWith("#"))
dir1 =
try { check_session_dir(dir + Path.explode(line)) }
catch {
case ERROR(msg) =>
error(msg + "\nThe error(s) above occurred in session catalog " + roots.toString)
}
res <- load_dir(select, dir1)
} yield res
}
else Nil
}
val roots =
for {
(select, dir) <- directories(dirs, select_dirs)
res <- load_dir(select, check_session_dir(dir))
} yield res
val unique_roots =
((Map.empty[JFile, (Boolean, Path)] /: roots) { case (m, (select, path)) =>
val file = path.canonical_file
m.get(file) match {
case None => m + (file -> (select, path))
case Some((select1, path1)) => m + (file -> (select1 || select, path1))
}
}).toList.map(_._2)
make(unique_roots.flatMap(p => Parser.parse_root(options, p._1, p._2)))
}
/** heap file with SHA1 digest **/
private val sha1_prefix = "SHA1:"
def read_heap_digest(heap: Path): Option[String] =
{
if (heap.is_file) {
val file = FileChannel.open(heap.file.toPath, StandardOpenOption.READ)
try {
val len = file.size
val n = sha1_prefix.length + SHA1.digest_length
if (len >= n) {
file.position(len - n)
val buf = ByteBuffer.allocate(n)
var i = 0
var m = 0
do {
m = file.read(buf)
if (m != -1) i += m
}
while (m != -1 && n > i)
if (i == n) {
val prefix = new String(buf.array(), 0, sha1_prefix.length, UTF8.charset)
val s = new String(buf.array(), sha1_prefix.length, SHA1.digest_length, UTF8.charset)
if (prefix == sha1_prefix) Some(s) else None
}
else None
}
else None
}
finally { file.close }
}
else None
}
def write_heap_digest(heap: Path): String =
read_heap_digest(heap) match {
case None =>
val s = SHA1.digest(heap).rep
File.append(heap, sha1_prefix + s)
s
case Some(s) => s
}
/** persistent store **/
object Session_Info
{
val session_name = SQL.Column.string("session_name", primary_key = true)
// Build_Log.Session_Info
val session_timing = SQL.Column.bytes("session_timing")
val command_timings = SQL.Column.bytes("command_timings")
val ml_statistics = SQL.Column.bytes("ml_statistics")
val task_statistics = SQL.Column.bytes("task_statistics")
val errors = SQL.Column.bytes("errors")
val build_log_columns =
List(session_name, session_timing, command_timings, ml_statistics, task_statistics, errors)
// Build.Session_Info
val sources = SQL.Column.string("sources")
val input_heaps = SQL.Column.string("input_heaps")
val output_heap = SQL.Column.string("output_heap")
val return_code = SQL.Column.int("return_code")
val build_columns = List(sources, input_heaps, output_heap, return_code)
val table = SQL.Table("isabelle_session_info", build_log_columns ::: build_columns)
}
def store(system_mode: Boolean = false): Store = new Store(system_mode)
class Store private[Sessions](system_mode: Boolean)
{
/* file names */
def database(name: String): Path = Path.basic("log") + Path.basic(name).ext("db")
def log(name: String): Path = Path.basic("log") + Path.basic(name)
def log_gz(name: String): Path = log(name).ext("gz")
/* SQL database content */
val xml_cache = new XML.Cache()
def read_bytes(db: SQL.Database, name: String, column: SQL.Column): Bytes =
db.using_statement(Session_Info.table.select(List(column),
Session_Info.session_name.where_equal(name)))(stmt =>
{
val res = stmt.execute_query()
if (!res.next()) Bytes.empty else res.bytes(column)
})
def read_properties(db: SQL.Database, name: String, column: SQL.Column): List[Properties.T] =
Properties.uncompress(read_bytes(db, name, column), Some(xml_cache))
/* output */
val browser_info: Path =
if (system_mode) Path.explode("~~/browser_info")
else Path.explode("$ISABELLE_BROWSER_INFO")
val output_dir: Path =
if (system_mode) Path.explode("~~/heaps/$ML_IDENTIFIER")
else Path.explode("$ISABELLE_OUTPUT")
override def toString: String = "Store(output_dir = " + output_dir.expand + ")"
def prepare_output() { Isabelle_System.mkdirs(output_dir + Path.basic("log")) }
/* input */
private val input_dirs =
if (system_mode) List(output_dir)
else {
val ml_ident = Path.explode("$ML_IDENTIFIER").expand
output_dir :: Path.split(Isabelle_System.getenv_strict("ISABELLE_PATH")).map(_ + ml_ident)
}
def find_database_heap(name: String): Option[(Path, Option[String])] =
input_dirs.find(dir => (dir + database(name)).is_file).map(dir =>
(dir + database(name), read_heap_digest(dir + Path.basic(name))))
def find_database(name: String): Option[Path] =
input_dirs.map(_ + database(name)).find(_.is_file)
def heap(name: String): Path =
input_dirs.map(_ + Path.basic(name)).find(_.is_file) getOrElse
error("Unknown logic " + quote(name) + " -- no heap file found in:\n" +
cat_lines(input_dirs.map(dir => " " + dir.expand.implode)))
/* session info */
def write_session_info(
db: SQL.Database,
name: String,
build_log: Build_Log.Session_Info,
build: Build.Session_Info)
{
db.transaction {
db.create_table(Session_Info.table)
db.using_statement(
Session_Info.table.delete(Session_Info.session_name.where_equal(name)))(_.execute)
db.using_statement(Session_Info.table.insert())(stmt =>
{
stmt.string(1) = name
stmt.bytes(2) = Properties.encode(build_log.session_timing)
stmt.bytes(3) = Properties.compress(build_log.command_timings)
stmt.bytes(4) = Properties.compress(build_log.ml_statistics)
stmt.bytes(5) = Properties.compress(build_log.task_statistics)
stmt.bytes(6) = Build_Log.compress_errors(build_log.errors)
stmt.string(7) = build.sources
stmt.string(8) = cat_lines(build.input_heaps)
stmt.string(9) = build.output_heap getOrElse ""
stmt.int(10) = build.return_code
stmt.execute()
})
}
}
def read_session_timing(db: SQL.Database, name: String): Properties.T =
Properties.decode(read_bytes(db, name, Session_Info.session_timing), Some(xml_cache))
def read_command_timings(db: SQL.Database, name: String): List[Properties.T] =
read_properties(db, name, Session_Info.command_timings)
def read_ml_statistics(db: SQL.Database, name: String): List[Properties.T] =
read_properties(db, name, Session_Info.ml_statistics)
def read_task_statistics(db: SQL.Database, name: String): List[Properties.T] =
read_properties(db, name, Session_Info.task_statistics)
def read_errors(db: SQL.Database, name: String): List[String] =
Build_Log.uncompress_errors(read_bytes(db, name, Session_Info.errors))
def read_build(db: SQL.Database, name: String): Option[Build.Session_Info] =
{
db.using_statement(Session_Info.table.select(Session_Info.build_columns,
Session_Info.session_name.where_equal(name)))(stmt =>
{
val res = stmt.execute_query()
if (!res.next()) None
else {
Some(
Build.Session_Info(
res.string(Session_Info.sources),
split_lines(res.string(Session_Info.input_heaps)),
res.string(Session_Info.output_heap) match { case "" => None case s => Some(s) },
res.int(Session_Info.return_code)))
}
})
}
}
}