/* Title: Pure/Thy/export.scala
Author: Makarius
Manage theory exports: compressed blobs.
*/
package isabelle
import scala.annotation.tailrec
import scala.util.matching.Regex
object Export
{
/* name structure */
def explode_name(s: String): List[String] = space_explode('/', s)
def implode_name(elems: Iterable[String]): String = elems.mkString("/")
/* SQL data model */
object Data
{
val session_name = SQL.Column.string("session_name").make_primary_key
val theory_name = SQL.Column.string("theory_name").make_primary_key
val name = SQL.Column.string("name").make_primary_key
val executable = SQL.Column.bool("executable")
val compressed = SQL.Column.bool("compressed")
val body = SQL.Column.bytes("body")
val table =
SQL.Table("isabelle_exports",
List(session_name, theory_name, name, executable, compressed, body))
def where_equal(session_name: String, theory_name: String = "", name: String = ""): SQL.Source =
"WHERE " + Data.session_name.equal(session_name) +
(if (theory_name == "") "" else " AND " + Data.theory_name.equal(theory_name)) +
(if (name == "") "" else " AND " + Data.name.equal(name))
}
def read_name(db: SQL.Database, session_name: String, theory_name: String, name: String): Boolean =
{
val select =
Data.table.select(List(Data.name), Data.where_equal(session_name, theory_name, name))
db.using_statement(select)(stmt => stmt.execute_query().next())
}
def read_names(db: SQL.Database, session_name: String, theory_name: String): List[String] =
{
val select = Data.table.select(List(Data.name), Data.where_equal(session_name, theory_name))
db.using_statement(select)(stmt =>
stmt.execute_query().iterator(res => res.string(Data.name)).toList)
}
def read_theory_names(db: SQL.Database, session_name: String): List[String] =
{
val select =
Data.table.select(List(Data.theory_name), Data.where_equal(session_name), distinct = true)
db.using_statement(select)(stmt =>
stmt.execute_query().iterator(_.string(Data.theory_name)).toList)
}
def read_theory_exports(db: SQL.Database, session_name: String): List[(String, String)] =
{
val select = Data.table.select(List(Data.theory_name, Data.name), Data.where_equal(session_name))
db.using_statement(select)(stmt =>
stmt.execute_query().iterator(res =>
(res.string(Data.theory_name), res.string(Data.name))).toList)
}
def message(msg: String, theory_name: String, name: String): String =
msg + " " + quote(name) + " for theory " + quote(theory_name)
def compound_name(a: String, b: String): String = a + ":" + b
sealed case class Entry(
session_name: String,
theory_name: String,
name: String,
executable: Boolean,
body: Future[(Boolean, Bytes)])
{
override def toString: String = name
def compound_name: String = Export.compound_name(theory_name, name)
val name_elems: List[String] = explode_name(name)
def name_extends(elems: List[String]): Boolean =
name_elems.startsWith(elems) && name_elems != elems
def text: String = uncompressed().text
def uncompressed(cache: XZ.Cache = XZ.cache()): Bytes =
{
val (compressed, bytes) = body.join
if (compressed) bytes.uncompress(cache = cache) else bytes
}
def uncompressed_yxml(cache: XZ.Cache = XZ.cache()): XML.Body =
YXML.parse_body(UTF8.decode_permissive(uncompressed(cache = cache)))
def write(db: SQL.Database)
{
val (compressed, bytes) = body.join
db.using_statement(Data.table.insert())(stmt =>
{
stmt.string(1) = session_name
stmt.string(2) = theory_name
stmt.string(3) = name
stmt.bool(4) = executable
stmt.bool(5) = compressed
stmt.bytes(6) = bytes
stmt.execute()
})
}
}
def make_regex(pattern: String): Regex =
{
@tailrec def make(result: List[String], depth: Int, chs: List[Char]): Regex =
chs match {
case '*' :: '*' :: rest => make("[^:]*" :: result, depth, rest)
case '*' :: rest => make("[^:/]*" :: result, depth, rest)
case '?' :: rest => make("[^:/]" :: result, depth, rest)
case '\\' :: c :: rest => make(("\\" + c) :: result, depth, rest)
case '{' :: rest => make("(" :: result, depth + 1, rest)
case ',' :: rest if depth > 0 => make("|" :: result, depth, rest)
case '}' :: rest if depth > 0 => make(")" :: result, depth - 1, rest)
case c :: rest if ".+()".contains(c) => make(("\\" + c) :: result, depth, rest)
case c :: rest => make(c.toString :: result, depth, rest)
case Nil => result.reverse.mkString.r
}
make(Nil, 0, pattern.toList)
}
def make_matcher(pattern: String): (String, String) => Boolean =
{
val regex = make_regex(pattern)
(theory_name: String, name: String) =>
regex.pattern.matcher(compound_name(theory_name, name)).matches
}
def make_entry(session_name: String, args: Markup.Export.Args, body: Bytes,
cache: XZ.Cache = XZ.cache()): Entry =
{
Entry(session_name, args.theory_name, args.name, args.executable,
if (args.compress) Future.fork(body.maybe_compress(cache = cache))
else Future.value((false, body)))
}
def read_entry(db: SQL.Database, session_name: String, theory_name: String, name: String)
: Option[Entry] =
{
val select =
Data.table.select(List(Data.executable, Data.compressed, Data.body),
Data.where_equal(session_name, theory_name, name))
db.using_statement(select)(stmt =>
{
val res = stmt.execute_query()
if (res.next()) {
val executable = res.bool(Data.executable)
val compressed = res.bool(Data.compressed)
val body = res.bytes(Data.body)
Some(Entry(session_name, theory_name, name, executable, Future.value(compressed, body)))
}
else None
})
}
def read_entry(dir: Path, session_name: String, theory_name: String, name: String): Option[Entry] =
{
val path = dir + Path.basic(theory_name) + Path.explode(name)
if (path.is_file) {
val executable = File.is_executable(path)
val uncompressed = Bytes.read(path)
Some(Entry(session_name, theory_name, name, executable, Future.value((false, uncompressed))))
}
else None
}
/* database consumer thread */
def consumer(db: SQL.Database, cache: XZ.Cache = XZ.cache()): Consumer = new Consumer(db, cache)
class Consumer private[Export](db: SQL.Database, cache: XZ.Cache)
{
private val errors = Synchronized[List[String]](Nil)
private val consumer =
Consumer_Thread.fork_bulk[(Entry, Boolean)](name = "export")(
bulk = { case (entry, _) => entry.body.is_finished },
consume =
(args: List[(Entry, Boolean)]) =>
{
val results =
db.transaction {
for ((entry, strict) <- args)
yield {
if (read_name(db, entry.session_name, entry.theory_name, entry.name)) {
if (strict) {
val msg = message("Duplicate export", entry.theory_name, entry.name)
errors.change(msg :: _)
}
Exn.Res(())
}
else Exn.capture { entry.write(db) }
}
}
(results, true)
})
def apply(session_name: String, args: Markup.Export.Args, body: Bytes): Unit =
consumer.send(make_entry(session_name, args, body, cache = cache) -> args.strict)
def shutdown(close: Boolean = false): List[String] =
{
consumer.shutdown()
if (close) db.close()
errors.value.reverse
}
}
/* abstract provider */
object Provider
{
def none: Provider =
new Provider {
def apply(export_name: String): Option[Entry] = None
def focus(other_theory: String): Provider = this
override def toString: String = "none"
}
def database(db: SQL.Database, session_name: String, theory_name: String): Provider =
new Provider {
def apply(export_name: String): Option[Entry] =
read_entry(db, session_name, theory_name, export_name)
def focus(other_theory: String): Provider =
if (other_theory == theory_name) this
else Provider.database(db, session_name, other_theory)
override def toString: String = db.toString
}
def snapshot(snapshot: Document.Snapshot): Provider =
new Provider {
def apply(export_name: String): Option[Entry] =
snapshot.exports_map.get(export_name)
def focus(other_theory: String): Provider =
if (other_theory == snapshot.node_name.theory) this
else {
val node_name =
snapshot.version.nodes.theory_name(other_theory) getOrElse
error("Bad theory " + quote(other_theory))
Provider.snapshot(snapshot.state.snapshot(node_name))
}
override def toString: String = snapshot.toString
}
def directory(dir: Path, session_name: String, theory_name: String): Provider =
new Provider {
def apply(export_name: String): Option[Entry] =
read_entry(dir, session_name, theory_name, export_name)
def focus(other_theory: String): Provider =
if (other_theory == theory_name) this
else Provider.directory(dir, session_name, other_theory)
override def toString: String = dir.toString
}
}
trait Provider
{
def apply(export_name: String): Option[Entry]
def uncompressed_yxml(export_name: String, cache: XZ.Cache = XZ.cache()): XML.Body =
apply(export_name) match {
case Some(entry) => entry.uncompressed_yxml(cache = cache)
case None => Nil
}
def focus(other_theory: String): Provider
}
/* export to file-system */
def export_files(
store: Sessions.Store,
session_name: String,
export_dir: Path,
progress: Progress = No_Progress,
export_prune: Int = 0,
export_list: Boolean = false,
export_patterns: List[String] = Nil)
{
using(store.open_database(session_name))(db =>
{
db.transaction {
val export_names = read_theory_exports(db, session_name)
// list
if (export_list) {
(for ((theory_name, name) <- export_names) yield compound_name(theory_name, name)).
sorted.foreach(progress.echo)
}
// export
if (export_patterns.nonEmpty) {
val exports =
(for {
export_pattern <- export_patterns.iterator
matcher = make_matcher(export_pattern)
(theory_name, name) <- export_names if matcher(theory_name, name)
} yield (theory_name, name)).toSet
for {
(theory_name, group) <- exports.toList.groupBy(_._1).toList.sortBy(_._1)
name <- group.map(_._2).sorted
entry <- read_entry(db, session_name, theory_name, name)
} {
val elems = theory_name :: space_explode('/', name)
val path =
if (elems.length < export_prune + 1) {
error("Cannot prune path by " + export_prune + " element(s): " + Path.make(elems))
}
else export_dir + Path.make(elems.drop(export_prune))
progress.echo("export " + path + (if (entry.executable) " (executable)" else ""))
Isabelle_System.mkdirs(path.dir)
Bytes.write(path, entry.uncompressed(cache = store.xz_cache))
File.set_executable(path, entry.executable)
}
}
}
})
}
/* Isabelle tool wrapper */
val default_export_dir: Path = Path.explode("export")
val isabelle_tool = Isabelle_Tool("export", "retrieve theory exports", args =>
{
/* arguments */
var export_dir = default_export_dir
var dirs: List[Path] = Nil
var export_list = false
var no_build = false
var options = Options.init()
var export_prune = 0
var export_patterns: List[String] = Nil
val getopts = Getopts("""
Usage: isabelle export [OPTIONS] SESSION
Options are:
-O DIR output directory for exported files (default: """ + default_export_dir + """)
-d DIR include session directory
-l list exports
-n no build of session
-o OPTION override Isabelle system OPTION (via NAME=VAL or NAME)
-p NUM prune path of exported files by NUM elements
-x PATTERN extract files matching pattern (e.g. "*:**" for all)
List or export theory exports for SESSION: named blobs produced by
isabelle build. Option -l or -x is required; option -x may be repeated.
The PATTERN language resembles glob patterns in the shell, with ? and *
(both excluding ":" and "/"), ** (excluding ":"), and [abc] or [^abc],
and variants {pattern1,pattern2,pattern3}.
""",
"O:" -> (arg => export_dir = Path.explode(arg)),
"d:" -> (arg => dirs = dirs ::: List(Path.explode(arg))),
"l" -> (_ => export_list = true),
"n" -> (_ => no_build = true),
"o:" -> (arg => options = options + arg),
"p:" -> (arg => export_prune = Value.Int.parse(arg)),
"x:" -> (arg => export_patterns ::= arg))
val more_args = getopts(args)
val session_name =
more_args match {
case List(session_name) if export_list || export_patterns.nonEmpty => session_name
case _ => getopts.usage()
}
val progress = new Console_Progress()
/* build */
if (!no_build) {
val rc =
progress.interrupt_handler {
Build.build_logic(options, session_name, progress = progress, dirs = dirs)
}
if (rc != 0) sys.exit(rc)
}
/* export files */
val store = Sessions.store(options)
export_files(store, session_name, export_dir, progress = progress, export_prune = export_prune,
export_list = export_list, export_patterns = export_patterns)
})
}