/* Title: Tools/VSCode/src/vscode_resources.scala
Author: Makarius
Resources for VSCode Language Server: file-system access and global state.
*/
package isabelle.vscode
import isabelle._
import java.io.{File => JFile}
import scala.util.parsing.input.Reader
object VSCode_Resources
{
/* internal state */
sealed case class State(
models: Map[JFile, Document_Model] = Map.empty,
pending_input: Set[JFile] = Set.empty,
pending_output: Set[JFile] = Set.empty)
{
def update_models(changed: Traversable[(JFile, Document_Model)]): State =
copy(
models = models ++ changed,
pending_input = (pending_input /: changed) { case (set, (file, _)) => set + file },
pending_output = (pending_output /: changed) { case (set, (file, _)) => set + file })
lazy val document_blobs: Document.Blobs =
Document.Blobs(
(for {
(_, model) <- models.iterator
blob <- model.get_blob
} yield (model.node_name -> blob)).toMap)
}
}
class VSCode_Resources(
val options: Options,
val text_length: Text.Length,
base: Sessions.Base,
log: Logger = No_Logger) extends Resources(base, log)
{
private val state = Synchronized(VSCode_Resources.State())
/* document node name */
def node_file(name: Document.Node.Name): JFile = new JFile(name.node)
def node_name(file: JFile): Document.Node.Name =
{
val node = file.getPath
val theory = Thy_Header.thy_name_bootstrap(node).getOrElse("")
val master_dir = if (theory == "") "" else file.getParent
Document.Node.Name(node, master_dir, theory)
}
override def append(dir: String, source_path: Path): String =
{
val path = source_path.expand
if (dir == "" || path.is_absolute) File.platform_path(path)
else if (path.is_current) dir
else if (path.is_basic && !dir.endsWith("/") && !dir.endsWith(JFile.separator))
dir + JFile.separator + File.platform_path(path)
else if (path.is_basic) dir + File.platform_path(path)
else new JFile(dir + JFile.separator + File.platform_path(path)).getCanonicalPath
}
def get_model(file: JFile): Option[Document_Model] = state.value.models.get(file)
def get_model(name: Document.Node.Name): Option[Document_Model] = get_model(node_file(name))
/* file content */
def read_file_content(file: JFile): Option[String] =
try { Some(Line.normalize(File.read(file))) }
catch { case ERROR(_) => None }
def get_file_content(file: JFile): Option[String] =
get_model(file) match {
case Some(model) => Some(model.content.text)
case None => read_file_content(file)
}
def bibtex_entries_iterator(): Iterator[Text.Info[(String, Document_Model)]] =
for {
(_, model) <- state.value.models.iterator
Text.Info(range, entry) <- model.content.bibtex_entries.iterator
} yield Text.Info(range, (entry, model))
override def with_thy_reader[A](name: Document.Node.Name, f: Reader[Char] => A): A =
{
val file = node_file(name)
get_model(file) match {
case Some(model) => f(Scan.char_reader(model.content.text))
case None if file.isFile =>
val reader = Scan.byte_reader(file)
try { f(reader) } finally { reader.close }
case None =>
error("No such file: " + quote(file.toString))
}
}
/* document models */
def visible_node(name: Document.Node.Name): Boolean =
get_model(name) match {
case Some(model) => model.node_visible
case None => false
}
def update_model(session: Session, file: JFile, text: String)
{
state.change(st =>
{
val model = st.models.getOrElse(file, Document_Model.init(session, node_name(file)))
val model1 = (model.update_text(text) getOrElse model).external(false)
st.update_models(Some(file -> model1))
})
}
def close_model(file: JFile): Boolean =
state.change_result(st =>
st.models.get(file) match {
case None => (false, st)
case Some(model) => (true, st.update_models(Some(file -> model.external(true))))
})
def sync_models(changed_files: Set[JFile]): Unit =
state.change(st =>
{
val changed_models =
(for {
(file, model) <- st.models.iterator
if changed_files(file) && model.external_file
text <- read_file_content(file)
model1 <- model.update_text(text)
} yield (file, model1)).toList
st.update_models(changed_models)
})
/* resolve dependencies */
def resolve_dependencies(session: Session, file_watcher: File_Watcher): (Boolean, Boolean) =
{
state.change_result(st =>
{
/* theory files */
val thys =
(for ((_, model) <- st.models.iterator if model.is_theory)
yield (model.node_name, Position.none)).toList
val thy_files = thy_info.dependencies("", thys).deps.map(_.name)
/* auxiliary files */
val stable_tip_version =
if (st.models.forall(entry => entry._2.is_stable))
session.current_state().stable_tip_version
else None
val aux_files =
stable_tip_version match {
case Some(version) => undefined_blobs(version.nodes)
case None => Nil
}
/* loaded models */
val loaded_models =
(for {
node_name <- thy_files.iterator ++ aux_files.iterator
file = node_file(node_name)
if !st.models.isDefinedAt(file)
text <- { file_watcher.register_parent(file); read_file_content(file) }
}
yield {
val model = Document_Model.init(session, node_name)
val model1 = (model.update_text(text) getOrElse model).external(true)
(file, model1)
}).toList
val invoke_input = loaded_models.nonEmpty
val invoke_load = stable_tip_version.isEmpty
((invoke_input, invoke_load), st.update_models(loaded_models))
})
}
/* pending input */
def flush_input(session: Session)
{
state.change(st =>
{
val changed_models =
(for {
file <- st.pending_input.iterator
model <- st.models.get(file)
(edits, model1) <- model.flush_edits(st.document_blobs)
} yield (edits, (file, model1))).toList
session.update(st.document_blobs, changed_models.flatMap(_._1))
st.copy(
models = st.models ++ changed_models.iterator.map(_._2),
pending_input = Set.empty)
})
}
/* pending output */
def update_output(changed_nodes: List[JFile]): Unit =
state.change(st => st.copy(pending_output = st.pending_output ++ changed_nodes))
def flush_output(channel: Channel)
{
state.change(st =>
{
val changed_iterator =
for {
file <- st.pending_output.iterator
model <- st.models.get(file)
rendering = model.rendering()
(changed_diags, changed_decos, model1) = model.publish(rendering)
if changed_diags.isDefined || changed_decos.isDefined
}
yield {
for (diags <- changed_diags)
channel.write(Protocol.PublishDiagnostics(file, rendering.diagnostics_output(diags)))
for (decos <- changed_decos; deco <- decos)
channel.write(rendering.decoration_output(deco).json(file))
(file, model1)
}
st.copy(
models = st.models ++ changed_iterator,
pending_output = Set.empty)
}
)
}
/* output text */
def decode_text: Boolean = options.bool("vscode_unicode_symbols")
def tooltip_margin: Int = options.int("vscode_tooltip_margin")
def message_margin: Int = options.int("vscode_message_margin")
def output_text(s: String): String =
if (decode_text) Symbol.decode(s) else Symbol.encode(s)
def output_xml(xml: XML.Tree): String =
output_text(XML.content(xml))
def output_pretty(body: XML.Body, margin: Int): String =
output_text(Pretty.string_of(body, margin))
def output_pretty_tooltip(body: XML.Body): String = output_pretty(body, tooltip_margin)
def output_pretty_message(body: XML.Body): String = output_pretty(body, message_margin)
}