src/Tools/VSCode/src/build_vscode_extension.scala

clarified names;

/*  Title:      Tools/VSCode/src/build_vscode_extension.scala
    Author:     Makarius

Build the Isabelle/VSCode extension.
*/

package isabelle.vscode


import isabelle._


object Build_VSCode
{
  val extension_dir = Path.explode("$ISABELLE_VSCODE_HOME/extension")


  /* grammar */

  def build_grammar(options: Options, progress: Progress = new Progress): Unit =
  {
    val logic = TextMate_Grammar.default_logic
    val keywords = Sessions.base_info(options, logic).check.base.overall_syntax.keywords

    val output_path = extension_dir + Path.explode(TextMate_Grammar.default_output(logic))
    progress.echo(output_path.expand.implode)
    File.write_backup(output_path, TextMate_Grammar.generate(keywords))
  }


  /* extension */

  def uninstall_extension(progress: Progress = new Progress): Unit =
    progress.bash("isabelle vscode --uninstall-extension Isabelle.isabelle").check

  def install_extension(vsix_path: Path, progress: Progress = new Progress): Unit =
    progress.bash("isabelle vscode --install-extension " +
      File.bash_platform_path(vsix_path))

  def build_extension(progress: Progress = new Progress): Path =
  {
    val output_path = extension_dir + Path.explode("out")
    Isabelle_System.rm_tree(output_path)
    Isabelle_System.make_directory(output_path)
    progress.echo(output_path.expand.implode)

    val result =
      progress.bash("npm install && npm update --dev && vsce package",
        cwd = extension_dir.file, echo = true).check

    val Pattern = """.*Packaged:.*(isabelle-.*\.vsix).*""".r
    result.out_lines.collectFirst(
      { case Pattern(vsix_name) => extension_dir + Path.basic(vsix_name) })
      .getOrElse(error("Failed to guess resulting .vsix file name"))
  }


  /* Isabelle tool wrapper */

  val isabelle_tool =
    Isabelle_Tool("build_vscode_extension", "build Isabelle/VSCode extension module",
      Scala_Project.here, args =>
    {
      var install = false
      var uninstall = false

      val getopts = Getopts("""
Usage: isabelle build_vscode_extension

  Options are:
    -I           install resulting extension
    -U           uninstall extension (no build)

Build Isabelle/VSCode extension module in directory
""" + extension_dir.expand + """

This requires node.js/npm and the vsce build tool.
""",
        "I" -> (_ => install = true),
        "U" -> (_ => uninstall = true))

      val more_args = getopts(args)
      if (more_args.nonEmpty) getopts.usage()

      val options = Options.init()
      val progress = new Console_Progress()

      if (uninstall) {
        uninstall_extension(progress = progress)
      }
      else {
        build_grammar(options, progress = progress)
        val path = build_extension(progress = progress)
        if (install) install_extension(path, progress = progress)
      }
    })
}