src/Pure/Admin/component_find_facts_web.scala

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/Pure/Admin/component_find_facts_web.scala	Fri Feb 07 22:23:24 2025 +0100
@@ -0,0 +1,152 @@
+/*  Title:      Pure/Admin/component_find_facts_web.scala
+    Author:     Fabian Huch, TU Muenchen
+
+Build Isabelle component for find_facts web app, including external resources.
+*/
+
+package isabelle
+
+
+import find_facts.Find_Facts
+
+
+object Component_Find_Facts_Web {
+  /* roboto font */
+
+  val default_roboto_url = "https://r2.fontsource.org/fonts/roboto"
+  val default_roboto_version = "5.1.1"
+
+
+  /* material components web elm */
+
+  val default_mcwe_url = "https://unpkg.com/material-components-web-elm"
+  val default_mcwe_version = "9.1.0"
+
+
+  /* build find facts web app */
+
+  def build_find_facts_web(
+    roboto_base_url: String = default_roboto_url,
+    roboto_version: String = default_roboto_version,
+    mcwe_base_url: String = default_mcwe_url,
+    mcwe_version: String = default_mcwe_version,
+    target_dir: Path = Path.current,
+    progress: Progress = new Progress,
+  ): Unit = {
+    /* component */
+
+    val component_name = "find_facts_web-" + Date.Format.alt_date(Date.now())
+    val component_dir =
+      Components.Directory(target_dir + Path.basic(component_name)).create(progress = progress)
+
+    val web_dir = Isabelle_System.make_directory(component_dir.path + Path.basic("web"))
+
+
+    /* roboto */
+
+    val roboto_download =  roboto_base_url + "@" + roboto_version + "/download.zip"
+    val roboto_fonts =
+      List(300, 400, 500).map(weight => weight -> ("roboto-latin-" + weight + "-normal.woff"))
+
+    Isabelle_System.with_tmp_dir("download") { download_dir =>
+      val archive_path = download_dir + Path.basic("download.zip")
+
+      Isabelle_System.download_file(roboto_download, archive_path)
+      Isabelle_System.extract(archive_path, download_dir)
+
+      roboto_fonts.foreach((_, name) =>
+        Isabelle_System.copy_file(download_dir + Path.make(List("webfonts", name)), web_dir))
+      Isabelle_System.copy_file(
+        download_dir + Path.basic("LICENSE"),
+        component_dir.path + Path.basic("LICENSE-roboto"))
+
+      File.write(web_dir + Path.basic("roboto.css"), roboto_fonts.map((weight, name) => """
+@font-face {
+  font-family: 'Roboto';
+  font-weight: """ + weight + """;
+  src: url('./""" + name + """') format('woff');
+}
+""").mkString)
+    }
+
+    val roboto_css = "roboto.css" -> HTTP.Content.mime_type_css
+    val roboto_assets = roboto_css :: roboto_fonts.map((_, name) => name -> "font/woff")
+
+
+    /* mcwe */
+
+    def mcwe_file(path: String): String = mcwe_base_url + "@" + mcwe_version + "/" + path
+
+    val mcwe_assets =
+      List(
+        "material-components-web-elm.min.js" -> HTTP.Content.mime_type_js,
+        "material-components-web-elm.min.css" -> HTTP.Content.mime_type_css)
+
+    for ((name, _) <- mcwe_assets)
+      Isabelle_System.download_file(mcwe_file("dist/" + name), web_dir + Path.basic(name))
+
+
+    /* settings */
+
+    val assets =
+      (roboto_assets ::: mcwe_assets).map((name, mime_type) => name + ":" + mime_type).mkString(",")
+    component_dir.write_settings("""
+FIND_FACTS_WEB_ASSETS_DIR="$COMPONENT/web"
+FIND_FACTS_WEB_ASSETS="""" + assets + """"
+""")
+
+    /* README */
+
+    File.write(component_dir.README,
+      """This component contains web assets (downloaded from recommended CDNs) for the Find_Facts
+web application, and its compiled index.html.
+
+Sources can be found in $FIND_FACTS_HOME/web.
+
+        Fabian Huch
+""")
+
+
+    /* pre-compiled web app */
+
+    Isabelle_System.with_tmp_dir("find_facts") { dir =>
+      Find_Facts.build_html(web_dir + Find_Facts.web_html, dir, assets, progress = progress)
+    }
+
+
+    /* license */
+
+    File.write(
+      component_dir.path + Path.basic("LICENSE-material-components-web-elm"),
+      Url.read(mcwe_file("LICENSE")))
+  }
+
+
+  /* Isabelle tool wrapper */
+
+  val isabelle_tool =
+    Isabelle_Tool(
+      "component_find_facts_web",
+      "build Find_Facts web component from elm sources and external resources",
+      Scala_Project.here,
+      { args =>
+        var target_dir = Path.current
+
+        val getopts = Getopts("""
+Usage: isabelle component_find_facts_web [OPTIONS]
+
+  Options are:
+    -D DIR       target directory (default ".")
+
+  Build Find_Facts web component from the specified url and elm sources.
+""",
+          "D:" -> (arg => target_dir = Path.explode(arg)))
+
+        val more_args = getopts(args)
+        if (more_args.nonEmpty) getopts.usage()
+
+        val progress = new Console_Progress()
+
+        build_find_facts_web(target_dir = target_dir, progress = progress)
+      })
+}
\ No newline at end of file