author | wenzelm |
Mon, 28 Dec 2009 22:03:14 +0100 | |
changeset 34201 | c95dcd12f48a |
parent 34200 | ca5f522fa233 |
child 34204 | fd76bc33b89b |
permissions | -rw-r--r-- |
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/* Title: Pure/System/isabelle_system.scala |
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Author: Makarius |
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Isabelle system support (settings environment etc.). |
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*/ |
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package isabelle |
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import java.util.regex.Pattern |
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import java.util.Locale |
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import java.io.{BufferedWriter, OutputStreamWriter, FileOutputStream, |
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BufferedInputStream, FileInputStream, BufferedReader, InputStreamReader, |
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File, IOException} |
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import java.awt.{GraphicsEnvironment, Font} |
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import scala.io.Source |
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import scala.util.matching.Regex |
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import scala.collection.mutable |
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class Isabelle_System extends Standard_System |
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{ |
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/** Isabelle environment **/ |
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/* bash environment */ |
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private val environment: Map[String, String] = |
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{ |
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import scala.collection.jcl.Conversions._ |
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val env0 = Map(java.lang.System.getenv.toList: _*) |
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val isabelle_home = |
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env0.get("ISABELLE_HOME") match { |
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case None | Some("") => |
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val path = java.lang.System.getProperty("isabelle.home") |
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if (path == null || path == "") error("Unknown Isabelle home directory") |
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else path |
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case Some(path) => path |
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} |
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Standard_System.with_tmp_file("settings") { dump => |
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val shell_prefix = |
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if (Platform.is_windows) List(platform_root + "\\bin\\bash", "-l") else Nil |
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val cmdline = |
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shell_prefix ::: List(isabelle_home + "/bin/isabelle", "getenv", "-d", dump.toString) |
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val (output, rc) = |
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Standard_System.process_output(Standard_System.raw_execute(env0, true, cmdline: _*)) |
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if (rc != 0) error(output) |
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val entries = |
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for (entry <- Source.fromFile(dump).mkString split "\0" if entry != "") yield { |
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val i = entry.indexOf('=') |
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if (i <= 0) (entry -> "") |
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else (entry.substring(0, i) -> entry.substring(i + 1)) |
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} |
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Map(entries: _*) + |
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("HOME" -> java.lang.System.getenv("HOME")) + |
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("PATH" -> java.lang.System.getenv("PATH")) |
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} |
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} |
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/* getenv */ |
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def getenv(name: String): String = |
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environment.getOrElse(if (name == "HOME") "HOME_JVM" else name, "") |
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def getenv_strict(name: String): String = |
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{ |
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val value = getenv(name) |
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if (value != "") value else error("Undefined environment variable: " + name) |
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} |
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override def toString = getenv("ISABELLE_HOME") |
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/** file path specifications **/ |
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/* expand_path */ |
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def expand_path(isabelle_path: String): String = |
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{ |
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val result_path = new StringBuilder |
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def init(path: String) |
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{ |
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if (path.startsWith("/")) { |
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result_path.clear |
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result_path += '/' |
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} |
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} |
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def append(path: String) |
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{ |
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init(path) |
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for (p <- path.split("/") if p != "" && p != ".") { |
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if (p == "..") { |
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val result = result_path.toString |
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val i = result.lastIndexOf("/") |
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if (result == "") |
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result_path ++= ".." |
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else if (result.substring(i + 1) == "..") |
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result_path ++= "/.." |
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else if (i < 1) |
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result_path.length = i + 1 |
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else |
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result_path.length = i |
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} |
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else { |
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val len = result_path.length |
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if (len > 0 && result_path(len - 1) != '/') |
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result_path += '/' |
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result_path ++= p |
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} |
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} |
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} |
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init(isabelle_path) |
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for (p <- isabelle_path.split("/")) { |
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if (p.startsWith("$")) append(getenv_strict(p.substring(1))) |
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else if (p == "~") append(getenv_strict("HOME")) |
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else if (p == "~~") append(getenv_strict("ISABELLE_HOME")) |
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else append(p) |
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} |
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result_path.toString |
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} |
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/* platform_path */ |
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def platform_path(isabelle_path: String): String = |
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jvm_path(expand_path(isabelle_path)) |
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def platform_file(path: String) = new File(platform_path(path)) |
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/* source files */ |
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private def try_file(file: File) = if (file.isFile) Some(file) else None |
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def source_file(path: String): Option[File] = |
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{ |
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if (path.startsWith("/") || path == "") |
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try_file(platform_file(path)) |
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else { |
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val pure_file = platform_file("$ISABELLE_HOME/src/Pure/" + path) |
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if (pure_file.isFile) Some(pure_file) |
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else if (getenv("ML_SOURCES") != "") |
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try_file(platform_file("$ML_SOURCES/" + path)) |
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else None |
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} |
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} |
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/** system tools **/ |
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/* external processes */ |
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def execute(redirect: Boolean, args: String*): Process = |
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{ |
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val cmdline = |
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if (Platform.is_windows) List(jvm_path("/bin/env")) ++ args |
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else args |
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Standard_System.raw_execute(environment, redirect, cmdline: _*) |
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} |
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def system_out(script: String): (String, Int) = |
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{ |
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Standard_System.with_tmp_file("isabelle_script") { script_file => |
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Standard_System.with_tmp_file("isabelle_pid") { pid_file => |
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Standard_System.with_tmp_file("isabelle_output") { output_file => |
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Standard_System.write_file(script_file, script) |
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val proc = execute(true, "perl", "-w", |
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expand_path("$ISABELLE_HOME/lib/scripts/system.pl"), "group", |
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script_file.getPath, pid_file.getPath, output_file.getPath) |
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def kill(strict: Boolean) = |
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{ |
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val pid = |
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try { Some(Standard_System.read_file(pid_file)) } |
34199 | 183 |
catch { case _: IOException => None } |
184 |
if (pid.isDefined) { |
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185 |
var running = true |
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186 |
var count = 10 |
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187 |
while (running && count > 0) { |
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188 |
if (execute(true, "kill", "-INT", "-" + pid.get).waitFor != 0) |
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189 |
running = false |
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190 |
else { |
|
191 |
Thread.sleep(100) |
|
192 |
if (!strict) count -= 1 |
|
193 |
} |
|
194 |
} |
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} |
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} |
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34199 | 198 |
val shutdown_hook = new Thread { override def run = kill(true) } |
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Runtime.getRuntime.addShutdownHook(shutdown_hook) // FIXME tmp files during shutdown?!? |
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def cleanup() = |
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try { Runtime.getRuntime.removeShutdownHook(shutdown_hook) } |
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catch { case _: IllegalStateException => } |
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|
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val rc = |
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try { |
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try { proc.waitFor } // FIXME read stderr (!??) |
34199 | 208 |
catch { case e: InterruptedException => Thread.interrupted; kill(false); throw e } |
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} |
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finally { |
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proc.getOutputStream.close |
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proc.getInputStream.close |
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proc.getErrorStream.close |
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proc.destroy |
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215 |
cleanup() |
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216 |
} |
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217 |
|
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218 |
val output = |
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try { Standard_System.read_file(output_file) } |
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catch { case _: IOException => "" } |
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|
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(output, rc) |
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223 |
} |
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224 |
} |
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225 |
} |
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226 |
} |
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227 |
|
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builtin isabelle_tool for ML and Scala -- avoids excessive shell script (especially important for Cygwin);
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31803
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def isabelle_tool(name: String, args: String*): (String, Int) = |
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{ |
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getenv_strict("ISABELLE_TOOLS").split(":").find { dir => |
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val file = platform_file(dir + "/" + name) |
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try { file.isFile && file.canRead && file.canExecute } |
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catch { case _: SecurityException => false } |
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} match { |
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case Some(dir) => |
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Standard_System.process_output( |
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execute(true, (List(expand_path(dir + "/" + name)) ++ args): _*)) |
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case None => ("Unknown Isabelle tool: " + name, 2) |
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} |
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} |
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||
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||
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/* named pipes */ |
|
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||
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def mk_fifo(): String = |
246 |
{ |
|
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val (result, rc) = isabelle_tool("mkfifo") |
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if (rc == 0) result.trim |
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else error(result) |
|
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} |
|
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||
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def rm_fifo(fifo: String) |
253 |
{ |
|
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val (result, rc) = isabelle_tool("rmfifo", fifo) |
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if (rc != 0) error(result) |
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} |
|
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||
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def fifo_stream(fifo: String): BufferedInputStream = |
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{ |
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// blocks until writer is ready |
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val stream = |
|
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if (Platform.is_windows) { |
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val proc = execute(false, "cat", fifo) |
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proc.getOutputStream.close |
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proc.getErrorStream.close |
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proc.getInputStream |
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} |
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else new FileInputStream(fifo) |
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new BufferedInputStream(stream) |
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} |
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|
29152 | 272 |
|
32450 | 273 |
|
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/** Isabelle resources **/ |
275 |
||
32328 | 276 |
/* components */ |
277 |
||
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def components(): List[String] = |
|
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getenv("ISABELLE_COMPONENTS").split(":").toList |
|
280 |
||
281 |
||
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/* find logics */ |
283 |
||
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def find_logics(): List[String] = |
285 |
{ |
|
29152 | 286 |
val ml_ident = getenv_strict("ML_IDENTIFIER") |
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val logics = new mutable.ListBuffer[String] |
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for (dir <- getenv_strict("ISABELLE_PATH").split(":")) { |
289 |
val files = platform_file(dir + "/" + ml_ident).listFiles() |
|
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if (files != null) { |
|
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for (file <- files if file.isFile) logics += file.getName |
|
292 |
} |
|
293 |
} |
|
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logics.toList.sort(_ < _) |
|
295 |
} |
|
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|
297 |
||
298 |
/* symbols */ |
|
299 |
||
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private def read_symbols(path: String): List[String] = |
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{ |
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val file = platform_file(path) |
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if (file.isFile) Source.fromFile(file).getLines.toList |
304 |
else Nil |
|
29570 | 305 |
} |
306 |
val symbols = new Symbol.Interpretation( |
|
34137 | 307 |
read_symbols("$ISABELLE_HOME/etc/symbols") ::: |
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read_symbols("$ISABELLE_HOME_USER/etc/symbols")) |
34024 | 309 |
|
310 |
||
311 |
/* fonts */ |
|
312 |
||
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val font_family = "IsabelleText" |
|
314 |
||
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private def check_font(): Boolean = |
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new Font(font_family, Font.PLAIN, 1).getFamily == font_family |
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|
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private def create_font(name: String) = |
319 |
Font.createFont(Font.TRUETYPE_FONT, platform_file(name)) |
|
320 |
||
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def install_fonts() |
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{ |
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if (!check_font()) { |
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val ge = GraphicsEnvironment.getLocalGraphicsEnvironment() |
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ge.registerFont(create_font("$ISABELLE_HOME/lib/fonts/IsabelleText.ttf")) |
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ge.registerFont(create_font("$ISABELLE_HOME/lib/fonts/IsabelleTextBold.ttf")) |
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if (!check_font()) |
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error("Failed to install IsabelleText fonts") |
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329 |
} |
34024 | 330 |
} |
27919 | 331 |
} |