author | wenzelm |
Mon, 31 Dec 2012 14:58:21 +0100 | |
changeset 50652 | ead5714cc480 |
parent 50651 | 1fe68f1c3069 |
child 50684 | 12b7e0b4a66e |
permissions | -rw-r--r-- |
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/* Title: Pure/System/isabelle_system.scala |
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Author: Makarius |
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Fundamental Isabelle system environment: quasi-static module with |
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optional init operation. |
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*/ |
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package isabelle |
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import java.lang.System |
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import java.util.regex.Pattern |
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import java.io.{InputStream, OutputStream, File => JFile, BufferedReader, InputStreamReader, |
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BufferedWriter, OutputStreamWriter, IOException, FileInputStream, BufferedInputStream} |
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import java.awt.{GraphicsEnvironment, Font} |
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import java.awt.font.TextAttribute |
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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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object Isabelle_System |
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{ |
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/** bootstrap information **/ |
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def jdk_home(): String = |
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{ |
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val java_home = System.getProperty("java.home") |
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val home = new JFile(java_home) |
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val parent = home.getParent |
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if (home.getName == "jre" && parent != null && |
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(new JFile(new JFile(parent, "bin"), "javac")).exists) parent |
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else java_home |
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} |
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def cygwin_root(): String = |
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{ |
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require(Platform.is_windows) |
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val cygwin_root1 = System.getenv("CYGWIN_ROOT") |
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val cygwin_root2 = System.getProperty("cygwin.root") |
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if (cygwin_root1 != null && cygwin_root1 != "") cygwin_root1 |
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else if (cygwin_root2 != null && cygwin_root2 != "") cygwin_root2 |
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else error("Cannot determine Cygwin root directory") |
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} |
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/** implicit settings environment **/ |
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@volatile private var _settings: Option[Map[String, String]] = None |
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def settings(): Map[String, String] = |
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{ |
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if (_settings.isEmpty) init() // unsynchronized check |
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_settings.get |
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} |
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/* |
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isabelle_home precedence: |
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(1) this_isabelle_home as explicit argument |
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(2) ISABELLE_HOME process environment variable (e.g. inherited from running isabelle tool) |
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(3) isabelle.home system property (e.g. via JVM application boot process) |
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*/ |
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def init(this_isabelle_home: String = null): Unit = synchronized { |
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if (_settings.isEmpty) { |
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import scala.collection.JavaConversions._ |
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val settings = |
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{ |
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val env0 = sys.env + ("ISABELLE_JDK_HOME" -> posix_path(jdk_home())) |
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val user_home = System.getProperty("user.home") |
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val env = |
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if (user_home == null || env0.isDefinedAt("HOME")) env0 |
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else env0 + ("HOME" -> user_home) |
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val isabelle_home = |
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if (this_isabelle_home != null) this_isabelle_home |
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else |
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env.get("ISABELLE_HOME") match { |
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case None | Some("") => |
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val path = 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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File.with_tmp_file("settings") { dump => |
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val shell_prefix = |
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if (Platform.is_windows) List(cygwin_root() + "\\bin\\bash", "-l") |
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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) = process_output(raw_execute(null, env, true, cmdline: _*)) |
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if (rc != 0) error(output) |
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val entries = |
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(for (entry <- File.read(dump) 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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}).toMap |
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entries + ("PATH" -> entries("PATH_JVM")) - "PATH_JVM" |
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} |
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} |
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_settings = Some(settings) |
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} |
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} |
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/* getenv */ |
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def getenv(name: String): String = settings.getOrElse(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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/** file-system operations **/ |
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/* jvm_path */ |
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private val Cygdrive = new Regex("/cygdrive/([a-zA-Z])($|/.*)") |
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private val Named_Root = new Regex("//+([^/]*)(.*)") |
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def jvm_path(posix_path: String): String = |
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if (Platform.is_windows) { |
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val result_path = new StringBuilder |
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val rest = |
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posix_path match { |
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case Cygdrive(drive, rest) => |
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result_path ++= (Library.uppercase(drive) + ":" + JFile.separator) |
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rest |
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case Named_Root(root, rest) => |
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result_path ++= JFile.separator |
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result_path ++= JFile.separator |
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result_path ++= root |
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rest |
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case path if path.startsWith("/") => |
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result_path ++= cygwin_root() |
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path |
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case path => path |
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} |
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for (p <- space_explode('/', rest) if p != "") { |
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val len = result_path.length |
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if (len > 0 && result_path(len - 1) != JFile.separatorChar) |
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result_path += JFile.separatorChar |
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result_path ++= p |
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154 |
} |
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155 |
result_path.toString |
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156 |
} |
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157 |
else posix_path |
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158 |
|
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159 |
|
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160 |
/* posix_path */ |
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161 |
|
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162 |
def posix_path(jvm_path: String): String = |
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163 |
if (Platform.is_windows) { |
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164 |
val Platform_Root = new Regex("(?i)" + |
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165 |
Pattern.quote(cygwin_root()) + """(?:\\+|\z)(.*)""") |
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166 |
val Drive = new Regex("""([a-zA-Z]):\\*(.*)""") |
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167 |
|
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168 |
jvm_path.replace('/', '\\') match { |
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case Platform_Root(rest) => "/" + rest.replace('\\', '/') |
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case Drive(letter, rest) => |
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"/cygdrive/" + Library.lowercase(letter) + |
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172 |
(if (rest == "") "" else "/" + rest.replace('\\', '/')) |
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173 |
case path => path.replace('\\', '/') |
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174 |
} |
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175 |
} |
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176 |
else jvm_path |
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177 |
|
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178 |
|
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179 |
/* misc path specifications */ |
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180 |
|
43664 | 181 |
def standard_path(path: Path): String = path.expand.implode |
31796 | 182 |
|
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183 |
def platform_path(path: Path): String = jvm_path(standard_path(path)) |
48409 | 184 |
def platform_file(path: Path): JFile = new JFile(platform_path(path)) |
29152 | 185 |
|
45100 | 186 |
def platform_file_url(raw_path: Path): String = |
187 |
{ |
|
188 |
val path = raw_path.expand |
|
189 |
require(path.is_absolute) |
|
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190 |
val s = platform_path(path).replaceAll(" ", "%20") |
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191 |
if (!Platform.is_windows) "file://" + s |
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192 |
else if (s.startsWith("\\\\")) "file:" + s.replace('\\', '/') |
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193 |
else "file:///" + s.replace('\\', '/') |
45100 | 194 |
} |
195 |
||
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|
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197 |
/* source files of Isabelle/ML bootstrap */ |
31436 | 198 |
|
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199 |
def source_file(path: Path): Option[Path] = |
31498 | 200 |
{ |
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201 |
def check(p: Path): Option[Path] = if (p.is_file) Some(p) else None |
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202 |
|
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203 |
if (path.is_absolute || path.is_current) check(path) |
31436 | 204 |
else { |
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205 |
check(Path.explode("~~/src/Pure") + path) orElse |
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206 |
(if (getenv("ML_SOURCES") == "") None else check(Path.explode("$ML_SOURCES") + path)) |
31436 | 207 |
} |
208 |
} |
|
209 |
||
210 |
||
32450 | 211 |
|
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/** external processes **/ |
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213 |
|
50651 | 214 |
/* raw execute for bootstrapping */ |
215 |
||
216 |
private def raw_execute(cwd: JFile, env: Map[String, String], redirect: Boolean, args: String*) |
|
217 |
: Process = |
|
218 |
{ |
|
219 |
val cmdline = new java.util.LinkedList[String] |
|
220 |
for (s <- args) cmdline.add(s) |
|
221 |
||
222 |
val proc = new ProcessBuilder(cmdline) |
|
223 |
if (cwd != null) proc.directory(cwd) |
|
224 |
if (env != null) { |
|
225 |
proc.environment.clear |
|
226 |
for ((x, y) <- env) proc.environment.put(x, y) |
|
227 |
} |
|
228 |
proc.redirectErrorStream(redirect) |
|
229 |
proc.start |
|
230 |
} |
|
231 |
||
232 |
private def process_output(proc: Process): (String, Int) = |
|
233 |
{ |
|
234 |
proc.getOutputStream.close |
|
235 |
val output = File.read(proc.getInputStream) |
|
236 |
val rc = |
|
237 |
try { proc.waitFor } |
|
238 |
finally { |
|
239 |
proc.getInputStream.close |
|
240 |
proc.getErrorStream.close |
|
241 |
proc.destroy |
|
242 |
Thread.interrupted |
|
243 |
} |
|
244 |
(output, rc) |
|
245 |
} |
|
246 |
||
247 |
||
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248 |
/* plain execute */ |
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249 |
|
48409 | 250 |
def execute_env(cwd: JFile, env: Map[String, String], redirect: Boolean, args: String*): Process = |
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251 |
{ |
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252 |
val cmdline = |
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253 |
if (Platform.is_windows) List(cygwin_root() + "\\bin\\env.exe") ++ args |
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254 |
else args |
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255 |
val env1 = if (env == null) settings else settings ++ env |
50651 | 256 |
raw_execute(cwd, env1, redirect, cmdline: _*) |
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257 |
} |
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258 |
|
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259 |
def execute(redirect: Boolean, args: String*): Process = |
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260 |
execute_env(null, null, redirect, args: _*) |
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261 |
|
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262 |
|
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263 |
/* managed process */ |
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264 |
|
48409 | 265 |
class Managed_Process(cwd: JFile, env: Map[String, String], redirect: Boolean, args: String*) |
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266 |
{ |
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267 |
private val params = |
43606 | 268 |
List(standard_path(Path.explode("~~/lib/scripts/process")), "group", "-", "no_script") |
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269 |
private val proc = execute_env(cwd, env, redirect, (params ++ args):_*) |
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270 |
|
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271 |
|
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|
272 |
// channels |
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273 |
|
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274 |
val stdin: BufferedWriter = |
50203 | 275 |
new BufferedWriter(new OutputStreamWriter(proc.getOutputStream, UTF8.charset)) |
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276 |
|
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277 |
val stdout: BufferedReader = |
50203 | 278 |
new BufferedReader(new InputStreamReader(proc.getInputStream, UTF8.charset)) |
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279 |
|
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280 |
val stderr: BufferedReader = |
50203 | 281 |
new BufferedReader(new InputStreamReader(proc.getErrorStream, UTF8.charset)) |
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282 |
|
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|
283 |
|
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|
284 |
// signals |
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285 |
|
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286 |
private val pid = stdout.readLine |
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|
287 |
|
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|
288 |
private def kill(signal: String): Boolean = |
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|
289 |
{ |
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|
290 |
execute(true, "kill", "-" + signal, "-" + pid).waitFor |
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|
291 |
execute(true, "kill", "-0", "-" + pid).waitFor == 0 |
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292 |
} |
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293 |
|
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294 |
private def multi_kill(signal: String): Boolean = |
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295 |
{ |
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296 |
var running = true |
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297 |
var count = 10 |
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298 |
while (running && count > 0) { |
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299 |
if (kill(signal)) { |
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300 |
Thread.sleep(100) |
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|
301 |
count -= 1 |
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302 |
} |
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303 |
else running = false |
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304 |
} |
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305 |
running |
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306 |
} |
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|
307 |
|
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308 |
def interrupt() { multi_kill("INT") } |
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309 |
def terminate() { multi_kill("INT") && multi_kill("TERM") && kill("KILL"); proc.destroy } |
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310 |
|
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311 |
|
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312 |
// JVM shutdown hook |
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313 |
|
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314 |
private val shutdown_hook = new Thread { override def run = terminate() } |
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315 |
|
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316 |
try { Runtime.getRuntime.addShutdownHook(shutdown_hook) } |
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317 |
catch { case _: IllegalStateException => } |
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|
318 |
|
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319 |
private def cleanup() = |
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320 |
try { Runtime.getRuntime.removeShutdownHook(shutdown_hook) } |
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|
321 |
catch { case _: IllegalStateException => } |
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|
322 |
|
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|
323 |
|
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|
324 |
/* result */ |
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325 |
|
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def join: Int = { val rc = proc.waitFor; cleanup(); rc } |
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327 |
} |
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328 |
|
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329 |
|
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330 |
/* bash */ |
31796 | 331 |
|
48409 | 332 |
def bash_env(cwd: JFile, env: Map[String, String], script: String): (String, String, Int) = |
34198
ff5486262cd6
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333 |
{ |
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334 |
File.with_tmp_file("isabelle_script") { script_file => |
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335 |
File.write(script_file, script) |
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336 |
val proc = new Managed_Process(cwd, env, false, "bash", posix_path(script_file.getPath)) |
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337 |
|
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338 |
proc.stdin.close |
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339 |
val (_, stdout) = Simple_Thread.future("bash_stdout") { File.read(proc.stdout) } |
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340 |
val (_, stderr) = Simple_Thread.future("bash_stderr") { File.read(proc.stderr) } |
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|
341 |
|
39581
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refined Isabelle_System.bash_output: pass pid via stdout, separate stdout/stderr;
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342 |
val rc = |
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343 |
try { proc.join } |
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344 |
catch { case e: InterruptedException => Thread.interrupted; proc.terminate; 130 } |
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345 |
(stdout.join, stderr.join, rc) |
34198
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moved Library.decode_permissive_utf8 to Isabelle_System;
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|
346 |
} |
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|
347 |
} |
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|
348 |
|
48353
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|
349 |
def bash(script: String): (String, String, Int) = bash_env(null, null, script) |
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|
350 |
|
39583
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351 |
|
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352 |
/* system tools */ |
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353 |
|
31818
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builtin isabelle_tool for ML and Scala -- avoids excessive shell script (especially important for Cygwin);
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|
354 |
def isabelle_tool(name: String, args: String*): (String, Int) = |
31498 | 355 |
{ |
43669 | 356 |
Path.split(getenv_strict("ISABELLE_TOOLS")).find { dir => |
48373 | 357 |
val file = (dir + Path.basic(name)).file |
42124 | 358 |
try { |
359 |
file.isFile && file.canRead && file.canExecute && |
|
360 |
!name.endsWith("~") && !name.endsWith(".orig") |
|
361 |
} |
|
31818
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|
362 |
catch { case _: SecurityException => false } |
34200 | 363 |
} match { |
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diff
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|
364 |
case Some(dir) => |
43669 | 365 |
val file = standard_path(dir + Path.basic(name)) |
50651 | 366 |
process_output(execute(true, (List(file) ++ args): _*)) |
31818
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changeset
|
367 |
case None => ("Unknown Isabelle tool: " + name, 2) |
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changeset
|
368 |
} |
28063 | 369 |
} |
370 |
||
371 |
||
32450 | 372 |
|
31796 | 373 |
/** Isabelle resources **/ |
374 |
||
32328 | 375 |
/* components */ |
376 |
||
43669 | 377 |
def components(): List[Path] = |
378 |
Path.split(getenv_strict("ISABELLE_COMPONENTS")) |
|
32328 | 379 |
|
380 |
||
50403
87868964733c
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changeset
|
381 |
/* logic images */ |
29152 | 382 |
|
48503 | 383 |
def find_logics_dirs(): List[Path] = |
31498 | 384 |
{ |
48503 | 385 |
val ml_ident = Path.explode("$ML_IDENTIFIER").expand |
386 |
Path.split(getenv_strict("ISABELLE_PATH")).map(_ + ml_ident) |
|
29152 | 387 |
} |
29570 | 388 |
|
48503 | 389 |
def find_logics(): List[String] = |
390 |
(for { |
|
391 |
dir <- find_logics_dirs() |
|
392 |
files = dir.file.listFiles() if files != null |
|
393 |
file <- files.toList if file.isFile } yield file.getName).sorted |
|
394 |
||
50403
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|
395 |
def default_logic(args: String*): String = |
87868964733c
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changeset
|
396 |
{ |
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|
397 |
args.find(_ != "") match { |
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more uniform default logic, using settings, options, args etc.;
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changeset
|
398 |
case Some(logic) => logic |
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changeset
|
399 |
case None => Isabelle_System.getenv_strict("ISABELLE_LOGIC") |
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more uniform default logic, using settings, options, args etc.;
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changeset
|
400 |
} |
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changeset
|
401 |
} |
87868964733c
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wenzelm
parents:
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diff
changeset
|
402 |
|
29570 | 403 |
|
34024 | 404 |
/* fonts */ |
405 |
||
43484 | 406 |
def get_font(family: String = "IsabelleText", size: Int = 1, bold: Boolean = false): Font = |
407 |
new Font(family, if (bold) Font.BOLD else Font.PLAIN, size) |
|
37367 | 408 |
|
34044
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slightly more robust and less ambitious version of install_fonts;
wenzelm
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diff
changeset
|
409 |
def install_fonts() |
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wenzelm
parents:
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diff
changeset
|
410 |
{ |
37367 | 411 |
val ge = GraphicsEnvironment.getLocalGraphicsEnvironment() |
49449 | 412 |
for (font <- Path.split(getenv_strict("ISABELLE_FONTS"))) |
48373 | 413 |
ge.registerFont(Font.createFont(Font.TRUETYPE_FONT, font.file)) |
49449 | 414 |
} |
49334 | 415 |
|
49449 | 416 |
def install_fonts_jfx() |
417 |
{ |
|
418 |
for (font <- Path.split(getenv_strict("ISABELLE_FONTS"))) { |
|
49334 | 419 |
val stream = new BufferedInputStream(new FileInputStream(font.file)) |
420 |
try { javafx.scene.text.Font.loadFont(stream, 1.0) } |
|
421 |
finally { stream.close } |
|
422 |
} |
|
34024 | 423 |
} |
27919 | 424 |
} |