author | wenzelm |
Tue, 15 Mar 2016 23:59:39 +0100 | |
changeset 62633 | e57416b649d5 |
parent 62616 | b89d4b320464 |
child 63687 | 1134ee401b20 |
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.io.{File => JFile, IOException, BufferedReader, InputStreamReader} |
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import java.nio.file.{Path => JPath, Files, SimpleFileVisitor, FileVisitResult} |
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import java.nio.file.attribute.BasicFileAttributes |
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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 bootstrap_directory( |
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preference: String, envar: String, property: String, description: String): String = |
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{ |
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def check(s: String): Option[String] = |
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if (s != null && s != "") Some(s) else None |
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val value = |
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check(preference) orElse // explicit argument |
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check(System.getenv(envar)) orElse // e.g. inherited from running isabelle tool |
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check(System.getProperty(property)) getOrElse // e.g. via JVM application boot process |
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error("Unknown " + description + " directory") |
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if ((new JFile(value)).isDirectory) value |
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else error("Bad " + description + " directory " + quote(value)) |
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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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def init(isabelle_root: String = "", cygwin_root: String = ""): Unit = synchronized { |
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if (_settings.isEmpty) { |
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import scala.collection.JavaConversions._ |
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val isabelle_root1 = |
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bootstrap_directory(isabelle_root, "ISABELLE_ROOT", "isabelle.root", "Isabelle root") |
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val cygwin_root1 = |
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if (Platform.is_windows) |
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bootstrap_directory(cygwin_root, "CYGWIN_ROOT", "cygwin.root", "Cygwin root") |
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else "" |
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if (Platform.is_windows) Cygwin.init(isabelle_root1, cygwin_root1) |
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def set_cygwin_root() |
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{ |
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if (Platform.is_windows) |
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_settings = Some(_settings.getOrElse(Map.empty) + ("CYGWIN_ROOT" -> cygwin_root1)) |
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} |
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set_cygwin_root() |
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def default(env: Map[String, String], entry: (String, String)): Map[String, String] = |
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if (env.isDefinedAt(entry._1) || entry._2 == "") env |
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else env + entry |
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val env = |
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{ |
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val temp_windows = |
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{ |
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val temp = if (Platform.is_windows) System.getenv("TEMP") else null |
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if (temp != null && temp.contains('\\')) temp else "" |
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} |
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val user_home = System.getProperty("user.home", "") |
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val isabelle_app = System.getProperty("isabelle.app", "") |
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default( |
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default( |
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default(sys.env + ("ISABELLE_JDK_HOME" -> File.standard_path(jdk_home())), |
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"TEMP_WINDOWS" -> temp_windows), |
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"HOME" -> user_home), |
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"ISABELLE_APP" -> "true") |
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} |
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val settings = |
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{ |
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val dump = JFile.createTempFile("settings", null) |
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dump.deleteOnExit |
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try { |
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val cmd1 = |
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if (Platform.is_windows) List(cygwin_root1 + "\\bin\\bash", "-l") else Nil |
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val cmd2 = |
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List(isabelle_root1 + JFile.separator + "bin" + JFile.separator + "isabelle", |
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"getenv", "-d", dump.toString) |
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val (output, rc) = process_output(process(cmd1 ::: cmd2, env = env, redirect = true)) |
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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("\u0000") 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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finally { dump.delete } |
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} |
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_settings = Some(settings) |
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set_cygwin_root() |
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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 |
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else error("Undefined Isabelle environment variable: " + quote(name)) |
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} |
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def cygwin_root(): String = getenv_strict("CYGWIN_ROOT") |
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def library_path(env: Map[String, String], elem: String): Map[String, String] = |
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if (Platform.is_windows) env |
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else { |
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val x = if (Platform.is_macos) "DYLD_LIBRARY_PATH" else "LD_LIBRARY_PATH" |
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env.getOrElse(x, "") match { |
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case "" => env + (x -> elem) |
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case y => env + (x -> (y + ":" + elem)) |
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} |
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} |
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/** file-system operations **/ |
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/* source files of Isabelle/ML bootstrap */ |
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def source_file(path: Path): Option[Path] = |
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{ |
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def check(p: Path): Option[Path] = if (p.is_file) Some(p) else None |
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if (path.is_absolute || path.is_current) check(path) |
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else { |
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check(Path.explode("~~/src/Pure") + path) orElse |
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(if (getenv("ML_SOURCES") == "") None |
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else check(Path.explode("$ML_SOURCES") + path)) |
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} |
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} |
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/* mkdirs */ |
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def mkdirs(path: Path): Unit = |
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if (!path.is_dir) { |
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bash("perl -e \"use File::Path make_path; make_path('" + File.standard_path(path) + "');\"") |
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if (!path.is_dir) error("Failed to create directory: " + quote(File.platform_path(path))) |
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} |
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/* tmp files */ |
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private def isabelle_tmp_prefix(): JFile = |
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{ |
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val path = Path.explode("$ISABELLE_TMP_PREFIX") |
60013 | 190 |
path.file.mkdirs // low-level mkdirs |
60988 | 191 |
File.platform_file(path) |
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192 |
} |
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193 |
|
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def tmp_file[A](name: String, ext: String = ""): JFile = |
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195 |
{ |
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196 |
val suffix = if (ext == "") "" else "." + ext |
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197 |
val file = Files.createTempFile(isabelle_tmp_prefix().toPath, name, suffix).toFile |
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198 |
file.deleteOnExit |
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199 |
file |
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200 |
} |
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201 |
|
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202 |
def with_tmp_file[A](name: String, ext: String = "")(body: JFile => A): A = |
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203 |
{ |
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204 |
val file = tmp_file(name, ext) |
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try { body(file) } finally { file.delete } |
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206 |
} |
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|
207 |
|
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208 |
|
56477 | 209 |
/* tmp dirs */ |
210 |
||
211 |
def rm_tree(root: JFile) |
|
212 |
{ |
|
213 |
root.delete |
|
214 |
if (root.isDirectory) { |
|
215 |
Files.walkFileTree(root.toPath, |
|
216 |
new SimpleFileVisitor[JPath] { |
|
217 |
override def visitFile(file: JPath, attrs: BasicFileAttributes): FileVisitResult = |
|
218 |
{ |
|
219 |
Files.delete(file) |
|
220 |
FileVisitResult.CONTINUE |
|
221 |
} |
|
222 |
||
223 |
override def postVisitDirectory(dir: JPath, e: IOException): FileVisitResult = |
|
224 |
{ |
|
225 |
if (e == null) { |
|
226 |
Files.delete(dir) |
|
227 |
FileVisitResult.CONTINUE |
|
228 |
} |
|
229 |
else throw e |
|
230 |
} |
|
231 |
} |
|
232 |
) |
|
233 |
} |
|
234 |
} |
|
235 |
||
236 |
def tmp_dir(name: String): JFile = |
|
237 |
{ |
|
238 |
val dir = Files.createTempDirectory(isabelle_tmp_prefix().toPath, name).toFile |
|
239 |
dir.deleteOnExit |
|
240 |
dir |
|
241 |
} |
|
242 |
||
243 |
def with_tmp_dir[A](name: String)(body: JFile => A): A = |
|
244 |
{ |
|
245 |
val dir = tmp_dir(name) |
|
246 |
try { body(dir) } finally { rm_tree(dir) } |
|
247 |
} |
|
248 |
||
249 |
||
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|
251 |
/** external processes **/ |
|
252 |
||
253 |
/* raw process */ |
|
254 |
||
255 |
def process(command_line: List[String], |
|
256 |
cwd: JFile = null, |
|
257 |
env: Map[String, String] = settings(), |
|
258 |
redirect: Boolean = false): Process = |
|
259 |
{ |
|
260 |
val proc = new ProcessBuilder |
|
261 |
proc.command(command_line:_*) // fragile on Windows |
|
262 |
if (cwd != null) proc.directory(cwd) |
|
263 |
proc.environment.clear; for ((x, y) <- env) proc.environment.put(x, y) |
|
264 |
proc.redirectErrorStream(redirect) |
|
265 |
proc.start |
|
266 |
} |
|
267 |
||
268 |
def process_output(proc: Process): (String, Int) = |
|
269 |
{ |
|
270 |
proc.getOutputStream.close |
|
271 |
||
272 |
val output = File.read_stream(proc.getInputStream) |
|
273 |
val rc = |
|
274 |
try { proc.waitFor } |
|
275 |
finally { |
|
276 |
proc.getInputStream.close |
|
277 |
proc.getErrorStream.close |
|
278 |
proc.destroy |
|
279 |
Thread.interrupted |
|
280 |
} |
|
281 |
(output, rc) |
|
282 |
} |
|
61025 | 283 |
|
284 |
def kill(signal: String, group_pid: String): (String, Int) = |
|
285 |
{ |
|
286 |
val bash = |
|
61291 | 287 |
if (Platform.is_windows) List(cygwin_root() + "\\bin\\bash.exe") |
61025 | 288 |
else List("/usr/bin/env", "bash") |
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289 |
process_output(process(bash ::: List("-c", "kill -" + signal + " -" + group_pid))) |
61025 | 290 |
} |
291 |
||
292 |
||
62613 | 293 |
/* GNU bash */ |
31796 | 294 |
|
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295 |
def bash(script: String, |
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296 |
cwd: JFile = null, |
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297 |
env: Map[String, String] = settings(), |
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298 |
redirect: Boolean = false, |
51962
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|
299 |
progress_stdout: String => Unit = (_: String) => (), |
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300 |
progress_stderr: String => Unit = (_: String) => (), |
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301 |
progress_limit: Option[Long] = None, |
62602 | 302 |
strict: Boolean = true, |
303 |
cleanup: () => Unit = () => ()): Process_Result = |
|
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|
304 |
{ |
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|
305 |
Bash.process(script, cwd = cwd, env = env, redirect = redirect, cleanup = cleanup). |
62602 | 306 |
result(progress_stdout, progress_stderr, progress_limit, strict) |
34198
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|
307 |
} |
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changeset
|
308 |
|
54690 | 309 |
def open(arg: String): Unit = |
62616 | 310 |
bash("exec \"$ISABELLE_OPEN\" " + File.bash_string(arg) + " >/dev/null 2>/dev/null &") |
54690 | 311 |
|
312 |
def pdf_viewer(arg: Path): Unit = |
|
62616 | 313 |
bash("exec \"$PDF_VIEWER\" " + File.bash_path(arg) + " >/dev/null 2>/dev/null &") |
54690 | 314 |
|
62615 | 315 |
def hg(cmd_line: String, cwd: JFile = null): Process_Result = |
316 |
bash("\"${HG:-hg}\" " + cmd_line, cwd = cwd) |
|
28063 | 317 |
|
32450 | 318 |
|
62400 | 319 |
|
31796 | 320 |
/** Isabelle resources **/ |
321 |
||
32328 | 322 |
/* components */ |
323 |
||
43669 | 324 |
def components(): List[Path] = |
325 |
Path.split(getenv_strict("ISABELLE_COMPONENTS")) |
|
32328 | 326 |
|
327 |
||
62633 | 328 |
/* default logic */ |
48503 | 329 |
|
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changeset
|
330 |
def default_logic(args: String*): String = |
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|
331 |
{ |
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|
332 |
args.find(_ != "") match { |
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|
333 |
case Some(logic) => logic |
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|
334 |
case None => Isabelle_System.getenv_strict("ISABELLE_LOGIC") |
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changeset
|
335 |
} |
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changeset
|
336 |
} |
27919 | 337 |
} |