[Truffle] Enough Java Posix to do File.executable?

jruby · Jan 26, 2016 · 570e9b4 · 570e9b4
1 parent e1a7514
commit 570e9b4
Showing 2 changed files with 63 additions and 0 deletions.
diff --git a/truffle/src/main/java/org/jruby/truffle/runtime/TruffleJavaFileStat.java b/truffle/src/main/java/org/jruby/truffle/runtime/TruffleJavaFileStat.java
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved. This
+ * code is released under a tri EPL/GPL/LGPL license. You can use it,
+ * redistribute it and/or modify it under the terms of the:
+ *
+ * Eclipse Public License version 1.0
+ * GNU General Public License version 2
+ * GNU Lesser General Public License version 2.1
+ */
+package org.jruby.truffle.runtime;
+
+import jnr.posix.FileStat;
+import jnr.posix.JavaFileStat;
+import jnr.posix.POSIX;
+import jnr.posix.POSIXHandler;
+
+import java.io.File;
+
+public class TruffleJavaFileStat extends JavaFileStat {
+
+    private boolean executable = false;
+
+    public TruffleJavaFileStat(POSIX posix, POSIXHandler handler) {
+        super(posix, handler);
+    }
+
+    @Override
+    public void setup(String path) {
+        super.setup(path);
+
+        executable = new File(path).canExecute();
+    }
+
+    @Override
+    public int gid() {
+        return 1;
+    }
+
+    @Override
+    public int mode() {
+        int mode = super.mode();
+
+        if (executable) {
+            mode |= FileStat.S_IXOTH;
+        }
+
+        return mode;
+    }
+
+}
diff --git a/truffle/src/main/java/org/jruby/truffle/runtime/TruffleJavaPOSIX.java b/truffle/src/main/java/org/jruby/truffle/runtime/TruffleJavaPOSIX.java
@@ -11,9 +11,11 @@
 
 import jnr.constants.platform.Fcntl;
 import jnr.constants.platform.OpenFlags;
+import jnr.posix.FileStat;
 import jnr.posix.LibC;
 import jnr.posix.POSIX;
 
+import java.io.FileDescriptor;
 import java.io.IOException;
 import java.io.PrintStream;
 import java.nio.ByteBuffer;
@@ -89,4 +91,15 @@ public int pwrite(int fd, byte[] buf, int n, int offset) {
 
         return super.pwrite(fd, buf, n, offset);
     }
+
+    @Override
+    public int getgid() {
+        return 0;
+    }
+
+    @Override
+    public FileStat allocateStat() {
+        return new TruffleJavaFileStat(this, null);
+    }
+
 }