add inode(). improve samepath test

Author: scivision

+stdlib/device.m

@@ -0,0 +1,23 @@
+%% DEVICE filesystem device index of path
+% requires: java
+% Windows always returns 0, Unix returns device number.
+
+function i = device(path)
+arguments
+  path {mustBeTextScalar}
+end
+
+if stdlib.exists(path)
+  if stdlib.isoctave()
+    [s, err] = stat(path);
+    if err == 0
+      i = s.dev;
+    end
+  else
+    i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:dev", javaLinkOption());
+  end
+else
+  i = [];
+end
+
+end

+stdlib/inode.m

@@ -0,0 +1,25 @@
+%% INODE filesystem inode of path
+% requires: java
+% Windows always returns 0, Unix returns inode number.
+
+function i = inode(path)
+arguments
+  path {mustBeTextScalar}
+end
+
+i = [];
+
+if stdlib.exists(path)
+  if stdlib.isoctave()
+    [s, err] = stat(path);
+    if err == 0
+      i = s.ino;
+    end
+  else
+    i = java.nio.file.Files.getAttribute(javaPathObject(path), "unix:ino", javaLinkOption());
+  end
+else
+  i = [];
+end
+
+end

Readme_java.md

@@ -36,7 +36,7 @@ Get the Java version:
 stdlib.java_version()
 ```
 
-From before Matlab R2019b to at least Matlab R2024b, the Matlab factory Java version is 1.8, which is adequate for all Matlab-stdlib functionality.
+From before Matlab R2019b to at least Matlab R2025a, the Matlab factory Java version is 1.8, which is adequate for all Matlab-stdlib functionality.
 
 If desired (not used by Matlab-stdlib), one can use non-factory Java classes in
 [Matlab](](https://www.mathworks.com/help/matlab/matlab_external/static-path-of-java-class-path.html))
@@ -74,6 +74,12 @@ Tell Matlab to use this JDK from the Matlab console by:
 jenv("/path/to/jdk-17/Contents/Home")
 ```
 
+Or for the Amazon Corretto JDK 11 on macOS:
+
+```matlab
+jenv("/Library/Java/JavaVirtualMachines/amazon-corretto-11.jdk/Contents/Home/")
+```
+
 To
 [revert back to the factory JRE](https://www.mathworks.com/help/matlab/ref/matlab_jenv.html)
 if Matlab can't start or has problems, from system Terminal (not within Matlab):

test/TestFileImpure.m

@@ -4,10 +4,8 @@
 p_is_writable = {{pwd(), true}, {"not-exists", false}, {"", false}};
 
 p_same = {...
-{"","", false}, ...
-{tempname(), tempname(), false}, ...
-{"..", "./..", true}, ...
-{"..", pwd() + "/..", true}}
+{"..", "./.."}, ...
+{"..", pwd() + "/.."}}
 
 ph = {{0, '"stdin"'}, {1, '"stdout"'}, {2, '"stderr"'}, {fopen(tempname()), ''}}
 
@@ -46,8 +44,13 @@ function test_makedir(tc)
 
 %%
 function test_samepath(tc, p_same)
-tc.verifyEqual(stdlib.samepath(p_same{1}, p_same{2}), p_same{3}, ...
-  "samepath(" + p_same{1} + "," + p_same{2} + ")")
+tc.verifyTrue(stdlib.samepath(p_same{1}, p_same{2}))
+end
+
+function test_samepath_notexist(tc)
+tc.verifyFalse(stdlib.samepath("", ""))
+t = tempname();
+tc.verifyFalse(stdlib.samepath(t, t))
 end
 
 

test/TestJava.m

@@ -13,6 +13,22 @@ function java_required(tc)
 
 methods(Test)
 
+function test_inode(tc)
+tc.assumeFalse(ispc(), "not for Windows")
+
+tc.verifyEqual(stdlib.inode("."), stdlib.inode(pwd()))
+tc.verifyEmpty(stdlib.inode(tempname))
+end
+
+
+function test_device(tc)
+tc.assumeFalse(ispc(), "not for Windows")
+
+tc.verifyEqual(stdlib.device("."), stdlib.device(pwd()))
+tc.verifyEmpty(stdlib.device(tempname))
+end
+
+
 function test_filesystem_type(tc, Ps)
 
 s = stdlib.filesystem_type(Ps);