is_exe: array

Author: scivision

+stdlib/+native/is_exe.m

@@ -3,19 +3,21 @@
 y = isfile(file);
 
 if ispc()
-  y = y && stdlib.native.has_windows_executable_suffix(file);
+  y = y & stdlib.native.has_windows_executable_suffix(file);
 end
 
-if ~y, return, end
+if ~any(y)
+  return
+end
 
 if isunix
   props = ["UserExecute", "GroupExecute", "OtherExecute"];
 else
   props = "Readable";
 end
 
-t = getPermissions(filePermissions(file), props);
+t = getPermissions(filePermissions(file(y)), props);
 
-y = any(t{1, :});
+y(y) = any(t{:, :}, 2);
 
 end

+stdlib/is_exe.m

@@ -4,13 +4,17 @@
 
 function y = is_exe(file, backend)
 arguments
-  file {mustBeTextScalar}
+  file string
   backend (1,:) string = ["java", "python", "native", "legacy"]
 end
 
 % Java or Python ~ 100x faster than Matlab native
-fun = hbackend(backend, "is_exe", 'R2025a');
+[fun, b] = hbackend(backend, "is_exe", 'R2025a');
 
-y = fun(file);
+if isscalar(file) || b == "native"
+  y = fun(file);
+else
+  y = arrayfun(fun, file);
+end
 
 end

test/TestIsExe.m

@@ -32,6 +32,21 @@ function test_is_exe(tc, p, backend)
 end
 
 
+function test_is_exe_array(tc, backend)
+try
+  n = fullfile(matlabroot, "bin/matlab");
+  if ispc()
+    n = n + ".exe";
+  end
+  r = stdlib.is_exe(["Readme.md", tempname(), n], backend);
+  tc.verifyEqual(r, [false, false, true])
+catch e
+  tc.verifyEqual(e.identifier, 'stdlib:hbackend:NameError', e.message)
+end
+
+end
+
+
 function test_is_executable_binary(tc, peb)
 
 b = stdlib.is_executable_binary(peb{1});

test/TestWhich.m

@@ -31,7 +31,7 @@ function test_which_name(tc)
 for n = names
   exe = stdlib.which(n);
   tc.verifyNotEmpty(exe, "Executable not found: " + n)
-  tc.verifyTrue(isfile(exe), "Executable is not a file: " + n)
+  tc.verifyThat(exe, matlab.unittest.constraints.IsFile, "Executable is not a file: " + n)
   tc.verifyTrue(stdlib.is_exe(exe), "Executable is not executable: " + n)
 end