FindMatlab: Rewrite module and provide a usage API

Implement a brand new FindMatlab module:

- Add support for versions and components.
- Find Matlab and its version in a more precise and multiplatform way.
- Add API to create a new mex extension with documentation.
- Add API to add matlab unit tests (with or without the unit test framework).
- Find as much as possible based on a single Matlab_ROOT_DIR cache entry
  and allow the user to change it to re-find everything.

8 files changed, 68 insertions, 0 deletions

diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index 1bcc3f3..7cbc9fe 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -211,3 +211,8 @@ if(RPMBUILD_EXECUTABLE)
 endif()
 
 add_RunCMake_test(COMPILE_LANGUAGE-genex)
+
+# Matlab module related tests
+if(CMake_TEST_FindMatlab)
+  add_RunCMake_test(FindMatlab)
+endif()
diff --git a/Tests/RunCMake/FindMatlab/CMakeLists.txt b/Tests/RunCMake/FindMatlab/CMakeLists.txt
new file mode 100644
index 0000000..1b9a957
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/CMakeLists.txt
@@ -0,0 +1,3 @@
+
+cmake_minimum_required(VERSION 2.8.12)
+include(${RunCMake_TEST}.cmake)
diff --git a/Tests/RunCMake/FindMatlab/MatlabTest1-result.txt b/Tests/RunCMake/FindMatlab/MatlabTest1-result.txt
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/MatlabTest1-result.txt
@@ -0,0 +1 @@
+1
diff --git a/Tests/RunCMake/FindMatlab/MatlabTest1-stderr.txt b/Tests/RunCMake/FindMatlab/MatlabTest1-stderr.txt
new file mode 100644
index 0000000..95a787f
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/MatlabTest1-stderr.txt
@@ -0,0 +1,2 @@
+CMake Error at .*FindMatlab.cmake:[0-9]+ \(message\):
+  \[MATLAB\] This functionality needs the MAIN_PROGRAM component \(not default\)
diff --git a/Tests/RunCMake/FindMatlab/MatlabTest1.cmake b/Tests/RunCMake/FindMatlab/MatlabTest1.cmake
new file mode 100644
index 0000000..1cbc1c2
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/MatlabTest1.cmake
@@ -0,0 +1,22 @@
+
+cmake_minimum_required (VERSION 2.8.12)
+enable_testing()
+project(test_should_fail)
+
+find_package(Matlab REQUIRED COMPONENTS MX_LIBRARY)
+
+matlab_add_mex(
+    # target name
+    NAME cmake_matlab_test_wrapper1
+    # output name
+    OUTPUT_NAME cmake_matlab_mex1
+    SRC ${CMAKE_CURRENT_SOURCE_DIR}/matlab_wrapper1.cpp
+  )
+
+# this command should raise a FATAL_ERROR, component MAIN_PROGRAM is missing
+matlab_add_unit_test(
+    NAME ${PROJECT_NAME}_matlabtest-1
+    TIMEOUT 1
+    UNITTEST_FILE ${CMAKE_CURRENT_SOURCE_DIR}/cmake_matlab_unit_tests2.m
+    ADDITIONAL_PATH $<TARGET_FILE_DIR:cmake_matlab_test_wrapper1>
+    )
diff --git a/Tests/RunCMake/FindMatlab/RunCMakeTest.cmake b/Tests/RunCMake/FindMatlab/RunCMakeTest.cmake
new file mode 100644
index 0000000..33dbb77
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/RunCMakeTest.cmake
@@ -0,0 +1,3 @@
+
+include(RunCMake)
+run_cmake(MatlabTest1)
diff --git a/Tests/RunCMake/FindMatlab/cmake_matlab_unit_tests2.m b/Tests/RunCMake/FindMatlab/cmake_matlab_unit_tests2.m
new file mode 100644
index 0000000..7a8a342
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/cmake_matlab_unit_tests2.m
@@ -0,0 +1,6 @@
+
+ret = cmake_matlab_mex1(rand(3,3));
+
+if(size(ret) ~= size(rand(3,3)))
+  error('Dimension mismatch!');
+end
diff --git a/Tests/RunCMake/FindMatlab/matlab_wrapper1.cpp b/Tests/RunCMake/FindMatlab/matlab_wrapper1.cpp
new file mode 100644
index 0000000..4149bb9
--- /dev/null
+++ b/Tests/RunCMake/FindMatlab/matlab_wrapper1.cpp
@@ -0,0 +1,26 @@
+
+// simple workaround to some compiler specific problems
+// see http://stackoverflow.com/questions/22367516/mex-compile-error-unknown-type-name-char16-t/23281916#23281916
+#include <algorithm>
+
+#include "mex.h"
+
+// this test should return a matrix of 10 x 10 and should check some of the arguments
+
+void mexFunction(const int nlhs, mxArray *plhs[], const int nrhs, const mxArray *prhs[])
+{
+  if(nrhs != 1)
+  {
+    mexErrMsgTxt("Incorrect arguments");
+  }
+
+  size_t dim1 = mxGetM(prhs[0]);
+  size_t dim2 = mxGetN(prhs[0]);
+
+  if(dim1 == 1 || dim2 == 1)
+  {
+    mexErrMsgIdAndTxt("cmake_matlab:configuration", "Incorrect arguments");
+  }
+
+  plhs[0] = mxCreateNumericMatrix(dim1, dim2, mxGetClassID(prhs[0]), mxREAL);
+}