ENH: basic usage test for git macros

cmake/blt-test/CMakeLists.txt

@@ -64,8 +64,8 @@ blt_add_library( NAME example
                  )
 
 ################################
-# Add an executable 
-# (which happens to be a test) 
+# Add an executable
+# (which happens to be a test)
 ################################
 blt_add_executable(
          NAME t_example_smoke
@@ -95,3 +95,61 @@ blt_add_executable(
 
 blt_add_test(NAME t_header_only_smoke
              COMMAND t_header_only_smoke)
+
+####################
+# Git Macros test
+####################
+if ( Git_FOUND )
+
+  blt_is_git_repo( OUTPUT_STATE is_git_repo
+                   SOURCE_DIR ${PROJECT_SOURCE_DIR} )
+
+  if ( ${is_git_repo} )
+
+    ## get the latest tag from the master branch
+    blt_git_tag( OUTPUT_TAG blt_tag
+                 RETURN_CODE rc
+                 ON_BRANCH master
+                 SOURCE_DIR ${PROJECT_SOURCE_DIR}
+                 )
+    if ( NOT ${rc} EQUAL 0 )
+      message(FATAL_ERROR "blt_git_tag failed!")
+    endif()
+
+    ## get the name of the current (i.e., checked out) branch
+    blt_git_branch( BRANCH_NAME blt_branch
+                    RETURN_CODE rc
+                    SOURCE_DIR ${PROJECT_SOURCE_DIR}
+                    )
+    if ( NOT ${rc} EQUAL 0 )
+      message(FATAL_ERROR "blt_git_branch failed!" )
+    endif()
+
+    ## get sha1 at the tip of the current branch
+    blt_git_hashcode ( HASHCODE blt_sha1
+                       RETURN_CODE rc
+                       SOURCE_DIR ${PROJECT_SOURCE_DIR}
+                       )
+    if ( NOT ${rc} EQUAL 0 )
+      message(FATAL_ERROR "blt_git_hashcode failed!")
+    endif()
+
+    set(BLT_TEST_TAG ${blt_tag})
+    set(BLT_TEST_SHA1 ${blt_sha1})
+    set(BLT_TEST_BRANCH ${blt_branch})
+
+    configure_file( src/t_git_macros_smoke.cpp.in
+                    ${CMAKE_BINARY_DIR}/t_git_macros_smoke.cpp )
+
+    blt_add_executable(
+      NAME t_git_macros_smoke
+      SOURCES "${CMAKE_BINARY_DIR}/t_git_macros_smoke.cpp"
+      DEPENDS_ON gtest
+      )
+
+    blt_add_test( NAME t_git_macros_smoke
+                  COMMAND t_git_macros_smoke )
+
+  endif() # endif is_git_repo
+
+endif() # endif Git_FOUND

cmake/blt-test/src/t_git_macros_smoke.cpp.in

@@ -0,0 +1,57 @@
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
+// Copyright (c) 2017, Lawrence Livermore National Security, LLC.
+//
+// Produced at the Lawrence Livermore National Laboratory
+//
+// LLNL-CODE-725085
+//
+// All rights reserved.
+//
+// This file is part of BLT.
+//
+// For additional details, please also read BLT/LICENSE.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// * Redistributions of source code must retain the above copyright notice,
+//   this list of conditions and the disclaimer below.
+//
+// * Redistributions in binary form must reproduce the above copyright notice,
+//   this list of conditions and the disclaimer (as noted below) in the
+//   documentation and/or other materials provided with the distribution.
+//
+// * Neither the name of the LLNS/LLNL nor the names of its contributors may
+//   be used to endorse or promote products derived from this software without
+//   specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL LAWRENCE LIVERMORE NATIONAL SECURITY,
+// LLC, THE U.S. DEPARTMENT OF ENERGY OR CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+// IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~//
+#include "gtest/gtest.h"
+
+#include <iostream> // for cout
+
+#define BLT_TEST_TAG "@BLT_TEST_TAG@"
+#define BLT_TEST_SHA1 "@BLT_TEST_SHA1@"
+#define BLT_TEST_BRANCH "@BLT_TEST_BRANCH@"
+
+TEST( blt_git_macros_smoke, basic_usage_test )
+{
+  std::cout << "TAG = " << BLT_TEST_TAG << std::endl;
+  std::cout << "SHA1 = " << BLT_TEST_SHA1 << std::endl;
+  std::cout << "BRANCH = " << BLT_TEST_BRANCH << std::endl;
+}
+
+