7 files changed, 125 insertions, 2 deletions
diff --git a/Source/cmLocalNinjaGenerator.cxx b/Source/cmLocalNinjaGenerator.cxx
index d95a213..f1d5e2c 100644
--- a/Source/cmLocalNinjaGenerator.cxx
+++ b/Source/cmLocalNinjaGenerator.cxx
@@ -318,9 +318,13 @@ void cmLocalNinjaGenerator::AppendCustomCommandLines(const cmCustomCommand *cc,
     cdCmd << cdStr << this->ConvertToOutputFormat(wd, SHELL);
     cmdLines.push_back(cdCmd.str());
   }
+
+  std::string launcher = this->MakeCustomLauncher(*cc);
+
   for (unsigned i = 0; i != ccg.GetNumberOfCommands(); ++i) {
-    cmdLines.push_back(this->ConvertToOutputFormat(ccg.GetCommand(i).c_str(),
-                                                   SHELL));
+    cmdLines.push_back(launcher +
+      this->ConvertToOutputFormat(ccg.GetCommand(i).c_str(), SHELL));
+
     std::string& cmd = cmdLines.back();
     ccg.AppendArguments(i, cmd);
   }
@@ -407,3 +411,39 @@ void cmLocalNinjaGenerator::WriteCustomCommandBuildStatements()
     this->WriteCustomCommandBuildStatement(i->first, ccTargetDeps);
   }
 }
+
+std::string cmLocalNinjaGenerator::MakeCustomLauncher(
+  const cmCustomCommand& cc)
+{
+  const char* property = "RULE_LAUNCH_CUSTOM";
+  const char* property_value = this->Makefile->GetProperty(property);
+
+  if(!property_value || !*property_value)
+  {
+    return std::string();
+  }
+
+  // Expand rules in the empty string.  It may insert the launcher and
+  // perform replacements.
+  RuleVariables vars;
+  vars.RuleLauncher = property;
+  std::string output;
+  const std::vector<std::string>& outputs = cc.GetOutputs();
+  if(!outputs.empty())
+  {
+    RelativeRoot relative_root =
+      cc.GetWorkingDirectory() ? NONE : START_OUTPUT;
+
+    output = this->Convert(outputs[0].c_str(), relative_root, SHELL);
+  }
+  vars.Output = output.c_str();
+
+  std::string launcher;
+  this->ExpandRuleVariables(launcher, vars);
+  if(!launcher.empty())
+  {
+    launcher += " ";
+  }
+
+  return launcher;
+}
diff --git a/Source/cmLocalNinjaGenerator.h b/Source/cmLocalNinjaGenerator.h
index c450841..8eb63c5 100644
--- a/Source/cmLocalNinjaGenerator.h
+++ b/Source/cmLocalNinjaGenerator.h
@@ -121,6 +121,7 @@ private:
 
   void WriteCustomCommandBuildStatements();
 
+  std::string MakeCustomLauncher(const cmCustomCommand& cc);
 
   std::string ConfigName;
   std::string HomeRelativeOutputPath;
diff --git a/Tests/CMakeLists.txt b/Tests/CMakeLists.txt
index 4b08c88..7c939ed 100644
--- a/Tests/CMakeLists.txt
+++ b/Tests/CMakeLists.txt
@@ -2344,6 +2344,17 @@ ${CMake_BINARY_DIR}/bin/cmake -DVERSION=master -P ${CMake_SOURCE_DIR}/Utilities/
       --output-log "${CMake_BINARY_DIR}/Tests/CTestTest2/testOutput.log"
       )
 
+    if("${CMAKE_TEST_GENERATOR}" MATCHES "Makefiles" OR "${CMAKE_TEST_GENERATOR}" MATCHES "Ninja")
+      configure_file("${CMake_SOURCE_DIR}/Tests/CTestTestLaunchers/test.cmake.in"
+        "${CMake_BINARY_DIR}/Tests/CTestTestLaunchers/test.cmake" @ONLY ESCAPE_QUOTES)
+      add_test(CTestTestLaunchers ${CMAKE_CTEST_COMMAND}
+        -S "${CMake_BINARY_DIR}/Tests/CTestTestLaunchers/test.cmake" -V
+        --output-log "${CMake_BINARY_DIR}/Tests/CTestTestLaunchers/testOutput.log"
+        )
+      set_tests_properties(CTestTestLaunchers PROPERTIES
+        PASS_REGULAR_EXPRESSION "CTEST_TEST_LAUNCHER_SUCCESS")
+    endif()
+
     configure_file("${CMake_SOURCE_DIR}/Tests/CTestTestChecksum/test.cmake.in"
       "${CMake_BINARY_DIR}/Tests/CTestTestChecksum/test.cmake" @ONLY
       ESCAPE_QUOTES)
diff --git a/Tests/CTestTestLaunchers/launcher_test_project/CMakeLists.txt b/Tests/CTestTestLaunchers/launcher_test_project/CMakeLists.txt
new file mode 100644
index 0000000..06c5725
--- /dev/null
+++ b/Tests/CTestTestLaunchers/launcher_test_project/CMakeLists.txt
@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 2.8.12)
+
+project(launcher_test_project)
+
+include(CTest)
+
+add_custom_command(
+  OUTPUT test1.txt
+  COMMAND ${CMAKE_COMMAND}
+  ARGS -DTESTID=1 -P "${CMAKE_CURRENT_SOURCE_DIR}/command.cmake"
+)
+
+add_custom_command(
+  OUTPUT test2.txt
+  COMMAND ${CMAKE_COMMAND}
+  ARGS -DTESTID=2 -P "${CMAKE_CURRENT_SOURCE_DIR}/command.cmake"
+)
+
+add_custom_target(mytarget ALL DEPENDS test1.txt test2.txt)
diff --git a/Tests/CTestTestLaunchers/launcher_test_project/CTestConfig.cmake b/Tests/CTestTestLaunchers/launcher_test_project/CTestConfig.cmake
new file mode 100644
index 0000000..bf404ab
--- /dev/null
+++ b/Tests/CTestTestLaunchers/launcher_test_project/CTestConfig.cmake
@@ -0,0 +1,8 @@
+set(CTEST_USE_LAUNCHERS 1)
+set(CTEST_PROJECT_NAME "CTestTestLaunchers")
+set(CTEST_NIGHTLY_START_TIME "21:00:00 EDT")
+set(CTEST_DART_SERVER_VERSION "2")
+set(CTEST_DROP_METHOD "http")
+set(CTEST_DROP_SITE "www.cdash.org")
+set(CTEST_DROP_LOCATION "/CDash/submit.php?project=PublicDashboard")
+set(CTEST_DROP_SITE_CDASH TRUE)
diff --git a/Tests/CTestTestLaunchers/launcher_test_project/command.cmake b/Tests/CTestTestLaunchers/launcher_test_project/command.cmake
new file mode 100644
index 0000000..7f31af9
--- /dev/null
+++ b/Tests/CTestTestLaunchers/launcher_test_project/command.cmake
@@ -0,0 +1,5 @@
+if("${TESTID}" STREQUAL "1")
+  message("success")
+elseif("${TESTID}" STREQUAL "2")
+  message(FATAL_ERROR "failure")
+endif()
diff --git a/Tests/CTestTestLaunchers/test.cmake.in b/Tests/CTestTestLaunchers/test.cmake.in
new file mode 100644
index 0000000..43a6533
--- /dev/null
+++ b/Tests/CTestTestLaunchers/test.cmake.in
@@ -0,0 +1,39 @@
+cmake_minimum_required(VERSION 2.8.12)
+
+# Settings:
+set(CTEST_DASHBOARD_SOURCE              "@CMake_SOURCE_DIR@/Tests/CTestTestLaunchers")
+set(CTEST_DASHBOARD_ROOT                "@CMake_BINARY_DIR@/Tests/CTestTestLaunchers")
+set(CTEST_SITE                          "@SITE@")
+set(CTEST_BUILD_NAME                    "Launchers-@BUILDNAME@-CTestTestLaunchers")
+
+set(CTEST_SOURCE_DIRECTORY              "${CTEST_DASHBOARD_SOURCE}/launcher_test_project")
+set(CTEST_BINARY_DIRECTORY              "${CTEST_DASHBOARD_ROOT}/launcher_test_project-bin")
+set(CTEST_CMAKE_GENERATOR               "@CMAKE_GENERATOR@")
+set(CTEST_CMAKE_GENERATOR_TOOLSET       "@CMAKE_GENERATOR_TOOLSET@")
+set(CTEST_BUILD_CONFIGURATION           "$ENV{CMAKE_CONFIG_TYPE}")
+set(CTEST_NOTES_FILES                   "${CTEST_SCRIPT_DIRECTORY}/${CTEST_SCRIPT_NAME}")
+
+ctest_empty_binary_directory(${CTEST_BINARY_DIRECTORY})
+
+file(WRITE "${CTEST_BINARY_DIRECTORY}/CMakeCache.txt" "
+CMAKE_CXX_FLAGS:STRING=@CMAKE_CXX_FLAGS@
+CMAKE_C_FLAGS:STRING=@CMAKE_C_FLAGS@
+CMAKE_C_COMPILER:STRING=@CMAKE_C_COMPILER@
+CMAKE_CXX_COMPILER:STRING=@CMAKE_CXX_COMPILER@
+CMAKE_C_COMPILER_ARG1:STRING=@CMAKE_C_COMPILER_ARG1@
+CMAKE_CXX_COMPILER_ARG1:STRING=@CMAKE_CXX_COMPILER_ARG1@
+")
+
+set(TEST_SUCCESS FALSE)
+
+ctest_start(Experimental)
+ctest_configure(OPTIONS "-DCTEST_USE_LAUNCHERS=1")
+ctest_build(NUMBER_ERRORS error_count)
+
+if("${error_count}" STREQUAL "1")
+  set(TEST_SUCCESS TRUE)
+endif()
+
+if(TEST_SUCCESS)
+  message("CTEST_TEST_LAUNCHER_SUCCESS")
+endif()