Merge topic 'ctest-run-submodule-sync'

c18d91ad Help: add release notes for topic 'ctest-run-submodule-sync'
7f560743 cmCTestGIT: run `git submodule sync` before updating submodules
06b310b5 cmCTestGIT: add an option to initialize submodules on update
56c1ea40 cmCTestGIT: fix git version references

2 files changed, 45 insertions, 4 deletions

diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index bbb3b9d..1d6bdce 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -273,21 +273,60 @@ bool cmCTestGIT::UpdateImpl()
   std::string top_dir = this->FindTopDir();
   const char* git = this->CommandLineTool.c_str();
   const char* recursive = "--recursive";
+  const char* sync_recursive = "--recursive";
 
-  // Git < 1.6.5.0 did not support --recursive
+  // Git < 1.6.5 did not support submodule --recursive
   if(this->GetGitVersion() < cmCTestGITVersion(1,6,5,0))
     {
     recursive = 0;
-    // No need to require >= 1.6.5.0 if there are no submodules.
+    // No need to require >= 1.6.5 if there are no submodules.
     if(cmSystemTools::FileExists((top_dir + "/.gitmodules").c_str()))
       {
-      this->Log << "Git < 1.6.5.0 cannot update submodules recursively\n";
+      this->Log << "Git < 1.6.5 cannot update submodules recursively\n";
+      }
+    }
+
+  // Git < 1.8.1 did not support sync --recursive
+  if(this->GetGitVersion() < cmCTestGITVersion(1,8,1,0))
+    {
+    sync_recursive = 0;
+    // No need to require >= 1.8.1 if there are no submodules.
+    if(cmSystemTools::FileExists((top_dir + "/.gitmodules").c_str()))
+      {
+      this->Log << "Git < 1.8.1 cannot synchronize submodules recursively\n";
       }
     }
 
-  char const* git_submodule[] = {git, "submodule", "update", recursive, 0};
   OutputLogger submodule_out(this->Log, "submodule-out> ");
   OutputLogger submodule_err(this->Log, "submodule-err> ");
+
+  bool ret;
+
+  std::string init_submodules =
+    this->CTest->GetCTestConfiguration("GITInitSubmodules");
+  if (cmSystemTools::IsOn(init_submodules.c_str()))
+    {
+    char const* git_submodule_init[] = {git, "submodule", "init", 0};
+    ret = this->RunChild(git_submodule_init, &submodule_out, &submodule_err,
+                         top_dir.c_str());
+
+    if (!ret)
+      {
+      return false;
+      }
+    }
+
+  char const* git_submodule_sync[] = {git, "submodule", "sync",
+                                      sync_recursive, 0};
+  ret = this->RunChild(git_submodule_sync, &submodule_out, &submodule_err,
+                       top_dir.c_str());
+
+  if (!ret)
+    {
+    return false;
+    }
+
+  char const* git_submodule[] = {git, "submodule", "update", recursive, 0};
   return this->RunChild(git_submodule, &submodule_out, &submodule_err,
                         top_dir.c_str());
 }
diff --git a/Source/CTest/cmCTestUpdateCommand.cxx b/Source/CTest/cmCTestUpdateCommand.cxx
index dfda9f1..1bf60fc 100644
--- a/Source/CTest/cmCTestUpdateCommand.cxx
+++ b/Source/CTest/cmCTestUpdateCommand.cxx
@@ -55,6 +55,8 @@ cmCTestGenericHandler* cmCTestUpdateCommand::InitializeHandler()
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "GITUpdateOptions", "CTEST_GIT_UPDATE_OPTIONS", this->Quiet);
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
+    "GITInitSubmodules", "CTEST_GIT_INIT_SUBMODULES", this->Quiet);
+  this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "GITUpdateCustom", "CTEST_GIT_UPDATE_CUSTOM", this->Quiet);
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "UpdateVersionOnly", "CTEST_UPDATE_VERSION_ONLY", this->Quiet);