ctest_update: Add CTEST_UPDATE_VERSION_ONLY option to only note the version

This allows ctest_update to get the current version without actually
changing the repository.  This is useful when using Jenkins or an
external project to update the source to a specific version, but you
still want the current version to show up in CDash.

8 files changed, 89 insertions, 11 deletions

diff --git a/Help/manual/cmake-variables.7.rst b/Help/manual/cmake-variables.7.rst
index 05a7b33..43c2af3 100644
--- a/Help/manual/cmake-variables.7.rst
+++ b/Help/manual/cmake-variables.7.rst
@@ -360,6 +360,7 @@ Variables for CTest
    /variable/CTEST_TRIGGER_SITE
    /variable/CTEST_UPDATE_COMMAND
    /variable/CTEST_UPDATE_OPTIONS
+   /variable/CTEST_UPDATE_VERSION_ONLY
    /variable/CTEST_USE_LAUNCHERS
 
 Variables for CPack
diff --git a/Help/manual/ctest.1.rst b/Help/manual/ctest.1.rst
index a57a8f0..52e4beb 100644
--- a/Help/manual/ctest.1.rst
+++ b/Help/manual/ctest.1.rst
@@ -668,6 +668,15 @@ Configuration settings to specify the version control tool include:
   * :module:`CTest` module variable: ``UPDATE_TYPE`` if set,
     else ``CTEST_UPDATE_TYPE``
 
+``UpdateVersionOnly``
+  Specify that you want the version control update command to only
+  discover the current version that is checked out, and not to update
+  to a different version.
+
+  * `CTest Script`_ variable: :variable:`CTEST_UPDATE_VERSION_ONLY`
+
+
+
 Additional configuration settings include:
 
 ``NightlyStartTime``
diff --git a/Help/variable/CTEST_UPDATE_VERSION_ONLY.rst b/Help/variable/CTEST_UPDATE_VERSION_ONLY.rst
new file mode 100644
index 0000000..e646e6e
--- /dev/null
+++ b/Help/variable/CTEST_UPDATE_VERSION_ONLY.rst
@@ -0,0 +1,5 @@
+CTEST_UPDATE_VERSION_ONLY
+-------------------------
+
+Specify the CTest ``UpdateVersionOnly`` setting
+in a :manual:`ctest(1)` dashboard client script.
diff --git a/Modules/DartConfiguration.tcl.in b/Modules/DartConfiguration.tcl.in
index 0420882..86049d0 100644
--- a/Modules/DartConfiguration.tcl.in
+++ b/Modules/DartConfiguration.tcl.in
@@ -37,6 +37,9 @@ ConfigureCommand: "@CMAKE_COMMAND@" "@PROJECT_SOURCE_DIR@"
 MakeCommand: @MAKECOMMAND@
 DefaultCTestConfigurationType: @DEFAULT_CTEST_CONFIGURATION_TYPE@
 
+# version control
+UpdateVersionOnly: @CTEST_UPDATE_VERSION_ONLY@
+
 # CVS options
 # Default is "-d -P -A"
 CVSCommand: @CVSCOMMAND@
diff --git a/Source/CTest/cmCTestUpdateCommand.cxx b/Source/CTest/cmCTestUpdateCommand.cxx
index 5408a8a..f87466d 100644
--- a/Source/CTest/cmCTestUpdateCommand.cxx
+++ b/Source/CTest/cmCTestUpdateCommand.cxx
@@ -56,6 +56,8 @@ cmCTestGenericHandler* cmCTestUpdateCommand::InitializeHandler()
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "GITUpdateCustom", "CTEST_GIT_UPDATE_CUSTOM");
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
+    "UpdateVersionOnly", "CTEST_UPDATE_VERSION_ONLY");
+  this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "HGCommand", "CTEST_HG_COMMAND");
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "HGUpdateOptions", "CTEST_HG_UPDATE_OPTIONS");
diff --git a/Source/CTest/cmCTestVC.cxx b/Source/CTest/cmCTestVC.cxx
index f89fa2b..15f796f 100644
--- a/Source/CTest/cmCTestVC.cxx
+++ b/Source/CTest/cmCTestVC.cxx
@@ -166,10 +166,17 @@ void cmCTestVC::CleanupImpl()
 //----------------------------------------------------------------------------
 bool cmCTestVC::Update()
 {
-  this->NoteOldRevision();
-  this->Log << "--- Begin Update ---\n";
-  bool result = this->UpdateImpl();
-  this->Log << "--- End Update ---\n";
+  bool result = true;
+  // if update version only is on then do not actually update,
+  // just note the current version and finish
+  if(!cmSystemTools::IsOn(
+       this->CTest->GetCTestConfiguration("UpdateVersionOnly").c_str()))
+    {
+    this->NoteOldRevision();
+    this->Log << "--- Begin Update ---\n";
+    result = this->UpdateImpl();
+    this->Log << "--- End Update ---\n";
+    }
   this->NoteNewRevision();
   return result;
 }
diff --git a/Tests/CTestUpdateCommon.cmake b/Tests/CTestUpdateCommon.cmake
index 857c6f5..97153f0 100644
--- a/Tests/CTestUpdateCommon.cmake
+++ b/Tests/CTestUpdateCommon.cmake
@@ -219,6 +219,36 @@ function(run_dashboard_command_line bin_dir)
 endfunction()
 
 #-----------------------------------------------------------------------------
+# Function to find the Update.xml file and make sure
+# it only has the Revision in it and no updates
+function(check_no_update bin_dir)
+  set(PATTERN ${TOP}/${bin_dir}/Testing/*/Update.xml)
+  file(GLOB UPDATE_XML_FILE RELATIVE ${TOP} ${PATTERN})
+  string(REGEX REPLACE "//Update.xml$" "/Update.xml"
+    UPDATE_XML_FILE "${UPDATE_XML_FILE}")
+  message(" found ${UPDATE_XML_FILE}")
+  set(rev_regex "Revision|PriorRevision")
+  file(STRINGS ${TOP}/${UPDATE_XML_FILE} UPDATE_XML_REVISIONS
+    REGEX "^\t<(${rev_regex})>[^<\n]+</(${rev_regex})>$"
+    )
+  set(found_revisons FALSE)
+  foreach(r IN LISTS UPDATE_XML_REVISIONS)
+    if("${r}" MATCHES "PriorRevision")
+      message(FATAL_ERROR "Found PriorRevision in no update test")
+    endif()
+    if("${r}" MATCHES "<Revision>")
+      set(found_revisons TRUE)
+    endif()
+  endforeach()
+  if(found_revisons)
+    message(" found <Revision> in no update test")
+  else()
+    message(FATAL_ERROR " missing <Revision> in no update test")
+  endif()
+endfunction()
+
+
+#-----------------------------------------------------------------------------
 # Function to run the dashboard through a script
 function(run_dashboard_script bin_dir)
   run_child(
@@ -228,13 +258,17 @@ function(run_dashboard_script bin_dir)
 
   # Verify the updates reported by CTest.
   list(APPEND UPDATE_MAYBE Updated{subdir} Updated{CTestConfig.cmake})
-  check_updates(${bin_dir}
-    Updated{foo.txt}
-    Updated{bar.txt}
-    Updated{zot.txt}
-    Updated{subdir/foo.txt}
-    Updated{subdir/bar.txt}
-    )
+  if(NO_UPDATE)
+    check_no_update(${bin_dir})
+  else()
+    check_updates(${bin_dir}
+      Updated{foo.txt}
+      Updated{bar.txt}
+      Updated{zot.txt}
+      Updated{subdir/foo.txt}
+      Updated{subdir/bar.txt}
+      )
+  endif()
 endfunction()
 
 #-----------------------------------------------------------------------------
diff --git a/Tests/CTestUpdateGIT.cmake.in b/Tests/CTestUpdateGIT.cmake.in
index f6939de..41b732b 100644
--- a/Tests/CTestUpdateGIT.cmake.in
+++ b/Tests/CTestUpdateGIT.cmake.in
@@ -317,3 +317,20 @@ set(CTEST_GIT_UPDATE_CUSTOM \${CTEST_GIT_COMMAND} pull origin master)
 
 # Run the dashboard script with CTest.
 run_dashboard_script(dash-binary-custom)
+
+
+rewind_source(dash-source)
+
+#-----------------------------------------------------------------------------
+# Test no update with a dashboard script.
+message("Running CTest Dashboard Script (No update)...")
+
+create_dashboard_script(dash-binary-no-update
+  "# git command configuration
+set(CTEST_GIT_COMMAND \"${GIT}\")
+set(CTEST_UPDATE_VERSION_ONLY TRUE)
+")
+
+# Run the dashboard script with CTest.
+set(NO_UPDATE 1)
+run_dashboard_script(dash-binary-no-update)