Merge branch 'ctest-git-flexibility'

12 files changed, 157 insertions, 44 deletions

diff --git a/ChangeLog.manual b/ChangeLog.manual
index 29162e9..b935860 100644
--- a/ChangeLog.manual
+++ b/ChangeLog.manual
@@ -15,6 +15,7 @@ Changes since CMake 2.8.1
 - CTest: Report failure in Update.xml
 - CTest: Submit author email in Update.xml
 - CTest: Teach ctest_update about Git submodules
+- CTest: Teach ctest_update to handle Git upstream branch rewrites
 - Cygwin: Export all symbols with ENABLE_EXPORTS (#10122)
 - Do not list file names during 'cmake -E tar xz'
 - Documentation: Comply with "XHTML 1.0 Strict"
diff --git a/Modules/DartConfiguration.tcl.in b/Modules/DartConfiguration.tcl.in
index 85b4138..51f514f 100644
--- a/Modules/DartConfiguration.tcl.in
+++ b/Modules/DartConfiguration.tcl.in
@@ -49,6 +49,7 @@ SVNUpdateOptions: @SVN_UPDATE_OPTIONS@
 # Git options
 GITCommand: @GITCOMMAND@
 GITUpdateOptions: @GIT_UPDATE_OPTIONS@
+GITUpdateCustom: @CTEST_GIT_UPDATE_CUSTOM@
 
 # Generic update command
 UpdateCommand: @UPDATE_COMMAND@
diff --git a/Source/CTest/cmCTestGIT.cxx b/Source/CTest/cmCTestGIT.cxx
index f5ba361..6c3631c 100644
--- a/Source/CTest/cmCTestGIT.cxx
+++ b/Source/CTest/cmCTestGIT.cxx
@@ -85,16 +85,14 @@ void cmCTestGIT::NoteNewRevision()
 }
 
 //----------------------------------------------------------------------------
-bool cmCTestGIT::UpdateImpl()
+bool cmCTestGIT::UpdateByFetchAndReset()
 {
   const char* git = this->CommandLineTool.c_str();
 
-  // Use "git pull" to update the working tree.
-  std::vector<char const*> git_pull;
-  git_pull.push_back(git);
-  git_pull.push_back("pull");
-
-  // TODO: if(this->CTest->GetTestModel() == cmCTest::NIGHTLY)
+  // Use "git fetch" to get remote commits.
+  std::vector<char const*> git_fetch;
+  git_fetch.push_back(git);
+  git_fetch.push_back("fetch");
 
   // Add user-specified update options.
   std::string opts = this->CTest->GetCTestConfiguration("UpdateOptions");
@@ -106,22 +104,88 @@ bool cmCTestGIT::UpdateImpl()
   for(std::vector<cmStdString>::const_iterator ai = args.begin();
       ai != args.end(); ++ai)
     {
-    git_pull.push_back(ai->c_str());
+    git_fetch.push_back(ai->c_str());
     }
 
   // Sentinel argument.
-  git_pull.push_back(0);
+  git_fetch.push_back(0);
+
+  // Fetch upstream refs.
+  OutputLogger fetch_out(this->Log, "fetch-out> ");
+  OutputLogger fetch_err(this->Log, "fetch-err> ");
+  if(!this->RunUpdateCommand(&git_fetch[0], &fetch_out, &fetch_err))
+    {
+    return false;
+    }
+
+  // Identify the merge head that would be used by "git pull".
+  std::string sha1;
+  {
+  std::string fetch_head = this->SourceDirectory + "/.git/FETCH_HEAD";
+  std::ifstream fin(fetch_head.c_str(), std::ios::in | std::ios::binary);
+  std::string line;
+  while(sha1.empty() && cmSystemTools::GetLineFromStream(fin, line))
+    {
+    if(line.find("\tnot-for-merge\t") == line.npos)
+      {
+      std::string::size_type pos = line.find('\t');
+      if(pos != line.npos)
+        {
+        sha1 = line.substr(0, pos);
+        }
+      }
+    }
+  }
 
-  OutputLogger out(this->Log, "pull-out> ");
-  OutputLogger err(this->Log, "pull-err> ");
-  if(this->RunUpdateCommand(&git_pull[0], &out, &err))
+  // Reset the local branch to point at that tracked from upstream.
+  char const* git_reset[] = {git, "reset", "--hard", sha1.c_str(), 0};
+  OutputLogger reset_out(this->Log, "reset-out> ");
+  OutputLogger reset_err(this->Log, "reset-err> ");
+  return this->RunChild(&git_reset[0], &reset_out, &reset_err);
+}
+
+//----------------------------------------------------------------------------
+bool cmCTestGIT::UpdateByCustom(std::string const& custom)
+{
+  std::vector<std::string> git_custom_command;
+  cmSystemTools::ExpandListArgument(custom, git_custom_command, true);
+  std::vector<char const*> git_custom;
+  for(std::vector<std::string>::const_iterator
+        i = git_custom_command.begin(); i != git_custom_command.end(); ++i)
     {
-    char const* git_submodule[] = {git, "submodule", "update", 0};
-    OutputLogger out2(this->Log, "submodule-out> ");
-    OutputLogger err2(this->Log, "submodule-err> ");
-    return this->RunChild(git_submodule, &out2, &err2);
+    git_custom.push_back(i->c_str());
     }
-  return false;
+  git_custom.push_back(0);
+
+  OutputLogger custom_out(this->Log, "custom-out> ");
+  OutputLogger custom_err(this->Log, "custom-err> ");
+  return this->RunUpdateCommand(&git_custom[0], &custom_out, &custom_err);
+}
+
+//----------------------------------------------------------------------------
+bool cmCTestGIT::UpdateInternal()
+{
+  std::string custom = this->CTest->GetCTestConfiguration("GITUpdateCustom");
+  if(!custom.empty())
+    {
+    return this->UpdateByCustom(custom);
+    }
+  return this->UpdateByFetchAndReset();
+}
+
+//----------------------------------------------------------------------------
+bool cmCTestGIT::UpdateImpl()
+{
+  if(!this->UpdateInternal())
+    {
+    return false;
+    }
+
+  const char* git = this->CommandLineTool.c_str();
+  char const* git_submodule[] = {git, "submodule", "update", 0};
+  OutputLogger submodule_out(this->Log, "submodule-out> ");
+  OutputLogger submodule_err(this->Log, "submodule-err> ");
+  return this->RunChild(git_submodule, &submodule_out, &submodule_err);
 }
 
 //----------------------------------------------------------------------------
diff --git a/Source/CTest/cmCTestGIT.h b/Source/CTest/cmCTestGIT.h
index 0b6ad2e..d8681fe 100644
--- a/Source/CTest/cmCTestGIT.h
+++ b/Source/CTest/cmCTestGIT.h
@@ -32,6 +32,10 @@ private:
   virtual void NoteNewRevision();
   virtual bool UpdateImpl();
 
+  bool UpdateByFetchAndReset();
+  bool UpdateByCustom(std::string const& custom);
+  bool UpdateInternal();
+
   void LoadRevisions();
   void LoadModifications();
 
diff --git a/Source/CTest/cmCTestUpdateCommand.cxx b/Source/CTest/cmCTestUpdateCommand.cxx
index 571745d..8414349 100644
--- a/Source/CTest/cmCTestUpdateCommand.cxx
+++ b/Source/CTest/cmCTestUpdateCommand.cxx
@@ -52,6 +52,8 @@ cmCTestGenericHandler* cmCTestUpdateCommand::InitializeHandler()
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "GITUpdateOptions", "CTEST_GIT_UPDATE_OPTIONS");
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
+    "GITUpdateCustom", "CTEST_GIT_UPDATE_CUSTOM");
+  this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "HGCommand", "CTEST_HG_COMMAND");
   this->CTest->SetCTestConfigurationFromCMakeVariable(this->Makefile,
     "HGUpdateOptions", "CTEST_HG_UPDATE_OPTIONS");
diff --git a/Tests/CTestUpdateBZR.cmake.in b/Tests/CTestUpdateBZR.cmake.in
index 7f90b50..c654f47 100644
--- a/Tests/CTestUpdateBZR.cmake.in
+++ b/Tests/CTestUpdateBZR.cmake.in
@@ -142,7 +142,7 @@ run_dashboard_command_line(user-binary)
 # Test initial checkout and update with a dashboard script.
 message("Running CTest Dashboard Script...")
 
-create_dashboard_script(dashboard.cmake
+create_dashboard_script(dash-binary
   "# bzr command configuration
 set(CTEST_BZR_COMMAND \"${BZR}\")
 set(CTEST_CHECKOUT_COMMAND
@@ -150,4 +150,4 @@ set(CTEST_CHECKOUT_COMMAND
 ")
 
 # Run the dashboard script with CTest.
-run_dashboard_script(dashboard.cmake)
+run_dashboard_script(dash-binary)
diff --git a/Tests/CTestUpdateCVS.cmake.in b/Tests/CTestUpdateCVS.cmake.in
index 6f31a2c..a04673e 100644
--- a/Tests/CTestUpdateCVS.cmake.in
+++ b/Tests/CTestUpdateCVS.cmake.in
@@ -147,7 +147,7 @@ run_dashboard_command_line(user-binary)
 # Test initial checkout and update with a dashboard script.
 message("Running CTest Dashboard Script...")
 
-create_dashboard_script(dashboard.cmake
+create_dashboard_script(dash-binary
   "# CVS command configuration
 set(CTEST_CVS_COMMAND \"${CVS}\")
 set(CTEST_CVS_UPDATE_OPTIONS -dAP)
@@ -156,4 +156,4 @@ set(CTEST_CHECKOUT_COMMAND
 ")
 
 # Run the dashboard script with CTest.
-run_dashboard_script(dashboard.cmake)
+run_dashboard_script(dash-binary)
diff --git a/Tests/CTestUpdateCommon.cmake b/Tests/CTestUpdateCommon.cmake
index 266f4b3..a52cb14 100644
--- a/Tests/CTestUpdateCommon.cmake
+++ b/Tests/CTestUpdateCommon.cmake
@@ -165,15 +165,15 @@ endfunction(create_build_tree)
 
 #-----------------------------------------------------------------------------
 # Function to write the dashboard test script.
-function(create_dashboard_script name custom_text)
+function(create_dashboard_script bin_dir custom_text)
   # Write the dashboard script.
-  file(WRITE ${TOP}/dashboard.cmake
+  file(WRITE ${TOP}/${bin_dir}.cmake
     "# CTest Dashboard Script
 set(CTEST_DASHBOARD_ROOT \"${TOP}\")
 set(CTEST_SITE test.site)
 set(CTEST_BUILD_NAME dash-test)
 set(CTEST_SOURCE_DIRECTORY \${CTEST_DASHBOARD_ROOT}/dash-source)
-set(CTEST_BINARY_DIRECTORY \${CTEST_DASHBOARD_ROOT}/dash-binary)
+set(CTEST_BINARY_DIRECTORY \${CTEST_DASHBOARD_ROOT}/${bin_dir})
 ${custom_text}
 # Start a dashboard and run the update step
 ctest_start(Experimental)
@@ -191,27 +191,31 @@ function(run_dashboard_command_line bin_dir)
 
   # Verify the updates reported by CTest.
   list(APPEND UPDATE_MAYBE Updated{subdir})
+  set(_modified Modified{CTestConfig.cmake})
+  if(UPDATE_NO_MODIFIED)
+    set(_modified "")
+  endif()
   check_updates(${bin_dir}
     Updated{foo.txt}
     Updated{bar.txt}
     Updated{zot.txt}
     Updated{subdir/foo.txt}
     Updated{subdir/bar.txt}
-    Modified{CTestConfig.cmake}
+    ${_modified}
     )
 endfunction(run_dashboard_command_line)
 
 #-----------------------------------------------------------------------------
 # Function to run the dashboard through a script
-function(run_dashboard_script name)
+function(run_dashboard_script bin_dir)
   run_child(
     WORKING_DIRECTORY ${TOP}
-    COMMAND ${CMAKE_CTEST_COMMAND} -S ${name} -V
+    COMMAND ${CMAKE_CTEST_COMMAND} -S ${bin_dir}.cmake -V
     )
 
   # Verify the updates reported by CTest.
   list(APPEND UPDATE_MAYBE Updated{subdir})
-  check_updates(dash-binary
+  check_updates(${bin_dir}
     Updated{foo.txt}
     Updated{bar.txt}
     Updated{zot.txt}
diff --git a/Tests/CTestUpdateGIT.cmake.in b/Tests/CTestUpdateGIT.cmake.in
index f0a5770..4ac1b31 100644
--- a/Tests/CTestUpdateGIT.cmake.in
+++ b/Tests/CTestUpdateGIT.cmake.in
@@ -192,15 +192,18 @@ run_child(
 
 #-----------------------------------------------------------------------------
 # Go back to before the changes so we can test updating.
-message("Backing up to revision 1...")
-run_child(
-  WORKING_DIRECTORY ${TOP}/user-source
-  COMMAND ${GIT} reset --hard master~2
-  )
-run_child(
-  WORKING_DIRECTORY ${TOP}/user-source
-  COMMAND ${GIT} submodule update
-  )
+macro(rewind_source src_dir)
+  message("Backing up to revision 1...")
+  run_child(
+    WORKING_DIRECTORY ${TOP}/${src_dir}
+    COMMAND ${GIT} reset --hard origin/master~2
+    )
+  run_child(
+    WORKING_DIRECTORY ${TOP}/${src_dir}
+    COMMAND ${GIT} submodule update
+    )
+endmacro(rewind_source)
+rewind_source(user-source)
 
 # Make sure pull does not try to rebase (which does not work with
 # modified files) even if ~/.gitconfig sets "branch.master.rebase".
@@ -224,13 +227,31 @@ UpdateCommand: ${GIT}
 ")
 
 # Run the dashboard command line interface.
+set(UPDATE_NO_MODIFIED 1)
 run_dashboard_command_line(user-binary)
+set(UPDATE_NO_MODIFIED 0)
+
+rewind_source(user-source)
+modify_content(user-source)
+
+message("Running CTest Dashboard Command Line (custom update)...")
+
+# Create the user build tree.
+create_build_tree(user-source user-binary-custom)
+file(APPEND ${TOP}/user-binary-custom/CTestConfiguration.ini
+  "# GIT command configuration
+UpdateCommand: ${GIT}
+GITUpdateCustom: ${GIT};pull;origin;master
+")
+
+# Run the dashboard command line interface.
+run_dashboard_command_line(user-binary-custom)
 
 #-----------------------------------------------------------------------------
 # Test initial checkout and update with a dashboard script.
 message("Running CTest Dashboard Script...")
 
-create_dashboard_script(dashboard.cmake
+create_dashboard_script(dash-binary
   "# git command configuration
 set(CTEST_GIT_COMMAND \"${GIT}\")
 set(CTEST_GIT_UPDATE_OPTIONS)
@@ -253,4 +274,20 @@ execute_process(
 ")
 
 # Run the dashboard script with CTest.
-run_dashboard_script(dashboard.cmake)
+run_dashboard_script(dash-binary)
+
+rewind_source(dash-source)
+
+#-----------------------------------------------------------------------------
+# Test custom update with a dashboard script.
+message("Running CTest Dashboard Script (custom update)...")
+
+create_dashboard_script(dash-binary-custom
+  "# git command configuration
+set(CTEST_GIT_COMMAND \"${GIT}\")
+set(CTEST_GIT_UPDATE_OPTIONS)
+set(CTEST_GIT_UPDATE_CUSTOM \${CTEST_GIT_COMMAND} pull origin master)
+")
+
+# Run the dashboard script with CTest.
+run_dashboard_script(dash-binary-custom)
diff --git a/Tests/CTestUpdateGIT.sh.in b/Tests/CTestUpdateGIT.sh.in
index 4761d32..e7586d6 100755
--- a/Tests/CTestUpdateGIT.sh.in
+++ b/Tests/CTestUpdateGIT.sh.in
@@ -1,5 +1,5 @@
 #!/bin/sh
-if test "x$1" = "xpull"; then
+if test "x$1" = "xpull" -o "x$1" = "xreset"; then
     "@GIT@" "$@" && sleep 1 && touch foo.txt
 else
     exec "@GIT@" "$@"
diff --git a/Tests/CTestUpdateHG.cmake.in b/Tests/CTestUpdateHG.cmake.in
index f2e5f83..543ddd9 100644
--- a/Tests/CTestUpdateHG.cmake.in
+++ b/Tests/CTestUpdateHG.cmake.in
@@ -145,7 +145,7 @@ run_dashboard_command_line(user-binary)
 # Test initial checkout and update with a dashboard script.
 message("Running CTest Dashboard Script...")
 
-create_dashboard_script(dashboard.cmake
+create_dashboard_script(dash-binary
   "# hg command configuration
 set(CTEST_HG_COMMAND \"${HG}\")
 set(CTEST_HG_UPDATE_OPTIONS)
@@ -160,4 +160,4 @@ execute_process(
 ")
 
 # Run the dashboard script with CTest.
-run_dashboard_script(dashboard.cmake)
+run_dashboard_script(dash-binary)
diff --git a/Tests/CTestUpdateSVN.cmake.in b/Tests/CTestUpdateSVN.cmake.in
index 509597b..97b2a07 100644
--- a/Tests/CTestUpdateSVN.cmake.in
+++ b/Tests/CTestUpdateSVN.cmake.in
@@ -127,7 +127,7 @@ run_dashboard_command_line(user-binary)
 # Test initial checkout and update with a dashboard script.
 message("Running CTest Dashboard Script...")
 
-create_dashboard_script(dashboard.cmake
+create_dashboard_script(dash-binary
   "# Subversion command configuration
 set(CTEST_SVN_COMMAND \"${SVN}\")
 set(CTEST_SVN_UPDATE_OPTIONS
@@ -137,4 +137,4 @@ set(CTEST_CHECKOUT_COMMAND
 ")
 
 # Run the dashboard script with CTest.
-run_dashboard_script(dashboard.cmake)
+run_dashboard_script(dash-binary)