Pass EXCLUDE_FROM_ALL from directory to targets

When a target is created it now inherits the EXCLUDE_FROM_ALL property
from its directory. This change makes it possible to include a target
in "all", even if its directory has been marked as EXCLUDE_FROM_ALL.

Help/prop_dir/EXCLUDE_FROM_ALL.rst

@@ -7,3 +7,9 @@ A property on a directory that indicates if its targets are excluded
 from the default build target.  If it is not, then with a Makefile for
 example typing make will cause the targets to be built.  The same
 concept applies to the default build of other generators.
+
+Targets inherit the :prop_tgt:`EXCLUDE_FROM_ALL` property from the directory
+that they are created in. When a directory is excluded, all of its targets will
+have :prop_tgt:`EXCLUDE_FROM_ALL` set to ``TRUE``. After creating such a target
+you can change its :prop_tgt:`EXCLUDE_FROM_ALL` property to ``FALSE``. This
+will cause the target to be included in the default build target.

Help/prop_tgt/EXCLUDE_FROM_ALL.rst

@@ -8,3 +8,6 @@ the default build target.  If it is not, then with a Makefile for
 example typing make will cause this target to be built.  The same
 concept applies to the default build of other generators.  Installing
 a target with EXCLUDE_FROM_ALL set to true has undefined behavior.
+
+This property is enabled by default for targets that are created in
+directories that have :prop_dir:`EXCLUDE_FROM_ALL` set to ``TRUE``.

Help/release/dev/EXCLUDE_FROM_ALL.rst

@@ -0,0 +1,7 @@
+EXCLUDE_FROM_ALL
+----------------
+
+* A target's :prop_tgt:`EXCLUDE_FROM_ALL` property can now override the
+  setting of its directory. A target will now be built as part of "all"
+  if its :prop_tgt:`EXCLUDE_FROM_ALL` property is set to ``OFF``, even if its
+  containing directory is marked as :prop_dir:`EXCLUDE_FROM_ALL`.

Source/cmGlobalGenerator.cxx

@@ -2034,17 +2034,10 @@ bool cmGlobalGenerator::IsExcluded(cmLocalGenerator* root,
   return this->IsExcluded(rootSnp, snp);
 }
 
-bool cmGlobalGenerator::IsExcluded(cmLocalGenerator* root,
-                                   cmGeneratorTarget* target) const
+bool cmGlobalGenerator::IsExcluded(cmGeneratorTarget* target) const
 {
-  if (target->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
-      target->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
-    // This target is excluded from its directory.
-    return true;
-  }
-  // This target is included in its directory.  Check whether the
-  // directory is excluded.
-  return this->IsExcluded(root, target->GetLocalGenerator());
+  return target->GetType() == cmStateEnums::INTERFACE_LIBRARY ||
+    target->GetPropertyAsBool("EXCLUDE_FROM_ALL");
 }
 
 void cmGlobalGenerator::GetEnabledLanguages(

Source/cmGlobalGenerator.h

@@ -468,7 +468,7 @@ protected:
   bool IsExcluded(cmStateSnapshot const& root,
                   cmStateSnapshot const& snp) const;
   bool IsExcluded(cmLocalGenerator* root, cmLocalGenerator* gen) const;
-  bool IsExcluded(cmLocalGenerator* root, cmGeneratorTarget* target) const;
+  bool IsExcluded(cmGeneratorTarget* target) const;
   virtual void InitializeProgressMarks() {}
 
   struct GlobalTargetInfo

Source/cmGlobalNinjaGenerator.h

@@ -331,9 +331,9 @@ public:
     return LocalGenerators;
   }
 
-  bool IsExcluded(cmLocalGenerator* root, cmGeneratorTarget* target)
+  bool IsExcluded(cmGeneratorTarget* target)
   {
-    return cmGlobalGenerator::IsExcluded(root, target);
+    return cmGlobalGenerator::IsExcluded(target);
   }
 
   int GetRuleCmdLength(const std::string& name) { return RuleCmdLength[name]; }

Source/cmGlobalUnixMakefileGenerator3.cxx

@@ -702,7 +702,7 @@ void cmGlobalUnixMakefileGenerator3::WriteConvenienceRules2(
                         localName, depends, commands, true);
 
       // add the all/all dependency
-      if (!this->IsExcluded(this->LocalGenerators[0], gtarget)) {
+      if (!this->IsExcluded(gtarget)) {
         depends.clear();
         depends.push_back(localName);
         commands.clear();
@@ -767,7 +767,7 @@ void cmGlobalUnixMakefileGenerator3::WriteConvenienceRules2(
                           "Pre-install relink rule for target.", localName,
                           depends, commands, true);
 
-        if (!this->IsExcluded(this->LocalGenerators[0], gtarget)) {
+        if (!this->IsExcluded(gtarget)) {
           depends.clear();
           depends.push_back(localName);
           commands.clear();

Source/cmGlobalVisualStudioGenerator.cxx

@@ -201,7 +201,7 @@ void cmGlobalVisualStudioGenerator::AddExtraIDETargets()
               tgt->IsImported()) {
             continue;
           }
-          if (!this->IsExcluded(gen[0], tgt)) {
+          if (!this->IsExcluded(tgt)) {
             allBuild->AddUtility(tgt->GetName());
           }
         }

Source/cmGlobalXCodeGenerator.cxx

@@ -522,10 +522,6 @@ void cmGlobalXCodeGenerator::AddExtraTargets(
   // now make the allbuild depend on all the non-utility targets
   // in the project
   for (auto& gen : gens) {
-    if (this->IsExcluded(root, gen)) {
-      continue;
-    }
-
     for (auto target : gen->GetGeneratorTargets()) {
       if (target->GetType() == cmStateEnums::GLOBAL_TARGET) {
         continue;
@@ -558,8 +554,7 @@ void cmGlobalXCodeGenerator::AddExtraTargets(
           false, "", false, cmMakefile::AcceptObjectLibraryCommands);
       }
 
-      if (target->GetType() != cmStateEnums::INTERFACE_LIBRARY &&
-          !target->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
+      if (!this->IsExcluded(target)) {
         allbuild->AddUtility(target->GetName());
       }
     }

Source/cmLocalNinjaGenerator.cxx

@@ -90,9 +90,7 @@ void cmLocalNinjaGenerator::Generate()
     if (tg) {
       tg->Generate();
       // Add the target to "all" if required.
-      if (!this->GetGlobalNinjaGenerator()->IsExcluded(
-            this->GetGlobalNinjaGenerator()->GetLocalGenerators()[0],
-            target)) {
+      if (!this->GetGlobalNinjaGenerator()->IsExcluded(target)) {
         this->GetGlobalNinjaGenerator()->AddDependencyToAll(target);
       }
       delete tg;

Source/cmMakefile.cxx

@@ -1127,7 +1127,7 @@ cmTarget* cmMakefile::AddUtilityCommand(
   // Create a target instance for this utility.
   cmTarget* target = this->AddNewTarget(cmStateEnums::UTILITY, utilityName);
   target->SetIsGeneratorProvided(origin == TargetOrigin::Generator);
-  if (excludeFromAll) {
+  if (excludeFromAll || this->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
     target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
   }
   if (!comment) {
@@ -1662,7 +1662,7 @@ void cmMakefile::AddSubDirectory(const std::string& srcPath,
   cmMakefile* subMf = new cmMakefile(this->GlobalGenerator, newSnapshot);
   this->GetGlobalGenerator()->AddMakefile(subMf);
 
-  if (excludeFromAll) {
+  if (excludeFromAll || this->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
     subMf->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
   }
 
@@ -1958,7 +1958,7 @@ cmTarget* cmMakefile::AddLibrary(const std::string& lname,
   // over changes in CMakeLists.txt, making the information stale and
   // hence useless.
   target->ClearDependencyInformation(*this);
-  if (excludeFromAll) {
+  if (excludeFromAll || this->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
     target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
   }
   target->AddSources(srcs);
@@ -1971,7 +1971,7 @@ cmTarget* cmMakefile::AddExecutable(const std::string& exeName,
                                     bool excludeFromAll)
 {
   cmTarget* target = this->AddNewTarget(cmStateEnums::EXECUTABLE, exeName);
-  if (excludeFromAll) {
+  if (excludeFromAll || this->GetPropertyAsBool("EXCLUDE_FROM_ALL")) {
     target->SetProperty("EXCLUDE_FROM_ALL", "TRUE");
   }
   target->AddSources(srcs);

Tests/RunCMake/add_subdirectory/ExcludeFromAll/CMakeLists.txt

@@ -1,4 +1,20 @@
 add_library(bar STATIC bar.cpp)
 
 add_library(foo STATIC foo.cpp)
+
+add_library(baz STATIC foo.cpp)
+set_target_properties(baz PROPERTIES EXCLUDE_FROM_ALL OFF)
+
+file(GENERATE
+  OUTPUT "${CMAKE_BINARY_DIR}/main.txt"
+  CONTENT "$<TARGET_FILE_NAME:main>")
+
+file(GENERATE
+  OUTPUT "${CMAKE_BINARY_DIR}/bar.txt"
+  CONTENT "$<TARGET_FILE_NAME:bar>")
+
+file(GENERATE
+  OUTPUT "${CMAKE_BINARY_DIR}/baz.txt"
+  CONTENT "$<TARGET_FILE_NAME:baz>")
+
 target_include_directories(foo PUBLIC .)

Tests/RunCMake/add_subdirectory/ExcludeFromAll/check.cmake

@@ -0,0 +1,44 @@
+# Use globbing to check if exes / libs were built because determining
+# exactly where these files will live inside a CMake -P script is
+# pretty challenging.
+
+file(READ "${RunCMake_TEST_BINARY_DIR}/main.txt" main_exe)
+file(READ "${RunCMake_TEST_BINARY_DIR}/bar.txt" bar_lib)
+file(READ "${RunCMake_TEST_BINARY_DIR}/baz.txt" baz_lib)
+
+set(found_main FALSE)
+file(GLOB_RECURSE files
+  LIST_DIRECTORIES FALSE
+  RELATIVE "${RunCMake_TEST_BINARY_DIR}"
+  "${RunCMake_TEST_BINARY_DIR}/*")
+foreach (file IN LISTS files)
+  if (file MATCHES "${main_exe}")
+    set(found_main TRUE)
+  endif()
+endforeach()
+if (NOT found_main)
+  set(RunCMake_TEST_FAILED "'main' missing from ${RunCMake_TEST_BINARY_DIR}")
+endif()
+
+set(found_bar FALSE)
+set(found_baz FALSE)
+file(GLOB_RECURSE files
+  LIST_DIRECTORIES FALSE
+  RELATIVE "${RunCMake_TEST_BINARY_DIR}/ExcludeFromAll"
+  "${RunCMake_TEST_BINARY_DIR}/ExcludeFromAll/*")
+foreach (file IN LISTS files)
+  if (file MATCHES "${bar_lib}")
+    set(found_bar TRUE)
+  endif()
+  if (file MATCHES "${baz_lib}")
+    set(found_baz TRUE)
+  endif()
+endforeach()
+if (found_bar)
+  set(RunCMake_TEST_FAILED
+    "'bar' was not excluded from ${RunCMake_TEST_BINARY_DIR}/ExcludeFromAll")
+endif()
+if (NOT found_baz)
+  set(RunCMake_TEST_FAILED
+    "'baz' missing from ${RunCMake_TEST_BINARY_DIR}/ExcludeFromAll")
+endif()

Tests/RunCMake/add_subdirectory/RunCMakeTest.cmake

@@ -33,6 +33,7 @@ file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
 file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
 
 run_cmake(ExcludeFromAll)
+set(RunCMake-check-file ExcludeFromAll/check.cmake)
 run_cmake_command(ExcludeFromAll-build ${CMAKE_COMMAND} --build .)
 
 unset(RunCMake_TEST_BINARY_DIR)