CMakePresets.json: Split cmakeGeneratorConfig field

Make this field separate for both architecture and toolset. Allow
architecture and toolset to be either strings or objects with value
and strategy fields.

Fixes: #21317

7 files changed, 83 insertions, 32 deletions

diff --git a/Source/QtDialog/CMakeSetupDialog.cxx b/Source/QtDialog/CMakeSetupDialog.cxx
index 7a04daa..a15614d 100644
--- a/Source/QtDialog/CMakeSetupDialog.cxx
+++ b/Source/QtDialog/CMakeSetupDialog.cxx
@@ -859,8 +859,10 @@ bool CMakeSetupDialog::setupFirstConfigure()
   if (presetData.isValid()) {
     auto preset = presetData.value<QCMakePreset>();
     dialog.setCurrentGenerator(preset.generator);
-    if (preset.setGenConfig) {
+    if (preset.setArchitecture) {
       dialog.setPlatform(preset.architecture);
+    }
+    if (preset.setToolset) {
       dialog.setToolset(preset.toolset);
     }
     dialog.setCompilerOption(CompilerOption::DefaultNative);
diff --git a/Source/QtDialog/QCMake.cxx b/Source/QtDialog/QCMake.cxx
index 3789e93..2f41f70 100644
--- a/Source/QtDialog/QCMake.cxx
+++ b/Source/QtDialog/QCMake.cxx
@@ -551,9 +551,11 @@ void QCMake::loadPresets()
     preset.generator = std::move(QString::fromLocal8Bit(p.Generator.data()));
     preset.architecture =
       std::move(QString::fromLocal8Bit(p.Architecture.data()));
+    preset.setArchitecture = !p.ArchitectureStrategy ||
+      p.ArchitectureStrategy == cmCMakePresetsFile::ArchToolsetStrategy::Set;
     preset.toolset = std::move(QString::fromLocal8Bit(p.Toolset.data()));
-    preset.setGenConfig = !p.GeneratorConfig ||
-      p.GeneratorConfig == cmCMakePresetsFile::CMakeGeneratorConfig::Default;
+    preset.setToolset = !p.ToolsetStrategy ||
+      p.ToolsetStrategy == cmCMakePresetsFile::ArchToolsetStrategy::Set;
     preset.enabled = it.Expanded &&
       std::find_if(this->AvailableGenerators.begin(),
                    this->AvailableGenerators.end(),
diff --git a/Source/QtDialog/QCMakePreset.cxx b/Source/QtDialog/QCMakePreset.cxx
index b10cf07..176f532 100644
--- a/Source/QtDialog/QCMakePreset.cxx
+++ b/Source/QtDialog/QCMakePreset.cxx
@@ -6,8 +6,9 @@ bool operator==(const QCMakePreset& lhs, const QCMakePreset& rhs)
 {
   return lhs.name == rhs.name && lhs.displayName == rhs.displayName &&
     lhs.description == rhs.description && lhs.generator == rhs.generator &&
-    lhs.architecture == rhs.architecture && lhs.toolset == rhs.toolset &&
-    lhs.setGenConfig == rhs.setGenConfig && lhs.enabled == rhs.enabled;
+    lhs.architecture == rhs.architecture &&
+    lhs.setArchitecture == rhs.setArchitecture && lhs.toolset == rhs.toolset &&
+    lhs.setToolset == rhs.setToolset && lhs.enabled == rhs.enabled;
 }
 
 bool operator!=(const QCMakePreset& lhs, const QCMakePreset& rhs)
@@ -27,11 +28,13 @@ bool operator<(const QCMakePreset& lhs, const QCMakePreset& rhs)
           (lhs.generator == rhs.generator &&
            (lhs.architecture < rhs.architecture ||
             (lhs.architecture == rhs.architecture &&
-             (lhs.toolset < rhs.toolset ||
-              (lhs.toolset == rhs.toolset &&
-               (lhs.setGenConfig < rhs.setGenConfig ||
-                (lhs.setGenConfig == rhs.setGenConfig &&
-                 (lhs.enabled < rhs.enabled))))))))))))));
+             (lhs.setArchitecture < rhs.setArchitecture ||
+              (lhs.setArchitecture == rhs.setArchitecture &&
+               (lhs.toolset < rhs.toolset ||
+                (lhs.toolset == rhs.toolset &&
+                 (lhs.setToolset < rhs.setToolset ||
+                  (lhs.setToolset == rhs.setToolset &&
+                   (lhs.enabled < rhs.enabled))))))))))))))));
 }
 
 bool operator<=(const QCMakePreset& lhs, const QCMakePreset& rhs)
diff --git a/Source/QtDialog/QCMakePreset.h b/Source/QtDialog/QCMakePreset.h
index 93d70d8..1609fcb 100644
--- a/Source/QtDialog/QCMakePreset.h
+++ b/Source/QtDialog/QCMakePreset.h
@@ -15,8 +15,9 @@ public:
   QString description;
   QString generator;
   QString architecture;
+  bool setArchitecture;
   QString toolset;
-  bool setGenConfig;
+  bool setToolset;
   bool enabled;
 };
 
diff --git a/Source/cmCMakePresetsFile.cxx b/Source/cmCMakePresetsFile.cxx
index b3bb6df..34a313b 100644
--- a/Source/cmCMakePresetsFile.cxx
+++ b/Source/cmCMakePresetsFile.cxx
@@ -30,7 +30,7 @@ using ReadFileResult = cmCMakePresetsFile::ReadFileResult;
 using CacheVariable = cmCMakePresetsFile::CacheVariable;
 using UnexpandedPreset = cmCMakePresetsFile::UnexpandedPreset;
 using ExpandedPreset = cmCMakePresetsFile::ExpandedPreset;
-using CMakeGeneratorConfig = cmCMakePresetsFile::CMakeGeneratorConfig;
+using ArchToolsetStrategy = cmCMakePresetsFile::ArchToolsetStrategy;
 
 constexpr int MIN_VERSION = 1;
 constexpr int MAX_VERSION = 1;
@@ -212,8 +212,8 @@ auto const PresetDebugHelper =
     .Bind("find"_s, &UnexpandedPreset::DebugFind, PresetOptionalBoolHelper,
           false);
 
-ReadFileResult CMakeGeneratorConfigHelper(
-  cm::optional<CMakeGeneratorConfig>& out, const Json::Value* value)
+ReadFileResult ArchToolsetStrategyHelper(
+  cm::optional<ArchToolsetStrategy>& out, const Json::Value* value)
 {
   if (!value) {
     out = cm::nullopt;
@@ -224,19 +224,56 @@ ReadFileResult CMakeGeneratorConfigHelper(
     return ReadFileResult::INVALID_PRESET;
   }
 
-  if (value->asString() == "default") {
-    out = CMakeGeneratorConfig::Default;
+  if (value->asString() == "set") {
+    out = ArchToolsetStrategy::Set;
     return ReadFileResult::READ_OK;
   }
 
-  if (value->asString() == "ignore") {
-    out = CMakeGeneratorConfig::Ignore;
+  if (value->asString() == "external") {
+    out = ArchToolsetStrategy::External;
     return ReadFileResult::READ_OK;
   }
 
   return ReadFileResult::INVALID_PRESET;
 }
 
+std::function<ReadFileResult(UnexpandedPreset&, const Json::Value*)>
+ArchToolsetHelper(
+  std::string UnexpandedPreset::*valueField,
+  cm::optional<ArchToolsetStrategy> UnexpandedPreset::*strategyField)
+{
+  auto const objectHelper =
+    cmJSONObjectHelper<UnexpandedPreset, ReadFileResult>(
+      ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
+      .Bind("value", valueField, PresetStringHelper, false)
+      .Bind("strategy", strategyField, ArchToolsetStrategyHelper, false);
+  return [valueField, strategyField, objectHelper](
+           UnexpandedPreset& out, const Json::Value* value) -> ReadFileResult {
+    if (!value) {
+      (out.*valueField).clear();
+      out.*strategyField = cm::nullopt;
+      return ReadFileResult::READ_OK;
+    }
+
+    if (value->isString()) {
+      out.*valueField = value->asString();
+      out.*strategyField = cm::nullopt;
+      return ReadFileResult::READ_OK;
+    }
+
+    if (value->isObject()) {
+      return objectHelper(out, value);
+    }
+
+    return ReadFileResult::INVALID_PRESET;
+  };
+}
+
+auto const ArchitectureHelper = ArchToolsetHelper(
+  &UnexpandedPreset::Architecture, &UnexpandedPreset::ArchitectureStrategy);
+auto const ToolsetHelper = ArchToolsetHelper(
+  &UnexpandedPreset::Toolset, &UnexpandedPreset::ToolsetStrategy);
+
 auto const PresetHelper =
   cmJSONObjectHelper<UnexpandedPreset, ReadFileResult>(
     ReadFileResult::READ_OK, ReadFileResult::INVALID_PRESET, false)
@@ -252,11 +289,8 @@ auto const PresetHelper =
           false)
     .Bind("generator"_s, &UnexpandedPreset::Generator, PresetStringHelper,
           false)
-    .Bind("architecture"_s, &UnexpandedPreset::Architecture,
-          PresetStringHelper, false)
-    .Bind("toolset"_s, &UnexpandedPreset::Toolset, PresetStringHelper, false)
-    .Bind("cmakeGeneratorConfig"_s, &UnexpandedPreset::GeneratorConfig,
-          CMakeGeneratorConfigHelper, false)
+    .Bind("architecture"_s, ArchitectureHelper, false)
+    .Bind("toolset"_s, ToolsetHelper, false)
     .Bind("binaryDir"_s, &UnexpandedPreset::BinaryDir, PresetStringHelper,
           false)
     .Bind<std::string>("cmakeExecutable"_s, nullptr, PresetStringHelper, false)
@@ -353,8 +387,12 @@ ReadFileResult VisitPreset(
     InheritString(preset.Generator, parent->second.Unexpanded.Generator);
     InheritString(preset.Architecture, parent->second.Unexpanded.Architecture);
     InheritString(preset.Toolset, parent->second.Unexpanded.Toolset);
-    if (!preset.GeneratorConfig) {
-      preset.GeneratorConfig = parent->second.Unexpanded.GeneratorConfig;
+    if (!preset.ArchitectureStrategy) {
+      preset.ArchitectureStrategy =
+        parent->second.Unexpanded.ArchitectureStrategy;
+    }
+    if (!preset.ToolsetStrategy) {
+      preset.ToolsetStrategy = parent->second.Unexpanded.ToolsetStrategy;
     }
     InheritString(preset.BinaryDir, parent->second.Unexpanded.BinaryDir);
     InheritOptionalBool(preset.WarnDev, parent->second.Unexpanded.WarnDev);
diff --git a/Source/cmCMakePresetsFile.h b/Source/cmCMakePresetsFile.h
index 87797d7..f6b159a 100644
--- a/Source/cmCMakePresetsFile.h
+++ b/Source/cmCMakePresetsFile.h
@@ -12,10 +12,10 @@
 class cmCMakePresetsFile
 {
 public:
-  enum class CMakeGeneratorConfig
+  enum class ArchToolsetStrategy
   {
-    Default,
-    Ignore,
+    Set,
+    External,
   };
 
   class CacheVariable
@@ -50,8 +50,9 @@ public:
     std::string Description;
     std::string Generator;
     std::string Architecture;
+    cm::optional<ArchToolsetStrategy> ArchitectureStrategy;
     std::string Toolset;
-    cm::optional<CMakeGeneratorConfig> GeneratorConfig;
+    cm::optional<ArchToolsetStrategy> ToolsetStrategy;
     std::string BinaryDir;
 
     std::map<std::string, cm::optional<CacheVariable>> CacheVariables;
diff --git a/Source/cmake.cxx b/Source/cmake.cxx
index 5b6bd1e..291ce22 100644
--- a/Source/cmake.cxx
+++ b/Source/cmake.cxx
@@ -1069,12 +1069,16 @@ void cmake::SetArgs(const std::vector<std::string>& args)
     this->UnprocessedPresetVariables = expandedPreset->CacheVariables;
     this->UnprocessedPresetEnvironment = expandedPreset->Environment;
 
-    if (!expandedPreset->GeneratorConfig ||
-        expandedPreset->GeneratorConfig ==
-          cmCMakePresetsFile::CMakeGeneratorConfig::Default) {
+    if (!expandedPreset->ArchitectureStrategy ||
+        expandedPreset->ArchitectureStrategy ==
+          cmCMakePresetsFile::ArchToolsetStrategy::Set) {
       if (!this->GeneratorPlatformSet) {
         this->SetGeneratorPlatform(expandedPreset->Architecture);
       }
+    }
+    if (!expandedPreset->ToolsetStrategy ||
+        expandedPreset->ToolsetStrategy ==
+          cmCMakePresetsFile::ArchToolsetStrategy::Set) {
       if (!this->GeneratorToolsetSet) {
         this->SetGeneratorToolset(expandedPreset->Toolset);
       }