cmake_file_api: New project command

Projects can use the new command to request file API replies for the current
run. No query files are generated, the query is tracked internally. Replies are
created in the file system at generation time in the usual way.

Fixes: #24951

1 files changed, 42 insertions, 0 deletions

diff --git a/Source/cmFileAPI.cxx b/Source/cmFileAPI.cxx
index 8b98916..8abb5a8 100644
--- a/Source/cmFileAPI.cxx
+++ b/Source/cmFileAPI.cxx
@@ -978,3 +978,45 @@ Json::Value cmFileAPI::ReportCapabilities()
 
   return capabilities;
 }
+
+bool cmFileAPI::AddProjectQuery(cmFileAPI::ObjectKind kind,
+                                unsigned majorVersion, unsigned minorVersion)
+{
+  switch (kind) {
+    case ObjectKind::CodeModel:
+      if (majorVersion != 2 || minorVersion > CodeModelV2Minor) {
+        return false;
+      }
+      break;
+    case ObjectKind::Cache:
+      if (majorVersion != 2 || minorVersion > CacheV2Minor) {
+        return false;
+      }
+      break;
+    case ObjectKind::CMakeFiles:
+      if (majorVersion != 1 || minorVersion > CMakeFilesV1Minor) {
+        return false;
+      }
+      break;
+    case ObjectKind::Toolchains:
+      if (majorVersion != 1 || minorVersion > ToolchainsV1Minor) {
+        return false;
+      }
+      break;
+    // These cannot be requested by the project
+    case ObjectKind::ConfigureLog:
+    case ObjectKind::InternalTest:
+      return false;
+  }
+
+  Object query;
+  query.Kind = kind;
+  query.Version = majorVersion;
+  if (std::find(this->TopQuery.Known.begin(), this->TopQuery.Known.end(),
+                query) == this->TopQuery.Known.end()) {
+    this->TopQuery.Known.emplace_back(query);
+    this->QueryExists = true;
+  }
+
+  return true;
+}