[projmgr] Fix for-compiler check and error message (#1409)

tools/projmgr/include/ProjMgrWorker.h

@@ -1143,6 +1143,7 @@ class ProjMgrWorker {
     m_missingFiles.clear();
     m_types = {};
     m_activeTargetType.clear();
+    m_missingToolchains.clear();
     m_undefCompiler = false;
     m_isSetupCommand = false;
   };
@@ -1303,6 +1304,7 @@ class ProjMgrWorker {
   template<class T> bool CheckFilter(const std::string& filter, const T& item);
   void ResolvePackRequirement(ContextItem& context, const PackItem& packEntry, bool ignoreCBuildPack);
   void FormatResolvedPackIds();
+  void RetrieveToolchainConfigFiles();
 };
 
 #endif  // PROJMGRWORKER_H

tools/projmgr/src/ProjMgrWorker.cpp

@@ -1835,6 +1835,7 @@ void ProjMgrWorker::ResolvePackRequirement(ContextItem& context, const PackItem&
 }
 
 bool ProjMgrWorker::ProcessToolchain(ContextItem& context) {
+  RetrieveToolchainConfigFiles();
   if (context.compiler.empty()) {
     // Use the default compiler if available
     if (context.cdefault && !context.cdefault->compiler.empty()) {
@@ -3939,7 +3940,7 @@ void ProjMgrWorker::PrintMissingFilters(void) {
       (misspelled ? ", did you mean '." + type + "'?" : ""));
   }
   for (const auto& toolchain : m_missingToolchains) {
-    ProjMgrLogger::Get().Warn("compiler '" + toolchain + "' is not supported");
+    ProjMgrLogger::Get().Warn("'for-compiler: " + toolchain + "' is not supported");
   }
 }
 
@@ -5152,17 +5153,20 @@ bool ProjMgrWorker::GetLatestToolchain(ToolchainItem& toolchain) {
   return found;
 }
 
-bool ProjMgrWorker::GetToolchainConfig(const string& toolchainName, const string& toolchainVersion, string& configPath, string& selectedConfigVersion) {
-  const string& compilerRoot = GetCompilerRoot();
+void ProjMgrWorker::RetrieveToolchainConfigFiles(void) {
   // get toolchain configuration files
   if (m_toolchainConfigFiles.empty()) {
     // get *.cmake files from compiler root (not recursively)
-    auto cmakeFiles = RteFsUtils::GrepFiles(compilerRoot, "*.cmake");
+    auto cmakeFiles = RteFsUtils::GrepFiles(GetCompilerRoot(), "*.cmake");
     std::transform(cmakeFiles.begin(), cmakeFiles.end(), std::back_inserter(m_toolchainConfigFiles),
       [](const std::filesystem::path& item) {
         return item.generic_string();
-    });
+      });
   }
+}
+
+bool ProjMgrWorker::GetToolchainConfig(const string& toolchainName, const string& toolchainVersion, string& configPath, string& selectedConfigVersion) {
+  RetrieveToolchainConfigFiles();
   // find greatest compatible file
   bool found = false;
   static const regex regEx = regex("(\\w+)\\.(\\d+\\.\\d+\\.\\d+)");
@@ -5189,7 +5193,7 @@ bool ProjMgrWorker::GetToolchainConfig(const string& toolchainName, const string
     }
   }
   if (!found) {
-    m_toolchainErrors[MessageType::Error].insert("no toolchain cmake files found for '" + toolchainName + "' in '" + compilerRoot + "' directory");
+    m_toolchainErrors[MessageType::Error].insert("no toolchain cmake files found for '" + toolchainName + "' in '" + GetCompilerRoot() + "' directory");
   }
   return found;
 }

tools/projmgr/test/src/ProjMgrUnitTests.cpp

@@ -5221,7 +5221,7 @@ warning csolution: build-type '.UnknownBuild' does not exist in solution\n\
 warning csolution: target-type '+Debug' does not exist in solution, did you mean '.Debug'?\n\
 warning csolution: target-type '+MappedDebug' does not exist in solution, did you mean '.MappedDebug'?\n\
 warning csolution: target-type '+UnknownTarget' does not exist in solution\n\
-warning csolution: compiler 'Ac6' is not supported\n\
+warning csolution: 'for-compiler: Ac6' is not supported\n\
 ";
   auto errStr = streamRedirect.GetErrorString();
   EXPECT_TRUE(errStr.find(expected) != string::npos);