[projmgr] Add environment node to cbuild-set (#1097)

Author: brondani

tools/projmgr/include/ProjMgrYamlParser.h

@@ -81,6 +81,7 @@ static constexpr const char* YAML_DEVICE_PACK = "device-pack";
 static constexpr const char* YAML_DOWNLOAD_URL = "download-url";
 static constexpr const char* YAML_DSP = "dsp";
 static constexpr const char* YAML_ENDIAN = "endian";
+static constexpr const char* YAML_ENVIRONMENT = "environment";
 static constexpr const char* YAML_ERRORS = "errors";
 static constexpr const char* YAML_EXECUTE = "execute";
 static constexpr const char* YAML_EXECUTES = "executes";

tools/projmgr/schemas/common.schema.json

@@ -1490,7 +1490,11 @@
       "properties": {
         "generated-by": { "type": "string", "description": "Tool name along with version information used to generate this application." },
         "contexts": { "$ref": "#/definitions/BuildSetContextsType", "description": "List of fully specified contexts." },
-        "compiler": { "type": "string", "description": "Selection of compiler used." }
+        "compiler": { "type": "string", "description": "Selection of compiler used." },
+        "environment": {
+          "description": "Environment specific settings.",
+          "additionalProperties": true
+        }
       },
       "additionalProperties": false,
       "required": ["generated-by", "contexts"]

tools/projmgr/src/ProjMgr.cpp

@@ -554,13 +554,14 @@ bool ProjMgr::ParseAndValidateContexts() {
 
   if (m_contextSet) {
     const auto& selectedContexts = m_worker.GetSelectedContexts();
-    m_selectedToolchain = m_worker.GetSelectedToochain();
     if (!selectedContexts.empty()) {
       const string& cbuildSetFile = (m_outputDir.empty() ? m_parser.GetCsolution().directory : m_outputDir) + "/" +
       m_parser.GetCsolution().name + ".cbuild-set.yml";
       // Generate cbuild-set file
-      if (!m_emitter.GenerateCbuildSet(selectedContexts, m_selectedToolchain, cbuildSetFile, m_checkSchema)) {
-        return false;
+      if (!m_context.empty() || !m_selectedToolchain.empty() || !RteFsUtils::Exists(cbuildSetFile)) {
+        if (!m_emitter.GenerateCbuildSet(selectedContexts, m_selectedToolchain, cbuildSetFile, m_checkSchema)) {
+          return false;
+        }
       }
     }
   }

tools/projmgr/src/ProjMgrYamlParser.cpp

@@ -1069,6 +1069,7 @@ const set<string> cbuildSetKeys = {
   YAML_GENERATED_BY,
   YAML_CONTEXTS,
   YAML_COMPILER,
+  YAML_ENVIRONMENT,
 };
 
 const set<string> cbuildPackKeys = {