demoing other error levels than warn/error; rename line and file fields in errPos

src/error-demo/error-demo.cc

@@ -8,13 +8,46 @@ int main()
 {
     using namespace nix;
 
-    std::unique_ptr<Logger> logger(makeDefaultLogger());
+    makeDefaultLogger();
 
-    verbosity = lvlError;
+    verbosity = lvlVomit;
 
     // In each program where errors occur, this has to be set.
     ErrorInfo::programName = std::optional("error-demo");
 
+    // For completeness sake, info through vomit levels.
+    // But this is maybe a heavy format for those.
+    logger->logEI(
+        ErrorInfo { .level = lvlInfo,
+                    .name = "Info name",
+                    .description = "Info description",
+                  });
+
+    logger->logEI(
+        ErrorInfo { .level = lvlTalkative,
+                    .name = "Talkative name",
+                    .description = "Talkative description",
+                  });
+
+    logger->logEI(
+        ErrorInfo { .level = lvlChatty,
+                    .name = "Chatty name",
+                    .description = "Chatty description",
+                  });
+
+    logger->logEI(
+        ErrorInfo { .level = lvlDebug,
+                    .name = "Debug name",
+                    .description = "Debug description",
+                  });
+
+    logger->logEI(
+        ErrorInfo { .level = lvlVomit,
+                    .name = "Vomit name",
+                    .description = "Vomit description",
+                  });
+
+
     // Error in a program; no hint and no nix code.
     logError(
         ErrorInfo { .name = "name",

src/libutil/error.cc

@@ -17,9 +17,9 @@ std::ostream& operator<<(std::ostream &os, const hintformat &hf)
 string showErrPos(const ErrPos &errPos)
 {
     if (errPos.column > 0) {
-        return fmt("(%1%:%2%)", errPos.lineNumber, errPos.column);
+        return fmt("(%1%:%2%)", errPos.line, errPos.column);
     } else {
-        return fmt("(%1%)", errPos.lineNumber);
+        return fmt("(%1%)", errPos.line);
     };
 }
 
@@ -29,7 +29,7 @@ void printCodeLines(const string &prefix, const NixCode &nixCode)
     if (nixCode.prevLineOfCode.has_value()) {
         std::cout << fmt("%1% %|2$5d|| %3%",
                          prefix,
-                         (nixCode.errPos.lineNumber - 1),
+                         (nixCode.errPos.line - 1),
                          *nixCode.prevLineOfCode)
                   << std::endl;
     }
@@ -37,7 +37,7 @@ void printCodeLines(const string &prefix, const NixCode &nixCode)
     // line of code containing the error.%2$+5d%
     std::cout << fmt("%1% %|2$5d|| %3%",
                      prefix,
-                     (nixCode.errPos.lineNumber),
+                     (nixCode.errPos.line),
                      nixCode.errLineOfCode)
               << std::endl;
 
@@ -61,7 +61,7 @@ void printCodeLines(const string &prefix, const NixCode &nixCode)
     if (nixCode.nextLineOfCode.has_value()) {
         std::cout << fmt("%1% %|2$5d|| %3%",
                          prefix,
-                         (nixCode.errPos.lineNumber + 1),
+                         (nixCode.errPos.line + 1),
                          *nixCode.nextLineOfCode)
                   << std::endl;
     }
@@ -87,16 +87,26 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
         break;
     }
     case Verbosity::lvlInfo: {
-        levelString = ANSI_YELLOW;
+        levelString = ANSI_GREEN;
         levelString += "info:";
         levelString += ANSI_NORMAL;
         break;
     }
-    case Verbosity::lvlTalkative:
+    case Verbosity::lvlTalkative: {
-    case Verbosity::lvlChatty:
+        levelString = ANSI_GREEN;
+        levelString += "talk:";
+        levelString += ANSI_NORMAL;
+        break;
+    }
+    case Verbosity::lvlChatty: {
+        levelString = ANSI_GREEN;
+        levelString += "chat:";
+        levelString += ANSI_NORMAL;
+        break;
+    }
     case Verbosity::lvlVomit: {
         levelString = ANSI_GREEN;
-        levelString += "info:";
+        levelString += "vomit:";
         levelString += ANSI_NORMAL;
         break;
     }
@@ -131,14 +141,14 @@ std::ostream& operator<<(std::ostream &out, const ErrorInfo &einfo)
 
     // filename.
     if (einfo.nixCode.has_value()) {
-        if (einfo.nixCode->errPos.nixFile != "") {
+        if (einfo.nixCode->errPos.file != "") {
             string eline = einfo.nixCode->errLineOfCode != ""
                            ? string(" ") + showErrPos(einfo.nixCode->errPos)
                            : "";
 
             out << fmt("%1%in file: " ANSI_BLUE "%2%%3%" ANSI_NORMAL,
                        prefix,
-                             einfo.nixCode->errPos.nixFile,
+                       einfo.nixCode->errPos.file,
                        eline) << std::endl;
             out << prefix << std::endl;
         } else {

src/libutil/error.hh

@@ -22,16 +22,16 @@ typedef enum {
 
 struct ErrPos
 {
-    int lineNumber;
+    int line;
     int column;
-    string nixFile;
+    string file;
 
     template <class P>
     ErrPos& operator=(const P &pos)
     {
-        lineNumber = pos.line;
+        line = pos.line;
         column = pos.column;
-        nixFile = pos.file;
+        file = pos.file;
         return *this;
     }
 

src/libutil/logging.cc

@@ -146,11 +146,40 @@ struct JSONLogger : Logger
 
     void logEI(const ErrorInfo & ei) override
     {
-        // nlohmann::json json;
+        // add fields like Pos info and etc?
-        // json["action"] = "msg";
+        std::ostringstream oss;
-        // json["level"] = lvl;
+        oss << ei;
-        // json["msg"] = fs.s;
+
-        // write(json);
+        nlohmann::json json;
+        json["action"] = "msg";
+        json["level"] = ei.level;
+        json["msg"] = oss.str();
+
+        // Extra things that COULD go into json.  Useful?  
+        // TODO: decide if useful.
+        // TODO: make a json obj that goes into json["msg"]?
+        json["name"] = ei.name;
+        json["description"] = ei.description;
+        if (ei.hint.has_value())
+        {
+          json["hint"] = ei.hint->str();
+        }
+        if (ei.nixCode.has_value())
+        {
+          if (ei.nixCode->errPos.line != 0)
+            json["line"] = ei.nixCode->errPos.line;
+          if (ei.nixCode->errPos.column != 0)
+            json["column"] = ei.nixCode->errPos.column;
+          if (ei.nixCode->errPos.file != "")
+            json["file"] = ei.nixCode->errPos.file;
+          if (ei.nixCode->prevLineOfCode.has_value())
+            json["prevLineOfCode"] = *ei.nixCode->prevLineOfCode;
+          json["errLineOfCode"] = ei.nixCode->errLineOfCode;
+          if (ei.nixCode->nextLineOfCode.has_value())
+            json["nextLineOfCode"] = *ei.nixCode->nextLineOfCode;
+        }
+
+        write(json);
     }
 
     void startActivity(ActivityId act, Verbosity lvl, ActivityType type,