terminal: error output

code/espurna/terminal_commands.cpp

@@ -100,29 +100,33 @@ void error(Print& print, const String& message) {
 }
 
 void error(const espurna::terminal::CommandContext& ctx, const String& message) {
-    error(ctx.output, message);
+    error(ctx.error, message);
 }
 
-bool find_and_call(CommandLine cmd, Print& out) {
+bool find_and_call(CommandLine cmd, Print& output, Print& error_output) {
     const auto* command = find(cmd.argv[0]);
     if (command) {
-        (*command).func(CommandContext{
-            .argv = std::move(cmd.argv),
-            .output = out });
+        (*command).func(
+            CommandContext{
+                .argv = std::move(cmd.argv),
+                .output = output,
+                .error = error_output,
+            });
+
         return true;
     }
 
-    error(out, F("Command not found"));
+    error(output, F("Command not found"));
     return false;
 }
 
-bool find_and_call(StringView cmd, Print& out) {
+bool find_and_call(StringView cmd, Print& output, Print& error_output) {
     auto result = parse_line(cmd);
     if (result.error != parser::Error::Ok) {
         String message;
         message += STRING_VIEW("TERMINAL: ");
         message += parser::error(result.error);
-        error(out, message);
+        error(error_output, message);
         return false;
     }
 
@@ -130,10 +134,14 @@ bool find_and_call(StringView cmd, Print& out) {
         return false;
     }
 
-    return find_and_call(std::move(result), out);
+    return find_and_call(std::move(result), output, error_output);
+}
+
+bool find_and_call(StringView cmd, Print& output) {
+    return find_and_call(cmd, output, output);
 }
 
-bool api_find_and_call(StringView cmd, Print& out) {
+bool api_find_and_call(StringView cmd, Print& output, Print& error_output) {
     bool result { true };
 
     LineView lines(cmd);
@@ -144,7 +152,7 @@ bool api_find_and_call(StringView cmd, Print& out) {
         }
 
         // prefer to break early when commands are missing
-        if (!find_and_call(line, out)) {
+        if (!find_and_call(line, output, error_output)) {
             result = false;
             break;
         }
@@ -153,5 +161,9 @@ bool api_find_and_call(StringView cmd, Print& out) {
     return result;
 }
 
+bool api_find_and_call(StringView cmd, Print& output) {
+    return api_find_and_call(cmd, output, output);
+}
+
 } // namespace terminal
 } // namespace espurna

code/espurna/terminal_commands.h

@@ -24,6 +24,7 @@ namespace terminal {
 struct CommandContext {
     Argv argv;
     Print& output;
+    Print& error;
 };
 
 using CommandFunc = void(*)(CommandContext&&);
@@ -66,10 +67,12 @@ bool find_and_call(StringView, Print& output);
 bool find_and_call(CommandLine, Print& output);
 
 // search the given string for valid commands and call them in sequence
-// stops on first 'not found' command, does not take into an account
-// error output of any commands (TODO ?)
 bool api_find_and_call(StringView, Print& output);
 
+// search the given string for valid commands and call them in sequence
+// separate outputs for command and errors
+bool api_find_and_call(StringView, Print& output, Print& error);
+
 // helper functions for most common success output
 void ok(Print&);
 void ok(const espurna::terminal::CommandContext&);