Enable all warnings

[fakuivan]

How can -Wall and -Wextra be added so that the verify step shows these warnings in the "problems" panel in vs code? I tried setting buildPreferences to this but it doesn't seem to have any effect on the output:

    "buildPreferences": [
        ["build.extra_flags", "-Wall"],
        ["compiler.cpp.extra_flags", "-Wall"]
    ]

[AlexIII]

Tried in 0.4.8

Before:

Compiling sketch...
"C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10816 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\standard" "C:\\Users\\user\\AppData\\Local\\Temp\\arduino_build_597155\\sketch\\Blink.ino.cpp" -o "C:\\Users\\user\\AppData\\Local\\Temp\\arduino_build_597155\\sketch\\Blink.ino.cpp.o"

After I add

"buildPreferences": [
        ["build.extra_flags", "-Wall"]
    ]

Compiling sketch...
"C:\\Program Files (x86)\\Arduino\\hardware\\tools\\avr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10816 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -Wall "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\cores\\arduino" "-IC:\\Program Files (x86)\\Arduino\\hardware\\arduino\\avr\\variants\\standard" "C:\\Users\\user\\AppData\\Local\\Temp\\arduino_build_308987\\sketch\\Blink.ino.cpp" -o "C:\\Users\\user\\AppData\\Local\\Temp\\arduino_build_308987\\sketch\\Blink.ino.cpp.o"

You can find that the second output has -Wall and the first does not.

[fakuivan]

@AlexIII How do you actually compile the sketch? The only option I get is to "Verify" it.

[AlexIII]

Verify runs compilation. In order to see full compile process output create .vscode\settings.json in your workspace directory and add

{
    "arduino.logLevel": "verbose"
}

[fakuivan]

Sure, that shows the warnings, but they don't show up in the problem pane

[benmcmorran]

Since it looks like you got this working in the output pane, I'm going to go ahead and close this issue as a duplicate of #1376. We'll need to change the extension to either use VS Code's task system or do additional parsing of the compiler output to support the problems pane.