I have the C/C++ ms-vscode.cpptools extension installed (and the Code Runner).
This is my task.json
"version": "2.0.0",
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: gcc build active file",
"command": "/usr/bin/gcc",
"args": [
"-g",
"-Wall",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${workspaceFolder}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "compiler: /usr/bin/gcc"
}
]
Note the -Wall option in the args part.
When I compile and run the code the warnings don't show up in my terminal, the errors only.
Am I missing something?
Solved it was the configuration of code runner to be edited as well.
"code-runner.executorMap": {
...
"c": "cd $dir && gcc -Wall $fileName -o $fileNameWithoutExt && $dir$fileNameWithoutExt",
...
Now if I build via VSCode and via code runner I have my warnings displayed.
Related
I'm using an old 2015 macbook air ver 10.13.6
vs code Version: 1.74.0 (Universal)
extensions : C/C++ , Code Runner
I'm learning c++ and here's the basic code I'm trying to test to see if my vscode is good to go
I'm doing this in a C++Projects folder and the file name helloworld.cpp
#include <iostream>
using namespace std;
int main() {
cout << "Hello World!";
return 0;
}
when I run my file it says Build finished successfully.
but afterwards it says unable to start debugging
here are the other files I have that pop up
launch.json :
"configurations": [
{
"name": "C/C++: clang++ build and debug active file",
"type": "cppdbg",
"request": "launch",
"program": "${fileDirname}/${fileBasenameNoExtension}",
"args": [],
"stopAtEntry": true,
"cwd": "${workspaceFolder}",
"environment": [],
"externalConsole": false,
"MIMode": "lldb",
"preLaunchTask": "C/C++: clang++ build active file"
}
]
tasks.json :
{
"tasks": [
{
"type": "cppbuild",
"label": "C/C++: clang++ build active file",
"command": "/usr/bin/clang++",
"args": [
"-fcolor-diagnostics",
"-fansi-escape-codes",
"-g",
"${file}",
"-o",
"${fileDirname}/${fileBasenameNoExtension}"
],
"options": {
"cwd": "${fileDirname}"
},
"problemMatcher": [
"$gcc"
],
"group": {
"kind": "build",
"isDefault": true
},
"detail": "Task generated by Debugger."
}
],
"version": "2.0.0"
}
Please help I've been searching for answers on this and can't seem to find any. Much appreciated!
checked to see if clang was installed. yes
changed the task and launch files
Install the VS Code extension, 'code lldb', with following config:
{
"name": "clang++ - Build and debug active file",
"type": "lldb",
"request": "launch",
"program": "${fileDirname}/${fileBasenameNoExtension}",
"args": [],
"cwd": "${workspaceFolder}",
"preLaunchTask": "C/C++: clang++ build active file" //<-- your build task name
}
I compiled v8 on Linux Min 20.2 using VsCode.
My build tasks.json task looks like this
"tasks": [
{
"label": "gm x64.debug all",
"type": "shell",
"command": "tools/dev/gm.py x64.debug all",
"group": {
"kind": "build",
"isDefault": true
},
"presentation": {
"reveal": "always",
"panel": "dedicated",
"clear": true
},
"problemMatcher": {
"fileLocation": [
"relative",
"${workspaceFolder}out/x64.debug/"
],
"pattern": {
"regexp": "^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$",
"file": 1,
"line": 2,
"column": 3,
"severity": 4,
"message": 5
}
}
}
launch.json config
{
"name": "(gdb) launch hello_world",
"type": "cppdbg",
"request": "launch",
"program": "${workspaceFolder}/out/x64.debug/v8_hello_world",
"args": [],
"stopAtEntry": false,
"cwd": "${fileDirname}",
"environment": [],
"externalConsole": false,
"MIMode": "gdb",
"setupCommands": [
{
"description": "Enable pretty-printing for gdb",
"text": "-enable-pretty-printing",
"ignoreFailures": true
}
]
},
Breakpoints working well also callstack is available but there is no local variables.
I use extension "C/C++ (by Microsoft)".
How I can enable them?
(V8 developer here.)
Inspecting local variables should work by default. You could try running the compiled binary in GDB to see if something is missing from the binaries, or it's an issue with VSCode's integrated debugger or its configuration.
One thing to keep in mind is that tools/dev/gm.py will not overwrite existing build settings. If you e.g. manually put symbol_level = 1 or v8_optimized_debug = true (two examples for settings that will break your debugging experience) into out/x64.debug/args.gn, then gm.py will maintain these settings, assuming that you put them there on purpose. To get back to the defaults, you can rm -rf out/x64.debug. You can also look up the default settings in gm.py's source.
Does anyone knows why vs-code can't find c++ compiler. I have used vc-code for several months without any problems, but suddenly without any clear reason it can't find the compiler anymore!! does somebody here can figure out what could be causing this.
tasks.json
{
"version": "2.0.0",
"tasks": [
{
"label": "echo",
"type": "shell",
"command":"g++ $(pkg-config --cflags --libs opencv gl glew sdl2)",
"args": ["-g", "${workspaceFolder}/*.cpp", "-lstdc++fs", "-pthread"],
"group":{
"kind": "build",
"isDefault": true
}
}
]
}
c_cpp_properties.json
{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}",
"/usr/include/c++/6.3.0",
"/usr/include/c++/6",
"/usr/include/x86_64-linux-gnu/c++/6",
"/usr/include/c++/6/backward",
"/usr/lib/gcc/x86_64-linux-gnu/6/include",
"/usr/local/include",
"/usr/lib/gcc/x86_64-linux-gnu/6/include-fixed",
"/usr/include/x86_64-linux-gnu",
"/usr/include",
"/usr/bin"
],
"defines": [],
"intelliSenseMode": "clang-x64",
"browse": {
"path": [
"${workspaceFolder}",
"/usr/include/c++/6.3.0",
"/usr/include/c++/6",
"/usr/include/x86_64-linux-gnu/c++/6",
"/usr/include/c++/6/backward",
"/usr/lib/gcc/x86_64-linux-gnu/6/include",
"/usr/local/include",
"/usr/lib/gcc/x86_64-linux-gnu/6/include-fixed",
"/usr/include/x86_64-linux-gnu",
"/usr/include",
"/usr/bin"
],
"limitSymbolsToIncludedHeaders": true,
"databaseFilename": ""
},
"compilerPath": "/usr/bin/gcc",
"cStandard": "c11",
"cppStandard": "c++17"
}
],
"version": 3
}
output
/bin/bash: g++ $(pkg-config --cflags --libs opencv gl glew sdl2): command not found
NOTE: I still can use g++ to compile files in the integrated terminal in vs-code, but it cannot be recognized by tasks.json !!!
i don't think that this could relate to this problem, cause i have been using it like this for long time with no problem. and in general during the compilation all of this parts gonna be clipped together.
You updated your command so your statement is not true more. Namely you added command substitution $(...) that is not processed in Visual Studio Code and passed as is in once command to bash. The right solution is below:
"tasks": [
{
"label": "echo",
"type": "process",
"command":"/bin/bash",
"args": [ "-c", "g++", "$(pkg-config --cflags --libs opencv gl glew sdl2)", "-g", "${workspaceFolder}/*.cpp", "-lstdc++fs", "-pthread"],
"group":{
"kind": "build",
"isDefault": true
}
}
]
Or bit shorter
"tasks": [
{
"label": "echo",
"type": "process",
"command":"/bin/bash",
"args": [ "-c", "g++ $(pkg-config --cflags --libs opencv gl glew sdl2) -g ${workspaceFolder}/*.cpp -lstdc++fs -pthread"],
"group":{
"kind": "build",
"isDefault": true
}
}
]
My VSCode settings (workspace settings in my case) are setup to use bash as the default terminal:
{
"terminal.integrated.shell.windows": "C:\\WINDOWS\\Sysnative\\bash.exe"
}
I need this to be able to debug my app.
My tasks.json looks like that:
{
"version": "2.0.0",
"tasks": [
{
"type": "typescript",
"tsconfig": "./tsconfig.json",
"group": {
"kind": "build",
"isDefault": true
}
}
]
}
So when I try to build my project / run the build task (i.e. Ctrl + B), I get the following error:
> Executing task: tsc -p "c:\PATH_TO_MY_PROJECT\tsconfig.json" <
error TS5058: The specified path does not exist: 'c:\PATH_TO_MY_PROJECT\tsconfig.json'.
The terminal process terminated with exit code: 1
If I disable bash in my settings an use the default Windows terminal, the build works fine.
I remember it working few VSCode updates ago, but it stopped working in the latest VSCode versions. Not sure how that's related.
I tried to fix this for a while, but finally gave up on the built-in Typescript task and instead just used a custom task:
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
"version": "2.0.0",
"tasks": [
{
"label": "Typescript watch",
"type": "shell",
"command": "tsc --watch",
"group": {
"kind": "build",
"isDefault": true
},
"presentation": {
"reveal": "always",
"panel": "new"
},
"problemMatcher": [
"$tsc"
]
}
]
}
According to the documentation, it is possible to launch a program before debugging:
To launch a task before the start of each debug session, set the preLaunchTask to the name of one of the tasks specified in tasks.json.
I've not seen example syntax of a "named" task, but the schema documentation reveals a property called taskName. I tried using that to link my launch.json preLaunchTasks to the task, but it didn't work. When I launched my program, Visual Studio Code reported this error:
Could not find a unique task 'launch-core'. Make sure the task exists and that it has a unique name.
My custom "named" task looked something like this:
{
"taskName": "launch-core",
"version": "0.1.0",
"command": "C:\\utils\\mystuff.exe",
// The command is a shell script
"isShellCommand": true,
// Show the output window only if unrecognized errors occur.
"showOutput": "silent",
}
I then tried changing the property name from taskName to just name, based on this link. That also didn't work.
Intellisense gives no suggestions of how to name a task.
Does anybody know how to uniquely name a task in the tasks.json file? What is the syntax? What is the property name?
Ultimately I'd like to execute two or three node.js processes before my own node.js app is launched. For example, I'd like to have the following three apps launched before my app is launched into the debugger:
sh -c 'cd ./manager/ && node manager.js'
sh -c 'cd ./adapter/ && node adapter.js'
sh -c 'cd ./core/ && node core.js'
If I'm working on a Windows box, my task might look something like this:
{
"taskName": "core-launch",
"version": "0.1.0",
// The command is tsc. Assumes that tsc has been installed using npm install -g typescript
"command": "start",
// The command is a shell script
"isShellCommand": true,
// Show the output window only if unrecognized errors occur.
"showOutput": "silent",
// args is the HelloWorld program to compile.
"args": [
"ACD-Manager",
"/B",
"/D",
"./manager/",
"node",
"manager.js"
]
}
The above task using using the cmd start capability. I'm not sure yet how to make several node tasks launch instead of one, but I can't even get one task to launch because of this task-naming issue.
How do I name a task in the tasks.json file?
FWIW, I'm using VS Code 1.20.1 and here's how I got my preLaunchTask to work:
In launch.json:
{
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
...
"preLaunchTask": "npm: build",
}
]
}
In my package.json:
{
...
"scripts": {
"build": "tsc"
...
}
}
So, if it's still relevant, or if someone finds this thread with the same problem, I've just figured it out how it works:
In the tasks.json, you need to create a 'tasks' array - code hint will help you with that - which holds an array of objects. Inside an object, you can have the 'taskName' key-value pair.
Example:
{
"version": "0.1.0",
"command": "npm",
"isShellCommand": true,
"args": ["run-script", "webpack"],
"showOutput": "always",
"tasks": [
{
"taskName": "runwebpack",
"suppressTaskName": true
}
]
}
In my case, I had to run the npm run-script webpack command before running my project.
In the launch.json file, the "preLaunchTask": "runwebpack" will work now.
Note: the suppressTaskName is true in my example. Omitting it, or setting it to false will result in VS Code appending the taskName after the command.
A more general approach would be something like this:
{
"version": "0.1.0",
"command": "npm",
"isShellCommand": true,
"args": ["run-script"],
"showOutput": "always",
"tasks": [
{ "taskName": "webpack" }
]
}
With the latter example, you can extend the tasks array with other scripts to be run also.
Hint for my usage: npm run-script fetches what to do from the package.json file's scripts object.
Edit: this works with VS Code 1.3.1
For version 2.0.0 configuration you now use label instead of taskName.
package.json:
...
"scripts": {
"tsc": "tsc",
...
}
...
launch.json (My source is in the src directory and tsc compiles to the dist directory):
{
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
"preLaunchTask": "Compile",
"name": "Launch Program",
"program": "${workspaceFolder}/src/index.ts",
"outFiles": [
"${workspaceFolder}/dist/**/*.js"
],
"protocol": "inspector",
"sourceMaps": true
}
]
}
tasks.json:
{
"version": "2.0.0",
"tasks": [
{
"label": "Compile",
"type": "npm",
"script": "tsc",
"problemMatcher": []
}
]
}
For vscode 1.36.1 (1.36.1):
tasks.json:
{
"version": "2.0.0",
"tasks": [
{
"label": "build:tsc",
"type": "npm",
"script": "build:tsc"
},
{
"label": "clean",
"type": "npm",
"script": "clean"
},
{
"label": "build",
"dependsOrder": "sequence",
"dependsOn": ["clean", "build:tsc"]
}
]
}
launch.json:
{
"version": "0.2.0",
"configurations": [
{
"type": "node",
"request": "launch",
"name": "Launch Program",
"program": "${workspaceFolder}/dist/main.js",
"preLaunchTask": "build",
"outFiles": ["${workspaceFolder}/dist/**/*.js"],
"console": "integratedTerminal"
}
]
}
Before running node ${workspaceFolder}/dist/main.js, the preLaunchTask will run build task firstly which includes two subtasks: clean and build. It will run clean task firstly, then run build task.
You can specify the label of a task to preLaunchTask option.
The question title is:
"Using “preLaunchTasks” and Naming a Task in Visual Studio Code
I needed to define preLaunchTask***s***.
You can config multiple tasks using the dependsOn property described here
For example, a compound task in your tasks.json:
{
"version": "2.0.0",
"tasks": [
{
"label": "Client Build",
"command": "gulp",
"args": ["build"],
"options": {
"cwd": "${workspaceRoot}/client"
}
},
{
"label": "Server Build",
"command": "gulp",
"args": ["build"],
"options": {
"cwd": "${workspaceRoot}/server"
}
},
{
"label": "Build",
"dependsOn": ["Client Build", "Server Build"]
}
]
}
You can find more information about naming tasks here.
I've only really seen the taskName used in relation to Gulp; I'm sure there are others but nothing that I have much insight into. Perhaps this can get you off to a start with what you already have?
Run a pre-launch task in VSCODE