Is it possible to build task based on the specific file extension?

user_11720066 0
Viewed 268

Specifically, I'd like one keyboard shortcut to build an executable file with the correct compilation command and flags, whether the source file is a .c or a .cpp.

For example, my current tasks file, which compiles .cpp files, is as follows:

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++-9 build active file",
            "command": "/usr/bin/g++",
            "args": [
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
            "options": {
                "cwd": "${workspaceFolder}"
            },
            "problemMatcher": [
                "$gcc"
            ],
            "group": {
                "kind": "build",
                "isDefault": true
            },
            "detail": "Task generated by Debugger."
        }
    ]
}

I noticed that if I change "commands" to "/usr/bin/gcc", it's able to compile .c files.

So what I'm looking to have my tasks file do is:

  1. Extract the extension (.c or .cpp) of the file on which I'm building.
  2. Set a variable that will be given to "command".
  3. Conditionally change that variable to "/usr/bin/gcc" or "/usr/bin/g++", based on the extracted extension.

Is all that possible? Do you have better suggestion to achieve that kind of conditional building?

Thanks!

vscode-tasks visual-studio-code c c++
1 Answers

You can use the extension Command Variable.

Use the command: extension.commandvariable.file.fileAsKey

The order of the extensions is important.

{
    "version": "2.0.0",
    "tasks": [
        {
            "type": "cppbuild",
            "label": "C/C++: g++ build active file",
            "command": "${input:pickCompiler}",
            "args": [
                "-g",
                "${file}",
                "-o",
                "${fileDirname}/${fileBasenameNoExtension}"
            ],
             ...
             ...
        }
    ],
    "inputs": [
      {
        "id": "pickCompiler",
        "type": "command",
        "command": "extension.commandvariable.file.fileAsKey",
        "args": {
          ".cpp": "/usr/bin/g++",
          ".c": "/usr/bin/gcc"
        }
      }
    ]
}
user_99383170
Related