Question 216602 in Visual Studio Code Question posted in
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Visual Studio Code – How do I add a keybinding in VS Code when a file exists?

I want to run npm run start when I press F5, but only when the file, package.json exists in the root of the project (i.e. when the folder open is a Node.js project).

To illustrate what I’m trying to do, let’s pretend that file.exists package.json does what I want it to (which it doesn’t).

~/.config/Code/User/keybindings.json:

[
  {
    "key": "f5",
    "command": "workbench.action.terminal.sendSequence",
    "args": {
        "text": "npm run startr"
    },
    "when": "file.exists package.json"
  },
]

What is the correct way to do this? I can’t see anything related to testing if a file exists in the docs.

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2

Answers


  1. Chosen as BEST ANSWER
    0

    Based on rioV8's answer, I expanded upon the solution by showing the terminal:

      {
    "key": "f5",
    "command": "runCommands",
    "args": {
      "commands": [
        "workbench.action.terminal.focus",
        {
          // depends on: https://marketplace.visualstudio.com/items?itemName=rioj7.command-variable
          "command": "extension.commandvariable.inTerminal",
          "args": {
            "command": "extension.commandvariable.transform",
            "args": { "text": "npm run start" },
            "addCR": true,
            "when": "file.exists ${workspaceFolder}${pathSeparator}package.json"
          }
        }
      ]
    },
  },

  2. 0

    You can use the extension Command Variable v1.55.0 and the command extension.commandvariable.inTerminal

      {
    "key": "f5",
    "command": "extension.commandvariable.inTerminal",
    "args": {
      "command": "extension.commandvariable.transform",
      "args": { "text": "npm run start" },
      "addCR": true,
      "when": "file.exists ${workspaceFolder}${pathSeparator}package.json"
    }
  }

    The keybinding will always execute. The when test is performed in the command not before the command execution. If you use F5 then you lose the default launch functionality.

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