How to Debug Go Programs with Build Tags in Visual Studio Code?

Debugging Go with Tags in Visual Studio Code and Delve Debugger

Introduction

Debugging Go programs with build tags can be a challenge, as these tags specify which parts of the code to compile for different build configurations. This article provides a solution for debugging with build tags using Visual Studio Code and the Delve debugger.

Solution: Specify Build Tags in Launch Configuration

Visual Studio Code's Go plugin supports a "launch.json" configuration that allows you to specify build flags. To debug with build tags, add a "buildFlags" key to the launch configuration with a value of "-tags Tag", where "Tag" is the desired build tag.

For example, to debug with the build tag "THISISAFLAG", the launch configuration should include:

<code class="json">"buildFlags": "-tags THISISAFLAG"</code>

Additional Considerations

Multiple Build Tags:

Currently, there appears to be a bug that disallows specifying multiple build tags using the "buildFlags" key.

Separate Launch Configurations:

If you have multiple build configurations each requiring different build tags, you can create separate launch configurations for each. This allows you to specify the appropriate build tags for each configuration without having to modify the build flags manually.

Example

The following example illustrates a launch configuration that builds and debugs a Go program with the build tag "THISISAFLAG":

<code class="json">{
  "version": "0.2.0",
  "configurations": [
    {
      "name": "DebugBinWithTag",
      "type": "go",
      "request": "launch",
      "mode": "exec",
      "program": "${workspaceRoot}/main.go",
      "env": {},
      "args": [],
      "showLog": true,
      "buildFlags": "-tags THISISAFLAG"
    }
  ]
}</code>

By following these steps, you can easily debug Go programs with build tags in Visual Studio Code and the Delve debugger.

The above is the detailed content of How to Debug Go Programs with Build Tags in Visual Studio Code?. For more information, please follow other related articles on the PHP Chinese website!