How to Automatically Run `go fmt` on Save in Visual Studio Code?

Automating Go fmt on Save in Visual Studio Code

The ability to automatically run Go fmt on save in Visual Studio Code is a convenient feature for maintaining code formatting standards. Let's explore how to implement this functionality.

Enable Formatting on Save

The "editor.formatOnSave" setting allows you to configure if formatting operations should be performed upon saving a file. To enable this feature:

1. Open Visual Studio Code settings (Ctrl ,).
2. Search for "editor.formatOnSave."
3. Set its value to "true."

Run Go fmt Specifically

To ensure that Go fmt is specifically executed on save, install the "Go" extension for Visual Studio Code if not already installed. Once installed:

1. Open the Command Palette (Ctrl Shift P).
2. Search for "Preferences: Open Settings (JSON)."
3. In the settings file, add the following line:

"go.formatTool": "go-fmt"

Additional Options

Beyond formatting, the Visual Studio Code extension for Go also offers various other useful features:

• Run Package Tests: Clicking the "run package tests" link above the package declaration displays a visual representation of code coverage.
• Go Extension by Go Team: This extension has now been adopted by the official Go team.

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