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Use `golines` to format Go's long line code

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Published on Apr 15, 2021

1 min read

VS Code already does a great work to use gofmt to auto format your go code, but it won't format your lone line go code. To do it you could install a tool named golines.

Steps:

1, Install golines: go get -u github.com/segmentio/golines

2, Open VS code, install the plugin named "Run on Save"

Screen Shot 2021-04-15 at 5.50.28 PM.png

3, Go to VS Code settings, search "Run on Save", then click "Edit in settings.json"

Screen Shot 2021-04-15 at 5.51.03 PM.png

4, For the emeraldwalk.runonsave 's bracket, add commands like below:

"emeraldwalk.runonsave": {
    "commands": [
        {
            "match": "\\.go$",
            "cmd": "golines ${file} -m 79 -w"
        }
    ]
}

You can twist the parameters above, for example,-m 79 means if find a line has more than 79 chars, run golines to break/format it. More parameter please check the reference below.

Reference

 
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