<h2>Running Staticcheck</h2>

<h3>Checking packages</h3>

<p>

The <code>staticcheck</code> command works much like <code>go build</code> or <code>go vet</code> do.

It supports all of the same package patterns.

For example, <code>staticcheck .</code> will check the current package, and <code>staticcheck ./...</code> will check all packages.

For more details on specifying packages to check, see <code>go help packages</code>

</p>

<h3>Explaining checks</h3>

<p>

You can use <code>staticcheck -explain &lt;check&gt;</code> to get a helpful description of a check.

</p>

<p>

Every diagnostic that <code>staticcheck</code> reports is annotated with the identifier of the specific check that found the issue.

For example, in

</p>

<pre><code>foo.go:1248:4: unnecessary use of fmt.Sprintf (S1039)</code></pre>

<p>

the check's identifier is <code>S1039</code>.

Running <code>staticcheck -explain S1039</code> will output the following:

</p>

<pre><code>Unnecessary use of fmt.Sprint

Calling fmt.Sprint with a single string argument is unnecessary and identical to using the string directly.

Available since

2020.1

Online documentation

https://staticcheck.dev/docs/checks#S1039</code></pre>

<p>

The output includes a one-line summary,

one or more paragraphs of helpful text,

the first version of Staticcheck that the check appeared in,

and a link to online documentation, which contains the same information as the output of <code>staticcheck -explain</code>.

</p>