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How Can I Enforce a Specific Import Path for My Go Packages?

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Dec 04, 2024 pm 01:08 PM

How Can I Enforce a Specific Import Path for My Go Packages?

Enforcing a Designated Import Path in Go

As a new Go developer, you may encounter a scenario where you desire to specify a specific name for importing your packages. This article will guide you through the mechanisms provided by Go to achieve this.

Custom Import Path

Go offers a built-in feature that allows you to customize the import path of your packages. To do so, declare the import path at the beginning of your package file, as seen in the following syntax:

package name // import "your-custom-path"

For instance, if you wish to import your package using "custom/path/mypackage", you would add the following line at the beginning of your package file:

package mypackage // import "custom/path/mypackage"

Example from bcrypt Package

The example mentioned in the question illustrates this concept. The bcrypt package imported from GitHub was intended to be imported with "golang.org/x/crypto/bcrypt", as specified by the following line in the package file:

package bcrypt // import "golang.org/x/crypto/bcrypt"

Hence, trying to import it using "github.com/golang/crypto" resulted in an error, directing the user to the correct import path.

Additional Resources

Go's Import Path Checking: https://golang.org/cmd/go/#hdr-Import_path_checking
Go 1.4 Release Notes (Canonical Imports): https://golang.org/doc/go1.4#canonicalimports

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