[Awesome Go] Use copy to copy structs to/from others structs easier

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Copy

This package is meant to make copying of structs to/from others structs a bit easier.

Nested structures, embedded types, pointers, sql null types are supported.

Installation

Standard go get:

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$ go get -u github.com/gotidy/copy

Example

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type Person struct {
    Name       string
    MiddleName *string
    Surname    string
}

type User struct {
    Person
    Email   string
    Age     int8
    Married bool
}

type Employee struct {
    Name       string
    MiddleName string
    Surname    string
    Email      string
    Age        int
}

src := User{
    Person: Person{
        Name:       "John",
        MiddleName: nil,
        Surname:    "Smith",
    },
    Email:   "[email protected]",
    Age:     33,
    Married: false,
}
dst := Employee{}

copiers := copy.New() // New("json")
copiers.Copy(&dst, &src)

// Or more fast use case is to create the type specific copier.

copier := copiers.Get(&Employee{}, &User{}) // Created once for a pair of types.
copier.Copy(&dst, &src)

References

[1] GitHub - gotidy/copy: Package for fast copying structs of different types - https://github.com/gotidy/copy

[2] copy · pkg.go.dev - https://pkg.go.dev/github.com/gotidy/copy

[3] GitHub - ulule/deepcopier: simple struct copying for golang - https://github.com/ulule/deepcopier

[4] GitHub - jinzhu/copier: Copier for golang, copy value from struct to struct and more - https://github.com/jinzhu/copier