beyang / go-version

Version normalizer and comparison library for go

go-version

Version normalizer and comparison library for go, heavy based on PHP version_compare function and Version comparsion libs from Composer PHP project

Installation

The recommended way to install go-version

go get github.com/mcuadros/go-version

Examples

How import the package

import (
    "github.com/mcuadros/go-version"
)

version.Normalize(): Normalizes a version string to be able to perform comparisons on it

version.Normalize("10.4.13-b")
//Returns: 10.4.13.0-beta

version.CompareSimple(): Compares two normalizated version number strings

version.CompareSimple("1.2", "1.0.1")
//Returns: 1

version.CompareSimple("1.0rc1", "1.0")
//Returns: -1

version.Compare(): Compares two normalizated version number strings, for a particular relationship

version.Compare("1.0-dev", "1.0", "<")
//Returns: true

version.Compare("1.0rc1", "1.0", ">=")
//Returns: false

version.Compare("1.0", "1.0b1", "ge")
//Returns: true

version.ConstrainGroup.Match(): Match a given version againts a group of constrains, read about constraint string format at Composer documentation

c := version.NewConstrainGroupFromString(">2.0,<=3.0")
c.Match("2.5.0beta")
//Returns: true

c := version.NewConstrainGroupFromString("~1.2.3")
c.Match("1.2.3.5")
//Returns: true

version.Sort(): Sorts a string slice of version number strings using version.CompareSimple()

version.Sort([]string{"1.10-dev", "1.0rc1", "1.0", "1.0-dev"})
//Returns []string{"1.0-dev", "1.0rc1", "1.0", "1.10-dev"}

License

MIT, see LICENSE