go-version [](https://travis-ci.org/mcuadros/go-version) [](http://godoc.org/github.com/mcuadros/go-version) ============================== Version normalizer and comparison library for go, heavy based on PHP version_compare function and Version comparsion libs from [Composer](https://github.com/composer/composer) PHP project Installation ------------ The recommended way to install go-version ``` go get github.com/mcuadros/go-version ``` Examples -------- How import the package ```go import ( "github.com/mcuadros/go-version" ) ``` `version.Normalize()`: Normalizes a version string to be able to perform comparisons on it ```go version.Normalize("10.4.13-b") //Returns: 10.4.13.0-beta ``` `version.CompareSimple()`: Compares two normalizated version number strings ```go 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 ```go version.Compare("1.0-dev", "1.0", "<") //Returns: true version.Compare("1.0rc1", "1.0", ">=") //Returns: false version.Compare("2.3.4", "v3.1.2", "<") //Returns: true ``` `version.ConstrainGroup.Match()`: Match a given version againts a group of constrains, read about constraint string format at [Composer documentation](http://getcomposer.org/doc/01-basic-usage.md#package-versions) ```go 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() ```go 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](LICENSE)