terraform/vendor/github.com/hashicorp/go-version
Kristin Laemmert 664fb5d51e vendor: upgrade go-cty-yaml dependency
Fixes #22223
2019-07-30 12:27:49 -04:00
..
.travis.yml go-mod: update go-version 2018-12-13 18:35:23 +01:00
LICENSE
README.md
constraint.go vendor: upgrade go-cty-yaml dependency 2019-07-30 12:27:49 -04:00
go.mod go-mod: update go-version 2018-12-13 18:35:23 +01:00
version.go vendor: github.com/hashicorp/go-getter@v1.1.0 2019-02-21 08:52:47 +00:00
version_collection.go

README.md

Versioning Library for Go

Build Status

go-version is a library for parsing versions and version constraints, and verifying versions against a set of constraints. go-version can sort a collection of versions properly, handles prerelease/beta versions, can increment versions, etc.

Versions used with go-version must follow SemVer.

Installation and Usage

Package documentation can be found on GoDoc.

Installation can be done with a normal go get:

$ go get github.com/hashicorp/go-version

Version Parsing and Comparison

v1, err := version.NewVersion("1.2")
v2, err := version.NewVersion("1.5+metadata")

// Comparison example. There is also GreaterThan, Equal, and just
// a simple Compare that returns an int allowing easy >=, <=, etc.
if v1.LessThan(v2) {
    fmt.Printf("%s is less than %s", v1, v2)
}

Version Constraints

v1, err := version.NewVersion("1.2")

// Constraints example.
constraints, err := version.NewConstraint(">= 1.0, < 1.4")
if constraints.Check(v1) {
	fmt.Printf("%s satisfies constraints %s", v1, constraints)
}

Version Sorting

versionsRaw := []string{"1.1", "0.7.1", "1.4-beta", "1.4", "2"}
versions := make([]*version.Version, len(versionsRaw))
for i, raw := range versionsRaw {
    v, _ := version.NewVersion(raw)
    versions[i] = v
}

// After this, the versions are properly sorted
sort.Sort(version.Collection(versions))

Issues and Contributing

If you find an issue with this library, please report an issue. If you'd like, we welcome any contributions. Fork this library and submit a pull request.