gosemver

A Semantic Versioning library for the Go programming language.

Usage

import "github.com/myfreeweb/gosemver"

Parsing:

gosemver.ParseVersion("v0.1.0-alpha+build001") // gosemver.Version{"v", 0, 1, 0, "alpha", "build001"}, nil
gosemver.ParseVersion("AAAAAAA") // gosemver.Version{"", 0, 0, 0, "", ""}, error

gosemver.ParseVersions([]string{"0.1.0", "0.2.0"}) // []gosemver.Version{{"", 0, 1, 0, "", ""}, {"", 0, 2, 0, "", ""},}, nil

Sorting:

import "sort"

vers := []gosemver.Version{
  gosemver.Version{"v", 1, 0, 0, "", ""},
  gosemver.Version{"v", 0, 1, 0, "", ""},
}

sort.Sort(gosemver.Versions(vers))

Output:

ver := gosemver.Version{"v", 2, 3, 1, "alpha", "build.001"}
ver.String() // "v2.3.1-alpha+build.001"

Constraints:

ver := gosemver.Version{"", 3, 0, 3, "", ""}
// returns result, error:
ver.Satisfies("*") // true, nil
ver.Satisfies("== 3.0.3") // true, nil
ver.Satisfies(">= 3.0.1") // true, nil
ver.Satisfies(">= 3.0") // true, nil
ver.Satisfies("> 3.0.0") // true, nil
ver.Satisfies("~> 3.0.4") // false, nil
ver.Satisfies("~> 3.0.1") // true, nil
ver.Satisfies("~> 3.0") // true, nil
ver.Satisfies("~> 2.9") // false, nil
ver.Satisfies("^2.9") // false, nil
// ^ and ~> are the same operator

vers := []gosemver.Version{
  gosemver.Version{"", 1, 2, 3, "", ""},
  gosemver.Version{"", 0, 1, 5, "", ""},
  gosemver.Version{"", 1, 0, 0, "", ""},
}

gosemver.FindAll(vers, ">= 1.0.0") // []gosemver.Version{gosemver.Version{"", 1, 2, 3, "", ""}, gosemver.Version{"", 1, 0, 0, "", ""},}
gosemver.FindMax(vers, ">= 1.0.0") // gosemver.Version{"", 1, 2, 3, "", ""}, nil
gosemver.FindMax(vers, ">= 999.0.0") // gosemver.Version{"", 0, 0, 0, "", ""}, error

TODO

• more constraints (like node semver)
• executable (like, ls | gosemver sort, gosemver inc patch 1.1.0)

License

Copyright 2014 Greg V floatboth@me.com

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.