138 lines
3.2 KiB
Go
138 lines
3.2 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
|
|
// license agreements. See the NOTICE file distributed with
|
|
// this work for additional information regarding copyright
|
|
// ownership. Elasticsearch B.V. licenses this file to you 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.
|
|
|
|
package common
|
|
|
|
import (
|
|
"fmt"
|
|
"strconv"
|
|
"strings"
|
|
)
|
|
|
|
type Version struct {
|
|
version string
|
|
Major int
|
|
Minor int
|
|
Bugfix int
|
|
Meta string
|
|
}
|
|
|
|
// NewVersion expects a string in the format:
|
|
// major.minor.bugfix(-meta)
|
|
func NewVersion(version string) (*Version, error) {
|
|
v := Version{
|
|
version: version,
|
|
}
|
|
|
|
// Check for meta info
|
|
if strings.Contains(version, "-") {
|
|
tmp := strings.Split(version, "-")
|
|
version = tmp[0]
|
|
v.Meta = tmp[1]
|
|
}
|
|
|
|
versions := strings.Split(version, ".")
|
|
if len(versions) != 3 {
|
|
return nil, fmt.Errorf("Passed version is not semver: %s", version)
|
|
}
|
|
|
|
var err error
|
|
v.Major, err = strconv.Atoi(versions[0])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Could not convert major to integer: %s", versions[0])
|
|
}
|
|
|
|
v.Minor, err = strconv.Atoi(versions[1])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Could not convert minor to integer: %s", versions[1])
|
|
}
|
|
|
|
v.Bugfix, err = strconv.Atoi(versions[2])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Could not convert bugfix to integer: %s", versions[2])
|
|
}
|
|
|
|
return &v, nil
|
|
}
|
|
|
|
func (v *Version) IsMajor(major int) bool {
|
|
return major == v.Major
|
|
}
|
|
|
|
// LessThan returns true if v is strictly smaller than v1. When comparing, the major,
|
|
// minor, bugfix and pre-release numbers are compared in order.
|
|
func (v *Version) LessThanOrEqual(withMeta bool, v1 *Version) bool {
|
|
if withMeta && v.version == v1.version {
|
|
return true
|
|
}
|
|
if v.Major < v1.Major {
|
|
return true
|
|
}
|
|
if v.Major == v1.Major {
|
|
if v.Minor < v1.Minor {
|
|
return true
|
|
}
|
|
if v.Minor == v1.Minor {
|
|
if v.Bugfix < v1.Bugfix {
|
|
return true
|
|
}
|
|
if v.Bugfix == v1.Bugfix {
|
|
if withMeta {
|
|
return v.metaIsLessThanOrEqual(v1)
|
|
} else {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// LessThan returns true if v is strictly smaller than v1. When comparing, the major,
|
|
// minor and bugfix numbers are compared in order. The meta part is not taken into account.
|
|
func (v *Version) LessThan(v1 *Version) bool {
|
|
if v.Major < v1.Major {
|
|
return true
|
|
} else if v.Major == v1.Major {
|
|
if v.Minor < v1.Minor {
|
|
return true
|
|
} else if v.Minor == v1.Minor {
|
|
if v.Bugfix < v1.Bugfix {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (v *Version) String() string {
|
|
return v.version
|
|
}
|
|
|
|
func (v *Version) metaIsLessThanOrEqual(v1 *Version) bool {
|
|
if v.Meta == "" && v1.Meta == "" {
|
|
return true
|
|
}
|
|
if v.Meta == "" {
|
|
return false
|
|
}
|
|
if v1.Meta == "" {
|
|
return true
|
|
}
|
|
return v.Meta <= v1.Meta
|
|
}
|