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// Copyright 2017 Northern.tech AS
//
// 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.
package migrate
import (
"fmt"
"github.com/pkg/errors"
)
type Version struct {
Major uint `bson:"major"`
Minor uint `bson:"minor"`
Patch uint `bson:"patch"`
}
func NewVersion(s string) (*Version, error) {
var maj, min, patch uint
n, err := fmt.Sscanf(s, "%d.%d.%d", &maj, &min, &patch)
if err != nil {
return nil, errors.Wrap(err, "failed to parse Version")
} else if n != 3 {
return nil, errors.New("invalid semver format")
}
return &Version{Major: maj, Minor: min, Patch: patch}, nil
}
func MakeVersion(maj uint, min uint, patch uint) Version {
return Version{Major: maj, Minor: min, Patch: patch}
}
func (v Version) String() string {
return fmt.Sprintf("%d.%d.%d", v.Major, v.Minor, v.Patch)
}
func VersionIsLess(left Version, right Version) bool {
if left.Major < right.Major {
return true
} else if left.Major == right.Major {
if left.Minor < right.Minor {
return true
} else if left.Minor == right.Minor {
if left.Patch < right.Patch {
return true
}
}
}
return false
}
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