mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-10-01 01:36:09 -04:00
90ed470178
* add custom version type * extend functionality * adapt to requested changes * move to own package * remove duplicate tests, rename package * not handle err
106 lines
2.7 KiB
Go
106 lines
2.7 KiB
Go
/*
|
|
Copyright (c) Edgeless Systems GmbH
|
|
|
|
SPDX-License-Identifier: AGPL-3.0-only
|
|
*/
|
|
|
|
/*
|
|
Package semver provides functionality to parse and process semantic versions, as they are used in multiple components of Constellation.
|
|
*/
|
|
package semver
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"strings"
|
|
|
|
"github.com/edgelesssys/constellation/v2/internal/constants"
|
|
"golang.org/x/mod/semver"
|
|
)
|
|
|
|
// Semver represents a semantic version.
|
|
type Semver struct {
|
|
Major int
|
|
Minor int
|
|
Patch int
|
|
}
|
|
|
|
// NewSemver returns a Version from a string.
|
|
func NewSemver(version string) (Semver, error) {
|
|
// ensure that semver has "v" prefix
|
|
if !strings.HasPrefix(version, "v") {
|
|
version = "v" + version
|
|
}
|
|
|
|
if !semver.IsValid(version) {
|
|
return Semver{}, fmt.Errorf("invalid semver: %s", version)
|
|
}
|
|
|
|
version = semver.Canonical(version)
|
|
|
|
var major, minor, patch int
|
|
_, err := fmt.Sscanf(version, "v%d.%d.%d", &major, &minor, &patch)
|
|
if err != nil {
|
|
return Semver{}, fmt.Errorf("parsing semver parts: %w", err)
|
|
}
|
|
|
|
return Semver{
|
|
Major: major,
|
|
Minor: minor,
|
|
Patch: patch,
|
|
}, nil
|
|
}
|
|
|
|
// String returns the string representation of the version.
|
|
func (v Semver) String() string {
|
|
return fmt.Sprintf("v%d.%d.%d", v.Major, v.Minor, v.Patch)
|
|
}
|
|
|
|
// Compare compares two versions. It relies on the semver.Compare function internally.
|
|
func (v Semver) Compare(other Semver) int {
|
|
return semver.Compare(v.String(), other.String())
|
|
}
|
|
|
|
// IsUpgradeTo returns if a version is an upgrade to another version.
|
|
// It checks if the version of v is greater than the version of other and allows a drift of at most one minor version.
|
|
func (v Semver) IsUpgradeTo(other Semver) bool {
|
|
return v.Compare(other) > 0 && v.Major == other.Major && v.Minor-other.Minor <= 1
|
|
}
|
|
|
|
// CompatibleWithBinary returns if a version is compatible version of the current built binary.
|
|
// It checks if the version of the binary is equal or greater than the current version and allows a drift of at most one minor version.
|
|
func (v Semver) CompatibleWithBinary() bool {
|
|
binaryVersion, err := NewSemver(constants.VersionInfo)
|
|
if err != nil {
|
|
return false
|
|
}
|
|
|
|
return v.Compare(binaryVersion) == 0 || binaryVersion.IsUpgradeTo(v)
|
|
}
|
|
|
|
// NextMinor returns the next minor version in the format "vMAJOR.MINOR".
|
|
func (v Semver) NextMinor() string {
|
|
return fmt.Sprintf("v%d.%d", v.Major, v.Minor+1)
|
|
}
|
|
|
|
// MarshalJSON implements the json.Marshaler interface.
|
|
func (v Semver) MarshalJSON() ([]byte, error) {
|
|
return []byte(fmt.Sprintf(`"%s"`, v.String())), nil
|
|
}
|
|
|
|
// UnmarshalJSON implements the json.Unmarshaler interface.
|
|
func (v *Semver) UnmarshalJSON(data []byte) error {
|
|
var s string
|
|
if err := json.Unmarshal(data, &s); err != nil {
|
|
return err
|
|
}
|
|
|
|
version, err := NewSemver(s)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
*v = version
|
|
return nil
|
|
}
|