Files
Ayush RanjanandgVisor bot 138e98fb7d nvproxy: Refactor DriverVersion out to nvconf package.
This allows for runsc to be able to use DriverVersion without having to depend
on the entirety of nvproxy.

PiperOrigin-RevId: 733912696
2025-03-05 16:43:03 -08:00

97 lines
2.7 KiB
Go

// Copyright 2025 The gVisor Authors.
//
// 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 nvconf
import (
"fmt"
"strconv"
"strings"
)
// DriverVersion represents a NVIDIA driver version patch release.
//
// +stateify savable
type DriverVersion struct {
major int
minor int
patch int
}
// NewDriverVersion returns a new driver version.
func NewDriverVersion(major, minor, patch int) DriverVersion {
return DriverVersion{major, minor, patch}
}
// DriverVersionFrom returns a DriverVersion from a string.
func DriverVersionFrom(version string) (DriverVersion, error) {
parts := strings.Split(version, ".")
if len(parts) != 3 {
return DriverVersion{}, fmt.Errorf("invalid format of version string %q", version)
}
var (
res DriverVersion
err error
)
res.major, err = strconv.Atoi(parts[0])
if err != nil {
return DriverVersion{}, fmt.Errorf("invalid format for major version %q: %v", version, err)
}
res.minor, err = strconv.Atoi(parts[1])
if err != nil {
return DriverVersion{}, fmt.Errorf("invalid format for minor version %q: %v", version, err)
}
res.patch, err = strconv.Atoi(parts[2])
if err != nil {
return DriverVersion{}, fmt.Errorf("invalid format for patch version %q: %v", version, err)
}
return res, nil
}
func (v DriverVersion) String() string {
return fmt.Sprintf("%02d.%02d.%02d", v.major, v.minor, v.patch)
}
// Equals returns true if the two driver versions are equal.
func (v DriverVersion) Equals(other DriverVersion) bool {
return v.major == other.major && v.minor == other.minor && v.patch == other.patch
}
// IsGreaterThan returns true if v is greater than other.
// isGreaterThan returns true if v is more recent than other, assuming v and other are on the same
// dev branch.
func (v DriverVersion) IsGreaterThan(other DriverVersion) bool {
switch {
case v.major > other.major:
return true
case other.major > v.major:
return false
case v.minor > other.minor:
return true
case other.minor > v.minor:
return false
case v.patch > other.patch:
return true
case other.patch > v.patch:
return false
default:
return true
}
}
// Major returns the major version number.
func (v DriverVersion) Major() int {
return v.major
}