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This allows for runsc to be able to use DriverVersion without having to depend on the entirety of nvproxy. PiperOrigin-RevId: 733912696
97 lines
2.7 KiB
Go
97 lines
2.7 KiB
Go
// Copyright 2025 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package nvconf
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import (
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"fmt"
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"strconv"
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"strings"
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)
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// DriverVersion represents a NVIDIA driver version patch release.
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//
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// +stateify savable
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type DriverVersion struct {
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major int
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minor int
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patch int
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}
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// NewDriverVersion returns a new driver version.
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func NewDriverVersion(major, minor, patch int) DriverVersion {
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return DriverVersion{major, minor, patch}
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}
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// DriverVersionFrom returns a DriverVersion from a string.
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func DriverVersionFrom(version string) (DriverVersion, error) {
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parts := strings.Split(version, ".")
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if len(parts) != 3 {
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return DriverVersion{}, fmt.Errorf("invalid format of version string %q", version)
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}
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var (
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res DriverVersion
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err error
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)
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res.major, err = strconv.Atoi(parts[0])
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if err != nil {
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return DriverVersion{}, fmt.Errorf("invalid format for major version %q: %v", version, err)
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}
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res.minor, err = strconv.Atoi(parts[1])
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if err != nil {
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return DriverVersion{}, fmt.Errorf("invalid format for minor version %q: %v", version, err)
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}
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res.patch, err = strconv.Atoi(parts[2])
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if err != nil {
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return DriverVersion{}, fmt.Errorf("invalid format for patch version %q: %v", version, err)
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}
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return res, nil
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}
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func (v DriverVersion) String() string {
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return fmt.Sprintf("%02d.%02d.%02d", v.major, v.minor, v.patch)
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}
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// Equals returns true if the two driver versions are equal.
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func (v DriverVersion) Equals(other DriverVersion) bool {
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return v.major == other.major && v.minor == other.minor && v.patch == other.patch
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}
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// IsGreaterThan returns true if v is greater than other.
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// isGreaterThan returns true if v is more recent than other, assuming v and other are on the same
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// dev branch.
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func (v DriverVersion) IsGreaterThan(other DriverVersion) bool {
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switch {
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case v.major > other.major:
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return true
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case other.major > v.major:
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return false
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case v.minor > other.minor:
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return true
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case other.minor > v.minor:
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return false
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case v.patch > other.patch:
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return true
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case other.patch > v.patch:
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return false
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default:
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return true
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}
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}
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// Major returns the major version number.
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func (v DriverVersion) Major() int {
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return v.major
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}
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