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|
package types
import (
"flag"
"fmt"
"runtime/debug"
"strings"
)
var (
// set using the '-X github.com/containers/gvisor-tap-vsock/pkg/types.gitVersion' linker flag
gitVersion = ""
// set through .gitattributes when `git archive` is used
// see https://icinga.com/blog/2022/05/25/embedding-git-commit-information-in-go-binaries/
gitArchiveVersion = "v0.8.1"
)
type version struct {
binaryName string
showVersion bool
}
func NewVersion(binaryName string) *version { //nolint:revive
return &version{
binaryName: binaryName,
}
}
func (ver *version) String() string {
return fmt.Sprintf("%s version %s", ver.binaryName, moduleVersion())
}
func (ver *version) AddFlag() {
flag.BoolVar(&ver.showVersion, "version", false, "Print version information")
}
func (ver *version) ShowVersion() bool {
return ver.showVersion
}
func moduleVersion() string {
switch {
// This will be substituted when building from a GitHub tarball
case !strings.HasPrefix(gitArchiveVersion, "$Format:"):
return gitArchiveVersion
// This will be set when building from git using make
case gitVersion != "":
if !strings.HasPrefix(gitVersion, "v") {
// if an annotated tag is found, the git describe string will be similar to:
// v0.7.2-15-g2c897d90
// When using shallow clones, the commit being built
// may not have an annotated tag in its history,
// `git describe` will only be the abbreviated commit hash in this case:
// 2c897d90
return fmt.Sprintf("git%s", gitVersion)
}
return gitVersion
// moduleVersionFromBuildInfo() will be set when using `go install`
default:
return moduleVersionFromBuildInfo()
}
}
func moduleVersionFromBuildInfo() string {
info, ok := debug.ReadBuildInfo()
if !ok {
return ""
}
if info.Main.Version == "(devel)" {
return ""
}
return info.Main.Version
}
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