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package version
import (
"fmt"
"runtime"
"strings"
"golang.org/x/text/cases"
"golang.org/x/text/language"
"github.com/canonical/lxd/shared/osarch"
)
// UserAgent contains a string suitable as a user-agent.
var UserAgent = getUserAgent()
var userAgentStorageBackends []string
var userAgentFeatures []string
func getUserAgent() string {
archID, err := osarch.ArchitectureId(runtime.GOARCH)
if err != nil {
panic(err)
}
arch, err := osarch.ArchitectureName(archID)
if err != nil {
panic(err)
}
osTokens := []string{cases.Title(language.English).String(runtime.GOOS), arch}
osTokens = append(osTokens, getPlatformVersionStrings()...)
// Initial version string
agent := fmt.Sprintf("LXD %s", Version)
// OS information
agent = fmt.Sprintf("%s (%s)", agent, strings.Join(osTokens, "; "))
// Storage information
if len(userAgentStorageBackends) > 0 {
agent = fmt.Sprintf("%s (%s)", agent, strings.Join(userAgentStorageBackends, "; "))
}
// Feature information
if len(userAgentFeatures) > 0 {
agent = fmt.Sprintf("%s (%s)", agent, strings.Join(userAgentFeatures, "; "))
}
return agent
}
// UserAgentStorageBackends updates the list of storage backends to include in the user-agent.
func UserAgentStorageBackends(backends []string) {
userAgentStorageBackends = backends
UserAgent = getUserAgent()
}
// UserAgentFeatures updates the list of advertised features.
func UserAgentFeatures(features []string) {
userAgentFeatures = features
UserAgent = getUserAgent()
}
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