81 lines
1.3 KiB
Go
81 lines
1.3 KiB
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"fmt"
|
||
|
|
"io"
|
||
|
|
"os"
|
||
|
|
"runtime/debug"
|
||
|
|
)
|
||
|
|
|
||
|
|
var (
|
||
|
|
Name string = ""
|
||
|
|
Version string = ""
|
||
|
|
Commit string = ""
|
||
|
|
BuildTime string = ""
|
||
|
|
OS string = ""
|
||
|
|
Arch string = ""
|
||
|
|
ShowDeps bool = false
|
||
|
|
|
||
|
|
dependencies = []string{}
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
Print()
|
||
|
|
}
|
||
|
|
|
||
|
|
func Fprint(w io.Writer) {
|
||
|
|
if OS == "" || Arch == "" || ShowDeps {
|
||
|
|
fillDebugInfo()
|
||
|
|
}
|
||
|
|
|
||
|
|
if Name == "" {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
if Version != "" {
|
||
|
|
fmt.Fprintf(w, "%s %s (built for %s/%s at %s)\n", Name, Version, OS, Arch, BuildTime)
|
||
|
|
} else if Commit != "" {
|
||
|
|
fmt.Fprintf(w, "%s (commit %s) (built at %s)\n", Name, Commit, BuildTime)
|
||
|
|
}
|
||
|
|
|
||
|
|
if ShowDeps {
|
||
|
|
fmt.Println("\ndependencies:")
|
||
|
|
for _, dep := range dependencies {
|
||
|
|
fmt.Fprintf(w, " %s\n", dep)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func Print() {
|
||
|
|
Fprint(os.Stdout)
|
||
|
|
}
|
||
|
|
|
||
|
|
func overwriteValueIfEmpty(value *string, newValue string) {
|
||
|
|
if *value == "" {
|
||
|
|
*value = newValue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
func fillDebugInfo() {
|
||
|
|
info, ok := debug.ReadBuildInfo()
|
||
|
|
if !ok {
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, setting := range info.Settings {
|
||
|
|
switch setting.Key {
|
||
|
|
case "GOOS":
|
||
|
|
overwriteValueIfEmpty(&OS, setting.Value)
|
||
|
|
case "GOARCH":
|
||
|
|
overwriteValueIfEmpty(&Arch, setting.Value)
|
||
|
|
case "vcs.revision":
|
||
|
|
overwriteValueIfEmpty(&Commit, setting.Value)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for _, dep := range info.Deps {
|
||
|
|
str := fmt.Sprintf("%s %s", dep.Path, dep.Version)
|
||
|
|
dependencies = append(dependencies, str)
|
||
|
|
}
|
||
|
|
}
|