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utils.go
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utils.go
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package utils
import (
"os"
"reflect"
"strings"
"syscall"
)
func MergeEnv(old, new map[string]string) map[string]string {
for k, v := range new {
old[k] = v
}
return old
}
func EnvToMap(envv []string) map[string]string {
env := make(map[string]string)
for _, e := range envv {
kv := strings.SplitN(e, "=", 2)
env[kv[0]] = kv[1]
}
return env
}
func OsEnvToMap() map[string]string {
return EnvToMap(os.Environ())
}
func EnvMapToOsEnv(env map[string]string) []string {
envv := make([]string, len(env))
i := 0
for k, v := range env {
envv[i] = k + "=" + v
i++
}
return envv
}
func MapCast(m map[string]string) map[string]interface{} {
mI := make(map[string]interface{})
for k, v := range m {
mI[k] = v
}
return mI
}
func PgidSysProcAttr(attrOrig *syscall.SysProcAttr) *syscall.SysProcAttr {
var attr *syscall.SysProcAttr
if attrOrig != nil {
attr = attrOrig
} else {
attr = &syscall.SysProcAttr{}
}
val := reflect.ValueOf(attr).Elem()
valSetpgid := val.FieldByName("Setpgid")
if valSetpgid == (reflect.Value{}) || valSetpgid.Kind() != reflect.Bool {
return attrOrig
}
valSetpgid.SetBool(true)
return attr
}
func HasPgidSysProcAttr(attr *syscall.SysProcAttr) bool {
if attr == nil {
return false
}
val := reflect.ValueOf(attr).Elem()
valSetpgid := val.FieldByName("Setpgid")
return valSetpgid != (reflect.Value{}) && valSetpgid.Kind() == reflect.Bool && valSetpgid.Bool()
}