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74 lines
1.5 KiB
74 lines
1.5 KiB
package utils
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import (
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"github.com/jinzhu/copier"
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"github.com/pkg/errors"
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"runtime"
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"strconv"
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"strings"
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)
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// copy a by b b->a
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func CopyStructFields(a interface{}, b interface{}, fields ...string) (err error) {
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return copier.Copy(a, b)
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}
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func Wrap(err error, message string) error {
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return errors.Wrap(err, "==> "+printCallerNameAndLine()+message)
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}
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func WithMessage(err error, message string) error {
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return errors.WithMessage(err, "==> "+printCallerNameAndLine()+message)
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}
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func printCallerNameAndLine() string {
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pc, _, line, _ := runtime.Caller(2)
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return runtime.FuncForPC(pc).Name() + "()@" + strconv.Itoa(line) + ": "
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}
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func GetSelfFuncName() string {
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pc, _, _, _ := runtime.Caller(1)
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return cleanUpFuncName(runtime.FuncForPC(pc).Name())
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}
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func cleanUpFuncName(funcName string) string {
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end := strings.LastIndex(funcName, ".")
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if end == -1 {
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return ""
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}
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return funcName[end+1:]
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}
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func Intersect(slice1, slice2 []uint32) []uint32 {
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m := make(map[uint32]bool)
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n := make([]uint32, 0)
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for _, v := range slice1 {
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m[v] = true
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}
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for _, v := range slice2 {
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flag, _ := m[v]
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if flag {
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n = append(n, v)
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}
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}
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return n
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}
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func Difference(slice1, slice2 []uint32) []uint32 {
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m := make(map[uint32]bool)
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n := make([]uint32, 0)
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inter := Intersect(slice1, slice2)
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for _, v := range inter {
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m[v] = true
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}
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for _, v := range slice1 {
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if !m[v] {
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n = append(n, v)
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}
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}
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for _, v := range slice2 {
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if !m[v] {
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n = append(n, v)
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}
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}
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return n
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}
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