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Add JSON utility functions, Viper configuration reader, IP utility fu…
…nctions, and file utility functions
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,4 +1,4 @@ | ||
| package utils | ||
| package conf | ||
|
|
||
| import ( | ||
| "github.com/spf13/viper" | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,56 @@ | ||
| package file | ||
|
|
||
| import ( | ||
| "crypto/md5" | ||
| "encoding/hex" | ||
| "io" | ||
| "os" | ||
| "path" | ||
| "path/filepath" | ||
| ) | ||
|
|
||
| func FilExists(filename string) bool { | ||
| _, err := os.Stat(filename) | ||
| return !os.IsNotExist(err) | ||
| } | ||
|
|
||
| func WriteToFile(filePath string, content string, filemode os.FileMode) error { | ||
| if err := os.MkdirAll(filepath.Dir(filePath), os.ModePerm); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if err := os.WriteFile(filePath, []byte(content), filemode); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func FileMD5(filePath string) (string, error) { | ||
| file, err := os.Open(filePath) | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
| defer file.Close() | ||
|
|
||
| hash := md5.New() | ||
| if _, err := io.Copy(hash, file); err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| hashInBytes := hash.Sum(nil) | ||
| md5Hash := hex.EncodeToString(hashInBytes) | ||
|
|
||
| return md5Hash, nil | ||
| } | ||
|
|
||
| func MkdirAllIfNotExists(pathname string, perm os.FileMode) error { | ||
| dir := path.Dir(pathname) | ||
| if _, err := os.Stat(dir); err != nil { | ||
| if os.IsNotExist(err) { | ||
| if err := os.MkdirAll(dir, perm); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package ip | ||
|
|
||
| import ( | ||
| "net" | ||
| ) | ||
|
|
||
| func GetIPv4NetworkIPs() ([]string, error) { | ||
| ips, err := GetNetworkIPs() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| ip4s := make([]string, 0) | ||
| for _, ip := range ips { | ||
| if net.ParseIP(ip).To4() != nil { | ||
| ip4s = append(ip4s, ip) | ||
| } | ||
| } | ||
|
|
||
| return ip4s, nil | ||
| } | ||
|
|
||
| func GetNetworkIPs() ([]string, error) { | ||
| ifaces, err := net.Interfaces() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| ips := make([]string, 0) | ||
| for _, i := range ifaces { | ||
| addrs, err := i.Addrs() | ||
| if err != nil { | ||
| continue | ||
| } | ||
| for _, addr := range addrs { | ||
| switch v := addr.(type) { | ||
| case *net.IPNet: | ||
| ips = append(ips, v.IP.String()) | ||
| case *net.IPAddr: | ||
| ips = append(ips, v.IP.String()) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| return ips, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,12 @@ | ||
| package josn | ||
|
|
||
| import "encoding/json" | ||
|
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| func StructToJson(v interface{}) (string, error) { | ||
| data, err := json.MarshalIndent(v, "", " ") | ||
| if err != nil { | ||
| return "", err | ||
| } | ||
|
|
||
| return string(data), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package parse | ||
|
|
||
| import "strconv" | ||
|
|
||
| func ParseBool(val string, defVal bool) bool { | ||
| _val, err := strconv.ParseBool(val) | ||
| if err != nil { | ||
| return defVal | ||
| } | ||
| return _val | ||
| } | ||
|
|
||
| func ParseInt(val string, defVal int) int { | ||
| _val, err := strconv.Atoi(val) | ||
| if err != nil { | ||
| return defVal | ||
| } | ||
| return _val | ||
| } | ||
|
|
||
| func ParseInt64(val string, defVal int64) int64 { | ||
| _val, err := strconv.ParseInt(val, 10, 64) | ||
| if err != nil { | ||
| return defVal | ||
| } | ||
| return _val | ||
| } | ||
|
|
||
| func ParseFloat64(val string, defVal float64) float64 { | ||
| _val, err := strconv.ParseFloat(val, 64) | ||
| if err != nil { | ||
| return defVal | ||
| } | ||
| return _val | ||
| } | ||
|
|
||
| func ParseUint(val string, defVal uint) uint { | ||
| _val, err := strconv.ParseUint(val, 10, 0) | ||
| if err != nil { | ||
| return defVal | ||
| } | ||
| return uint(_val) | ||
| } |
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