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grafana/pkg/util/strings.go

145 lines
2.9 KiB

package util
import (
"encoding/json"
"fmt"
"math"
"strings"
"time"
"unicode"
)
pkg/util/*: Add missing function comments. See, $ gometalinter --vendor --deadline 10m --disable-all --enable=golint ./... encoding.go:15:1:warning: comment on exported function GetRandomString should be of the form "GetRandomString ..." (golint) encoding.go:30:1:warning: exported function EncodePassword should have comment or be unexported (golint) encoding.go:35:1:warning: comment on exported function EncodeMd5 should be of the form "EncodeMd5 ..." (golint) encoding.go:42:1:warning: comment on exported function PBKDF2 should be of the form "PBKDF2 ..." (golint) encoding.go:80:1:warning: exported function GetBasicAuthHeader should have comment or be unexported (golint) encoding.go:85:1:warning: exported function DecodeBasicAuthHeader should have comment or be unexported (golint) encoding.go:105:1:warning: exported function RandomHex should have comment or be unexported (golint) encryption.go:14:1:warning: exported function Decrypt should have comment or be unexported (golint) encryption.go:39:1:warning: exported function Encrypt should have comment or be unexported (golint) ip.go:7:1:warning: exported function SplitIpPort should have comment or be unexported (golint) json.go:3:6:warning: exported type DynMap should have comment or be unexported (golint) md5.go:22:1:warning: comment on exported function Md5SumString should be of the form "Md5SumString ..." (golint) strings.go:10:1:warning: exported function StringsFallback2 should have comment or be unexported (golint) strings.go:14:1:warning: exported function StringsFallback3 should have comment or be unexported (golint) strings.go:27:1:warning: exported function SplitString should have comment or be unexported (golint) strings.go:35:1:warning: exported function GetAgeString should have comment or be unexported (golint) url.go:8:6:warning: exported type UrlQueryReader should have comment or be unexported (golint) url.go:12:1:warning: exported function NewUrlQueryReader should have comment or be unexported (golint) url.go:23:1:warning: exported method UrlQueryReader.Get should have comment or be unexported (golint) url.go:32:1:warning: exported function JoinUrlFragments should have comment or be unexported (golint) validation.go:16:1:warning: exported function IsEmail should have comment or be unexported (golint)
6 years ago
// StringsFallback2 returns the first of two not empty strings.
func StringsFallback2(val1 string, val2 string) string {
return stringsFallback(val1, val2)
}
pkg/util/*: Add missing function comments. See, $ gometalinter --vendor --deadline 10m --disable-all --enable=golint ./... encoding.go:15:1:warning: comment on exported function GetRandomString should be of the form "GetRandomString ..." (golint) encoding.go:30:1:warning: exported function EncodePassword should have comment or be unexported (golint) encoding.go:35:1:warning: comment on exported function EncodeMd5 should be of the form "EncodeMd5 ..." (golint) encoding.go:42:1:warning: comment on exported function PBKDF2 should be of the form "PBKDF2 ..." (golint) encoding.go:80:1:warning: exported function GetBasicAuthHeader should have comment or be unexported (golint) encoding.go:85:1:warning: exported function DecodeBasicAuthHeader should have comment or be unexported (golint) encoding.go:105:1:warning: exported function RandomHex should have comment or be unexported (golint) encryption.go:14:1:warning: exported function Decrypt should have comment or be unexported (golint) encryption.go:39:1:warning: exported function Encrypt should have comment or be unexported (golint) ip.go:7:1:warning: exported function SplitIpPort should have comment or be unexported (golint) json.go:3:6:warning: exported type DynMap should have comment or be unexported (golint) md5.go:22:1:warning: comment on exported function Md5SumString should be of the form "Md5SumString ..." (golint) strings.go:10:1:warning: exported function StringsFallback2 should have comment or be unexported (golint) strings.go:14:1:warning: exported function StringsFallback3 should have comment or be unexported (golint) strings.go:27:1:warning: exported function SplitString should have comment or be unexported (golint) strings.go:35:1:warning: exported function GetAgeString should have comment or be unexported (golint) url.go:8:6:warning: exported type UrlQueryReader should have comment or be unexported (golint) url.go:12:1:warning: exported function NewUrlQueryReader should have comment or be unexported (golint) url.go:23:1:warning: exported method UrlQueryReader.Get should have comment or be unexported (golint) url.go:32:1:warning: exported function JoinUrlFragments should have comment or be unexported (golint) validation.go:16:1:warning: exported function IsEmail should have comment or be unexported (golint)
6 years ago
// StringsFallback3 returns the first of three not empty strings.
func StringsFallback3(val1 string, val2 string, val3 string) string {
return stringsFallback(val1, val2, val3)
}
func stringsFallback(vals ...string) string {
for _, v := range vals {
if v != "" {
return v
}
}
return ""
}
pkg/util/*: Add missing function comments. See, $ gometalinter --vendor --deadline 10m --disable-all --enable=golint ./... encoding.go:15:1:warning: comment on exported function GetRandomString should be of the form "GetRandomString ..." (golint) encoding.go:30:1:warning: exported function EncodePassword should have comment or be unexported (golint) encoding.go:35:1:warning: comment on exported function EncodeMd5 should be of the form "EncodeMd5 ..." (golint) encoding.go:42:1:warning: comment on exported function PBKDF2 should be of the form "PBKDF2 ..." (golint) encoding.go:80:1:warning: exported function GetBasicAuthHeader should have comment or be unexported (golint) encoding.go:85:1:warning: exported function DecodeBasicAuthHeader should have comment or be unexported (golint) encoding.go:105:1:warning: exported function RandomHex should have comment or be unexported (golint) encryption.go:14:1:warning: exported function Decrypt should have comment or be unexported (golint) encryption.go:39:1:warning: exported function Encrypt should have comment or be unexported (golint) ip.go:7:1:warning: exported function SplitIpPort should have comment or be unexported (golint) json.go:3:6:warning: exported type DynMap should have comment or be unexported (golint) md5.go:22:1:warning: comment on exported function Md5SumString should be of the form "Md5SumString ..." (golint) strings.go:10:1:warning: exported function StringsFallback2 should have comment or be unexported (golint) strings.go:14:1:warning: exported function StringsFallback3 should have comment or be unexported (golint) strings.go:27:1:warning: exported function SplitString should have comment or be unexported (golint) strings.go:35:1:warning: exported function GetAgeString should have comment or be unexported (golint) url.go:8:6:warning: exported type UrlQueryReader should have comment or be unexported (golint) url.go:12:1:warning: exported function NewUrlQueryReader should have comment or be unexported (golint) url.go:23:1:warning: exported method UrlQueryReader.Get should have comment or be unexported (golint) url.go:32:1:warning: exported function JoinUrlFragments should have comment or be unexported (golint) validation.go:16:1:warning: exported function IsEmail should have comment or be unexported (golint)
6 years ago
// SplitString splits a string by commas or empty spaces.
func SplitString(str string) []string {
if len(str) == 0 {
return []string{}
}
// JSON list syntax support
if strings.Index(strings.TrimSpace(str), "[") == 0 {
var res []string
err := json.Unmarshal([]byte(str), &res)
if err != nil {
return []string{}
}
return res
}
return strings.Fields(strings.ReplaceAll(str, ",", " "))
}
pkg/util/*: Add missing function comments. See, $ gometalinter --vendor --deadline 10m --disable-all --enable=golint ./... encoding.go:15:1:warning: comment on exported function GetRandomString should be of the form "GetRandomString ..." (golint) encoding.go:30:1:warning: exported function EncodePassword should have comment or be unexported (golint) encoding.go:35:1:warning: comment on exported function EncodeMd5 should be of the form "EncodeMd5 ..." (golint) encoding.go:42:1:warning: comment on exported function PBKDF2 should be of the form "PBKDF2 ..." (golint) encoding.go:80:1:warning: exported function GetBasicAuthHeader should have comment or be unexported (golint) encoding.go:85:1:warning: exported function DecodeBasicAuthHeader should have comment or be unexported (golint) encoding.go:105:1:warning: exported function RandomHex should have comment or be unexported (golint) encryption.go:14:1:warning: exported function Decrypt should have comment or be unexported (golint) encryption.go:39:1:warning: exported function Encrypt should have comment or be unexported (golint) ip.go:7:1:warning: exported function SplitIpPort should have comment or be unexported (golint) json.go:3:6:warning: exported type DynMap should have comment or be unexported (golint) md5.go:22:1:warning: comment on exported function Md5SumString should be of the form "Md5SumString ..." (golint) strings.go:10:1:warning: exported function StringsFallback2 should have comment or be unexported (golint) strings.go:14:1:warning: exported function StringsFallback3 should have comment or be unexported (golint) strings.go:27:1:warning: exported function SplitString should have comment or be unexported (golint) strings.go:35:1:warning: exported function GetAgeString should have comment or be unexported (golint) url.go:8:6:warning: exported type UrlQueryReader should have comment or be unexported (golint) url.go:12:1:warning: exported function NewUrlQueryReader should have comment or be unexported (golint) url.go:23:1:warning: exported method UrlQueryReader.Get should have comment or be unexported (golint) url.go:32:1:warning: exported function JoinUrlFragments should have comment or be unexported (golint) validation.go:16:1:warning: exported function IsEmail should have comment or be unexported (golint)
6 years ago
// GetAgeString returns a string representing certain time from years to minutes.
func GetAgeString(t time.Time) string {
if t.IsZero() {
return "?"
}
sinceNow := time.Since(t)
minutes := sinceNow.Minutes()
years := int(math.Floor(minutes / 525600))
months := int(math.Floor(minutes / 43800))
days := int(math.Floor(minutes / 1440))
hours := int(math.Floor(minutes / 60))
var amount string
if years > 0 {
if years == 1 {
amount = "year"
} else {
amount = "years"
}
return fmt.Sprintf("%d %s", years, amount)
}
if months > 0 {
if months == 1 {
amount = "month"
} else {
amount = "months"
}
return fmt.Sprintf("%d %s", months, amount)
}
if days > 0 {
if days == 1 {
amount = "day"
} else {
amount = "days"
}
return fmt.Sprintf("%d %s", days, amount)
}
if hours > 0 {
if hours == 1 {
amount = "hour"
} else {
amount = "hours"
}
return fmt.Sprintf("%d %s", hours, amount)
}
if int(minutes) > 0 {
if int(minutes) == 1 {
amount = "minute"
} else {
amount = "minutes"
}
return fmt.Sprintf("%d %s", int(minutes), amount)
}
return "< 1 minute"
}
// ToCamelCase changes kebab case, snake case or mixed strings to camel case. See unit test for examples.
func ToCamelCase(str string) string {
var finalParts []string
parts := strings.Split(str, "_")
for _, part := range parts {
finalParts = append(finalParts, strings.Split(part, "-")...)
}
for index, part := range finalParts[1:] {
finalParts[index+1] = strings.Title(part)
}
return strings.Join(finalParts, "")
}
func Capitalize(s string) string {
if len(s) == 0 {
return s
}
r := []rune(s)
r[0] = unicode.ToUpper(r[0])
return string(r)
}
func ByteCountSI(b int64) string {
const unit = 1000
if b < unit {
return fmt.Sprintf("%d B", b)
}
div, exp := int64(unit), 0
for n := b / unit; n >= unit; n /= unit {
div *= unit
exp++
}
return fmt.Sprintf("%.1f %cB",
float64(b)/float64(div), "kMGTPE"[exp])
}