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utils.go
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utils.go
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/*
* === This file is part of ALICE O² ===
*
* Copyright 2018-2019 CERN and copyright holders of ALICE O².
* Author: Teo Mrnjavac <teo.mrnjavac@cern.ch>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* In applying this license CERN does not waive the privileges and
* immunities granted to it by virtue of its status as an
* Intergovernmental Organization or submit itself to any jurisdiction.
*/
package utils
import (
"encoding/csv"
"encoding/json"
"fmt"
"io"
"os"
"regexp"
"runtime"
"strings"
"time"
"github.com/AliceO2Group/Control/common/logger"
"github.com/sirupsen/logrus"
"gopkg.in/yaml.v3"
)
func TimeTrack(start time.Time, name string, log *logrus.Entry) {
if log == nil {
log = logger.New(logrus.StandardLogger(),"debug").WithPrefix("debug")
}
elapsed := time.Since(start)
log.Debugf("%s took %s", name, elapsed)
}
func TimeTrackFunction(start time.Time, log *logrus.Entry) {
// Skip this function, and fetch the PC and file for its parent.
pc, _, _, _ := runtime.Caller(1)
// Retrieve a function object this functions parent.
funcObj := runtime.FuncForPC(pc)
// Regex to extract just the function name (and not the module path).
runtimeFunc := regexp.MustCompile(`^.*\.(.*)$`)
name := runtimeFunc.ReplaceAllString(funcObj.Name(), "$1")
TimeTrack(start, name, log)
}
func NewUnixTimestamp() string {
// User for IL direct hook and scheduler.go
return fmt.Sprintf("%f", float64(time.Now().UnixNano())/1e9)
}
func IsDirEmpty(path string) (bool, error) {
dir, err := os.Open(path)
if err != nil {
return false, err
}
defer dir.Close() //Read-only we don't care about the return value
_, err = dir.Readdirnames(1)
if err == io.EOF {
return true, nil
}
return false, err
}
func EnsureTrailingSlash(path *string) {
if !strings.HasSuffix(*path, "/") { //Add trailing '/'
*path += "/"
}
}
// helper func to package strings up nicely for protobuf
func ProtoString(s string) *string { return &s }
func StringSliceContains(s []string, str string) bool {
for _, a := range s {
if a == str {
return true
}
}
return false
}
func readAsCSV(val string) ([]string, error) {
if val == "" {
return []string{}, nil
}
stringReader := strings.NewReader(val)
csvReader := csv.NewReader(stringReader)
return csvReader.Read()
}
func isJson(str string) bool {
var js json.RawMessage
return json.Unmarshal([]byte(str), &js) == nil
}
func ParseExtraVars(extraVars string) (extraVarsMap map[string]string, err error) {
extraVarsMap = make(map[string]string)
if isJson(extraVars) {
extraVarsMapI := make(map[string]interface{})
err = yaml.Unmarshal([]byte(extraVars), &extraVarsMapI)
if err != nil {
err = fmt.Errorf("cannot parse extra-vars as JSON: %w", err)
return
}
for k, v := range extraVarsMapI {
if strVal, ok := v.(string); ok {
extraVarsMap[k] = strVal
continue
}
marshaledValue, marshalErr := json.Marshal(v)
if marshalErr != nil {
continue
}
extraVarsMap[k] = string(marshaledValue)
}
} else {
extraVarsSlice := make([]string, 0)
extraVarsSlice, err = readAsCSV(extraVars)
if err != nil {
err = fmt.Errorf("cannot parse extra-vars as CSV: %w", err)
return
}
for _, entry := range extraVarsSlice {
if len(entry) < 3 { // can't be shorter than a=b
err = fmt.Errorf("invalid variable assignment %s", entry)
return
}
if strings.Count(entry, "=") != 1 {
err = fmt.Errorf("invalid variable assignment %s", entry)
return
}
sanitized := strings.Trim(strings.TrimSpace(entry), "\"'")
entryKV := strings.Split(sanitized, "=")
extraVarsMap[entryKV[0]] = entryKV[1]
}
}
return
}