go read/write csv

csv.go

import (
	"encoding/csv"
	"log"
	"os"
)

func readCsvFile(filePath string) [][]string {
	f, err := os.Open(filePath)
	if err != nil {
		log.Fatal("Unable to read input file "+filePath, err)
	}
	defer f.Close()

	csvReader := csv.NewReader(f)
	records, err := csvReader.ReadAll()
	if err != nil {
		log.Fatal("Unable to parse file as CSV for "+filePath, err)
	}

	return records
}

func saveCsvFile(filePath string, record [][]string) error {
	f, err := os.OpenFile(filePath, os.O_RDWR|os.O_CREATE, 0755)
	if err != nil {
		log.Fatal("Fail to create" + filePath)
	}
	defer f.Close()

	csvWriter := csv.NewWriter(f)
	defer csvWriter.Flush()
	err = csvWriter.WriteAll(record)
	return err
}