Files
pg-bkup/pkg/restore.go

114 lines
3.4 KiB
Go

package pkg
import (
"fmt"
"github.com/jkaninda/pg-bkup/utils"
"github.com/spf13/cobra"
"os"
"os/exec"
"path/filepath"
)
func StartRestore(cmd *cobra.Command) {
//Set env
utils.SetEnv("STORAGE_PATH", storagePath)
utils.GetEnv(cmd, "dbname", "DB_NAME")
utils.GetEnv(cmd, "port", "DB_PORT")
//Get flag value and set env
s3Path = utils.GetEnv(cmd, "path", "S3_PATH")
storage = utils.GetEnv(cmd, "storage", "STORAGE")
file = utils.GetEnv(cmd, "file", "FILE_NAME")
executionMode, _ = cmd.Flags().GetString("mode")
bucket := utils.GetEnvVariable("AWS_S3_BUCKET_NAME", "BUCKET_NAME")
switch storage {
case "s3":
utils.Info("Restore database from s3")
err := utils.DownloadFile(tmpPath, file, bucket, s3Path)
if err != nil {
utils.Fatal("Error download file from s3 ", file, err)
}
RestoreDatabase(file)
case "local":
utils.Info("Restore database from local")
copyToTmp(storagePath, file)
RestoreDatabase(file)
case "ssh":
fmt.Println("x is 2")
case "ftp":
fmt.Println("x is 3")
default:
utils.Info("Restore database from local")
RestoreDatabase(file)
}
}
// RestoreDatabase restore database
func RestoreDatabase(file string) {
dbHost = os.Getenv("DB_HOST")
dbPassword = os.Getenv("DB_PASSWORD")
dbUserName = os.Getenv("DB_USERNAME")
dbName = os.Getenv("DB_NAME")
dbPort = os.Getenv("DB_PORT")
gpgPassphrase := os.Getenv("GPG_PASSPHRASE")
//storagePath = os.Getenv("STORAGE_PATH")
if file == "" {
utils.Fatal("Error, file required")
}
extension := filepath.Ext(fmt.Sprintf("%s/%s", tmpPath, file))
if extension == ".gpg" {
if gpgPassphrase == "" {
utils.Fatal("Error, GPG_PASSPHRASE environment variable required, you need to set the GPG_PASSPHRASE")
} else {
//Decrypt file
err := Decrypt(filepath.Join(tmpPath, file), gpgPassphrase)
if err != nil {
utils.Fatal("Error decrypting file ", file, err)
}
//Update file name
file = RemoveLastExtension(file)
}
}
if os.Getenv("DB_HOST") == "" || os.Getenv("DB_NAME") == "" || os.Getenv("DB_USERNAME") == "" || os.Getenv("DB_PASSWORD") == "" || file == "" {
utils.Fatal("Please make sure all required environment variables are set")
} else {
if utils.FileExists(fmt.Sprintf("%s/%s", tmpPath, file)) {
err := os.Setenv("PGPASSWORD", dbPassword)
if err != nil {
return
}
utils.TestDatabaseConnection()
extension := filepath.Ext(fmt.Sprintf("%s/%s", tmpPath, file))
// Restore from compressed file / .sql.gz
if extension == ".gz" {
str := "zcat " + fmt.Sprintf("%s/%s", tmpPath, file) + " | psql -h " + os.Getenv("DB_HOST") + " -p " + os.Getenv("DB_PORT") + " -U " + os.Getenv("DB_USERNAME") + " -v -d " + os.Getenv("DB_NAME")
_, err := exec.Command("bash", "-c", str).Output()
if err != nil {
utils.Fatal("Error, in restoring the database ", err)
}
utils.Done("Database has been restored")
} else if extension == ".sql" {
//Restore from sql file
str := "cat " + fmt.Sprintf("%s/%s", tmpPath, file) + " | psql -h " + os.Getenv("DB_HOST") + " -p " + os.Getenv("DB_PORT") + " -U " + os.Getenv("DB_USERNAME") + " -v -d " + os.Getenv("DB_NAME")
_, err := exec.Command("bash", "-c", str).Output()
if err != nil {
utils.Fatal("Error in restoring the database", err)
}
utils.Done("Database has been restored")
} else {
utils.Fatal("Unknown file extension ", extension)
}
} else {
utils.Fatal("File not found in ", fmt.Sprintf("%s/%s", tmpPath, file))
}
}
}