/
command-load.go
76 lines (65 loc) · 1.73 KB
/
command-load.go
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package main
import (
"github.com/jixunmoe-go/backups/utils/backup"
"io"
"os"
"path"
"strings"
)
func printLoadHelp() {
println(appName + " load <name> [time=latest]")
println("")
println("Load an existing backup and send to stdout.")
println("")
println("e.g.")
println(" " + appName + " load blog-daily latest")
println(" Loads the latest copy of 'blog-daily' backup.")
println(" " + appName + " load blog-daily 1599609600")
println(" Loads the local copy of 'blog-daily' backup, created in 2020-09-09.")
println("(SSH Shell)")
println(` ssh backup@example.com load my-db-01 | backup-cli decrypt "$(cat private.key)" > my-db-01.tar.gz`)
println(" Download and decrypt the archive, then save it to a file.")
}
func commandLoad(argv []string) int {
if len(argv) == 0 {
println("do not know which archive to load.")
return 1
}
projectName := argv[0]
archiveTime := ""
if len(argv) > 1 {
archiveTime = argv[1]
}
if projectName == "" {
println("err: name is empty")
return 1
}
return loadArchive(projectName, archiveTime)
}
func loadArchive(projectName, time string) int {
var archive *backup.ArchiveInfo = nil
archives := backup.GetBackupArchives(projectName)
if time == "latest" {
archive = archives[0]
} else {
for _, a := range archives {
if strings.HasPrefix(a.FileName, time) {
archive = a
break
}
}
}
if archive == nil {
println("could not find a valid archive. use the `list` command to see a list of valid times.")
return 3
}
rootDir := backup.GetBackupLocation(projectName)
f, err := os.OpenFile(path.Join(rootDir, archive.FileName), os.O_RDONLY, 0600)
if err != nil {
println("could not open backup.")
return 4
}
_, _ = io.Copy(os.Stdout, f)
_ = f.Close()
return 0
}