166 lines
3.3 KiB
Go
166 lines
3.3 KiB
Go
package internal
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import (
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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type HookArray = []string
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type Hooks struct {
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Before HookArray `mapstructure:"before"`
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After HookArray `mapstructure:"after"`
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}
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type Options map[string]map[string][]string
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type Location struct {
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From string `mapstructure:"from"`
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To []string `mapstructure:"to"`
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Hooks Hooks `mapstructure:"hooks"`
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Cron string `mapstructure:"cron"`
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Options Options `mapstructure:"options"`
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}
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func (l Location) validate(c Config) error {
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// Check if backends are all valid
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for _, to := range l.To {
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_, ok := c.Backends[to]
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if !ok {
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return fmt.Errorf("invalid backend `%s`", to)
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}
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}
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return nil
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}
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func (l Location) getOptions(key string) []string {
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var options []string
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saved := l.Options[key]
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for k, values := range saved {
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for _, value := range values {
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options = append(options, fmt.Sprintf("--%s", k), value)
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}
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}
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return options
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}
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func ExecuteHooks(commands []string, options ExecuteOptions) error {
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for _, command := range commands {
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out, err := ExecuteCommand(options, "-c", command)
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fmt.Println(out)
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return err
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}
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return nil
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}
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func (l Location) Backup() error {
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c := GetConfig()
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from := GetPathRelativeToConfig(l.From)
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for _, to := range l.To {
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backend := c.Backends[to]
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options := ExecuteOptions{
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Command: "bash",
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Envs: backend.getEnv(),
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Dir: from,
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}
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if err := ExecuteHooks(l.Hooks.Before, options); err != nil {
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return nil
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}
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{
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flags := l.getOptions("backup")
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cmd := []string{"backup"}
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cmd = append(cmd, flags...)
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cmd = append(cmd, ".")
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out, err := ExecuteResticCommand(options, cmd...)
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fmt.Println(out)
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if err != nil {
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return err
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}
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}
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if err := ExecuteHooks(l.Hooks.After, options); err != nil {
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return nil
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}
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}
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return nil
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}
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func (l Location) Forget(prune bool, dry bool) error {
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c := GetConfig()
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from := GetPathRelativeToConfig(l.From)
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for _, to := range l.To {
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backend := c.Backends[to]
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options := ExecuteOptions{
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Envs: backend.getEnv(),
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Dir: from,
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}
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flags := l.getOptions("forget")
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cmd := []string{"forget", "--path", from}
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if prune {
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cmd = append(cmd, "--prune")
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}
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if dry {
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cmd = append(cmd, "--dry-run")
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}
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cmd = append(cmd, flags...)
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out, err := ExecuteResticCommand(options, cmd...)
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fmt.Println(out)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (l Location) hasBackend(backend string) bool {
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for _, b := range l.To {
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if b == backend {
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return true
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}
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}
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return false
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}
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func (l Location) Restore(to, from string, force bool) error {
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if from == "" {
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from = l.To[0]
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} else if !l.hasBackend(from) {
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return fmt.Errorf("invalid backend: \"%s\"", from)
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}
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to, err := filepath.Abs(to)
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if err != nil {
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return err
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}
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fmt.Printf("Restoring location to %s using %s.\n", to, from)
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// Check if target is empty
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if !force {
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notEmptyError := fmt.Errorf("target %s is not empty", to)
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_, err = os.Stat(to)
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if err == nil {
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files, err := ioutil.ReadDir(to)
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if err != nil {
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return err
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}
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if len(files) > 0 {
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return notEmptyError
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}
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} else {
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if !os.IsNotExist(err) {
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return err
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}
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}
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}
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c := GetConfig()
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backend := c.Backends[from]
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err = backend.Exec([]string{"restore", "--target", to, "--path", GetPathRelativeToConfig(l.From), "latest"})
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if err != nil {
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return err
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}
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return nil
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}
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