92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
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package chroot
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import (
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"bytes"
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"context"
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"fmt"
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"log"
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"path/filepath"
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"github.com/hashicorp/packer/helper/multistep"
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"github.com/hashicorp/packer/packer"
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)
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// StepCopyFiles copies some files from the host into the chroot environment.
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//
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// Produces:
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// copy_files_cleanup CleanupFunc - A function to clean up the copied files
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// early.
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type StepCopyFiles struct {
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files []string
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}
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func (s *StepCopyFiles) Run(ctx context.Context, state multistep.StateBag) multistep.StepAction {
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config := state.Get("config").(*Config)
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mountPath := state.Get("mount_path").(string)
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ui := state.Get("ui").(packer.Ui)
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wrappedCommand := state.Get("wrappedCommand").(CommandWrapper)
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stderr := new(bytes.Buffer)
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s.files = make([]string, 0, len(config.CopyFiles))
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if len(config.CopyFiles) > 0 {
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ui.Say("Copying files from host to chroot...")
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for _, path := range config.CopyFiles {
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ui.Message(path)
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chrootPath := filepath.Join(mountPath, path)
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log.Printf("Copying '%s' to '%s'", path, chrootPath)
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cmdText, err := wrappedCommand(fmt.Sprintf("cp --remove-destination %s %s", path, chrootPath))
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if err != nil {
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err := fmt.Errorf("Error building copy command: %s", err)
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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stderr.Reset()
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cmd := ShellCommand(cmdText)
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cmd.Stderr = stderr
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if err := cmd.Run(); err != nil {
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err := fmt.Errorf(
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"Error copying file: %s\nnStderr: %s", err, stderr.String())
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state.Put("error", err)
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ui.Error(err.Error())
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return multistep.ActionHalt
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}
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s.files = append(s.files, chrootPath)
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}
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}
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state.Put("copy_files_cleanup", s)
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return multistep.ActionContinue
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}
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func (s *StepCopyFiles) Cleanup(state multistep.StateBag) {
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ui := state.Get("ui").(packer.Ui)
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if err := s.CleanupFunc(state); err != nil {
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ui.Error(err.Error())
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}
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}
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func (s *StepCopyFiles) CleanupFunc(state multistep.StateBag) error {
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wrappedCommand := state.Get("wrappedCommand").(CommandWrapper)
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if s.files != nil {
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for _, file := range s.files {
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log.Printf("Removing: %s", file)
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localCmdText, err := wrappedCommand(fmt.Sprintf("rm -f %s", file))
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if err != nil {
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return err
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}
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localCmd := ShellCommand(localCmdText)
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if err := localCmd.Run(); err != nil {
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return err
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}
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}
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}
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s.files = nil
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return nil
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}
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