packer-cn/builder/vmware/step_clean_files.go

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package vmware
import (
"fmt"
"github.com/mitchellh/multistep"
"github.com/mitchellh/packer/packer"
"os"
"path/filepath"
)
// These are the extensions of files that are important for the function
// of a VMware virtual machine. Any other file is discarded as part of the
// build.
var KeepFileExtensions = []string{".nvram", ".vmdk", ".vmsd", ".vmx", ".vmxf"}
// This step removes unnecessary files from the final result.
//
// Uses:
// config *config
// ui packer.Ui
//
// Produces:
// <nothing>
type stepCleanFiles struct{}
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func (stepCleanFiles) Run(state multistep.StateBag) multistep.StepAction {
config := state.Get("config").(*config)
ui := state.Get("ui").(packer.Ui)
ui.Say("Deleting unnecessary VMware files...")
visit := func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if !info.IsDir() {
// If the file isn't critical to the function of the
// virtual machine, we get rid of it.
keep := false
ext := filepath.Ext(path)
for _, goodExt := range KeepFileExtensions {
if goodExt == ext {
keep = true
break
}
}
if !keep {
ui.Message(fmt.Sprintf("Deleting: %s", path))
return os.Remove(path)
}
}
return nil
}
if err := filepath.Walk(config.OutputDir, visit); err != nil {
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state.Put("error", err)
return multistep.ActionHalt
}
return multistep.ActionContinue
}
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func (stepCleanFiles) Cleanup(multistep.StateBag) {}