packer-cn/post-processor/vagrant/vmware.go

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package vagrant
import (
"compress/flate"
"fmt"
"github.com/mitchellh/packer/common"
"github.com/mitchellh/packer/packer"
"io/ioutil"
"os"
"path/filepath"
"strconv"
)
type VMwareBoxConfig struct {
common.PackerConfig `mapstructure:",squash"`
OutputPath string `mapstructure:"output"`
VagrantfileTemplate string `mapstructure:"vagrantfile_template"`
CompressionLevel string `mapstructure:"compression_level"`
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tpl *packer.ConfigTemplate
}
type VMwareBoxPostProcessor struct {
config VMwareBoxConfig
}
func (p *VMwareBoxPostProcessor) Configure(raws ...interface{}) error {
md, err := common.DecodeConfig(&p.config, raws...)
if err != nil {
return err
}
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p.config.tpl, err = packer.NewConfigTemplate()
if err != nil {
return err
}
p.config.tpl.UserVars = p.config.PackerUserVars
// Accumulate any errors
errs := common.CheckUnusedConfig(md)
validates := map[string]*string{
"output": &p.config.OutputPath,
"vagrantfile_template": &p.config.VagrantfileTemplate,
"compression_level": &p.config.CompressionLevel,
}
for n, ptr := range validates {
if err := p.config.tpl.Validate(*ptr); err != nil {
errs = packer.MultiErrorAppend(
errs, fmt.Errorf("Error parsing %s: %s", n, err))
}
}
if errs != nil && len(errs.Errors) > 0 {
return errs
}
return nil
}
func (p *VMwareBoxPostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, bool, error) {
// Compile the output path
outputPath, err := p.config.tpl.Process(p.config.OutputPath, &OutputPathTemplate{
ArtifactId: artifact.Id(),
BuildName: p.config.PackerBuildName,
Provider: "vmware",
})
if err != nil {
return nil, false, err
}
// Create a temporary directory for us to build the contents of the box in
dir, err := ioutil.TempDir("", "packer")
if err != nil {
return nil, false, err
}
defer os.RemoveAll(dir)
// Copy all of the original contents into the temporary directory
for _, path := range artifact.Files() {
ui.Message(fmt.Sprintf("Copying: %s", path))
dstPath := filepath.Join(dir, filepath.Base(path))
if err := CopyContents(dstPath, path); err != nil {
return nil, false, err
}
}
if p.config.VagrantfileTemplate != "" {
f, err := os.Open(p.config.VagrantfileTemplate)
if err != nil {
return nil, false, err
}
defer f.Close()
contents, err := ioutil.ReadAll(f)
if err != nil {
return nil, false, err
}
// Create the Vagrantfile from the template
vf, err := os.Create(filepath.Join(dir, "Vagrantfile"))
if err != nil {
return nil, false, err
}
defer vf.Close()
vagrantfileContents, err := p.config.tpl.Process(string(contents), nil)
if err != nil {
return nil, false, fmt.Errorf("Error writing Vagrantfile: %s", err)
}
vf.Write([]byte(vagrantfileContents))
vf.Close()
}
var level int = flate.DefaultCompression
if p.config.CompressionLevel != "" {
level, err = strconv.Atoi(p.config.CompressionLevel)
if err != nil {
return nil, false, err
}
}
// Create the metadata
metadata := map[string]string{"provider": "vmware_desktop"}
if err := WriteMetadata(dir, metadata); err != nil {
return nil, false, err
}
// Compress the directory to the given output path
ui.Message(fmt.Sprintf("Compressing box..."))
if err := DirToBox(outputPath, dir, ui, level); err != nil {
return nil, false, err
}
return NewArtifact("vmware", outputPath), false, nil
}