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packer-cn
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Cleanup

This commit is contained in:
Chris Bednarski 2015-06-18 04:41:05 -07:00
parent b767aa7f99
commit d8f78d9174
1 changed files with 106 additions and 202 deletions
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308
post-processor/compress/post-processor.go
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@ -46,55 +46,6 @@ var (
filenamePattern = regexp.MustCompile(`(?:\.([a-z0-9]+))`)
)
func (config *Config) detectFromFilename() {
extensions := map[string]string{
"tar": "tar",
"zip": "zip",
"gz": "pgzip",
"lz4": "lz4",
}
result := filenamePattern.FindAllStringSubmatch(config.OutputPath, -1)
if len(result) == 0 {
config.Algorithm = "pgzip"
config.Archive = "tar"
return
}
// Should we make an archive? E.g. tar or zip?
var nextToLastItem string
if len(result) == 1 {
nextToLastItem = ""
} else {
nextToLastItem = result[len(result)-2][1]
}
lastItem := result[len(result)-1][1]
if nextToLastItem == "tar" {
config.Archive = "tar"
}
if lastItem == "zip" || lastItem == "tar" {
config.Archive = lastItem
// Tar or zip is our final artifact. Bail out.
return
}
// Should we compress the artifact?
algorithm, ok := extensions[lastItem]
if ok {
config.Algorithm = algorithm
// We found our compression algorithm. Bail out.
return
}
// We didn't find anything. Default to tar + pgzip
config.Algorithm = "pgzip"
config.Archive = "tar"
return
}
func (p *PostProcessor) Configure(raws ...interface{}) error {
err := config.Decode(&p.config, &config.DecodeOpts{
Interpolate: true,
@ -157,6 +108,7 @@ func (p *PostProcessor) Configure(raws ...interface{}) error {
func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (packer.Artifact, bool, error) {
target := p.config.OutputPath
keep := p.config.KeepInputArtifact
newArtifact := &Artifact{Path: target}
outputFile, err := os.Create(target)
@ -172,20 +124,11 @@ func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (pac
switch p.config.Algorithm {
case "lz4":
ui.Say(fmt.Sprintf("Preparing lz4 compression for %s", target))
lzwriter := lz4.NewWriter(outputFile)
if p.config.CompressionLevel > gzip.DefaultCompression {
lzwriter.Header.HighCompression = true
}
defer lzwriter.Close()
output = lzwriter
output, err = makeLZ4Writer(outputFile, p.config.CompressionLevel)
defer output.Close()
case "pgzip":
ui.Say(fmt.Sprintf("Preparing gzip compression for %s", target))
gzipWriter, err := pgzip.NewWriterLevel(outputFile, p.config.CompressionLevel)
if err != nil {
return nil, false, ErrInvalidCompressionLevel
}
gzipWriter.SetConcurrency(500000, runtime.GOMAXPROCS(-1))
output = gzipWriter
output, err = makePgzipWriter(outputFile, p.config.CompressionLevel)
defer output.Close()
default:
output = outputFile
@ -199,34 +142,112 @@ func (p *PostProcessor) PostProcess(ui packer.Ui, artifact packer.Artifact) (pac
// Build an archive, if we're supposed to do that.
switch p.config.Archive {
case "tar":
ui.Say(fmt.Sprintf("Taring %s with %s compression", target, compression))
createTarArchive(artifact.Files(), output)
ui.Say(fmt.Sprintf("Tarring %s with %s compression", target, compression))
err = createTarArchive(artifact.Files(), output)
if err != nil {
return nil, keep, fmt.Errorf("Error creating tar: %s", err)
}
case "zip":
ui.Say(fmt.Sprintf("Zipping %s", target))
archive := zip.NewWriter(output)
defer archive.Close()
err = createZipArchive(artifact.Files(), output)
if err != nil {
return nil, keep, fmt.Errorf("Error creating zip: %s", err)
}
default:
ui.Say(fmt.Sprintf("Copying %s with %s compression", target, compression))
// Filename indicates no tarball (just compress) so we'll do an io.Copy
// into our compressor.
if len(artifact.Files()) != 1 {
return nil, false, fmt.Errorf(
return nil, keep, fmt.Errorf(
"Can only have 1 input file when not using tar/zip. Found %d "+
"files: %v", len(artifact.Files()), artifact.Files())
}
source, err := os.Open(artifact.Files()[0])
if err != nil {
return nil, false, fmt.Errorf(
return nil, keep, fmt.Errorf(
"Failed to open source file %s for reading: %s",
artifact.Files()[0], err)
}
defer source.Close()
io.Copy(output, source)
if _, err = io.Copy(output, source); err != nil {
return nil, keep, fmt.Errorf("Failed to compress %s: %s",
artifact.Files()[0], err)
}
}
ui.Say(fmt.Sprintf("Archive %s completed", target))
return newArtifact, p.config.KeepInputArtifact, nil
return newArtifact, keep, nil
}
func (config *Config) detectFromFilename() {
extensions := map[string]string{
"tar": "tar",
"zip": "zip",
"gz": "pgzip",
"lz4": "lz4",
}
result := filenamePattern.FindAllStringSubmatch(config.OutputPath, -1)
// No dots. Bail out with defaults.
if len(result) == 0 {
config.Algorithm = "pgzip"
config.Archive = "tar"
return
}
// Parse the last two .groups, if they're there
lastItem := result[len(result)-1][1]
var nextToLastItem string
if len(result) == 1 {
nextToLastItem = ""
} else {
nextToLastItem = result[len(result)-2][1]
}
// Should we make an archive? E.g. tar or zip?
if nextToLastItem == "tar" {
config.Archive = "tar"
}
if lastItem == "zip" || lastItem == "tar" {
config.Archive = lastItem
// Tar or zip is our final artifact. Bail out.
return
}
// Should we compress the artifact?
algorithm, ok := extensions[lastItem]
if ok {
config.Algorithm = algorithm
// We found our compression algorithm. Bail out.
return
}
// We didn't match a known compression format. Default to tar + pgzip
config.Algorithm = "pgzip"
config.Archive = "tar"
return
}
func makeLZ4Writer(output io.WriteCloser, compressionLevel int) (io.WriteCloser, error) {
lzwriter := lz4.NewWriter(output)
if compressionLevel > gzip.DefaultCompression {
lzwriter.Header.HighCompression = true
}
return lzwriter, nil
}
func makePgzipWriter(output io.WriteCloser, compressionLevel int) (io.WriteCloser, error) {
gzipWriter, err := pgzip.NewWriterLevel(output, compressionLevel)
if err != nil {
return nil, ErrInvalidCompressionLevel
}
gzipWriter.SetConcurrency(500000, runtime.GOMAXPROCS(-1))
return gzipWriter, nil
}
func createTarArchive(files []string, output io.WriteCloser) error {
@ -245,12 +266,7 @@ func createTarArchive(files []string, output io.WriteCloser) error {
return fmt.Errorf("Unable to get fileinfo for %s: %s", path, err)
}
target, err := os.Readlink(path)
if err != nil {
return fmt.Errorf("Failed to readlink for %s: %s", path, err)
}
header, err := tar.FileInfoHeader(fi, target)
header, err := tar.FileInfoHeader(fi, path)
if err != nil {
return fmt.Errorf("Failed to create tar header for %s: %s", path, err)
}
@ -267,139 +283,27 @@ func createTarArchive(files []string, output io.WriteCloser) error {
}
func createZipArchive(files []string, output io.WriteCloser) error {
return fmt.Errorf("Not implemented")
}
archive := zip.NewWriter(output)
defer archive.Close()
func (p *PostProcessor) cmpGZIP(files []string, target string) ([]string, error) {
var res []string
for _, name := range files {
filename := filepath.Join(target, filepath.Base(name))
fw, err := os.Create(filename)
for _, path := range files {
path = filepath.ToSlash(path)
source, err := os.Open(path)
if err != nil {
return nil, fmt.Errorf("gzip error creating archive: %s", err)
return fmt.Errorf("Unable to read file %s: %s", path, err)
}
cw, err := gzip.NewWriterLevel(fw, p.config.CompressionLevel)
defer source.Close()
target, err := archive.Create(path)
if err != nil {
fw.Close()
return nil, fmt.Errorf("gzip error: %s", err)
return fmt.Errorf("Failed to add zip header for %s: %s", path, err)
}
fr, err := os.Open(name)
_, err = io.Copy(target, source)
if err != nil {
cw.Close()
fw.Close()
return nil, fmt.Errorf("gzip error: %s", err)
return fmt.Errorf("Failed to copy %s data to archive: %s", path, err)
}
if _, err = io.Copy(cw, fr); err != nil {
cw.Close()
fr.Close()
fw.Close()
return nil, fmt.Errorf("gzip error: %s", err)
}
cw.Close()
fr.Close()
fw.Close()
res = append(res, filename)
}
return res, nil
}
func (p *PostProcessor) cmpPGZIP(files []string, target string) ([]string, error) {
var res []string
for _, name := range files {
filename := filepath.Join(target, filepath.Base(name))
fw, err := os.Create(filename)
if err != nil {
return nil, fmt.Errorf("pgzip error: %s", err)
}
cw, err := pgzip.NewWriterLevel(fw, p.config.CompressionLevel)
if err != nil {
fw.Close()
return nil, fmt.Errorf("pgzip error: %s", err)
}
fr, err := os.Open(name)
if err != nil {
cw.Close()
fw.Close()
return nil, fmt.Errorf("pgzip error: %s", err)
}
if _, err = io.Copy(cw, fr); err != nil {
cw.Close()
fr.Close()
fw.Close()
return nil, fmt.Errorf("pgzip error: %s", err)
}
cw.Close()
fr.Close()
fw.Close()
res = append(res, filename)
}
return res, nil
}
func (p *PostProcessor) cmpLZ4(src []string, dst string) ([]string, error) {
var res []string
for _, name := range src {
filename := filepath.Join(dst, filepath.Base(name))
fw, err := os.Create(filename)
if err != nil {
return nil, fmt.Errorf("lz4 error: %s", err)
}
cw := lz4.NewWriter(fw)
if err != nil {
fw.Close()
return nil, fmt.Errorf("lz4 error: %s", err)
}
if p.config.CompressionLevel > gzip.DefaultCompression {
cw.Header.HighCompression = true
}
fr, err := os.Open(name)
if err != nil {
cw.Close()
fw.Close()
return nil, fmt.Errorf("lz4 error: %s", err)
}
if _, err = io.Copy(cw, fr); err != nil {
cw.Close()
fr.Close()
fw.Close()
return nil, fmt.Errorf("lz4 error: %s", err)
}
cw.Close()
fr.Close()
fw.Close()
res = append(res, filename)
}
return res, nil
}
func (p *PostProcessor) cmpZIP(src []string, dst string) ([]string, error) {
fw, err := os.Create(dst)
if err != nil {
return nil, fmt.Errorf("zip error: %s", err)
}
defer fw.Close()
zw := zip.NewWriter(fw)
defer zw.Close()
for _, name := range src {
header, err := zw.Create(name)
if err != nil {
return nil, fmt.Errorf("zip error: %s", err)
}
fr, err := os.Open(name)
if err != nil {
return nil, fmt.Errorf("zip error: %s", err)
}
if _, err = io.Copy(header, fr); err != nil {
fr.Close()
return nil, fmt.Errorf("zip error: %s", err)
}
fr.Close()
}
return []string{dst}, nil
return nil
}