mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-26 21:54:19 -04:00
* Dump: Use mholt/archive/v3 to support tar including many compressions Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: Allow dump output to stdout Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: Fixed bug present since #6677 where SessionConfig.Provider is never "file" Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: never pack RepoRootPath, LFS.ContentPath and LogRootPath when they are below AppDataPath Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: also dump LFS (fixes #10058) Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: never dump CustomPath if CustomPath is a subdir of or equal to AppDataPath (fixes #10365) Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Use log.Info instead of fmt.Fprintf Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * import ordering * make fmt Co-authored-by: zeripath <art27@cantab.net> Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: Matti R <matti@mdranta.net>
120 lines
3.0 KiB
Go
Vendored
120 lines
3.0 KiB
Go
Vendored
package archiver
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"strings"
|
|
|
|
"github.com/ulikunitz/xz"
|
|
fastxz "github.com/xi2/xz"
|
|
)
|
|
|
|
// TarXz facilitates xz compression
|
|
// (https://tukaani.org/xz/format.html)
|
|
// of tarball archives.
|
|
type TarXz struct {
|
|
*Tar
|
|
}
|
|
|
|
// CheckExt ensures the file extension matches the format.
|
|
func (*TarXz) CheckExt(filename string) error {
|
|
if !strings.HasSuffix(filename, ".tar.xz") &&
|
|
!strings.HasSuffix(filename, ".txz") {
|
|
return fmt.Errorf("filename must have a .tar.xz or .txz extension")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Archive creates a compressed tar file at destination
|
|
// containing the files listed in sources. The destination
|
|
// must end with ".tar.xz" or ".txz". File paths can be
|
|
// those of regular files or directories; directories will
|
|
// be recursively added.
|
|
func (txz *TarXz) Archive(sources []string, destination string) error {
|
|
err := txz.CheckExt(destination)
|
|
if err != nil {
|
|
return fmt.Errorf("output %s", err.Error())
|
|
}
|
|
txz.wrapWriter()
|
|
return txz.Tar.Archive(sources, destination)
|
|
}
|
|
|
|
// Unarchive unpacks the compressed tarball at
|
|
// source to destination. Destination will be
|
|
// treated as a folder name.
|
|
func (txz *TarXz) Unarchive(source, destination string) error {
|
|
txz.wrapReader()
|
|
return txz.Tar.Unarchive(source, destination)
|
|
}
|
|
|
|
// Walk calls walkFn for each visited item in archive.
|
|
func (txz *TarXz) Walk(archive string, walkFn WalkFunc) error {
|
|
txz.wrapReader()
|
|
return txz.Tar.Walk(archive, walkFn)
|
|
}
|
|
|
|
// Create opens txz for writing a compressed
|
|
// tar archive to out.
|
|
func (txz *TarXz) Create(out io.Writer) error {
|
|
txz.wrapWriter()
|
|
return txz.Tar.Create(out)
|
|
}
|
|
|
|
// Open opens t for reading a compressed archive from
|
|
// in. The size parameter is not used.
|
|
func (txz *TarXz) Open(in io.Reader, size int64) error {
|
|
txz.wrapReader()
|
|
return txz.Tar.Open(in, size)
|
|
}
|
|
|
|
// Extract extracts a single file from the tar archive.
|
|
// If the target is a directory, the entire folder will
|
|
// be extracted into destination.
|
|
func (txz *TarXz) Extract(source, target, destination string) error {
|
|
txz.wrapReader()
|
|
return txz.Tar.Extract(source, target, destination)
|
|
}
|
|
|
|
func (txz *TarXz) wrapWriter() {
|
|
var xzw *xz.Writer
|
|
txz.Tar.writerWrapFn = func(w io.Writer) (io.Writer, error) {
|
|
var err error
|
|
xzw, err = xz.NewWriter(w)
|
|
return xzw, err
|
|
}
|
|
txz.Tar.cleanupWrapFn = func() {
|
|
xzw.Close()
|
|
}
|
|
}
|
|
|
|
func (txz *TarXz) wrapReader() {
|
|
var xzr *fastxz.Reader
|
|
txz.Tar.readerWrapFn = func(r io.Reader) (io.Reader, error) {
|
|
var err error
|
|
xzr, err = fastxz.NewReader(r, 0)
|
|
return xzr, err
|
|
}
|
|
}
|
|
|
|
func (txz *TarXz) String() string { return "tar.xz" }
|
|
|
|
// NewTarXz returns a new, default instance ready to be customized and used.
|
|
func NewTarXz() *TarXz {
|
|
return &TarXz{
|
|
Tar: NewTar(),
|
|
}
|
|
}
|
|
|
|
// Compile-time checks to ensure type implements desired interfaces.
|
|
var (
|
|
_ = Reader(new(TarXz))
|
|
_ = Writer(new(TarXz))
|
|
_ = Archiver(new(TarXz))
|
|
_ = Unarchiver(new(TarXz))
|
|
_ = Walker(new(TarXz))
|
|
_ = Extractor(new(TarXz))
|
|
)
|
|
|
|
// DefaultTarXz is a convenient archiver ready to use.
|
|
var DefaultTarXz = NewTarXz()
|