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Add -S option to tar for efficient sparse file handling 

Fixes issue #3282
This commit is contained in:
Dinesh Subhraveti 2013-12-19 21:41:22 -08:00
parent efde305c05
commit 733bf5d3dd
2 changed files with 3 additions and 2 deletions
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1
AUTHORS
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@ -47,6 +47,7 @@ Daniel YC Lin <dlin.tw@gmail.com>
Darren Coxall <darren@darrencoxall.com>
David Calavera <david.calavera@gmail.com>
David Sissitka <me@dsissitka.com>
Dinesh Subhraveti <dineshs@altiscale.com>
Deni Bertovic <deni@kset.org>
Dominik Honnef <dominik@honnef.co>
Don Spaulding <donspauldingii@gmail.com>

4
archive/archive.go
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@ -149,7 +149,7 @@ func escapeName(name string) string {
// Tar creates an archive from the directory at `path`, only including files whose relative
// paths are included in `filter`. If `filter` is nil, then all files are included.
func TarFilter(path string, options *TarOptions) (io.Reader, error) {
args := []string{"tar", "--numeric-owner", "-f", "-", "-C", path, "-T", "-"}
args := []string{"tar", "-S", "--numeric-owner", "-f", "-", "-C", path, "-T", "-"}
if options.Includes == nil {
options.Includes = []string{"."}
}
@ -228,7 +228,7 @@ func Untar(archive io.Reader, path string, options *TarOptions) error {
compression := DetectCompression(buf)
utils.Debugf("Archive compression detected: %s", compression.Extension())
args := []string{"--numeric-owner", "-f", "-", "-C", path, "-x" + compression.Flag()}
args := []string{"-S", "--numeric-owner", "-f", "-", "-C", path, "-x" + compression.Flag()}
if options != nil {
for _, exclude := range options.Excludes {