cmd/upspin: do not read whole files into memory in tar

Use Client's Open and Create methods instead of Get and Put.
This effectively limits the peak memory usage of a tar/untar operation
to upspin.BlockSize plus epsilon, while before this change you required
as much memory as the largest file you were tarring/untarring.

Change-Id: Ib7c5a2011e73e3d6089b0df9ad353be231437052
Reviewed-on: https://upspin-review.googlesource.com/17460
Reviewed-by: Rob Pike <r@golang.org>
1 file changed
tree: 8e1f92b72486584c6c38e1bdd9f7b0277b38cc1c
  1. .travis.yml
  2. AUTHORS
  3. CONDUCT.md
  4. CONTRIBUTING.md
  5. CONTRIBUTORS
  6. Gopkg.lock
  7. Gopkg.toml
  8. LICENSE
  9. PATENTS
  10. README.binary
  11. README.md
  12. access/
  13. bind/
  14. cache/
  15. client/
  16. cloud/
  17. cmd/
  18. config/
  19. dir/
  20. doc/
  21. errors/
  22. factotum/
  23. flags/
  24. key/
  25. log/
  26. metric/
  27. pack/
  28. path/
  29. rpc/
  30. serverutil/
  31. shutdown/
  32. store/
  33. subcmd/
  34. test/
  35. transports/
  36. upbox/
  37. upspin/
  38. user/
  39. valid/
  40. vendor/
  41. version/
README.md

Upspin

Augie

Documentation: upspin.io

About the project

Upspin is an experimental project to build a framework for naming and sharing files and other data securely, uniformly, and globally: a global name system of sorts.

It is not a file system, but a set of protocols and reference implementations that can be used to join things like file systems and other storage services to the name space.

Performance is not a primary goal. Uniformity and security are.

Upspin is not an official Google product.

Status

Upspin has rough edges, and is not yet suitable for non-technical users.

Build Status

Contributing

The code repository lives at upspin.googlesource.com and is mirrored to GitHub.

Note that the Upspin project does not use GitHub pull requests, and that we use the issue tracker for bug reports and proposals only.

See the Contribution Guidelines for more information on contributing to the project.

Reporting issues

Please report issues through our issue tracker.

Community

All Upspin users should subscribe to the Upspin Announcements mailing list to receive critical information about the project.

Use the Upspin mailing list for discussion about Upspin use and development.

Code of Conduct

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms.

The Upspin mascot is Copyright 2017 Renee French. All Rights Reserved.