KurlesHS/restic
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Fast, secure, efficient backup program
293 commits 10 branches 49 tags 79 MiB
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Alexander Neumann af57fb86d7 Reduce memory usage of decryptReader 
benchmark                         old ns/op     new ns/op     delta
    BenchmarkChunkEncrypt             260007360     261144414     +0.44%
    BenchmarkChunkEncryptParallel     262839697     261201438     -0.62%
    BenchmarkArchiveDirectory         0.00          0.00          +0.00%
    BenchmarkEncryptWriter            86994839      88297245      +1.50%
    BenchmarkEncrypt                  87414849      87406446      -0.01%
    BenchmarkDecryptReader            90354651      89948630      -0.45%
    BenchmarkEncryptDecryptReader     184533845     178374144     -3.34%
    BenchmarkDecrypt                  88153894      88289705      +0.15%
    BenchmarkSaveJSON                 213906        213917        +0.01%
    BenchmarkSaveFrom                 75263853      74881361      -0.51%

    benchmark                         old MB/s     new MB/s     speedup
    BenchmarkChunkEncrypt             40.33        40.15        1.00x
    BenchmarkChunkEncryptParallel     39.89        40.14        1.01x
    BenchmarkEncryptWriter            96.43        95.00        0.99x
    BenchmarkEncrypt                  95.96        95.97        1.00x
    BenchmarkDecryptReader            92.84        93.26        1.00x
    BenchmarkEncryptDecryptReader     45.46        47.03        1.03x
    BenchmarkDecrypt                  95.16        95.01        1.00x
    BenchmarkSaveFrom                 55.73        56.01        1.01x

    benchmark                         old allocs     new allocs     delta
    BenchmarkChunkEncrypt             113            113            +0.00%
    BenchmarkChunkEncryptParallel     104            104            +0.00%
    BenchmarkArchiveDirectory         0              0              +0.00%
    BenchmarkEncryptWriter            20             20             +0.00%
    BenchmarkEncrypt                  14             14             +0.00%
    BenchmarkDecryptReader            18             18             +0.00%
    BenchmarkEncryptDecryptReader     55             40             -27.27%
    BenchmarkDecrypt                  17             17             +0.00%
    BenchmarkSaveJSON                 125            125            +0.00%
    BenchmarkSaveFrom                 119            116            -2.52%

    benchmark                         old bytes     new bytes     delta
    BenchmarkChunkEncrypt             8515750       8515750       +0.00%
    BenchmarkChunkEncryptParallel     8515766       8515766       +0.00%
    BenchmarkArchiveDirectory         0             0             +0.00%
    BenchmarkEncryptWriter            28927         28927         +0.00%
    BenchmarkEncrypt                  422313        422313        +0.00%
    BenchmarkDecryptReader            527827        527827        +0.00%
    BenchmarkEncryptDecryptReader     35814894      4100824       -88.55%
    BenchmarkDecrypt                  8391127       8391127       +0.00%
    BenchmarkSaveJSON                 9208          9208          +0.00%
    BenchmarkSaveFrom                 40541         39694         -2.09%
2015-02-17 18:14:56 +01:00
backend Remove Compress() and Uncompress() from backend 2015-02-16 00:30:51 +01:00
chunker Slightly improve performance for chunker 2015-02-13 20:03:40 +01:00
cmd Remove scanner (not needed any more) 2015-02-16 23:47:14 +01:00
debug debug: do not seek after creating log file 2015-02-08 14:46:29 +01:00
doc Remove duplicate paragraphs 2015-02-02 08:41:53 +01:00
pipe wip 2015-02-15 15:17:24 +01:00
testsuite Refactor testsuite 2015-01-17 16:32:24 +01:00
archiver.go Remove unneeded buffers from Archiver.SaveFile() 2015-02-16 23:47:32 +01:00
archiver_test.go Add test and benchmark for Scanner 2015-02-16 23:13:23 +01:00
blob.go Implement streaming chunker using io.Reader 2015-02-09 00:28:54 +01:00
generic_test.go Rename khepri -> restic 2014-12-05 21:45:49 +01:00
key.go Reduce memory usage of decryptReader 2015-02-17 18:14:56 +01:00
key_int_test.go Refactor tests, integrate debug break points 2015-01-14 17:32:37 +01:00
key_test.go Reduce memory usage of decryptReader 2015-02-17 18:14:56 +01:00
LICENSE LICENSE: Add email address 2014-09-18 21:10:30 +02:00
Makefile Refactor testsuite 2015-01-17 16:32:24 +01:00
map.go Refactor debug into debug module 2015-01-17 16:32:13 +01:00
map_test.go Refactor repository structure 2015-01-14 16:34:30 +01:00
node.go wip 2015-02-15 15:17:24 +01:00
node_darwin.go Extend darwin support 2015-02-03 21:32:01 +01:00
node_linux.go Always cast link counter to uint64 2015-02-03 22:06:17 +01:00
node_windows.go Move platform specific code to different files 2015-02-03 21:18:19 +01:00
pools.go chunker: Add test, only pass hash.Hash to New() 2015-02-11 13:12:36 +01:00
progress.go Progress: Add convenience functions 2015-02-07 17:05:49 +01:00
README.md Correct URL in README.md 2015-01-02 23:16:42 +01:00
restorer.go Make CreateAtNodeAt() independend from Tree 2015-02-03 21:04:51 +01:00
server.go Switch SaveFrom() to Reader/Writer 2015-02-16 22:42:11 +01:00
server_test.go Add test and benchmark for SaveFrom() 2015-02-16 22:35:46 +01:00
snapshot.go Introduce UserID, GroupID for snapshot 2015-02-03 22:04:09 +01:00
snapshot_darwin.go Introduce UserID, GroupID for snapshot 2015-02-03 22:04:09 +01:00
snapshot_linux.go Introduce UserID, GroupID for snapshot 2015-02-03 22:04:09 +01:00
snapshot_test.go Refactor repository structure 2015-01-14 16:34:30 +01:00
snapshot_windows.go Introduce UserID, GroupID for snapshot 2015-02-03 22:04:09 +01:00
testsuite.sh wip 2015-02-15 15:17:24 +01:00
tree.go wip 2015-02-15 15:17:24 +01:00
tree_test.go Refactor repository structure 2015-01-14 16:34:30 +01:00
wercker.yml Add gofmt test to wercker.yml 2015-02-15 15:07:43 +01:00
zerrors_linux.go Rename khepri -> restic 2014-12-05 21:45:49 +01:00

README.md

Stories in Ready wercker status sourcegraph status

WARNING

WARNING: At the moment, consider restic as alpha quality software, it is not yet finished. Do not use it for real data!

Restic

Restic is a program that does backups right. The design goals are:

  • Easy: Doing backups should be a frictionless process, otherwise you are tempted to skip it. Restic should be easy to configure and use, so that in the unlikely event of a data loss you can just restore it. Likewise, restoring data should not be complicated.

  • Fast: Backing up your data with restic should only be limited by your network or harddisk bandwidth so that you can backup your files every day. Nobody does backups if it takes too much time. Restoring backups should only transfer data that is needed for the files that are to be restored, so that this process is also fast.

  • Verifiable: Much more important than backup is restore, so restic enables you to easily verify that all data can be restored.

  • Secure: Restic uses cryptography to guarantee confidentiality and integrity of your data. The location the backup data is stored is assumed not to be a trusted environment (e.g. a shared space where others like system administrators are able to access your backups). Restic is built to secure your data against such attackers.

  • Efficient: With the growth of data, additional snapshots should only take the storage of the actual increment. Even more, duplicate data should be de-duplicated before it is actually written to the storage backend to save precious backup space.

Building

Install Go (at least 1.2), then run:

export GOPATH=~/src/go
go get github.com/restic/restic/cmd/restic
$GOPATH/bin/restic --help

Contribute

Contributions are welcome! Please make sure that all code submitted in pull-requests is properly formatted with gofmt. Installing the script fmt-check from https://github.com/edsrzf/gofmt-git-hook locally as a pre-commit hook checks formatting before commiting, just copy this script to .git/hooks/pre-commit.

If you are unsure what to do, please have a look at the github issues, especially those tagged minor complexity.

License

Restic is licensed under "BSD 2-Clause License". You can find the complete text in the file LICENSE.