greg/pcompress
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73 commits

Author SHA1 Message Date
Moinak Ghosh
0192790c02 Add Dispack filter with auto-detection of x86 executables in archive mode. 
More elaborate magic header based detection of 32-bit and 64-bit x86 binaries.
Always use fast-mode LZ4 in Adaptive modes.
 2013-11-24 19:45:58 +05:30
Moinak Ghosh
1e2c3e479a Optimize preprocessed compression and avoid a bunch of memory copies. 
Fix a crash.
Add a few more file types.
More comments.
 2013-11-22 20:44:26 +05:30
Moinak Ghosh
11584cab52 Add fast handling of totally incompressible data (like Jpegs) in adaptive modes. 
Add function to indicate totally incompressible data when archiving.
Reformat if statements in some places to reduce branching.
 2013-11-15 21:06:23 +05:30
Moinak Ghosh
cae9de9b2e Leverage file type detection(archiver) to improve compression performance. 
Use detected file/data type(archiver) for Adaptive compression modes.
Update type flags and add more extensions.
 2013-11-08 23:50:28 +05:30
Moinak Ghosh
991482403b Add extension based file type detection and setting segment data type. 
Use Bob Jenkins Minimal Perfect Hash to check for known extensions.
Use semaphore signaling and direct buffer copy for extraction.
Miscellaneous fixes.
 2013-11-07 21:48:54 +05:30
Moinak Ghosh
448890a014 Replace slow pipe with direct memory copy for archive extraction. 
Miscellaneous corrections and tweaks.
 2013-11-03 23:15:55 +05:30
Moinak Ghosh
7ed532133e Avoid using pipe during archive creation. Use semaphores and direct memory copy. 2013-11-02 23:43:59 +05:30
Moinak Ghosh
a374ca5909 Use mmap to read from the pathlist file for performance. 2013-11-02 12:14:46 +05:30
Moinak Ghosh
dcccffd7fa Archiving support using Libarchive: Fully functional archiving and extraction. 
Functionality to sort pathnames based on file extension and size.
 2013-11-01 23:15:40 +05:30
Moinak Ghosh
e09d8a485c Archiving support using Libarchive: Working archive extraction. 2013-10-31 00:15:17 +05:30
Moinak Ghosh
8e4b774c8c More changes for archiving. 
Allow multiple filenames on command line when archiving.
Remove unneded small block writes with libarchive.
 2013-10-27 20:36:48 +05:30
Moinak Ghosh
46b11def08 Archiving support using Libarchive: Work in progress changes #3. 
Make log_msg() add newline by default.
 2013-10-24 00:16:04 +05:30
Moinak Ghosh
7f81869874 Archiving support using Libarchive: Work in progress changes. 
Change all perror() calls to use logger.
Make the config script a little verbose.
 2013-10-20 23:54:27 +05:30
Moinak Ghosh
cee8d88ded Bump version for upcoming release. 2013-08-27 21:41:16 +05:30
Moinak Ghosh
413a2a2fb1 Update Changelog and bump version for 2.3 release. 2013-08-10 10:25:41 +05:30
Moinak Ghosh
fe18afbcf4 Use wrapper script to set paths when launching pcompress from build directory. 
Use smaller max block size when doing global dedupe.
Fix init of executable name.
 2013-08-07 22:03:52 +05:30
Moinak Ghosh
c859cf35d5 Make Pcompress functionality into a library - initial changes. 2013-06-02 20:54:33 +05:30
Moinak Ghosh
8db0bef184 Bump version and update Changelog for 2.2 release. 2013-05-28 21:45:19 +05:30
Moinak Ghosh
8b3761ee81 Update Changelog, docs and bump version for 2.1 release. 2013-05-09 18:53:11 +05:30
Moinak Ghosh
f05c7905b2 Bump version for release. 2013-04-26 18:47:52 +05:30
Moinak Ghosh
fbf4658635 Implement Global Deduplication. 2013-03-24 23:21:17 +05:30
Moinak Ghosh
b7fdeb08bc Work in progress global dedupe changes. 2013-03-20 22:47:03 +05:30
Moinak Ghosh
f2806d4ffa Work in progress global dedupe changes. 2013-03-19 20:13:44 +05:30
Moinak Ghosh
f8f23e5200 Major License text cleanup. 2013-03-07 20:26:48 +05:30
Moinak Ghosh
370e84f2be Update Changelog and bump version for 1.4 release. 
Add license text to Salsa20 files.
 2013-03-06 17:15:03 +05:30
Moinak Ghosh
efe5232cdc Add compatibility to decode old-format parallel hashes created with version 1.2. 
Bump archive version to 7 as parallel hashes are now merkle style hashes.
 2013-02-24 20:05:16 +05:30
Moinak Ghosh
6badbcaea7 Make global dedupe bits buildable and fix errors. 
Rename Adaptive compression type constants to avoid conflict with global constants.
 2013-02-17 21:05:40 +05:30
Moinak Ghosh
9983d79e62 Bump version and update changelog for 1.3.0 release. 
Fix issue #3.
 2013-01-29 21:42:54 +05:30
Moinak Ghosh
2da0d0950b Use BLAKE2 parallel version for single-chunk archives (whole file in one chunk). 
Set decompression threads correctly for single-chunk archives.
 2013-01-26 18:28:13 +05:30
Moinak Ghosh
26bb137257 Changes for generalized runtime SSE/AVX/XOP detection. 
Multi instruction set XXhash build with runtime selection.
Extend CPUID code to detect more instruction sets.
Add options for BLAKE2 hash.
Move GCC builtins into utils header.
Bump file format version number due to extended digest flags.
Add descriptions to digest list.
 2013-01-25 00:10:12 +05:30
Moinak Ghosh
16b1d9e7a3 Bump version, update Changelog and documentation for 1.2 release. 2013-01-03 23:40:21 +05:30
Moinak Ghosh
26a4f42506 Introduce strict compiler flags and fix scores of warnings/issues. 
Avoid different optimization flags for Dedupe sources.
Fix liberal mixing of uint64_t and int64_t (should all be uint64_t).
Fix corner case crash when decompressing.
 2012-12-27 23:06:48 +05:30
Moinak Ghosh
c2df666daf Major improvement to Delta2 encoding algorithm. 2012-12-18 23:32:55 +05:30
Moinak Ghosh
224fb529e9 Get rid of size_t in places where 64-bitness is assumed. 2012-12-09 10:15:06 +05:30
Moinak Ghosh
29b0d8fd7b Implement Adaptive Delta Encoding. 2012-12-05 00:09:47 +05:30
Moinak Ghosh
1f0c237495 Update Change and bump version for 1.1 release. 2012-11-26 20:27:09 +05:30
Moinak Ghosh
d054e0f713 Zlib optimizations. Use raw deflate streams to avoid unnecessary adler32. 
Change some function signatures to improve algo init function behavior.
Fix corner case dedupe bug in error handling flow.
Bump archive version signature.
 2012-11-22 21:02:50 +05:30
Moinak Ghosh
4d2e8ba644 Update Changelog for 1.0 release. 
Update version string and install doc.
Add Fixed-Block Deduplication tests.
 2012-11-09 21:42:56 +05:30
Moinak Ghosh
5b1a13480b Fix chunk flag setup when compression fails in adaptive mode. 
Prevent display of non-fatal errors during compression.
 2012-11-09 21:07:23 +05:30
Moinak Ghosh
f0c7ba87a3 Use Libbsc for XML data in adapt2 mode. 2012-11-04 21:13:26 +05:30
Moinak Ghosh
ddda9e5320 Bump version to 0.9.1 
Update Changelog.
 2012-10-24 18:46:27 +05:30
Moinak Ghosh
189d32ea52 Bump version to 0.9.0. 
Update Changelog.
 2012-10-20 23:10:05 +05:30
Moinak Ghosh
1eb8c94fed Implement HMAC verification for chunk data and header. 
Do not ask for decryption passwd twice.
 2012-10-18 22:55:41 +05:30
Moinak Ghosh
d13aad830e Implement HMAC Functionality. 
Refactor crypto utility functions in a separate file.
Add HMAC verification for file header.
Add a few extra input validation checks.
Include space in chunk header for HMAC.
 2012-10-17 23:32:35 +05:30
Moinak Ghosh
f2d7bea902 Support for chunk-level encryption using AES and Scrypt based PBE. 
Couple of minor fixes.
 2012-10-15 12:10:00 +05:30
Moinak Ghosh
3492949aff Bump version to 0.8.6 
Update Changelog
 2012-10-02 10:24:32 +05:30
Moinak Ghosh
d94be4e314 Update Changelog and bump version to 0.8.5. 2012-09-27 23:16:13 +05:30
Moinak Ghosh
e3befd9e16 Add support for Fixed-Block deduplication. 
More refactoring of symbol names.
 2012-09-16 11:12:58 +05:30
Moinak Ghosh
b9355a5dcc Reduce dedupe loop checks for slight speed edge. 
Beginnings of Fixed-block dedupe.
Update variable name for clarity.
 2012-09-15 11:14:58 +05:30
Moinak Ghosh
05a010a9dd Bump version to 0.8.1 
Update Changelog for 0.8.1 release.
 2012-09-07 19:38:36 +05:30