src/pack-objects.c


Log

Author Commit Date CI Message
Carlos Martín Nieto a61fa4c0 2015-03-12T01:26:09 packbuilder: introduce git_packbuilder_insert_recur() This function recursively inserts the given object and any referenced ones. It can be thought of as a more general version of the functions to insert a commit or tree.
Carlos Martín Nieto 04a36fef 2014-10-11T15:48:29 pack-objects: fill a packbuilder from a walk Most use-cases for the object packer communicate in terms of commits which each side has. We already have an object to specify this relationship between commits, namely git_revwalk. By knowing which commits we want to pack and which the other side already has, we can perform similar optimisations to git, by marking each tree as interesting or uninteresting only once, and not sending those trees which we know the other side has.
Carlos Martín Nieto b63b76e0 2014-10-12T11:42:31 Reorder some khash declarations Keep the definitions in the headers, while putting the declarations in the C files. Putting the function definitions in headers causes them to be duplicated if you include two headers with them.
Edward Thomson 0f07d54b 2015-02-13T09:35:20 pack-objects: unlock the cache on integer overflow
Edward Thomson f1453c59 2015-02-12T12:19:37 Make our overflow check look more like gcc/clang's Make our overflow checking look more like gcc and clang's, so that we can substitute it out with the compiler instrinsics on platforms that support it. This means dropping the ability to pass `NULL` as an out parameter. As a result, the macros also get updated to reflect this as well.
Edward Thomson 190b76a6 2015-02-11T14:52:08 Introduce git__add_sizet_overflow and friends Add some helper functions to check for overflow in a type-specific manner.
Edward Thomson ec3b4d35 2015-02-11T11:20:05 Use `size_t` to hold size of arrays Use `size_t` to hold the size of arrays to ease overflow checking, lest we check for overflow of a `size_t` then promptly truncate by packing the length into a smaller type.
Edward Thomson 2884cc42 2015-02-11T09:39:38 overflow checking: don't make callers set oom Have the ALLOC_OVERFLOW testing macros also simply set_oom in the case where a computation would overflow, so that callers don't need to.
Edward Thomson 3603cb09 2015-02-10T23:13:49 git__*allocarray: safer realloc and malloc Introduce git__reallocarray that checks the product of the number of elements and element size for overflow before allocation. Also introduce git__mallocarray that behaves like calloc, but without the `c`. (It does not zero memory, for those truly worried about every cycle.)
Edward Thomson 392702ee 2015-02-09T23:41:13 allocations: test for overflow of requested size Introduce some helper macros to test integer overflow from arithmetic and set error message appropriately.
Philip Kelley fb591767 2014-06-07T12:51:48 Win32: Fix object::cache::threadmania test on x64
Russell Belfer af567e88 2014-05-12T10:44:13 Merge pull request #2334 from libgit2/rb/fix-2333 Be more careful with user-supplied buffers
Russell Belfer d2c4d1c6 2014-05-12T10:04:52 Merge pull request #2188 from libgit2/cmn/config-snapshot Configuration snapshotting
Russell Belfer 1e4976cb 2014-05-08T10:17:14 Be more careful with user-supplied buffers This adds in missing calls to `git_buf_sanitize` and fixes a number of places where `git_buf` APIs could inadvertently write NUL terminator bytes into invalid buffers. This also changes the behavior of `git_buf_sanitize` to NUL terminate a buffer if it can and of `git_buf_shorten` to do nothing if it can. Adds tests of filtering code with zeroed (i.e. unsanitized) buffer which was previously triggering a segfault.
Carlos Martín Nieto ac99d86b 2014-05-07T11:34:32 repository: introduce a convenience config snapshot method Accessing the repository's config and immediately taking a snapshot of it is a common operation, so let's provide a convenience function for it.
Carlos Martín Nieto 38d338b2 2014-04-26T18:15:39 pack-objects: always write out the status in write_one() Make sure we set the output parameter to a value.
Jacques Germishuys 48e60ae7 2014-04-21T11:23:29 Don't redefine the same callback types, their signatures may change
Carlos Martín Nieto 29c4cb09 2014-03-15T03:53:36 Use config snapshotting This way we can assume we have a consistent view of the config situation when we're looking up remote, branch, pack-objects, etc.
Carlos Martín Nieto a14aa1e7 2014-03-04T20:09:17 pack-objects: free memory safely A few fixes have accumulated in this area which have made the freeing of data a bit muddy. Make sure to free the data only when needed and once. When we are going to write a delta to the packfile, we need to free the data, otherwise leave it. The current version of the code mixes up the checks for po->data and po->delta_data.
Russell Belfer d9b04d78 2014-01-29T15:02:35 Reorganize zstream API and fix wrap problems There were some confusing issues mixing up the number of bytes written to the zstream output buffer with the number of bytes consumed from the zstream input. This reorganizes the zstream API and makes it easier to deflate an arbitrarily large input while still using a fixed size output.
Russell Belfer e9d5e5f3 2014-01-28T16:25:42 Some fixes for Windows x64 warnings
XTao 1cb5a811 2014-01-26T17:07:39 Fix write_object.
Edward Thomson 52a8a130 2014-01-06T16:41:12 Packbuilder contains its own zstream
Edward Thomson 0ade2f7a 2013-12-14T10:37:57 Packbuilder stream deflate instead of one-shot
Edward Thomson c6f26b48 2013-12-13T18:26:46 Refactor zlib for easier deflate streaming
Russell Belfer 7e3ed419 2013-12-11T16:56:17 Fix up some valgrind leaks and warnings
Russell Belfer 26c1cb91 2013-12-09T09:44:03 One more rename/cleanup for callback err functions
Russell Belfer c7b3e1b3 2013-12-06T15:42:20 Some callback error check style cleanups I find this easier to read...
Russell Belfer 25e0b157 2013-12-06T15:07:57 Remove converting user error to GIT_EUSER This changes the behavior of callbacks so that the callback error code is not converted into GIT_EUSER and instead we propagate the return value through to the caller. Instead of using the giterr_capture and giterr_restore functions, we now rely on all functions to pass back the return value from a callback. To avoid having a return value with no error message, the user can call the public giterr_set_str or some such function to set an error message. There is a new helper 'giterr_set_callback' that functions can invoke after making a callback which ensures that some error message was set in case the callback did not set one. In places where the sign of the callback return value is meaningful (e.g. positive to skip, negative to abort), only the negative values are returned back to the caller, obviously, since the other values allow for continuing the loop. The hardest parts of this were in the checkout code where positive return values were overloaded as meaningful values for checkout. I fixed this by adding an output parameter to many of the internal checkout functions and removing the overload. This added some code, but it is probably a better implementation. There is some funkiness in the network code where user provided callbacks could be returning a positive or a negative value and we want to rely on that to cancel the loop. There are still a couple places where an user error might get turned into GIT_EUSER there, I think, though none exercised by the tests.
Russell Belfer dab89f9b 2013-12-04T21:22:57 Further EUSER and error propagation fixes This continues auditing all the places where GIT_EUSER is being returned and making sure to clear any existing error using the new giterr_user_cancel helper. As a result, places that relied on intercepting GIT_EUSER but having the old error preserved also needed to be cleaned up to correctly stash and then retrieve the actual error. Additionally, as I encountered places where error codes were not being propagated correctly, I tried to fix them up. A number of those fixes are included in the this commit as well.
Linquize fb190bbb 2013-11-12T19:44:13 Fix warnings
Edward Thomson 1e60e5f4 2013-11-07T12:03:44 Allow callers to set mode on packfile creation
Edward Thomson cc2447da 2013-11-06T18:41:08 Add git_packbuilder_hash to query pack filename
Russell Belfer 948f00b4 2013-11-01T09:38:03 Merge pull request #1933 from libgit2/vmg/gcc-warnings Warnings for Windows x64 (MSVC) and GCC on Linux
Linquize 3343b5ff 2013-10-31T22:59:42 Fix warning on win64
Vicent Martí ac5e507c 2013-11-01T09:31:52 Merge pull request #1918 from libgit2/cmn/indexer-naming indexer: remove the stream infix
Carlos Martín Nieto a6154f21 2013-10-30T15:00:05 indexer: remove the stream infix It was there to keep it apart from the one which read in from a file on disk. This other indexer does not exist anymore, so there is no need for anything other than git_indexer to refer to it. While here, rename _add() function to _append() and _finalize() to _commit(). The former change is cosmetic, while the latter avoids talking about "finalizing", which OO languages use to mean something completely different.
Vicent Marti 04e0c2b2 2013-10-30T14:00:44 pack-objects: Depth can be negative
Vicent Martí 5c50f22a 2013-10-28T09:25:44 Merge pull request #1891 from libgit2/cmn/fix-thin-packs Add support for thin packs
Carlos Martín Nieto 0b33fca0 2013-10-02T13:39:35 indexer: fix thin packs When given an ODB from which to read objects, the indexer will attempt to inject the missing bases at the end of the pack and update the header and trailer to reflect the new contents.
Carlos Martín Nieto 51e82492 2013-10-03T16:54:25 pack: move the object header function here
Jameson Miller 5b188225 2013-10-02T13:45:32 Support cancellation in push operation This commit adds cancellation for the push operation. This work consists of: 1) Support cancellation during push operation - During object counting phase - During network transfer phase - Propagate GIT_EUSER error code out to caller 2) Improve cancellation support during fetch - Handle cancellation request during network transfer phase - Clear error string when cancelled during indexing 3) Fix error handling in git_smart__download_pack Cancellation during push is still only handled in the pack building and network transfer stages of push (and not during packbuilding).
Jameson Miller b176eded 2013-09-19T14:52:57 Initial Implementation of progress reports during push This adds the basics of progress reporting during push. While progress for all aspects of a push operation are not reported with this change, it lays the foundation to add these later. Push progress reporting can be improved in the future - and consumers of the API should just get more accurate information at that point. The main areas where this is lacking are: 1) packbuilding progress: does not report progress during deltafication, as this involves coordinating progress from multiple threads. 2) network progress: reports progress as objects and bytes are going to be written to the subtransport (instead of as client gets confirmation that they have been received by the server) and leaves out some of the bytes that are transfered as part of the push protocol. Basically, this reports the pack bytes that are written to the subtransport. It does not report the bytes sent on the wire that are received by the server. This should be a good estimate of progress (and an improvement over no progress).
Rémi Duraffort 050af8bb 2013-07-15T16:00:00 pack: fix memory leak in error path
Russell Belfer 1a42dd17 2013-05-31T14:13:11 Mutex init can fail It is obviously quite a serious problem if this happens, but mutex initialization can fail and we should detect it. It's a bit like a memory allocation failure, in that you're probably pretty screwed if this occurs, but at least we'll catch it.
Michael Schubert 563c19a9 2013-05-11T11:36:29 packbuilder: also write index in git_packbuilder_write git_packbuilder_write() used to write a packfile to the passed file path. Instead, ask for a destination directory and create both the packfile and an index, as most users probably do expect.
Xavier L 0b90366c 2013-04-23T12:27:38 Fixes indentation
Xavier L f0e37a8b 2013-04-23T12:22:29 Added function to insert commit into pack
Carlos Martín Nieto 0e040c03 2013-03-03T14:50:47 indexer: use a hashtable for keeping track of offsets These offsets are needed for REF_DELTA objects, which encode which object they use as a base, but not where it lies in the packfile, so we need a list. These objects are mostly from older packfiles, before OFS_DELTA was widely spread. The time spent in indexing these packfiles is greatly reduced, though remains above what git is able to do.
Philip Kelley b8b897bb 2013-02-11T08:28:53 Add git_push_options, to set packbuilder parallelism
Philip Kelley f4b86126 2013-01-22T08:21:08 A simple perf optimization in pack-objects.c
Edward Thomson 359fc2d2 2013-01-08T17:07:25 update copyrights
Justin Spahr-Summers a35b3864 2012-12-09T02:31:39 Always check the result of git_mutex_lock
Philip Kelley 613d5eb9 2012-11-28T11:42:37 Push! By schu, phkelley, and congyiwu, et al
Russell Belfer a8122b5d 2012-11-21T15:39:03 Fix warnings on Win64 build
Russell Belfer e120123e 2012-11-20T14:01:46 API review / update for tree.h
Ben Straub 2508cc66 2012-11-18T21:38:08 Rename ref and reflog apis for consistency
Vicent Martí aa1c3b58 2012-11-13T14:13:47 Merge pull request #1016 from arrbee/fix-checkout-dir-removal Update checkout with new strategies & behavior
Edward Thomson 603bee07 2012-11-12T19:22:49 Remove git_hash_ctx_new - callers now _ctx_init()
Edward Thomson d6fb0924 2012-11-05T12:37:15 Win32 CryptoAPI and CNG support for SHA1
Russell Belfer 757b4065 2012-11-09T14:01:44 Fix warnings and valgrind issues This fixes some various warnings that showed up in Travis and a couple uses of uninitialized memory and one memory leak.
Vicent Martí 942a7698 2012-11-05T06:54:34 Merge pull request #1034 from carlosmn/packbuilder-foreach Let the user grab the packfile as it's being written
Philip Kelley 41fb1ca0 2012-10-29T13:41:14 Reorganize transport architecture (squashed 3)
Carlos Martín Nieto 3dfed9cb 2012-10-31T10:26:04 packbuilder: add git_packbuilder_foreach Let the user get each object as a buffer+size pair so they can handle the packfile content as they need to.
Carlos Martín Nieto b4b935d8 2012-10-31T10:43:08 packbuilder: add accessors for the number of total and written objects
Philip Kelley b4491b99 2012-10-16T16:18:21 Incremental improvements to pack-objects logic Incorporate feedback for incr. improvements to pack-objects
Michael Schubert 0cf49e10 2012-10-09T21:49:48 fixup! gsoc-pack-objects WIP Use khash instead of git.git's hashing algorithm.
Michael Schubert 0a32dca5 2012-08-19T22:26:32 gsoc-pack-objects WIP