thodg/libgit2/src/blob.c

src/blob.c

Log

Author Commit Date CI Message
Russell Belfer 3f27127d 2013-04-16T11:51:02 Simplify object table parse functions This unifies the object parse functions into one signature that takes an odb_object.
Russell Belfer 78606263 2013-04-15T00:05:44 Add callback to git_objects_table This adds create and free callback to the git_objects_table so that more of the creation and destruction of objects can be table driven instead of using switch statements. This also makes the semantics of certain object creation functions consistent so that we can make better use of function pointers. This also fixes a theoretical error case where an object allocation fails and we end up storing NULL into the cache.
Russell Belfer badd85a6 2013-04-10T17:10:17 Use git_odb_object_data/_size whereever possible This uses the odb object accessors so we can change the internals more easily...
Vicent Marti 8842c75f 2013-04-03T22:30:07 What has science done.
Russell Belfer 83cc70d9 2013-04-19T12:48:33 Move odb_backend implementors stuff into git2/sys This moves some of the odb_backend stuff that is related to the internals of an odb_backend implementation into include/git2/sys. Some of the stuff related to streaming I left in include/git2 because it seemed like it would be reasonably needed by a normal user who wanted to stream objects into and out of the ODB. Also, I added APIs for traversing the list of backends so that some of the tests would not need to access ODB internals.
Russell Belfer 3658e81e 2013-03-25T14:20:07 Move crlf conversion into buf_text This adds crlf/lf conversion functions into buf_text with more efficient implementations that bypass the high level buffer functions. They attempt to minimize the number of reallocations done and they directly write the buffer data as needed if they know that there is enough memory allocated to memcpy data. Tests are added for these new functions. The crlf.c code is updated to use the new functions. Removed the include of buf_text.h from filter.h and just include it more narrowly in the places that need it.
Russell Belfer 9733e80c 2013-03-22T10:44:45 Add has_cr_in_index check to CRLF filter This adds a check to the drop_crlf filter path to check it the file in the index already has a CR in it, in which case this will not drop the CRs from the workdir file contents. This uncovered a "bug" in `git_blob_create_fromworkdir` where the full path to the file was passed to look up the attributes instead of the relative path from the working directory root. This meant that the check in the index for a pre-existing entry of the same name was failing.
Edward Thomson 359fc2d2 2013-01-08T17:07:25 update copyrights
Russell Belfer f2b7f7a6 2013-01-07T15:44:22 Share git_diff_blobs/git_diff_blob_to_buffer code This moves the implementation of these two APIs into common code that will be shared between the two. Also, this adds tests for the `git_diff_blob_to_buffer` API. Lastly, this adds some extra `const` to a few places that can use it.
nulltoken a3337f10 2012-12-17T15:15:20 blob: introduce git_blob_is_binary()
Vicent Marti cfbe4be3 2012-11-17T19:54:47 More external API cleanup Conflicts: src/branch.c tests-clar/refs/branches/create.c
nulltoken cfa6465c 2012-10-22T15:08:09 blob: do not create temp files in the current path - make sure temporary streamed blobs are created under the .git/objects folder and not in the current path, whatever it is. - do not make the name of the temp file depend on the hintpath.
Michael Schubert 13faa77c 2012-09-13T17:57:45 Fix -Wuninitialized warning
Vicent Marti 412293dc 2012-09-11T23:38:16 Merge branch 'diff-crlf-filters' into development
Vicent Marti c859184b 2012-09-11T23:05:24 Properly handle p_reads
nulltoken ced8d142 2012-08-22T11:30:55 errors: deploy GIT_EBAREREPO usage
nulltoken cd445767 2012-05-27T15:00:05 blob: add git_blob_create_fromchunks()
nulltoken 6ca9643c 2012-05-06T21:00:20 blob: Add git_blob_create_fromdisk() This function will create blobs in the object database from files anywhere on the filesystem. This can be run against bare and non-bare repositories.
Russell Belfer 2bc8fa02 2012-04-17T10:14:24 Implement git_pool paged memory allocator This adds a `git_pool` object that can do simple paged memory allocation with free for the entire pool at once. Using this, you can replace many small allocations with large blocks that can then cheaply be doled out in small pieces. This is best used when you plan to free the small blocks all at once - for example, if they represent the parsed state from a file or data stream that are either all kept or all discarded. There are two real patterns of usage for `git_pools`: either for "string" allocation, where the item size is a single byte and you end up just packing the allocations in together, or for "fixed size" allocation where you are allocating a large object (e.g. a `git_oid`) and you generally just allocation single objects that can be tightly packed. Of course, you can use it for other things, but those two cases are the easiest.
Russell Belfer 0d0fa7c3 2012-03-16T15:56:01 Convert attr, ignore, mwindow, status to new errors Also cleaned up some previously converted code that still had little things to polish.
Russell Belfer deafee7b 2012-03-14T17:36:15 Continue error conversion This converts blob.c, fileops.c, and all of the win32 files. Also, various minor cleanups throughout the code. Plus, in testing the win32 build, I cleaned up a bunch (although not all) of the warnings with the 64-bit build.
Russell Belfer e1de726c 2012-03-12T22:55:40 Migrate ODB files to new error handling This migrates odb.c, odb_loose.c, odb_pack.c and pack.c to the new style of error handling. Also got the unix and win32 versions of map.c. There are some minor changes to other files but no others were completely converted. This also contains an update to filebuf so that a zeroed out filebuf will not think that the fd (== 0) is actually open (and inadvertently call close() on fd 0 if cleaned up). Lastly, this was built and tested on win32 and contains a bunch of fixes for the win32 build which was pretty broken.
Russell Belfer ce49c7a8 2012-03-02T15:09:40 Add filter tests and fix some bugs This adds some initial unit tests for file filtering and fixes some simple bugs in filter application.
Vicent Martí 47a899ff 2012-03-01T21:19:51 filter: Beautiful refactoring Comments soothe my soul.
Vicent Martí 27950fa3 2012-02-29T01:26:03 filter: Add write-to CRLF filter
Vicent Martí 44b1ff4c 2012-02-27T04:31:05 filter: Apply filters before writing a file to the ODB Initial implementation. The relevant code is in `blob.c`: the blob write function has been split into smaller functions. - Directly write a file to the ODB in streaming mode - Directly write a symlink to the ODB in direct mode - Apply a filter, and write a file to the ODB in direct mode When trying to write a file, we first call `git_filter__load_for_file`, which populates a filters array with the required filters based on the filename. If no filters are resolved to the filename, we can write to the ODB in streaming mode straight from disk. Otherwise, we load the whole file in memory and use double-buffering to apply the filter chain. We finish by writing the file as a whole to the ODB.
Russell Belfer 1ec1de6d 2012-02-23T11:15:45 Fix warnings about type conversion on win32
schu 5e0de328 2012-02-13T17:10:24 Update Copyright header Signed-off-by: schu <schu-github@schulog.org>
Vicent Martí f19e3ca2 2012-02-10T20:16:42 odb: Proper symlink hashing
Russell Belfer 97769280 2011-11-30T11:27:15 Use git_buf for path storage instead of stack-based buffers This converts virtually all of the places that allocate GIT_PATH_MAX buffers on the stack for manipulating paths to use git_buf objects instead. The patch is pretty careful not to touch the public API for libgit2, so there are a few places that still use GIT_PATH_MAX. This extends and changes some details of the git_buf implementation to add a couple of extra functions and to make error handling easier. This includes serious alterations to all the path.c functions, and several of the fileops.c ones, too. Also, there are a number of new functions that parallel existing ones except that use a git_buf instead of a stack-based buffer (such as git_config_find_global_r that exists alongsize git_config_find_global). This also modifies the win32 version of p_realpath to allocate whatever buffer size is needed to accommodate the realpath instead of hardcoding a GIT_PATH_MAX limit, but that change needs to be tested still.
Vicent Marti 45e79e37 2011-11-26T04:59:21 Rename all `_close` methods There's no difference between `_free` and `_close` semantics: keep everything with the same name to avoid confusions.
Vicent Marti 9462c471 2011-11-25T08:16:26 repository: Change ownership semantics The ownership semantics have been changed all over the library to be consistent. There are no more "borrowed" or duplicated references. Main changes: - `git_repository_open2` and `3` have been dropped. - Added setters and getters to hotswap all the repository owned objects: `git_repository_index` `git_repository_set_index` `git_repository_odb` `git_repository_set_odb` `git_repository_config` `git_repository_set_config` `git_repository_workdir` `git_repository_set_workdir` Now working directories/index files/ODBs and so on can be hot-swapped after creating a repository and between operations. - All these objects now have proper ownership semantics with refcounting: they all require freeing after they are no longer needed (the repository always keeps its internal reference). - Repository open and initialization has been updated to keep in mind the configuration files. Bare repositories are now always detected, and a default config file is created on init. - All the tests affected by these changes have been dropped from the old test suite and ported to the new one.
Vicent Marti 3286c408 2011-10-28T14:51:13 global: Properly use `git__` memory wrappers Ensure that all memory related functions (malloc, calloc, strdup, free, etc) are using their respective `git__` wrappers.
Vicent Marti bb742ede 2011-09-19T01:54:32 Cleanup legal data 1. The license header is technically not valid if it doesn't have a copyright signature. 2. The COPYING file has been updated with the different licenses used in the project. 3. The full GPLv2 header in each file annoys me.
Sebastian Schuberth 26e74c6a 2011-09-08T14:21:17 Fix some random size_t vs. int conversion warnings
Vicent Marti f79026b4 2011-07-04T11:43:34 fileops: Cleanup Cleaned up the structure of the whole OS-abstraction layer. fileops.c now contains a set of utility methods for file management used by the library. These are abstractions on top of the original POSIX calls. There's a new file called `posix.c` that contains emulations/reimplementations of all the POSIX calls the library uses. These are prefixed with `p_`. There's a specific posix file for each platform (win32 and unix). All the path-related methods have been moved from `utils.c` to `path.c` and have their own prefix.
schu 7b608b3b 2011-06-26T17:57:40 git_blob_create_fromfile: remove old code Remove call of gitfo_size, since we call gitfo_lstat anyway; remove some old workaround code for gitfo_read, which is obsolete now. Signed-off-by: schu <schu-github@schulog.org>
Carlos Martín Nieto 4cea2f03 2011-06-20T17:53:21 Stat files with full pathnames Call gitfo_lstat with the full pathname instead of the relative one, which fails in case the current working directory is different from the workdir. Signed-off-by: Carlos Martín Nieto <cmn@elego.de>
nulltoken a64bf21b 2011-06-15T16:05:33 blob: Fix git_blob_create_fromfile()
Vicent Marti ae496955 2011-06-08T17:03:41 windows: Fix Symlink issues Handle Symlinks if they can be handled in Win32. This is not even compiled. Needs review. The lstat implementation is modified from core Git. The readlink implementation is modified from PHP.
Jakob Pfender b74c867a 2011-06-07T11:11:09 blob: Stat path inside git_blob_create_fromfile 00582bc introduced a change that required the caller of git_blob_create_fromfile() to pass a struct stat with the stat information for the file. Several developers pointed out that this would make life hard for the bindings developers as struct stat isn't widely supported by other languages. Make git_blob_create_fromfile() stat the path itself, eliminating the need for the file to be stat'ed by the caller. This makes index_init_entry() more costly as the file will be stat'ed twice but makes life easier for everyone else.
Jakob Pfender 4d7905c5 2011-05-25T16:04:29 blob: Require stat information for git_blob_create_fromfile() In order to be able to write symlinks with git_blob_create_fromfile(), we need to check whether the file to be written is a symbolic link or not. Since the calling function of git_blob_create_fromfile() is likely to have stated the file before calling, we make it pass the stat. The reason for this is that writing symbolic link blobs is significantly different from writing ordinary files - we do not want to open the link destination but instead want to write the link itself, regardless of whether it exists or not. Previously, index_init_entry() used to error out if the file to be added was a symlink that pointed to a nonexistent file. Fix this behaviour to add the file regardless of whether it exists. This mimics git.git's behaviour.
Vicent Martí 1e9b7a09 2011-06-02T15:12:37 Merge pull request #144 from nordsturm/fix_fakewstream Fix fake wstream write
Vicent Marti adef9922 2011-05-23T20:33:20 blob: Reword errors
Jakob Pfender 91369100 2011-05-17T16:50:49 blob.c: Move to new error handling mechanism
schu cbcaf0c0 2011-05-11T12:09:40 Move blob.c to the new error handling Signed-off-by: schu <schu-github@schulog.org>
Sergey Nikishin 1d1735fe 2011-04-24T18:33:50 Add error processing in git_blob_create_frombuffer()
Vicent Marti 2571cc3c 2011-04-15T20:32:31 Close file descriptor when writing a blob
Vicent Marti 72a3fe42 2011-03-18T19:38:49 I broke your bindings Hey. Apologies in advance -- I broke your bindings. This is a major commit that includes a long-overdue redesign of the whole object-database structure. This is expected to be the last major external API redesign of the library until the first non-alpha release. Please get your bindings up to date with these changes. They will be included in the next minor release. Sorry again! Major features include: - Real caching and refcounting on parsed objects - Real caching and refcounting on objects read from the ODB - Streaming writes & reads from the ODB - Single-method writes for all object types - The external API is now partially thread-safe The speed increases are significant in all aspects, specially when reading an object several times from the ODB (revwalking) and when writing big objects to the ODB. Here's a full changelog for the external API: blob.h ------ - Remove `git_blob_new` - Remove `git_blob_set_rawcontent` - Remove `git_blob_set_rawcontent_fromfile` - Rename `git_blob_writefile` -> `git_blob_create_fromfile` - Change `git_blob_create_fromfile`: The `path` argument is now relative to the repository's working dir - Add `git_blob_create_frombuffer` commit.h -------- - Remove `git_commit_new` - Remove `git_commit_add_parent` - Remove `git_commit_set_message` - Remove `git_commit_set_committer` - Remove `git_commit_set_author` - Remove `git_commit_set_tree` - Add `git_commit_create` - Add `git_commit_create_v` - Add `git_commit_create_o` - Add `git_commit_create_ov` tag.h ----- - Remove `git_tag_new` - Remove `git_tag_set_target` - Remove `git_tag_set_name` - Remove `git_tag_set_tagger` - Remove `git_tag_set_message` - Add `git_tag_create` - Add `git_tag_create_o` tree.h ------ - Change `git_tree_entry_2object`: New signature is `(git_object **object_out, git_repository *repo, git_tree_entry *entry)` - Remove `git_tree_new` - Remove `git_tree_add_entry` - Remove `git_tree_remove_entry_byindex` - Remove `git_tree_remove_entry_byname` - Remove `git_tree_clearentries` - Remove `git_tree_entry_set_id` - Remove `git_tree_entry_set_name` - Remove `git_tree_entry_set_attributes` object.h ------------ - Remove `git_object_new - Remove `git_object_write` - Change `git_object_close`: This method is now *mandatory*. Not closing an object causes a memory leak. odb.h ----- - Remove type `git_rawobj` - Remove `git_rawobj_close` - Rename `git_rawobj_hash` -> `git_odb_hash` - Change `git_odb_hash`: New signature is `(git_oid *id, const void *data, size_t len, git_otype type)` - Add type `git_odb_object` - Add `git_odb_object_close` - Change `git_odb_read`: New signature is `(git_odb_object **out, git_odb *db, const git_oid *id)` - Change `git_odb_read_header`: New signature is `(size_t *len_p, git_otype *type_p, git_odb *db, const git_oid *id)` - Remove `git_odb_write` - Add `git_odb_open_wstream` - Add `git_odb_open_rstream` odb_backend.h ------------- - Change type `git_odb_backend`: New internal signatures are as follows int (* read)(void **, size_t *, git_otype *, struct git_odb_backend *, const git_oid *) int (* read_header)(size_t *, git_otype *, struct git_odb_backend *, const git_oid *) int (* writestream)(struct git_odb_stream **, struct git_odb_backend *, size_t, git_otype) int (* readstream)( struct git_odb_stream **, struct git_odb_backend *, const git_oid *) - Add type `git_odb_stream` - Add enum `git_odb_streammode` Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 6b2a1941 2011-03-12T23:09:16 Fix the retarded object interdependency system It's no longer retarded. All object interdependencies are stored as OIDs instead of actual objects. This should be hundreds of times faster, specially on big repositories. Heck, who knows, maye it doesn't even segfault -- wouldn't that be awesome? What has changed on the API? `git_commit_parent`, `git_commit_tree`, `git_tag_target` now return their values through a pointer-to-pointer, and have an error code. `git_commit_set_tree` and `git_tag_set_target` now return an error code and may fail. `git_repository_free__no_gc` has been deprecated because it's stupid. Since there are no longer any interdependencies between objects, we don't need internal reference counting, and GC never fails or double-free's pointers. `git_object_close` now does a very sane thing: marks an object as unused. Closed objects will be eventually free'd from the object cache based on LRU. Please use `git_object_close` from the garbage collector `destroy` method on your bindings. It's 100% safe. `git_repository_gc` is a new method that forces a garbage collector pass through the repo, to free as many LRU objects as possible. This is useful if we are running out of memory.
Vicent Marti 3490188b 2011-03-05T13:29:50 Change the return type of `git_blob_rawcontent` Should return `void *` for raw bytes. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti f335b42c 2011-03-05T01:17:59 Fix segmentation fault when freeing a repository Disable garbage collection of cross-references to prevent double-freeing. Internal reference management is now done with a separate method. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 48c27f86 2011-02-28T16:51:17 Implement reference counting for git_objects All `git_object` instances looked up from the repository are reference counted. User is expected to use the new `git_object_close` when an object is no longer needed to force freeing it. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 44908fe7 2010-12-06T23:03:16 Change the library include file Libgit2 is now officially include as #include "<git2.h>" or indidividual files may be included as #include <git2/index.h> Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti d12299fe 2010-12-03T22:22:10 Change include structure for the project The maze with include dependencies has been fixed. There is now a global include: #include <git.h> The git_odb_backend API has been exposed. Signed-off-by: Vicent Marti <tanoku@gmail.com>
nulltoken 6f02c3ba 2010-12-05T20:18:56 Small source code readability improvements. Replaced magic number "0" with GIT_SUCCESS constant wherever it made sense.
Vicent Marti 30b171a1 2010-11-20T17:37:32 Change blob API to return temp refs to the content If the user wants permanent references, he can duplicate the temporary one manually. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 111e3622 2010-11-16T03:24:39 Fix freeing blob objects from the ODB The internal contents of the blob were being free'd but not the blob object itself. Signed-off-by: Vicent Marti <tanoku@gmail.com>
Vicent Marti 237da401 2010-11-14T22:06:10 Add support for blob files Blob files can now be loaded from the repository like all the other base Git types. Signed-off-by: Vicent Marti <tanoku@gmail.com>
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