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bb742ede
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2011-09-19T01:54:32
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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.
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06c43821
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2011-07-09T02:37:16
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Remove unused methods
The direct-writes commit left some (slow) internals methods that
were no longer needed. These have been removed.
Also, the Reflog code was using the old `git_signature__write`, so
it has been rewritten to use a normal buffer and the new `writebuf`
signature writer. It's now slightly simpler and faster.
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afeecf4f
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2011-07-09T02:10:46
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odb: Direct writes are back
DIRECT WRITES ARE BACK AND FASTER THAN EVER. The streaming writer to the
ODB was an overkill for the smaller objects like Commit and Tags; most
of the streaming logic was taking too long.
This commit makes Commits, Tags and Trees to be built-up in memory, and
then written to disk in 2 pushes (header + data), instead of streaming
everything.
This is *always* faster, even for big files (since the git_filebuf class
still does streaming writes when the memory cache overflows). This is
also a gazillion lines of code smaller, because we don't have to
precompute the final size of the object before starting the stream (this
was kind of defeating the point of streaming, anyway).
Blobs are still written with full streaming instead of loading them in
memory, since this is still the fastest way.
A new `git_buf` class has been added. It's missing some features, but
it'll get there.
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f7e59c4d
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2011-06-01T18:34:21
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index: Change the memory management for repo indexes
The `git_repository_index` call now returns a brand new index that must
be manually free'd.
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720d5472
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2011-04-02T12:42:04
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Change `parse` methods to const buffer
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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72a3fe42
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2011-03-18T19:38:49
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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>
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6b2a1941
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2011-03-12T23:09:16
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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.
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f335b42c
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2011-03-05T01:17:59
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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>
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f7fcb0dd
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2011-03-04T15:10:16
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Don't use non-int bit fields
They are not standard. MSVC complains about them. And that's not good.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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584f49a5
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2011-03-01T01:37:28
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Fix several issues with refcounting
- Added several missing reference increases
- Add new destructor to the repository that does not GC the objects
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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48c27f86
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2011-02-28T16:51:17
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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>
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d2d6912e
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2011-02-26T13:56:16
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Refactored the opening and the initialization of a repository.
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2f8a8ab2
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2011-01-29T01:56:25
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Refactor reference parsing code
Several changes have been committed to allow the user to create
in-memory references and write back to disk. Peeling of symbolic
references has been made explicit. Added getter and setter methods for
all attributes on a reference. Added corresponding documentation.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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9282e921
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2010-12-27T20:34:19
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Merge nulltoken's reference parsing code
All the commits have been squashed into a single one before refactoring
the final code, to keep everything tidy.
Individual commit messages are as follows:
Added repository reference looking up functionality placeholder.
Added basic reference database definition and caching infrastructure.
Removed useless constant.
Added GIT_EINVALIDREFNAME error and description. Added missing description for GIT_EBAREINDEX.
Added GIT_EREFCORRUPTED error and description.
Added GIT_ETOONESTEDSYMREF error and description.
Added resolving of direct and symbolic references.
Prepared the packed-refs parsing.
Added parsing of the packed-refs file content.
When no loose reference has been found, the full content of the packed-refs file is parsed. All of the new (i.e. not previously parsed as a loose reference) references are eagerly stored in the cached references storage.
The method packed_reference_file__parse() is in deer need of some refactoring. :-)
Extracted to a method the parsing of the peeled target of a tag.
Extracted to a method the parsing of a standard packed ref.
Fixed leaky removal of the cached references.
Ensured that a previously parsed packed reference isn't returned if a more up-to-date loose reference exists.
Enhanced documentation of git_repository_reference_lookup().
Moved some refs related constants from repository.c to refs.h.
Made parsing of a packed tag reference more robust.
Updated git_repository_reference_lookup() documentation.
Added some references to the test repository.
Added some tests covering tag references looking up.
Added some tests covering symbolic and head references looking up.
Added some tests covering packed references looking up.
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e52ed7a5
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2011-01-03T22:34:27
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Split object methods from repository.c
All the relevant git_object methods have been moved to object.c
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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44908fe7
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2010-12-06T23:03:16
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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>
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6fd195d7
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2010-11-02T18:42:42
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Change git_repository initialization to use a path
The constructor to git_repository is now called
'git_repository_open(path)'
and takes a path to a git repository instead of an existing ODB object.
Unit tests have been updated accordingly and the two test repositories
have been merged into one.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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58519018
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2010-10-28T02:07:18
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Fix internal memory management on the library
String mememory is now managed in a much more sane manner.
Fixes include:
- git_person email and name is no longer limited to 64 characters
- git_tree_entry filename is no longer limited to 255 characters
- raw objects are properly opened & closed the minimum amount of
times required for parsing
- unit tests no longer leak
- removed 5 other misc memory leaks as reported by Valgrind
- tree writeback no longer segfaults on rare ocassions
The git_person struct is no longer public. It is now managed by the
library, and getter methods are in place to access its internal
attributes.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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d45b4a9a
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2010-09-20T21:39:11
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Add support for in-memory objects
All repository objects can now be created from scratch in memory using
either the git_object_new() method, or the corresponding git_XXX_new()
for each object.
So far, only git_commits can be written back to disk once created in
memory.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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0c3596f1
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2010-09-20T01:57:53
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Add setter methods & write support for git_commit
All the required git_commit_set_XXX methods have been implemented; all
the attributes of a commit object can now be modified in-memory.
The new method git_object_write() automatically writes back the
in-memory changes of any object to the repository. So far it only
supports git_commit objects.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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e802d8cc
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2010-09-19T03:53:57
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Implement internal methods to write on sources
The new 'git__source_printf' does an overflow-safe printf on a source
bfufer.
The new 'git__source_write' does an overflow-safe byte write on a source
buffer.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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f49a2e49
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2010-09-19T03:21:06
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Give object structures more descriptive names
The 'git_obj' structure is now called 'git_rawobj', since
it represents a raw object read from the ODB.
The 'git_repository_object' structure is now called 'git_object',
since it's the base object class for all objects.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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a7a7ddbe
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2010-09-18T19:16:04
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Add generic methods for object writeback
git_repository_object has now several internal methods to write back the
object information in the repository.
- git_repository__dbo_prepare_write()
Prepares the DBO object to be modified
- git_repository__dbo_write()
Writes new bytes to the DBO object
- git_repository__dbo_writeback()
Writes back the changes to the repository
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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f2408cc2
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2010-08-12T19:59:32
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Fix object handling in git_repository
All loaded objects through git_repository_lookup are properly parsed &
free'd on failure.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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3315782c
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2010-08-08T14:12:17
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Redesigned the walking/object lookup interface
The old 'git_revpool' object has been removed and
split into two distinct objects with separate
functionality, in order to have separate methods for
object management and object walking.
* A new object 'git_repository' does the high-level
management of a repository's objects (commits, trees,
tags, etc) on top of a 'git_odb'.
Eventually, it will also manage other repository
attributes (e.g. tag resolution, references, etc).
See: src/git/repository.h
* A new external method
'git_repository_lookup(repo, oid, type)'
has been added to the 'git_repository' API.
All object lookups (git_XXX_lookup()) are now
wrappers to this method, and duplicated code
has been removed. The method does automatic type
checking and returns a generic 'git_revpool_object'
that can be cast to any specific object.
See: src/git/repository.h
* The external methods for object parsing of repository
objects (git_XXX_parse()) have been removed.
Loading objects from the repository is now managed
through the 'lookup' functions. These objects are
loaded with minimal information, and the relevant
parsing is done automatically when the user requests
any of the parsed attributes through accessor methods.
An attribute has been added to 'git_repository' in
order to force the parsing of all the repository objects
immediately after lookup.
See: src/git/commit.h
See: src/git/tag.h
See: src/git/tree.h
* The previous walking functionality of the revpool
is now found in 'git_revwalk', which does the actual
revision walking on a repository; the attributes
when walking through commits in a database have been
decoupled from the actual commit objects.
This increases performance when accessing commits
during the walk and allows to have several
'git_revwalk' instances working at the same time on
top of the same repository, without having to load
commits in memory several times.
See: src/git/revwalk.h
* The old 'git_revpool_table' has been renamed to
'git_hashtable' and now works as a generic hashtable
with support for any kind of object and custom hash
functions.
See: src/hashtable.h
* All the relevant unit tests have been updated, renamed
and grouped accordingly.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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