Welcome to yet another libgit2 release, this one being the
biggest we've shipped so far. Highlights on this release
include diff, branches, notes and submodules support. The new
diff API is shiny and powerful. Check it out.
Apologies, one more time, to all the early adopters for the
breaking API changes. We've been iterating on the error
handling for the library until we reached its current state,
which we believe it's significantly more usable both for normal
users and for developers of bindings to other languages.
Also, we've renamed a few legacy calls to ensure that the whole
external API uses a consistent naming scheme.
As always, check the API docs for the full list of new API calls
and backwards-incompatible changes.
http://libgit2.github.com/libgit2/
Changelog of new features follows:
Attributes:
- Added function macros to check attribute values instead of having
to manually compare them
- Added support for choosing the attribute loading order (workdir files
vs index) and to skip the systems' default `.gitattributes`
- Fixed issues when fetching attribute data on bare repositories
Blob:
- Added support for creating blobs from any file on disk (not
restricted to the repository's working directory)
- Aded support for smudge filters when writing blobs to the ODB
- So far only CRLF normalization is available
Branches:
- Added a high-level branch API:
- git_branch_create
- git_branch_delete
- git_branch_list
- git_branch_move
Commit:
- Commit messages are now filtered to match Git rules (stripping
comments and adding proper whitespacing rules)
Config:
- Added support for setting and getting multivars
- Added `git_config_get_mapped` to map the value of a config
variable based on its defaults
Diff:
- Added full diff API:
- tree to tree
- index to tree
- workdir to index
- workdir to tree
- blob to blob
- Added helper functions to print the diffs as valid patchfiles
Error handling:
- New design for the error handling API, taking into consideration
the requirements of dynamic languages
Indexer:
- Added streaming packfile indexer
Merge:
- Added support for finding the merge base between two commits
Notes:
- Full git-notes support:
- git_note_read
- git_note_message/git_note_oid
- git_note_create
- git_note_remove
- git_note_free
- git_note_foreach
References:
- Added `git_reference_name_to_oid` helper to resolve
a reference to its final OID
- Added `git_reference_cmp` to compare two references with
a stable order
Remotes:
- Added support for writing and saving remotes
- `git_remote_add`
- `git_remote_save`
- Setters for all the attributes of a remote
- Switched remote download to the new streaming packfile indexer
- Fixed fetch on HTTP and Git under Windows
- Added `git_remote_supported_url` helper to check if a protocol
can be accessed by the library
- Added `git_remote_list`
Repository:
- Made `git_repository_open` smarter when finding the `.git` folder.
- Added `git_repository_open_ext` with extra options when
opening a repository
Revwalk:
- Added support for pushing/hiding several references through a glob
- Added helper to push/hide the current HEAD to the walker
- Added helper to push/hide a single reference to the walker
Status:
- Greatly improved Status implementation using the new `diff` code
as a backend
Submodules:
- Added a partial submodules API to get information about a
submodule and list all the submodules in a repository
- git_submodule_foreach
- git_submodule_lookup
Tag:
- Added `git_tag_peel` helper to peel a tag to its pointed object
- Tag messages are now filtered to match Git rules (stripping comments
and adding proper whitespacing rules)
Tree:
- Killed the old `git_tree_diff` API, which is replaced by the
new diff code.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Local fetch isn't implemented yet. Don't segfault on call, but set a
dummy for negotiate_fetch and terminate gracefully.
Reported-by: Brad Harder <bch@methodlogic.net>
Creating a workdir iterator on a directory with absolutely
no files was returning an error (GIT_ENOTFOUND) instead of
an iterator for nothing. This fixes that and includes two
new tests that cover that case.
GProf shows `git_text_gather_stats` as the most expensive call
in large diffs. The function calculates a lot of information
that is not actually used and does not do so in a optimal
order. This introduces a tuned `git_buf_is_binary` function
that executes the same algorithm in a fraction of the time.
There was a bug where tracked files inside directories that were
inside ignored directories where not being found by status. To
make that a little clearer, if you have a .gitignore with:
ignore/
And then have the following files:
ignore/dir/tracked <-- actually a tracked file
ignore/dir/untracked <-- should be ignored
Then we would show the tracked file as being removed (because
when we got the to contained item "dir/" inside the ignored
directory, we decided it was safe to skip -- bzzt, wrong!).
This update is much more careful about checking that we are
not skipping over any prefix of a tracked item, regardless of
whether it is ignored or not.
As documented in diff.c, this commit does create behavior that
still differs from core git with regards to the handling of
untracked files contained inside ignored directories. With
libgit2, those files will just not show up in status or diff.
With core git, those files don't show up in status or diff
either *unless* they are explicitly ignored by a .gitignore
pattern in which case they show up as ignored files.
Needless to say, this is a local behavior difference only, so
it should not be important and (to me) the libgit2 behavior
seems more consistent.
