The following (critical) fixes have been backported to this
maintenance release. All users of the library are encouraged to
update.
b4d00c1 array: mark the array to grow as volatile
f3f9dc0 revwalk: remove preallocation of the uninteresting commits
440a87a Add unit test to test add section without lf at EOF
190fe07 Make sure \n is at the end of config file before a new section is written
ace6567 Properly report failure when expanding a packfile
f8b4093 refspec: support asterisks in the middle of a pattern
0aa6b7e refspec: short-circuit non-pattern refspecs on transform
18cf389 Include libssh2.h before git2.h (transport.h)
dbcb751 Fix git_cred_ssh_interactive_callback signature
0e59463 netops: error out on url without a path
12dcc6e ssh: libssh2_channel_write() behaves like send()
38ddf22 Round up pool alloc sizes for alignment
63ee946 ssh: always declare the libssh2 types
aa1b62b ssh: create the right callback signature based on build options
1d43005 ssl: init only once without threads
5838338 Merge pull request #2494 from libgit2/cmn/treebuilder-set-attribute
b692568 treebuilder: set the attributes before sorting and inserting
0.21.0:
Final release of 0.21.0 after two release candidates. Go get it.
Changed since last version:
Top-level Improvements
We've dropped support for Windows XP. We're evil like that.
Added a new config snapshotting API to fix race issues when
different applications (e.g. Git and a libgit2 client)
access the same repository simultaneously.
Added reflog support to all APIs that could alter a reference.
These APIs gained two new parameters: const git_signature
*signature and const char *log_message to control what is
written to the reflog. Passing NULL for these values will
use defaults from the user's configuration.
Avoided race conditions when updating references. Any
function that alters a reference will check if the underlying
reference data has been changed since libgit2 looked up
the data and cancel the operation with error GIT_EMODIFIED
if the reference has been changed.
Converted all APIs that output string data to use git_buf
objects for the return value. Previously these would
typically take a pointer to an output buffer and a size,
and generate an error if the output buffer was not large
enough.
Added standard git_<object>_init_options functions to
initialize options structures when static initialization
is not possible, and renamed options structures to standard
git_<object>_options (replacing _opts suffix used in some
places)
Improved use of const on pointers in many APIs (which may
affect some bindings).
Replaced use of oid with simply id for references to git_oid
value.s
Previously, when a callback function returned an error
value (i.e. non-zero), libgit2 converted it to GIT_EUSER
for the parent function's return value. Now, libgit2 tries
to pass through the callback's return value all the way
back to the caller. To disambiguate between an error
generated by the callback vs. an error generated internally
by libgit2, a callback can still explicitly return the
GIT_EUSER value -- libgit2 will never use that error code
for errors that it raises.
All inline functions were eliminated from the public libgit2
API
Removed all Apache licensed code from library
CRLF handling is much improved in the platforms where it
matters (Windows)
0d96718724