It doesn't make sense to use "git/somefile.h" in the
public git headers, as it's quite likely that projects
using them will have a git directory themselves. This
alters it, making the public headers look for headers
in the same directory they themselves are in.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Since re-using code from git.git proper is the quick way
forward, we need to list those who have given their consent
to do just that. The relicense permission is only valid for
use with libgit2, and only for GPLv2 + gcc-exception (as
specified by 'COPYING'.

Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Some versions of zlib don't have a deflateBound defined, so
we define it ourselves after including zlib.h.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Far from being complete, but its a good start.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This permits us to get the size of an opened file.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

We never want to accept a short read or a short write when
transferring data to or from a local file.

Either the entire read (or write) completes or the operation
failed and we will not recover gracefully from it.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

These are easily built off the standard C library functions memcpy
and memcmp.  By marking these inline we stand a good chance of
the C compiler replacing the entire thing with tight machine code,
because many compilers will actually inline a memcmp or memcpy when
the 3rd argument (the size) is a constant value.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

We only want hex digits to be read, any other character in the 8-bit
character set is invalid within an id string.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

By passing the name of the test function on the command line
we execute exactly that one test, and then exit successfully
if the test did not fail.  This permits multiple functions in
the same .c file, so they could be called from a shell script
or debugged independently externally.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

If we have more than one test build running we cannot use the same
file for each test case; instead we need to use a per-test path so
there aren't any collisions.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

We should never have a noreturn style function in the library
itself, as such a function would prevent the calling application
from handling error conditions the way it wants.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This is a horribly simple test suite that makes it fairly easy to
put together some basic function level unit tests on the library.
Its patterned somewhat after the test suite in git.git, but also
after the "Check" test library.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This way we can start to write IO code to read and write files in the
Git object database, but provide a hook to inject native Win32 APIs
instead so libgit2 can be ported to run natively on that platform.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This isn't the best idea I've head.  Pierre Habouzit was suggesting
a technique of assigning a unique integer to each commit and then
allocating storage out of auxiliary pools, using the commit's unique
integer to index into any auxiliary pool in constant time.  This way
both applications and the library can efficiently attach arbitrary
data onto a commit, such as rewritten parents, or flags, and have
them disconnected from the main object hash table.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This seems to be preferred on the mailing list.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This way only structures we ask the caller to allocate on their
call stack or which we want to allow them to use members from
are shown in the API docs.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Most read calls will use the small object format, as the
majority of the content within the database is very small
objects (under 20 KB when inflated).

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>