Do not return with EINVALIDREFNAME when trying to normalize MERGE_HEAD's
name.

Fixes the issue where object lookups were failing right after a pull on
an open repository.

Lists all the tag references in a repository using a custom callback.
Includes unit tests courtesy of Emeric Fermas <3

They were backtracking too deep into the filesystem on Linux, where the
tests were running directly on `tmp/`.

This is what Git uses by default for all deflating.

The new name is more cool.

Most tags will have a timestamp of whenever the code is running and
dealing with time and timezones is error-prone. Optimize for this case
by adding a function which causes the signature to be created with a
current timestamp.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

The parameters are given by '@param name' and not '@name'.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

Add checks to see if malloc failed when allocating the tag members and
signature members.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

git_repository_path() and git_repository_workdir() respectively return the path to the git repository and the working directory. Those paths are absolute and normalized.

We are now using a custom `strtol` implementation to make sure we're not
missing any overflow errors.

Weak tags (e.g. tags that point directly to a normal object instead of a
tag object) were failing to be packed.

Remove the check in git_tag_create_frombuffer as it's done by
tag_create already.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

These indicate an inconsistency in the repository which we've created,
so don't allow them.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

Don't blindly pass the target type to git_tag_type2string as it will
give an empty string on GIT_OBJ_ANY which would cause us to create an
invalid tag object.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>

Add several IDXENTRY flags that need to be checked in
order to properly implement update-index --refresh.

couldn't add new entry when inserting new one with `git_treebuilder_insert`.

We cannot assume that Redis is never going to return an error code; when
Reddit fails, we cannot crash our library, we need to handle the crash
gracefully.

Signed-off-by: Vicent Marti <tanoku@gmail.com>

The git test repository was holding a wrongly named tag reference ("very-simple") pointing at a tag named "e90810b".
This mistake (mine :-/ ) originates back to https://github.com/libgit2/libgit2/commit/9282e92

Whole credit goes to @tclem for having spotted this.

Streaming writes will no longer fail when writing to a backend that
doesn't support streaming writes but supports direct ones.
Now we create a fake stream on memory and then write it as a single
block using the backend `write` callback.

Creates a tree by scanning the index file. The method handles recursive
creation of trees for subdirectories and adds them to the parent tree.

Conflicts:
	include/git2/tag.h
	src/tag.c

Signed-off-by: Vicent Marti <tanoku@gmail.com>

To build libgit2 with sqlite support, waf configure should be run
with --with-sqlite

If we want debugging symbols, we most likely want them to point to the
right place. With -O2, gdb or valgrind may give wrong information.

Signed-off-by: Carlos Martín Nieto <cmn@elego.de>