This makes sure that git_futils_mkdir always skips over the root
directory at a minimum, even on platforms where the root is not
simply '/'. Also, this removes the GIT_WIN32 ifdef in favor of
making EACCES as a potentially recoverable error on all platforms.
We ran into an issue where cloning a repository to a folder
directly underneath the root of a volume (e.g. 'd:\libgit2')
would fail with an access denied error. This was traced down
to a call to make a directory that is the root (e.g. 'd:') could
return an error indicated access denied instead of an error
indicating the path already exists. This change now handles
the access denied error on Win32 and checks for the existence
of the folder.
git doesn't do that, and it's not something that's usually
actionable to fix. if you have a git repository with one bad
timezone in the history, it's too late to change it most likely.
Instead of just blowing away the stat cache data when loading a
new tree into the index, this checks if each loaded item has a
corresponding existing item with the same OID and if so, copies
the stat data from the old item to the new one so it will not be
blown away.
It is obviously quite a serious problem if this happens, but mutex
initialization can fail and we should detect it. It's a bit like
a memory allocation failure, in that you're probably pretty screwed
if this occurs, but at least we'll catch it.
By zeroing out the memory when we free larger objects (i.e. those
that serve as collections of other data, such as repos, odb, refdb),
I'm hoping that it will be easier for libgit2 bindings to find
errors in their object management code.
1. internal iterators now return GIT_ITEROVER when you go past the
last item in the iteration.
2. git_iterator_advance will "advance" to the first item in the
iteration if it is called immediately after creating the
iterator, which allows a simpler idiom for basic iteration.
3. if git_iterator_advance encounters an error reading data (e.g.
a missing tree or an unreadable file), it returns the error
but also attempts to advance past the invalid data to prevent
an infinite loop.
Updated all tests and internal usage of iterators to account for
these new behaviors.
`lpExitCode` is a pointer to a long. A long is 32 bits wide on Windows.
It means that on Windows 64bits, `GetExitCodeThread()` doesn't set/clear the high-order bytes of the 64 bits memory space pointed at by `value_ptr`.
git_packbuilder_write() used to write a packfile to the passed file
path. Instead, ask for a destination directory and create both the
packfile and an index, as most users probably do expect.
This adds ~/ prefix expansion for the value of core.attributesfile
and core.excludesfile, plus it fixes the fact that the attributes
cache was holding on to the string data from the config for a long
time (instead of making its own strdup) which could have caused a
problem if the config was refreshed. Adds a test for the new
expansion capability.
