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This allows the user to look up fields which we don't parse in libgit2,
and allows them to access gpgsig or mergetag fields if they wish to
check the signature.
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Don't propagate workdir's mode to the index during diff's update index
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When updating the index during a diff, preserve the original mode,
which prevents us from dropping the mode to what we have interpreted
as on our system (eg, what the working directory claims it to be,
which may be a lie on some systems.)
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Test to ensure that when status updates an index, it does not alter
the original mode for file types that are not supported (eg, symlinks
on Windows).
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Fixed index being double-freed in stash tests
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Use the checksum to check whether an index has been modified
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This is used by the submodule in order to figure out if the index has
changed since it last read it. Using a timestamp is racy, so let's make
it use the checksum, just like we now do for reloading the index itself.
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We currently use a timetamp to check whether an index file has been
modified since we last read it, but this is racy. If two updates happen
in the same second and we read after the first one, we won't detect the
second one.
Instead read the SHA-1 checksum of the file, which are its last 20 bytes which
gives us a sure-fire way to detect whether the file has changed since we
last read it.
As we're now keeping track of it, expose an accessor to this data.
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This will tell us which numbers we were trying to compare, rather than
just telling us that they're different.
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Quote LIBSSH2_LIBRARIES call
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Credits to @directhex
It is possible for PKG_CHECK_MODULES(LIBSSH2 libssh2) to LIBSSH2_LIBRARIES to a string with more than one library in it - e.g. if your libssh2 was built against libgcrypt, it will be "ssh2;gcrypt"
Quoting the string is needed, or CHECK_LIBRARY_EXISTS will fail.
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When ticking over one second, it can happen that the actual time ticks
over the same second between the time that we undermine our own race
protections and the time in which we perform the index update. Such
timing would make the time in the entries match the index' timestamp and
we have not gained anything.
Ticking over five seconds makes it so that if real-time rolls over that
second, our index is still ahead. This is still suboptimal as we're
dealing with timing, but five seconds should be long enough for any
reasonable test runner to finish the tests.
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Fixed Xcode 6.1 build warnings
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Fix memory leak in tests/network/refspecs.c
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Zero out racily-clean entries' file_size
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When checking out some file 'foo' that has been modified in the
working directory, allow the checkout to proceed (do not conflict)
if 'foo' is identical to the target of the checkout.
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Provide functionality to set the time on a filesystem entry,
using utimes or futimes on POSIX type systems or SetFileTime
on Win32.
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These tests want to test that we don't recalculate entries which match
the index already. This is however something we force when truncating
racily-clean entries.
Tick the index forward as we know that we don't perform the
modifications which the racily-clean code is trying to avoid.
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In order to avoid racy-git, we zero out the file size for entries with
the same timestamp as the index (or during the initial checkout). This
is the case in a couple of crlf tests, as the code is fast enough to do
everything in the same second.
As we know that we do not perform the modification just after writing
out the index, which is what this is designed to work around, tick the
mtime of the index file such that it doesn't agree with the files
anymore, and we do not zero out these entries.
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If a file entry has the same timestamp as the index itself, it is
considered racily-clean, as it may have been modified after the index
was written, but during the same second. We take extra steps to check
the contents, but this is just one part of avoiding races.
For files which do have changes but have not been updated in the index,
updating the on-disk index means updating its timestamp, which means we
would no longer recognise these entries as racy and we would trust the
timestamp to tell us whether they have changed.
In order to work around this, git zeroes out the file-size field in
entries with the same timestamp as the index in order to force the next
diff to check the contents. Do so in libgit2 as well.
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We update the index and then immediately change the contents of the
file. This makes the diff think there are no changes, as the timestamp
of the file agrees with the cached data. This is however a bug, as the
file has obviously changed contents.
The test is a bit fragile, as it assumes that the index writing and the
following modification of the file happen in the same second, but it's
enough to show the issue.
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commit: ignore multiple author fields
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Some tools create multiple author fields. git is rather lax when parsing
them, although fsck does complain about them. This means that they exist
in the wild.
As it's not too taxing to check for them, and there shouldn't be a
noticeable slowdown when dealing with correct commits, add logic to skip
over these extra fields when parsing the commit.
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remote: return EINVALIDSPEC when given an empty URL
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This is what we used to return in the settter and there's tests in
bindings which ask for this. There's no particular reason to stop doing
so.
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Fixed Xcode 6.1 build warnings
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Fix visibility of transaction symbol
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Transaction.c did not include the visibility definition of its symbol
(that are in git2/transaction.h) and so was by default hidden.
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path: remove unnecessary readdir_r usage
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Arguably all uses of readdir_r are unnecessary, but in this case
especially so, as the directory handle only exists within this function,
so we don't race with anybody.
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clone: fall back to copying when linking does not work
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We use heuristics to make a decent guess at when we can save time and
space by linking object files during a clone. Unfortunately checking the
device id isn't enough, as those would be the same during e.g. a bind-mount,
but the OS still does not allow us to link between mounts of the same
filesystem.
If we fail to perform the links, fall back to copying the contents into
a new file as a last attempt.
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is unavailable to iOS targets.
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Binary diffs: store deltas in the diff structure, include binary data in diff callbacks
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Introduce a new binary diff callback to provide the actual binary
delta contents to callers. Create this data from the diff contents
(instead of directly from the ODB) to support binary diffs including
the workdir, not just things coming out of the ODB.
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Fix leaks in tests/checkout/icase
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Fix memory leak on windows in diriter.
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Fixed some Secure Transport issues on OS X
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The read and write callbacks passed to SSLSetIOFuncs() have been
rewritten to match the implementation used on opensource.apple.com and
other open source projects like VLC.
This change also fixes a bug where the read callback could get into
an infinite loop when 0 bytes were read.
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