This introduces the background plumbing necessary to run git hooks from
JGit. This implementation will be OS-dependent as it aims to be
compatible with existing hooks, mostly written in Shell. It is
compatible with unix systems and windows as long as an Unix emulator
such as Cygwin is in its PATH.

Change-Id: I1f82a5205138fd8032614dd5b52aef14e02238ed
Signed-off-by: Laurent Goubet <laurent.goubet@obeo.fr>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Bug: 424395
Change-Id: I3f5c55dd4c084529af2319029305ba2e174e0636
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Java normalizes paths to NFC, but other source may not, e.g Eclipse.

Bug: 413390
Change-Id: I08649ac58c9b3cb8bf12794703e4137b1b4e94d5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

On Windows the length reported by FileAttributes is the size
of the target file (a bug, I guess) rather than the link,
so we read the linke and look at the length of the link instead.

Bug: 353771
Change-Id: I834b06d0447f84379612b8c9190fa77093617595
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Change-Id: Ib6f6fd5ef4a0c9b2062445ac4a0c9d1131e401bf

The most important difference is that in Java7 we have symbolic links
and for most operations in the work tree we want to operate on the link
itself rather than the link target, which the old File methods generally
do.

We also add support for the hidden attribute, which only makes sense
on Windows and exists, just since there are claims that Files.exists
is faster the File.exists.

A new bundle is only activated when run with a Java7 execution
environment. It is implemented as a fragment.

Tycho currently has no way to conditionally include optional features
based on the java version used to run the build, this means with this
change the jgit packaging build always needs to be run using java 7.

Change-Id: I3d6580d6fa7b22f60d7e54ab236898ed44954ffd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

A few classes such as Constanrs are marked with @SuppressWarnings, as are
toString() methods with many liternal, but otherwise $NLS-n$ is used for
string containing text that should not be translated. A few literals may
fall into the gray zone, but mostly I've tried to only tag the obvious
ones.

Change-Id: I22e50a77e2bf9e0b842a66bdf674e8fa1692f590

This permits an application to create its own copy of FS.DETECTED
before manually setting the userHome or gitPrefix.

Bug: 337101
Change-Id: Ieea33c8d0ebdc801a4656b829d2a4b398559fd45
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

This allows callers to perform the logic that constructed the
current FS.DETECTED value.

Change-Id: Id8517d131dcc3f675c60b2d935730872695ed1b0
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>

These settings are stored in <prefix>/etc/gitconfig. The C Git
binary is installed in <prefix>/bin, so we look for the C Git
executable to find this location, first by looking at the PATH
environment variable and then by attemting to launch bash as
a login shell to find out.

Bug: 333216
Change-Id: I1bbee9fb123a81714a34a9cc242b92beacfbb4a8
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>

GitIndex.write fails if another thread concurrently reads
the index file. The problem is fixed by retrying the rename
operation if it fails.

Bug: 311051
Change-Id: Ib243d2a90adae312712d02521de4834d06804944
Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>

Per CQ 3448 this is the initial contribution of the JGit project
to eclipse.org.  It is derived from the historical JGit repository
at commit 3a2dd9921c.

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