Change-Id: I83ed20823dc6b22ff48c2a554acb2f7d3b6067b7

Since [1] the gerrit project includes jgit as a submodule, and has this
warning enabled, resulting in 100s of warnings in the console.

Also enable the warning here, and fix them.

At the same time, add missing braces around adjacent and nearby one-line
blocks.

[1] https://gerrit-review.googlesource.com/c/gerrit/+/227897

Change-Id: I81df3fc7ed6eedf6874ce1a3bedfa727a1897e4c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

Configure PDE to not warn about not exported packages for test bundles.

Reusable test code which other bundles may want to reuse should go into
one of the junit bundles:
- org.eclipse.jgit.junit
- org.eclipse.jgit.junit.http
- org.eclipse.jgit.junit.ssh

Change-Id: Ifbdf30f8552e8f4bad6bbdeb63f729c53c844315
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Change-Id: I95de23fbdce125305be08079bcd179413f8f7f5c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

The code base has several @SuppressWarnings annotations to suppress
warnings raised by Error Prone, but those are not recognized by
Eclipse and there is currently no way to tell it about them [1].

Suppress them for now.

[1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=392045

Change-Id: I3de7cfa8ad4370ca5be71e1303879c73ab6829c1
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

The commit message template contains a superfluous blank at the end of
the first line, which is deleted by this change. This is only relevant
for jgit contributors using Eclipse, not for jgit users.

Change-Id: I462deb49c26fb64b3dc2d1d75f1e40ef302b0fc9
Signed-off-by: Michael Keppler <Michael.Keppler@gmx.de>

Change-Id: Iefe97de6bdb62af558f1b0e77c9205a9186f9b4c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

- this is a new warning option in Eclipse 4.7 and higher
- we always change version of all bundles in a release to keep release
engineering simple

Change-Id: Ic7523d77b67b2802f1bab3bc70af250d712a034f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Do not automatically organize imports using a save action since this
seems to be buggy and removed some annotations org.eclipse.jgit.pgm
needs to use args4j.

Change-Id: I5a91292c3b9241ce2dde3e4ecce14ad460097129
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Revert the following save actions which were introduced in c0ad77d8:
- always use braces around blocks
- remove unused imports

Other than I expected save actions are run globally on edited files -
and not only on edited code lines only.

Hence revert the save action "Convert control statement bodies to
blocks" which would affect a large number of code lines not affected by
the change editing some small part of a class. This would generate a
large number of changes which may lead to many unnecessary conflicts.
Total number of affected lines across jgit would be around 10k lines.

Also revert "Remove unused imports" since it erroneously removes imports
of some annotations needed by pgm classes using args4j.

Change-Id: I879a47f68e664129e6124cf25c1ae1f6a2d7a5aa
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Add the following Eclipse save actions executed when saving modified
lines. This should help to reduce manual work needed to maintain a clean
and consistent code style:
- organize imports
- always use braces around blocks
- add missing annotations
  - @Override including implementation of interface methods
  - @Deprecated
- remove
  - unused imports
  - unnecessary $NON-NLS$ tags
  - redundant type arguments

Also add default values for new settings that were introduced in recent
Eclipse versions up to Neon since we updated save rules the last time.

Change-Id: Idc90b249df044d0552f04edf01a5f607c4846f50
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Since the introduction of generic type parameter inference in Java 7,
it's not necessary to explicitly specify the type of generic parameters.

Enable the warning in Eclipse, and fix all occurrences.

Change-Id: I9158caf1beca5e4980b6240ac401f3868520aad0
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

Set missingOverrideAnnotation=warning in Eclipse compiler preferences
which enables the warning:

  The method <method> of type <type> should be tagged with @Override
  since it actually overrides a superclass method

Justification for this warning is described in:

  http://stackoverflow.com/a/94411/381622

Enabling this causes in excess of 1000 warnings across the entire
code-base. They are very easy to fix automatically with Eclipse's
"Quick Fix" tool.

Fix all of them except 2 which cause compilation failure when the
project is built with mvn; add TODO comments on those for further
investigation.

Change-Id: I5772061041fd361fe93137fd8b0ad356e748a29c
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

Bug: 500059
Change-Id: I47f3f6749a67da52029f84e002d9b155ed56d2b7
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Change-Id: I50407e4a33e35b718ca40503fdd436f1f9f70fba
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

Implement LfsProtocolServlet handling the "Git LFS v1 Batch API"
protocol [1]. Add a simple file system based LFS content store and the
debug-lfs-store command to simplify testing.

Introduce a LargeFileRepository interface to enable additional storage
implementation while reusing the same protocol implementation.

At the client side we have to configure the lfs.url, specify that
we use the batch API and we don't use authentication:

  [lfs]
	  url = http://host:port/lfs
	  batch = true
  [lfs "http://host:port/lfs"]
	  access = none

the git-lfs client appends the "objects/batch" to the lfs.url.

Hard code an Authorization header in the FileLfsRepository.getAction
because then git-lfs client will skip asking for credentials. It will
just forward the Authorization header from the response to the
download/upload request.

The FileLfsServlet supports file content storage for "Large File
Storage" (LFS) server as defined by the Github LFS API [2].

- upload and download of large files is probably network bound hence use
  an asynchronous servlet for good scalability
- simple object storage in file system with 2 level fan-out
- use LockFile to protect writing large objects against multiple
  concurrent uploads of the same object
- to prevent corrupt uploads the uploaded file is rejected if its hash
  doesn't match id given in URL

The debug-lfs-store command is used to run the LfsProtocolServlet and,
optionally, the FileLfsServlet which makes it easier to setup a
local test server.

[1]
https://github.com/github/git-lfs/blob/master/docs/api/http-v1-batch.md
[2] https://github.com/github/git-lfs/tree/master/docs/api

Bug: 472961
Change-Id: I7378da5575159d2195138d799704880c5c82d5f3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>