Change-Id: I64b0c057dd0a12aef2f3d56fa0c8a10e3b23fffd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

This is the format given by the Eclipse legal doc generator [1].

[1] https://www.eclipse.org/projects/tools/documentation.php?id=technology.jgit

Bug: 548298
Change-Id: I8d8cabc998ba1b083e3f0906a8d558d391ffb6c4
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

Canonical git shows the zero-Id for lines without commit, and
uses the current time stamp for such lines.

Also consider lines without commit when calculating the field
widths.

Change-Id: If0bee9b3e7f90861ad0f387f68e52ecc4a53dfd7
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>

When a conflicting file was blamed, JGit would not identify lines
coming from the merge parents. The main cause for this was that
Blame and BlameCommand simply added the first DirCacheEntry found
for a file to its queue of candidates (blobs or commits) to consider.
In case of a conflict this typically is the merge base commit, and
comparing a auto-merged contents against that base would yield
incorrect results.

Such cases have to be handled specially. The candidate to be
considered by the blame must use the working tree contents, but
at the same time behave like a merge commit/candidate with HEAD
and the MERGE_HEADs as parents. Canonical git does something very
similar, see [1].

Implement that and add tests.

I first did this for the JGit pgm Blame command. When I then tried
to do the same in BlameCommand, I noticed that the latter also
included some fancy but incomplete CR-LF handling. In order to
be able to use the new BlameGenerator.prepareHead() also in
BlameCommand this CR-LF handling was also moved into BlameGenerator
and corrected in doing so.

(Just considering the git config settings was not good enough,
CR-LF behavior can also be influenced by .gitattributes, and even
by whether the file in the index has CR-LF. To correctly determine
CR-LF handling for check-in one needs to do a TreeWalk with at
least a FileTreeIterator and a DirCacheIterator.)

[1] https://github.com/git/git/blob/v2.22.0/blame.c#L174

Bug: 434330
Change-Id: I9d763dd6ba478b0b6ebf9456049d6301f478ef7c
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>

Make the command die with proper messages when the revision
cannot be resolved or the file doesn't exist in the repository.
Previously the command would throw NPEs in these cases.

Bug: 490798
Change-Id: Ia457347aa22cf6bd2c2b6e7b9d705a66b3826307
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>

Change-Id: I7c545d06b1bced678c020fab9af1382bc4416b6e
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>

Change-Id: I05d5392789b5b64e6ee44f678556cf25dc30d7ba
Signed-off-by: Ned Twigg <ned.twigg@diffplug.com>