Dave Borowitz [Mon, 26 Jan 2015 17:21:05 +0000 (09:21 -0800)]
InMemoryRepository: Ensure new ref targets exist in the repo
ObjectInserter recently learned to read back inserted objects before
they have been flushed. It is in general unsafe to create refs to such
objects, but it is now much more possible to do so, by passing "new
RevWalk(inserter.newReader())" into RefUpdate#execute(RevWalk).
We can't change the RefUpdate interface to remove execute(RevWalk);
nor would we necessarily want to, for performance reasons. And in any
case, RefUpdate#safeParse explicitly ignores MissingObjectExceptions.
But we can enforce object existence in InMemoryRepository, which will
allow callers using this class in their tests to ensure they are using
the RefDatabase correctly.
* changes:
Document that repo returned by SubmoduleAddCommand needs to be closed
Document that Git instance returned by CloneCommand needs to be closed
Matthias Sohn [Wed, 21 Jan 2015 21:27:46 +0000 (22:27 +0100)]
Merge remote-tracking branch 'origin/stable-3.6'
* origin/stable-3.6:
Prepare 3.6.3-SNAPSHOT builds
JGit v3.6.2.201501210735-r
Don't remove pack from pack list for problems which could be transient
Log reason for ignoring pack when IOException occurred
Change-Id: I61141b52839511d58e5a5b193bfde31e9f444a6c Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn [Thu, 15 Jan 2015 16:30:11 +0000 (17:30 +0100)]
Don't remove pack from pack list for problems which could be transient
If we hit a corrupt object or invalid pack remove the pack from the pack
list. Other IOException could be transient hence we should not remove
the pack from the list to avoid the problem reported on the Gerrit list
[1]. It looks like in the reported case the pack was removed from the
pack list causing MissingObjectExceptions which disappear when the
server is restarted.
Rüdiger Herrmann [Sun, 11 Jan 2015 15:20:51 +0000 (16:20 +0100)]
[pgm] Prevent commands from writing progress to System.err
Commands which report progress used to write to System.err. This is not
desirable in cases where jgit.pgm is embedded. This change redirects
progress output to the error stream that is configured by the command.
Change-Id: I01fa5e167437e619448ac201fcb1cbf63bad96d7 Signed-off-by: Rüdiger Herrmann <ruediger.herrmann@gmx.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Stefan Beller [Tue, 13 Jan 2015 00:49:21 +0000 (16:49 -0800)]
Update atomic constant
The atomic feature is now cooking in -next in git-core. Very rarely
features are ejected from the the next branch in git-core, so I consider
it reasonable to come up with this patch now to make the 2 implementations
interoperable.
Change-Id: I806a8ae3c045ca5936f69cb903baf9b99ee39181 Signed-off-by: Stefan Beller <sbeller@google.com>
Arthur Daussy [Thu, 31 Jan 2013 19:27:10 +0000 (20:27 +0100)]
Add basic support for .gitattributes
Core classes to parse and process .gitattributes files including
support for reading attributes in WorkingTreeIterator and the
dirCacheIterator.
The implementation follows the git ignore implementation. It supports
lazy reading attributes while walking the working tree.
Bug: 342372
CQ: 9078
Change-Id: I05f3ce1861fbf9896b1bcb7816ba78af35f3ad3d Also-by: Marc Strapetz <marc.strapetz@syntevo.com> Also-by: Gunnar Wagenknecht <gunnar@wagenknecht.org> Also-by: Arthur Daussy <arthur.daussy@obeo.fr> Signed-off-by: Gunnar Wagenknecht <gunnar@wagenknecht.org> Signed-off-by: Marc Strapetz <marc.strapetz@syntevo.com> Signed-off-by: Arthur Daussy <arthur.daussy@obeo.fr> Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com> Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Matthias Sohn [Sun, 4 Jan 2015 01:18:27 +0000 (02:18 +0100)]
Merge branch 'stable-3.6'
* stable-3.6:
Prepare 3.6.2-SNAPSHOT builds
JGit v3.6.1.201501031845-r
Trim author/committer name and email in commit header
Rename detection should canonicalize line endings
PathMatcher should respect "assumeDirectory" flag
Change-Id: Idd48c6d94cf1ab09abc07f70d50890b1b78e1833 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Rüdiger Herrmann [Fri, 17 Oct 2014 11:05:41 +0000 (13:05 +0200)]
Trim author/committer name and email in commit header
C Git trims name and email before inserting them into the commit header
so that " A U Thor " and " author@example.com " becomes
"A U Thor <author@example.com>" with a single separating space.
This changes PersonIdent#toExternalString() to trim name and email
before concatenating them.
Shawn Pearce [Sun, 30 Nov 2014 18:34:36 +0000 (10:34 -0800)]
Add .mailmap to correct Shawn and Saša's log entries
Both myself and Saša Živkov have been using different names
and email addresses in the JGit history. Configure .mailmap
to map to consistent entries for us.
Saša Živkov's entries were taken from the Gerrit Code Review
.mailmap file.
Andrey Loskutov [Sun, 14 Dec 2014 17:07:59 +0000 (18:07 +0100)]
PathMatcher should respect "assumeDirectory" flag
The path matcher should not fail if the rule ends with trailing slash,
target pattern does not ends with the slash and the "assumeDirectory"
flag is set.
E.g. */bin/ should also match a/bin if this pattern is threated as
directory by WorkingTreeIterator (FileMode.TREE).
The old code/tests have never tested directory rules with patterns
*without* trailing slashes but with the "assumeDirectory" flag set.
Unfortunately this is exactly what WorkingTreeIterator does... The tests
are changed to test *both* cases now (with trailing slash and without)
if the target pattern has trailing slash (represents directory).
Matthias Sohn [Wed, 24 Dec 2014 00:08:58 +0000 (01:08 +0100)]
Merge branch 'stable-3.6'
* stable-3.6:
Prepare 3.6.1-SNAPSHOT builds
JGit v3.6.0.201412230720-r
[pgm] Add option --bare to clone command
[pgm] Implement clone using CloneCommand
Fix junit tests under windows when the platform is explicitly changed
Fix unit tests for windows by explicitly closing test repos
[pgm] Add option --tags for ls-remote
[pgm] Add option --heads for ls-remote
[pgm] Use LsRemoteCommand to implement ls-remote and add a test
Change-Id: I8f31e76cb7e9416919f37e02c7e51ab1d221df40 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Fix junit tests under windows when the platform is explicitly changed
SystemReader used a chached ObjectChecker which was instantiated only
once. But in case of unit tests where we can change the platform
dynamically (e.g. MockSystemReader.setWindows()) this is wrong and
caused DirCacheCheckoutMaliciousPathTest.
testMaliciousAbsoluteCurDrivePathWindowsOnUnix() to fail. This change
allows
user of SystemReader to force the creation of a new ObjectChecker.
MockSystemReader.setWindows() and .setUnix() make use of this feature.
Shawn Pearce [Fri, 19 Dec 2014 15:57:55 +0000 (07:57 -0800)]
Merge branch 'stable-3.6'
* stable-3.6: (26 commits)
JGit v3.5.3.201412180710-r
JGit v3.4.2.201412180340-r
ObjectChecker: Disallow names potentially mapping to ".git" on HFS+
ObjectChecker: Disallow Windows shortname "GIT~1"
ObjectChecker: Disallow ".git." and ".git<space>"
Always ignore case when forbidding .git in ObjectChecker
DirCache: Refuse to read files with invalid paths
DirCache: Replace isValidPath with DirCacheCheckout.checkValidPath
Replace "a." with "a-" in unit tests
Support the new repository layout for submodules
Allow explicit configuration of git directory in CloneCommand
Allow explicit configuration of git directory in InitCommand
Fix tests on windows by closing repos
RepoCommand should close opened repos
Fix LocalDiskRepositoryTestCase to create correct type of repos
Prevent NPE if ref can't be resolved when executing ReflogCommand
Fix DirCacheCheckout to set correct file length if core.autocrlf=true
CheckoutCommand: Fix checking out ours/theirs when no base stage exists
Make sure modifications to config-param trustFolderStat are detected
Apache HttpClientConnection: replace calls to deprecated LocalFile()
...
Matthias Sohn [Thu, 18 Dec 2014 23:17:54 +0000 (00:17 +0100)]
Merge branch 'stable-3.5' into stable-3.6
* stable-3.5:
JGit v3.5.3.201412180710-r
JGit v3.4.2.201412180340-r
ObjectChecker: Disallow names potentially mapping to ".git" on HFS+
ObjectChecker: Disallow Windows shortname "GIT~1"
ObjectChecker: Disallow ".git." and ".git<space>"
Always ignore case when forbidding .git in ObjectChecker
DirCache: Refuse to read files with invalid paths
DirCache: Replace isValidPath with DirCacheCheckout.checkValidPath
Replace "a." with "a-" in unit tests
Apache HttpClientConnection: replace calls to deprecated LocalFile()
Fix two nits about DirCacheEntry constructors
Detect buffering failures while writing rebase todo file
Deprecate TemporaryBuffer.LocalFile without parent directory
Switch FileHeader.extractFileLines to TemporaryBuffer.Heap
AmazonS3: Buffer pushed pack content under $GIT_DIR
DirCache: Buffer TREE extension to $GIT_DIR
Change-Id: Iee8acbaa9d4d9047b550641db1b8845d64530785 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn [Thu, 18 Dec 2014 14:18:07 +0000 (15:18 +0100)]
Merge branch 'stable-3.4' into stable-3.5
* stable-3.4:
JGit v3.4.2.201412180340-r
ObjectChecker: Disallow names potentially mapping to ".git" on HFS+
ObjectChecker: Disallow Windows shortname "GIT~1"
ObjectChecker: Disallow ".git." and ".git<space>"
Always ignore case when forbidding .git in ObjectChecker
DirCache: Refuse to read files with invalid paths
DirCache: Replace isValidPath with DirCacheCheckout.checkValidPath
Replace "a." with "a-" in unit tests
Apache HttpClientConnection: replace calls to deprecated LocalFile()
Fix two nits about DirCacheEntry constructors
Detect buffering failures while writing rebase todo file
Deprecate TemporaryBuffer.LocalFile without parent directory
Switch FileHeader.extractFileLines to TemporaryBuffer.Heap
AmazonS3: Buffer pushed pack content under $GIT_DIR
DirCache: Buffer TREE extension to $GIT_DIR
Change-Id: I398cf40b006a05a6537788fc6eb1f84df1ed8814 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn [Mon, 15 Dec 2014 13:42:04 +0000 (14:42 +0100)]
ObjectChecker: Disallow names potentially mapping to ".git" on HFS+
Mac's HFS+ folds concatentations of ".git" and ignorable Unicode
characters [1] to ".git" [2]. Hence we need to disallow all names which
could potentially be a shortname for ".git". Example: in an empty
directory create a folder ".g\U+200Cit". Now you can't create another
folder ".git".
The following characters are ignorable Unicode which are ignored on
HFS+:
unicode hex name
-------------------------------------------------
U+200C 0xe2808c ZERO WIDTH NON-JOINER
U+200D 0xe2808d ZERO WIDTH JOINER
U+200E 0xe2808e LEFT-TO-RIGHT MARK
U+200F 0xe2808f RIGHT-TO-LEFT MARK
U+202A 0xe280aa LEFT-TO-RIGHT EMBEDDING
U+202B 0xe280ab RIGHT-TO-LEFT EMBEDDING
U+202C 0xe280ac POP DIRECTIONAL FORMATTING
U+202D 0xe280ad LEFT-TO-RIGHT OVERRIDE
U+202E 0xe280ae RIGHT-TO-LEFT OVERRIDE
U+206A 0xe281aa INHIBIT SYMMETRIC SWAPPING
U+206B 0xe281ab ACTIVATE SYMMETRIC SWAPPING
U+206C 0xe281ac INHIBIT ARABIC FORM SHAPING
U+206D 0xe281ad ACTIVATE ARABIC FORM SHAPING
U+206E 0xe281ae NATIONAL DIGIT SHAPES
U+206F 0xe281af NOMINAL DIGIT SHAPES
U+FEFF 0xefbbbf ZERO WIDTH NO-BREAK SPACE
Windows creates shortnames for all non-8.3 files (see [1]). Hence we
need to disallow all names which could potentially be a shortname for
".git". Example: in an empty directory create a folder "GIT~1". Now you
can't create another folder ".git".
The path "GIT~1" may map to ".git" on Windows. A potential victim to
such an attack first has to initialize a git repository in order to
receive any git commits. Hence the .git folder created by init will get
the shortname "GIT~1". ".git" will only get a different shortname if the
user has created a file "GIT~1" before initialization of the git
repository.
[1] http://en.wikipedia.org/wiki/8.3_filename
Change-Id: I9978ab8f2d2951c46c1b9bbde57986d64d26b9b2 Signed-off-by: Christian Halstrick <christian.halstrick@sap.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Shawn Pearce [Mon, 1 Dec 2014 23:01:07 +0000 (15:01 -0800)]
ObjectChecker: Disallow ".git." and ".git<space>"
Windows treats "foo." and "foo " as "foo". The ".git" directory is
special, as it contains metadata for a local Git repository. Disallow
variations that Windows considers to be the same.
Shawn Pearce [Mon, 24 Nov 2014 18:27:49 +0000 (10:27 -0800)]
Always ignore case when forbidding .git in ObjectChecker
The component name ".GIT" inside a tree entry could confuse a
case insensitive filesystem into looking at a submodule and
not a directory entry.
Disallow any case permutations of ".git" to prevent this
confusion from entering a repository and showing up at a
later date on a case insensitive system.
Shawn Pearce [Tue, 25 Nov 2014 19:43:32 +0000 (11:43 -0800)]
DirCache: Refuse to read files with invalid paths
If the DirCache contains a path that is known to be invalid, refuse to
read the DirCache into memory. This avoids confusing errors later if
an invalid path read from the DirCache were to be passed into a new
DirCacheEntry constructor.
Shawn Pearce [Tue, 25 Nov 2014 08:47:48 +0000 (00:47 -0800)]
DirCache: Replace isValidPath with DirCacheCheckout.checkValidPath
isValidPath is an older simple form of the validation performed by
checkValidPath. Use the latter as it more consistently matches
git-core's validation rules.
By running the same validation as fsck, callers creating an entry
for the DirCache are more likely to learn early they are trying
to build trees that will fail fsck.
Shawn Pearce [Sat, 29 Nov 2014 04:37:18 +0000 (20:37 -0800)]
Replace "a." with "a-" in unit tests
Windows does not like naming files "a.". The trailing "." may be
dropped by the filesystem, which is confusing. Even though these
tests currently do not write to disk, future tests like them might.
Replace "." with "-", which has the same sorting properties that
were desirable about ".", but does not have the same limitations.
When updating a submodule (e.g. during recursive clone) the repository
for the submodule should be located at <gitdir>/modules/<submodule-path>
whereas the working tree of the submodule should be located at
<working-tree>/<submodule-path> (<gitdir> and <working-tree> are
associated to the containing repository). Since CloneCommand has learned
about specifying a separate gitdir this is easy to implement in
SubmoduleUpdateCommand.
Allow explicit configuration of git directory in InitCommand
Native git's "init" command allows to specify the location of the .git
folder with the option "--separate-git-dir". This allows for example to
setup repositories with a non-standard layout. E.g. .git folder under
/repos/a.git and the worktree under /home/git/a. Both directories
contain pointers to the other side: /repos/a.git/config contains
core.worktree=/home/git/a . And /home/git/a/.git is a file containing
"gitdir: /repos/a.git". This commit adds that option to InitCommand.
This feature is needed to support the new submodule layout where the
.git folder of the submodules is under .git/modules/<submodule>.
Shawn Pearce [Fri, 12 Dec 2014 21:53:18 +0000 (16:53 -0500)]
Revert "Extract path info from requests without decoding"
This reverts commit 19f869996f27adf59ec507e5f565d8b5619576f3.
Leaving path info encoded confuses applications like Gitiles.
Trying to fix this inside of JGit was maybe the wrong solution.
Fix LocalDiskRepositoryTestCase to create correct type of repos
In one place LocalDiskRepositoryTestCase was ignoring the specification
whether to create a bare or non-bare repository. Fix this and fix also
one test which fails now because bare repos don't write reflogs by
default.
Change-Id: I4bcf8cf97c5b46e2f3919809eaa121a8d0e47010 Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn [Sat, 6 Dec 2014 01:59:34 +0000 (02:59 +0100)]
Fix DirCacheCheckout to set correct file length if core.autocrlf=true
To update the file length stat we need to use the length of the
temporary file since it's not yet renamed to the target file name here.
The incorrect file length stat update was introduced in a606dc363d0f6b09e4527cca6b645d3cb1ec407d.
Bug: 453962
Change-Id: I715c048227553efae6f8f6b6878c0f04f2609d9c Also-by: Konrad Kügler <swamblumat-eclipsebugs@yahoo.de> Also-by: Christian Halstrick <christian.halstrick@sap.com> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Robin Stocker [Sun, 30 Nov 2014 10:20:26 +0000 (21:20 +1100)]
CheckoutCommand: Fix checking out ours/theirs when no base stage exists
In case of an add/add conflict, no base stage exists. The previous
implementation would skip over the entries because the condition
expected the base stage to always exist.
Change-Id: Ie2b3685d958c09b241991b74e6177401e8a1ebc9 Signed-off-by: Robin Stocker <robin@nibor.org>
David Pletcher [Sat, 1 Nov 2014 21:34:18 +0000 (14:34 -0700)]
Extract path info from requests without decoding
Gitiles malfunctions in conjunction with jgit and guice
because of a recent Guice bug fix. Work around the problem
by parsing the URI directly, bypassing the unescaping
performed by the getPathInfo method.
This rest of this message is copied from
https://gerrit-review.googlesource.com/#/c/60820/ :
The fix for Guice issue #745[1] causes getPathInfo() within the
GuiceFilter to return decoded values, eliminating the difference
between "foo/bar" and "foo%2Fbar". This is in spec with the servlet
standard, whose javadoc for getPathInfo[2] states that the return
value be "decoded by the web container".
Work around this by extracting the path part directly from the request
URI, which is unmodified by the container. This is copying the Guice
behavior prior to the bugfix.
Shawn Pearce [Tue, 25 Nov 2014 05:43:59 +0000 (21:43 -0800)]
Move checkPath from DirCacheCheckout to ObjectChecker
The bulk of the "is this sane" logic is inside of ObjectChecker. The
only caller for the version in DirCacheCheckout is an obtuse usage for
the static isValidRefName() method in Repository.
Deprecate the weird single use method in DirCacheCheckout and move all
code for checking a sequence of path components into ObjectChecker,
where it makes sense alongside the existing code that checks a single
component at a time.
Reuse a single ObjectChecker for the local platform, to avoid looking
up the system properties on each path string considered.
Michael Keppler [Fri, 28 Nov 2014 20:21:59 +0000 (21:21 +0100)]
Use baseline instead of centerline in PlotRenderer
If the text extent height of a to be rendered plot line is odd, then the
SWTPlotRenderer cannot calculate the correct Y position for drawing the
label and draws the label with a 1 pixel offset. SWT text drawing uses
the baseline as Y coordinate. Due to the given centerline API in the
AbstractPlotRenderer the overall calculation of the baseline for SWT is
effectively (height / 2) * 2, thereby rounding all odd heights downward
to the next even number.
This change pushes the division by 2 from the caller into the
implementations of drawText. A corresponding change will be pushed in
the egit repository.
Bug: 450813
Change-Id: I66f4e71873bb8e6f936fde573bbe4c35fe23a022 Signed-off-by: Michael Keppler <michael.keppler@gmx.de> Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Andrey Loskutov [Wed, 22 Oct 2014 07:31:42 +0000 (09:31 +0200)]
Consider parent rules if ignore rule is negated
The change tries to make jgit behave more like native CLI git regarding
the negation rules. According to [1] "... prefix "!" which negates the
pattern; any matching file excluded by a previous pattern will become
included again." Negating the pattern should not automatically make the
file *not ignored* - other pattern rules have to be considered too.
The fix adds test cases for both bugs 448094 and 407475.
Shawn Pearce [Wed, 26 Nov 2014 00:14:33 +0000 (16:14 -0800)]
ResolveMerger: Use checkoutEntry during abort
The cleanUp path is trying to restore files that previously were
clean, but were overwritten in the work tree by a partial merge
attempt that has failed and needs to be aborted. Reuse the checkout
logic to write the file content and refresh the stat data.
Shawn Pearce [Tue, 25 Nov 2014 23:10:41 +0000 (15:10 -0800)]
Cleanup double stat update of symlinks in DirCacheCheckout
When writing a symlink the stat data should only be written once
into the DirCacheEntry, based on the symlink itself and not the
possibly resolved destination observed by java.io.File.
Refactor the code to handle symlinks and early return. This
removes the risk the blob stat info update is used against a
newly checked out symlink.
Hoist the file length stat update immediately after writing
the file, before a rename. This eliminates any race caused by another
process updating the file length after the rename and having it to
fall into the racily clean path.
Shawn Pearce [Tue, 25 Nov 2014 21:49:22 +0000 (13:49 -0800)]
Deprecate checkoutEntry variant that accepts File
Entries should only be written to the working tree managed by the
Repository. Simplify callers by passing only the entry and computing
the work tree location inside of the checkoutEntry method.
Shawn Pearce [Mon, 24 Nov 2014 19:38:09 +0000 (11:38 -0800)]
DirCacheCheckout: create only one ObjectReader
This deprecated method accidentally creates two ObjectReader
instances. Use the instance created one line above that is
correctly released in the finally block.
Shawn Pearce [Tue, 25 Nov 2014 05:06:30 +0000 (21:06 -0800)]
Fix two nits about DirCacheEntry constructors
Explicitly pass STAGE_0 when creating a DirCacheEntry from String.
This matches the immediate next constructor that accepts the int
stage argument better, making the code easier to read.
Fix a weird line break where the comma was orphaned by itself.
Shawn Pearce [Tue, 25 Nov 2014 04:51:07 +0000 (20:51 -0800)]
Detect buffering failures while writing rebase todo file
By routing writes through SafeBufferedOutputStream the caller can be
alerted to any flush at close failures while writing or appending to
the rebase todo script.
Switch the character encoding to be done at the line granularity, as
this is sufficiently long enough that encoding overheads will not be a
bottleneck, but short enough that the amount of temporary data will
not cause memory problems for the JVM.
Shawn Pearce [Tue, 25 Nov 2014 17:53:57 +0000 (09:53 -0800)]
Deprecate TemporaryBuffer.LocalFile without parent directory
Encourage callers to explicitly name a directory to hold any
overflow data. Call sites have more information about what is
going into the buffer and how it should be protected at the
filesystem level than just throwing content to the system wide
temporary directory.
Callers that still really don't care (or need to care) can pass
null for the File argument to have the system directory used.
Shawn Pearce [Tue, 25 Nov 2014 04:05:34 +0000 (20:05 -0800)]
DirCache: Buffer TREE extension to $GIT_DIR
Increase the in-memory buffer for the TREE extension to 5 MiB, and
overflow to $GIT_DIR instead of /tmp. Using a larger buffer reduces
the chances a repository will overflow and need to spool the extension
to disk. Using $GIT_DIR allows the TREE extension contents to have
the same file system protections as the final $GIT_DIR/index.
Wrap the entire thing in a try/finally to ensure the temp file is
deleted from disk after the block has finished using it. To avoid
dangling NFS files, LocalFile.destroy() does close the local file
before deleting it.
Shawn Pearce [Mon, 24 Nov 2014 22:51:09 +0000 (14:51 -0800)]
Allow configurable ObjectCheckers in fetch
RecievePack already honors fsck settings for safeForWindows and
safeForMacOS. Allow those same checks to be performed during fetch
through a caller-configurable ObjectChecker.
Default the fetch fsck options to match the current platform, as
it can be reasonably assumed the repository will be accessed here.
Shawn Pearce [Mon, 24 Nov 2014 19:38:09 +0000 (11:38 -0800)]
Deprecate checkoutEntry without ObjectReader
Callers should manage the ObjectReader, as this allows the JGit library to cache
context relevant information across files checked out at the same time. If the
caller only has one file to checkout, it should still explicitly manage the life
span of the ObjectReader.