Replace 'method' with 'heap'-based recursion for resolving deltas.
Git packfile delta-chain depth can exceed 50 levels in certain files
(the packfile of the JGit project itself has >800 objects with
chain-length >50). Using method-based recursion on such packfiles will
quickly throw a StackOverflowError on VMs with constrained stack.
Benefits:
* packfile delta-resolution no longer limited by the maximum number
of stack frames permitted on the current thread.
* slight performance improvement
(3% speed increase on the packfile of the JGit project)
Change-Id: I1d9b3a8ba3c6d874d83cb93ebf171c6ab193e6cc
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
There are currently no JUnit4 tests here, but since we made JUnit4
the default for maven, it should be for Eclipse builds too.
Change-Id: Ic910df1705fa8d6ac26e97a41947cb8e5526d334
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
We cannot use SystemReader to get the time, unless we do that consistently,
which is harder to do and be sure we are really testing what we want.
Then we need to update our lastRead variable whenever we conclude that
our file is not racily clean according to lastRead. It may well be clean,
but we do not know that until we check the system clock again.
Finally add a test for this class.
Change-Id: I1894b032b9bd359d1b5325e5472d48e372599e4c
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Some enablement was done earlier, but we need to add the org.junit package
and hamcrest to make it work.
junit.textui removed, probably a mistake at some time in the past.
Change-Id: I6922a2f40eb0c077a8ade5ed073ecf0e90425544
If the 'TREE' extension contains an invalid subtree that has
been removed, DirCacheIterator still tried to access it due to
an invalid childCnt field within the parent DirCacheTree object.
This is easy for a user to do, they just need to move all files
out of a subdirectory.
For example, the input for the JUnit test case for this bug was
built using the following C Git sequence:
mkdir -p a/b
touch a/b/c q
git add a/b/c q
git write-tree
git mv a/b/c a/a
After the last step, the subdirectory a/b is empty, as its only
file was moved into the parent directory. Because of the earlier
`git write-tree` operation, there is a 'TREE' extension present, but
the a and a/b subdirectories have been marked invalid by the rename.
When JGit tried to iterate over the a tree, it tried to correct
childCnt to be zero as a/b no longer exists, but it failed to
update childCnt.
Change-Id: I7a0f78fc48a36b1a83252d354618f6807fca0426
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Avoid the dependency on the local filesystem by using only an in-core
DirCache instance. Each test case builds up the index from scratch
anyway through a DirCacheBuilder.
Change-Id: I5decf6bffc3ed35bf1d3e4ad5cc095891c80b772
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
As discussed in
http://egit.eclipse.org/r/#change,2127
we should use paths relative the working directory instead of Files to
notify the caller about conflicts and nondeleted files.
Change-Id: I034c7bd846f0df78d97bc246f38d411f29713dde
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
The CheckoutCommand does not handle names other than local branch
names properly; it must detach HEAD if such a name is encountered (for
example a commit ID or a remote tracking branch).
Change-Id: I5d55177f4029bcc34fc2649fd564b125a2929cc4
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
This simple change lets us get rid of WorkDirCheckout from JGit,
and all of its supporting code.
Change-Id: I1a5aabe9ab4a2b156fd37cc7e9ededb4ed70f53a
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
These tests doesn't need to use WriteTree anymore. There are
other means of creating tree objects in the repository that aren't
deprecated, so use those instead.
Change-Id: I89cd8ab54c66964a5fddc0a045f1c0f1c7c49055
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This is needed by callers to determine checkout conflicts and
possible files that were not deleted during the checkout so that they
can present the end user with a better Exception description and retry
to delete the undeleted files later, respectively.
Change-Id: I037930da7b1a4dfb24cfa3205afb51dc29e4a5b8
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
This wrongly returns the same as getConflicts()
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Change-Id: Id37c625458fc5a9b3987f05b684620e24fdfe852
Relying only on the last modified time for a file can be tricky.
The "racy git" problem may cause some modifications to be missed.
Use the new FileSnapshot code to track when a configuration file
has been modified, and needs to be reloaded in memory.
Change-Id: Ib6312fdd3b2403eee5af3f8ae711294b0e5f9035
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Pulling the last modified checking logic out of ObjectDirectory
makes it possible to reuse this code for other files, such as
the $GIT_DIR/config or $GIT_DIR/packed-refs files.
Change-Id: If2f27a89fc3b7adde7e65ff40bbca5d55b98b772
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When the Config is changed, it should be saved back to its local
file. This ensure that a future call to getConfig() won't wipe
out the edits that were just made.
Change-Id: Id46d3f85d1c9b377f63ef861b72824e1aa060eee
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Each time getConfig() is called on FileRepository, it checks the
last modified time of both ~/.gitconfig and $GIT_DIR?config. If
$GIT_DIR/config appears to have been modified, it is read back in
from disk and the current config is wiped out.
When mutating a configuration file, this may cause in-memory edits
to disappear. To avoid that callers need to avoid calling getConfig
until after the configuration has been saved to disk.
Unfortunately the API is still horribly broken. Configuration should
be modified only while a lock is held on the configuration file, very
similar to the way a ref is updated via its locking protocol. But our
existing API is really broken for that so we'll have to defer cleaning
up the edit path for a future change.
Change-Id: I5888dd97bac20ddf60456c81ffc1eb8df04ef410
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The tortoiseplink command does not understand -batch, even though
it smells like the putty plink command that does use it. Don't add
-batch if GIT_SSH is tortoiseplink.
Change-Id: I638532a02faa2caf8c39d482094e7ff4f4ec7e78
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When GIT_SSH is set to use plink, the correct option name is "-batch"
and not "--batch". This was a typo introduced when we added support
for plink via GIT_SSH.
Change-Id: I391660e38f5d208bba11e3f2a8f25922de2af878
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When checking whether a file in the working tree has been modified -
WorkingTreeIterator.isModified() - we should not trust the filemode
in case of symbolic links, but check the timestamp and also the
content, if requested. Without this fix symlinks will always be shown
in EGit as modified files on Windows systems.
Change-Id: I367c807df5a7e85e828ddacff7fee7901441f187
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
FileWriter uses the platform default encoding, which might not
be UTF-8. JGit prefers UTF-8 everywhere for string encodings,
so make the unit tests more predictable by ensuring use of UTF-8.
Change-Id: I75bb9f962ee230b73ca3a942bffd7a8a28674ba5
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Sasa pointed out we only ever use the length here, so instead of
holding onto the AbbreviatedObjectId, lets just hold onto the length
as a primitive int.
Change-Id: I2444f59f9fe5ddcaea4a3537d3f1064736ae3215
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
CC: Sasa Zivkov <zivkov@gmail.com>
JGit's internal implementation of the HTTP digest authentication
method wasn't conforming to RFC 2617 (HTTP Authentication: Basic
and Digest Access Authentication), resulting in authentication
failures when connecting to a digest protected site.
The code now more accurately matches section 3.2.2 (The Authorization
Request Header) from the standards document.
Change-Id: If41b5c2cbdd59ddd6b2dea143f325e42cd58c395
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The java.io.File methods for creating directories report failure by
returning false. To ease proper checking of return values provide
utility methods wrapping mkdir() and mkdirs() which throw IOException
on failure.
Also fix the tests to store test data under a trash folder and cleanup
after test.
Change-Id: I09c7f9909caf7e25feabda9d31e21ce154e7fcd5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
If DiffFormatter is asked to compare the index to the working tree,
it can go faster by using the cached stat information to compare
the two entries rather than relying on SHA-1 computation alone.
Change-Id: Icb21c15b8279ee8cee382e5e179e0cf8903aee4d
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This is needed to ensure interoperability with the command line: if
the git-rebase-todo file was created manually (by git rebase -i in the
command line), and any commands other than pick are used (reword,
edit, fixup, squash) JGit must abort as it does not understand these
commands yet.
The same is true if an unknown command is found (e.g. due to a typo);
this is the same behavior as shown by the command line.
Change-Id: I2322014f69460361f7fc09da223e8a5c31f100dd
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Always use streaming (for SHA-checksum & collision detection)
when indexing whole blobs, regardless of their size.
Positives:
* benefits of bugfix #312868 will apply to all runtimes, without
additional conf for mem-constrained JVMs (5MB huge for some)
* no byte array allocation
(re-uses readBuffer instead of allocating new full-size array)
* mildly better overall performance
(given the usual blob-does-not-need-collision-checking case)
* removes unnecessary code
Negative:
* doubles the disk IO for a blob comparision
(comparitively rare occurance)
I perf-tested a range of threshold sizes against a random selection
of packfiles I found on my harddrive, the results are here:
https://spreadsheets.google.com/ccc?key=tLCQElyyd2RKN9QevfvgwGQ&hl=en_GB#gid=1
My interpretation of the results is that the streaming size threshold
isn't beneficial (actually seems to be very slightly detrimental) -so
we should just get rid of it. This tallies with some of the comments
Shawn & I had for the default value of streamFileThreshold in the
review for I862afd4c:
http://egit.eclipse.org/r/#patch,sidebyside,2040,2,org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java
The perf-test code is here: https://gist.github.com/735402
It's a bit scruffy but basically does 10 runs (in randomised order)
for each threshold size on various packfiles, waiting a second
between each pack-indexing to allow GC to catch up. I know it's not
perfect - proper perf testing is hard to do :-)
Shawn Pearce
roberto
Robin Rosenberg
Mathias Kinzler
Chris Aniszczyk
Matthias Sohn
Philipp Thun