The places where ResolveMerger was doing content merges have been
refactored. The goal was to have one single method where content merge
was done and to factor out other topics (updating the index, updating
the working tree) into own methods. This was done to allow adding
pluggable content mergers in change
I7817e2123d254f3eeb315b47a61d2c55bd202c12
Change-Id: I8529697b197372a284bcd5ab2c9ba1adb925a520
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
This will allows calling classes to handle lock failures
without checking against the message and will also provide
access to the file that could not be locked.
Change-Id: I95bc59e1330a7af71ae3b0485c4516299193f504
Revision strings such as 'master@{0}' can now be resolved
by Repository.resolve by reading the reflog for the ref and
returning the commit for the entry number specified.
This still throws an exception for cases not supported
such as 'master@{yesterday}'.
Change-Id: I6162777d6510e083565a77cac4545cda5a9aefb3
This only works with Eclipse 3.6 and newer and requires installation
of new package. Documentation is not very good, but there is a blog
about it here:
http://eclipseandjazz.blogspot.com/2011/10/of-invalid-references-to-system.html
API checking is especially useful on OS X where Java5 is not readily
available.
Change-Id: I3c0ad460874a21c073f5ac047146cbf5d31992b4
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
In order to generate API reports run: mvn clirr:clirr
The reports are generated to the folder
target/site/clirr-report.html under the respective
project.
In order to check API compatibility and fail the build
on incompatible changes run: mvn clirr:check
For now we compare the API against the latest release
1.1.0.201109151100-r.
Bug: 336849
Change-Id: I21baaf3a6883c5b4db263f712705cc7b8ab6d888
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Kevin Sawicki <kevin@github.com>
This also updates DiffFormatter to not write path lines
for entries that have the same object id
Bug: 361570
Change-Id: I830a78e2babf472503630a7aa020ebfd5c7e69c6
Once a pack has been committed with commitPack(), we know that the pack
list has changed but we don't re-scan the underlying storage.
Change-Id: Ia7b35df4442a5f5dfe7e817edcc77b44b5410d08
All setters for JGit API commands return the command instance, follow
the builder pattern.
Change-Id: Id2bbc3f1300bb179887c4d2d6dd72925bde55f24
Signed-off-by: Kevin Sawicki <kevin@github.com>
When ResolveMerger finds a path where it has to do a content merge it
will try the content merge and if that succeeds it'll add the newly
produced content to the index. For the FileMode of this new index entry
it blindly copies the FileMode it finds for that path in the common base
tree. If by chance the common base tree does not contain this path it'll
try to add FileMode 0 (MISSING) to the index.
One could argue that this can't happen: how can the ResolveMerger
successfully (with no conflicts) merge two contents if there is no
common base? This was due to another bug in ResolveMerger. It failed to
find out that for two files which differ only in the FileMode (e.g. 644
vs. 755) it should not try a content merge.
Change-Id: I7a00fe1a6c610679be475cab8a3f8aa4c08811a1
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Allows callers to effectively run multiple hooks and loggers without
modifying the UploadPack/ReceivePack interface.
Change-Id: I5b388816b63036ffff08ef3a9b857ccb764cb8c4
When MergeCommand hit checkout conflicts it did throw an internal JGit
exception org.eclipse.jgit.errors.CheckoutConflictException instead of
org.eclipse.jgit.api.errors.CheckoutConflictException which it
declares to throw. Hence translate the internal exception to the
exception declared in the API.
Bug: 327573
Change-Id: I1efcd93a43ecbf4a40583e0fc9d8d53cffc98cae
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
ReflogCommand command was throwing an incorrect exception type
when an IOException was wrapped and rethrown from the underlying
ReflogReader. The IOException cause is now provided to the thrown
exception as well.
Change-Id: I9f1842c2d414d3e9c658843f9b448bc18891748e
Since FileHeader provides toString() method (via DiffEntry) we could add
a similar method to HunkHeader.
Change-Id: I7886e5b8f775fa8e8478ac5af37d90b6ef677d8b
This will be the case on the initial commit to a repository
and the ref update should expect a non-existent ref
Change-Id: Iaa06e47e6e8cc4a0281c7683b367d4806dd980ea
There was a bug in history rendering which caused jgit to use too
many lanes in case lanes get repositioned. Looking at commit
90c11cbaeb in JGit was one example. Vadim
Dmitriev found the problem and the solution.
Bug: 365460
Change-Id: I6024265b7a593dcfd4fc612d0baf6652a0092ff4
Also-by: Vadim Dmitriev <dmgloss@mail.ru>
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
There was the possibility that during history rendering we draw a lane
"trough" a passed commit. Vadim Dmitriev found that out in bug 335818.
I added the needed check to that block of code where it was missing.
Bug: 335818
Change-Id: Ic944193b2aca55ff3eb0235d46afa60b7896aa0f
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
We do this for the the names that have an explicit scheme and
do it both ways. The URIish is parsed before decoding. Only
a few special characters are encoded for the path part of the
URI, i.e. space, non-ASCII and control characters. The percent
encoding is assumed to be a stream encoding so we interpret it
as UTF-8.
Change-Id: I82d1910df9472e21d7212a2b984ff7d8fb2cbf0f
There was the possibility that during history rendering we draw a lane
"trough" a passed commit. Vadim Dmitriev found that out in bug 335818.
I added the needed check to that block of code where it was missing.
Bug: 335818
Change-Id: Ic944193b2aca55ff3eb0235d46afa60b7896aa0f
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
This parallels the CGit behavior of always using refs/heads/master
when it matches the remote advertised HEAD commit.
Change-Id: I5a5cd1516b58d116e334056aba1ef7990697ec30
The method canAmend was added to RepositoryState. It returns true if
amending the HEAD commit is allowed in the current repository state.
Change-Id: Idd0c4eea83a23c41340789b7b877959b457d951e
Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>
When SSH user/password authentication failed this may have been caused
by changed credentials on the server side. When the SSH credentials of a
user change the SSH connection needs to be re-established and
credentials which may have been stored by the credentials provider
need to be reset in order to enable prompting for the new credentials.
Bug: 356233
Change-Id: I7d64c5f39b68a9687c858bb68a961616eabbc751
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Moves the check from inside the loop to outside the loop
and returns immediately if the HEAD advertisded ref is null
Change-Id: I539da6cafb4f73610b8e00259e32bd4d57f4f4cc
Commit 13931236b9ee2895a98ffdbdacbd0f895956d8a8 in C Git (2011-11-02)
changed the message format:
-Merge remote branch 'origin/foo'
+Merge remote-tracking branch 'origin/foo'
This change does the same in EGit to be consistent.
Change-Id: I7d9c5afa95771dbfe6079b5f89a10b248fee0172
Signed-off-by: Robin Stocker <robin@nibor.org>
Throw a NoHeadException when Repository.getFullBranch
returns null
Bug: 351543
Change-Id: I666cd5b67781508a293ae553c6fe5c080c8f4d99
Signed-off-by: Kevin Sawicki <kevin@github.com>
ReceivePack (and PackParser) can be configured with the
maxObjectSizeLimit in order to prevent users from pushing too large
objects to Git. The limit check is applied to all object types
although it is most likely that a BLOB will exceed the limit. In all
cases the size of the object header is excluded from the object size
which is checked against the limit as this is the size of which a BLOB
object would take in the working tree when checked out as a file.
When an object exceeds the maxObjectSizeLimit the receive-pack will
abort immediately.
Delta objects (both offset and ref delta) are also checked against the
limit. However, for delta objects we will first check the size of the
inflated delta block against the maxObjectSizeLimit and abort
immediately if it exceeds the limit. In this case we even do not know
the exact size of the resolved delta object but we assume it will be
larger than the given maxObjectSizeLimit as delta is generally only
chosen if the delta can copy more data from the base object than the
delta needs to insert or needs to represent the copy ranges. Aborting
early, in this case, avoids unnecessary inflating of the (huge) delta
block.
Unfortunately, it is too expensive (especially for a large delta) to
compute SHA-1 of an object that causes the receive-pack to abort.
This would decrease the value of this feature whose main purpose is to
protect server resources from users pushing huge objects. Therefore
we don't report the SHA-1 in the error message.
Change-Id: I177ef24553faacda444ed5895e40ac8925ca0d1e
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This allows callers to determine why the revert
did not complete successfully
Change-Id: Ie44bb8523cac388b63748bc69ebdd3c3a3665d06
Signed-off-by: Kevin Sawicki <kevin@github.com>
The DfsReader must offer every representation of an object that
exists on the local repository when PackWriter asks for them. This
is necessary to identify objects in the thin pack part that are also
in the cached pack that will be appended onto the end of the stream.
Without looking at all alternatives, PackWriter may pack the same
object twice (once in the thin section, again in the cached base
pack). This may cause the command line C version to go into an
infinite loop when repacking the resulting repository, as it may see
a delta chain cycle with one of those duplicate copies of the object.
Previously the DfsReader tried to avoid looking at packs that it
might not care about, but this is insufficient, as all versions
must be considered during pack generation.
Change-Id: Ibf4a3e8ea5c42aef16404ffc42a5781edd97b18e
Consider two objects A->B where A uses B as a delta base, and these
are in the same source pack file ordered as "A B".
If cached packs is enabled and B is also in the cached pack that
will be appended onto the end of the thin pack, and both A, B are
supposed to be in the thin pack, PackWriter must consider the fact
that A's base B is an edge object that claims to be part of the
new pack, but is actually "external" and cannot be written first.
If the object reuse system considered B candidates fist this bug
does not arise, as B will be marked as edge due to it existing in
the cached pack. When the A candidates are later examined, A sees a
valid delta base is available as an edge, and will not later try to
"write base first" during the writing phase.
However, when the reuse system considers A candidates first they
see that B will be in the outgoing pack, as it is still part of
the thin pack, and arrange for A to be written first. Later when A
switches from being in-pack to being an edge object (as it is part
of the cached pack) the pointer in B does not get its type changed
from ObjectToPack to ObjectId, so B thinks A is non-edge.
We work around this case by also checking that the delta base B
is non-edge before writing the object to the pack. Later when A
writes its object header, delta base B's ObjectToPack will have
an offset == 0, which makes isWritten() = false, and the OBJ_REF
delta format will be used for A's header. This will be resolved by
the client to the copy of B that appears in the later cached pack.
Change-Id: Ifab6bfdf3c0aa93649468f49bcf91d67f90362ca
Packs can contain up to 2^32-1 objects, which exceeds the range of a
Java int. Try harder to accept higher object counts in some cases by
using long more often when we are working with the object count value.
This is a trivial refactoring, we may have to make even more changes
to the object handling code to support more than 2^31-1 objects.
Change-Id: I8cd8146e97cd1c738ad5b48fa9e33804982167e7
Annotated tags are relatively rare and currently are scheduled in a
pack file near the commits, decreasing the time it takes to resolve
client requests reading tags as part of a history traversal.
Putting them first before the commits allows the storage system to
page in the tag area, and have it relatively hot in the LRU when
the nearby commit area gets examined too. Later looking at the
tree and blob data will pollute the cache, making it more likely
the tags are not loaded and would require file IO.
Change-Id: I425f1f63ef937b8447c396939222ea20fdda290f
This counter always was running 1 higher, because it incremented
after the queue was exhausted (and every object was processed). Move
increments to be after the queue has provided a result, to ensure
we do not show a higher in-progress count than total count.
Change-Id: I97f815a0492c0957300475af409b6c6260008463
Make the code more clear with a simple refactoring of the boolean
logic into a method that describes the condition we are looking
for on each pack file. A cached pack is possible if there exists
a tips collection, and the collection is non-empty.
Change-Id: I4ac42b0622b39d159a0f4f223e291c35c71f672c
Double ' characters are needed for variables to appear in
single quotes. Variables surrounded with a s single ' will
not be replaced when formatted
Change-Id: I0182c1f679ba879ca19dd81bf46924f415dc6003
Signed-off-by: Kevin Sawicki <kevin@github.com>
As the method name and its javadoc clearly state that this method can
return null we can ignore this FindBugs warning.
Change-Id: I366435e26eda5d910f5d1a907db51f08efd4bb8c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Stored in a weak concurrent hash map, which we clean up while iterating.
Usually the weak reference behavior should not be necessary because
PackWriters should be released with release(), but we still want to
avoid leaks when dealing with broken client code.
Change-Id: I337abb952ac6524f7f920fedf04065edf84d01d2
Memory usage is dominated by three terms:
- The maximum memory allocated to each delta window.
- The maximum size of a single file held in memory during delta search.
- ObjectToPack instances owned by the writer.
For the first two terms, rather than doing complex instrumentation of
the DeltaWindows, we just overestimate based on the config parameters
(though we may underestimate if the maximum size is not set).
For the ObjectToPack instances, we do some rough byte accounting of the
underlying Java object representation.
Change-Id: I23fe3cf9d260a91f1aeb6ea22d75af8ddb9b1939
Exposes essentially the same state machine to the programmer as is
exposed to the client via a ProgressMonitor, using a wrapper around
beginTask()/endTask().
Change-Id: Ic3622b4acea65d2b9b3551c668806981fa7293e3
Matthias Sohn
Christian Halstrick
Kevin Sawicki
Robin Rosenberg
Dave Borowitz
Tomasz Zarna
Jens Baumgart
Robin Stocker
Sasa Zivkov
Shawn O. Pearce