Adds the file content merge alorithm and tests for merge to jgit.
The merge algorithm:
- Gets as input parameters the common base, the two new contents
called "ours" and "theirs".
- Computes the Edits from base to ours and from base to theirs with
the help of MyersDiff.
- Iterates over the edits.
- Independent edits from ours or from theirs will just be applied
to the result.
- For conflicting edits we first harmonize the ranges of the edits
so that in the end we have exactly two edits starting and ending
at the same points in the common base. Then we write the two
conclicting contents into the result stream.
Change-Id: I411862393e7bf416b6f33ca55ec5af608ff4663
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
[sp: Fixed up two awkard comments in documentation.]
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The UnionInputStream utility class combines multiple sequential
InputStreams so they appear to the caller as a single stream with
no gaps. This can be used to concentate streams coming from multiple
independent HTTP connections (for example).
The companion unit test covers the class's full functionality.
Change-Id: I0676c7b5e082a5886bf0e8f43f9fd6c46a666228
Signed-off-by: Shawn O. Pearce <sop@google.com>
This exposes the list of known packs, allowing callers to list them
into a context like the objects/info/packs file.
Change-Id: I0b889564bd176836ff5c77ba310c6d229409dcd5
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Tycho isn't production ready for projects like JGit to be using as
their primary build driver. Some problems we ran into with Tycho
0.6.0 that are preventing us from using it are:
* Tycho can't run offline
The P2 artifact resolver cannot perform its work offline. If the
build system has no network connection, it cannot compile a
project through Tycho. This is insane for a distributed version
control system where developers are used to being offline during
development and local testing.
* Magic state in ~/.m2/repository/.meta/p2-metadata.properties
Earlier iterations of this patch tried to use a hybrid build,
where Tycho was only used for the Eclipse specific feature and P2
update site, and maven-bundle-plugin was used for the other code.
This build seemed to work, but only due to magic Tycho specific
state held in my local home directory. This means builds are not
consistently repeatable across systems, and lead me to believe
I had a valid build, when in fact I did not.
* Manifest-first build produces incomplete POMs
The POM created by the manifest-first build format does not
contain the dependency chain, leading a downstream consumer to
not import the runtime dependencies necessary to execute the
bundle it has imported. In JGit's case, this means JSch isn't
included in our dependency chain.
* Manifest-first build produces POMs unreadable by Maven 2.x
JGit has existing application consumers who are relying on
Maven 2.x builds. Forcing them to step up to an alpha release
of Maven 3 is simply unacceptable.
* OSGi bundle export data management is tedious
Editing each of our pom.xml files to mark a new release is
difficult enough as it is. Editing every MANIFEST.MF file to
list our exported packages and their current version number is
something a machine should do, not a human. Yet the Tycho OSGi
way unfortunately demands that a human do this work.
* OSGi bundle import data management is tedious
There isn't a way in the MANIFEST.MF file format to reuse the
same version tags across all of our imports, but we want to have
a consistent view of our dependencies when we compile JGit.
After wasting more than 2 full days trying to get Tycho to work,
I've decided its a lost cause right now. We need to be chasing down
bugs and critical features, not trying to bridge the gap between
the stable Maven repository format and the undocumented P2 format
used only by Eclipse.
So, switch the build to use Apache Felix's maven-bundle-plugin.
This is the same plugin Jetty uses to produce their OSGi bundle
manifests, and is the same plugin used by the Apache Felix project,
which is an open-source OSGi runtime. It has a reasonable number
of folks using it for production builds, and is running on top of
the stable Maven 2.x code base.
With this switch we get automatically generated MANIFEST.MF files
based on reasonably sane default rules, which reduces the amount
of things we have to maintain by hand. When necessary, we can add
a few lines of XML to our POMs to tweak the output.
Our build artifacts are still fully compatible with Maven 2.x, so
any downstream consumers are still able to use our build products,
without stepping up to Maven 3.x. Our artifacts are also valid as
OSGi bundles, provided they are organized on disk into a repository
that the runtime can read.
With maven-bundle-plugin the build runs offline, as much as Maven
2.x is able to run offline anyway, so we're able to return to a
distributed development environment again.
By generating MANIFEST.MF at the top level of each project (and
therefore outside of the target directory), we're still compatible
with Eclipse's PDE tooling. Our projects can be imported as standard
Maven projects using the m2eclipse plugin, but the PDE will think
they are vaild plugins and make them available for plugin builds,
or while debugging another workbench.
This change also completely removes Tycho from the build.
Unfortunately, Tycho 0.6.0's pom-first dependency resolver is broken
when resolving a pom-first plugin bundle through a manifest-first
feature package, so bundle org.eclipse.jgit can't be resolved,
even though it might actually exist in the local Maven repository.
Rather than fight with Tycho any further, I'm just declaring it
plugina-non-grata and ripping it out of the build.
Since there are very few tools to build a P2 format repository, and
no documentation on how to create one without running the Eclipse
UI manually by poking buttons, I'm declaring that we are not going
to produce a P2 update site from our automated builds.
Change-Id: If7938a86fb0cc8e25099028d832dbd38110b9124
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This makes the jgit command line behave like the C Git implementation
in the respect.
These variables are not recognized in the core, though we add support
to do the overrides there. Hence other users of the JGit library, like
the Eclipse plugin and others, will not be affected.
GIT_DIR
The location of the ".git" directory.
GIT_WORK_TREE
The location of the work tree.
GIT_INDEX_FILE
The location of the index file.
GIT_CEILING_DIRECTORIES
A colon (semicolon on Windows) separated list of paths that
which JGit will not cross when looking for the .git directory.
GIT_OBJECT_DIRECTORY
The location of the objects directory under which objects are
stored.
GIT_ALTERNATE_OBJECT_DIRECTORIES
A colon (semicolon on Windows) separated list of object directories
to search for objects.
In addition to these we support the core.worktree config setting when
the git directory is set deliberately instead of being found.
Change-Id: I2b9bceb13c0f66b25e9e3cefd2e01534a286e04c
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
An extra flag when creating a RefUpdate object allows the
caller to destroy the symref and replace it with an object
ref, a.k.a. detached HEAD.
Change-Id: Ia88d48eab1eb4861ebfa39e3be9258c3824a19db
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
A few locations were doing OBJECT_ID_LENGTH * 2 on their own, as
the old STR_LEN constant wasn't visible. Replace them with the
new public constant OBJECT_ID_STRING_LENGTH.
Change-Id: Id39bddb52de8c65bb097de042e9d4ed99598201f
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Since Constants.OBJECT_ID_LENGTH is a compile time constant we
can be sure that it will always be inlined. The same goes for the
associated constant STR_LEN which is now refactored to the Constant
class and given a name better suited for wider use.
Change-Id: I03f52131e64edcd0aa74bbbf36e7d42faaf4a698
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
The comment indicates that a well-behaved client should not have
sent an update for a ref that already exists, but this in a block
that corresponds to a create command.
This way SWT based applications don't wind up loading this AWT
based code when using SSH.
Change-Id: I9080f3dd029c2a087e6b687480018997cc5c5d23
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This makes it easier to swap out authenticator implementations and
yet still rely upon being able to configure at least one Authenticator
instance in the JVM and program it with data obtained from outside
of the user interface.
Change-Id: I8c1a0eb8acee1d306f4c3b40a790b7fa0c3abb70
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Drop our simple and stupid jgit.sh and instead rely upon Maven
for the command line based build. Maven is relatively simple to
download and install, and doesn't require the entire Eclipse IDE.
To avoid too much refactoring of the current code we reuse the
existing src/ directory within each plugin, and treat each of
the existing OSGI bundles as one Maven artifact.
The command line wrapper jgit.sh no longer works in the uncompiled
state, as we don't know where to obtain our JSch or args4j from.
Developers will now need to compile it with `mvn package`, or run
our Main class from within an IDE which has the proper classpath.
Bug: 291265
Change-Id: I355e95fa92fa7502651091d2b651be6917a26805
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This new UI bundle contains the org.eclipse.jgit.awtui package,
which was moved out of the org.eclipse.jgit bundle.
org.eclipse.jgit.pgm depends on org.eclipse.jgit.ui, so we need
to update the classpath and make_jgit.sh to include it.
This move takes the awtui classes out of the Maven build, which
means we are no longer able to distribute these classes to our
downstream Maven customers. The entire Maven package structure
needs to be overhauled so that Eclipse bundle matches 1:1 with the
Maven artifact.
Bug: https://bugs.eclipse.org/291124
Change-Id: Ibf1a9968387e3d11fdce54592f710ec4cc7f1ddb
Signed-off-by: Mykola Nikishov <mn@mn.com.ua>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
For historical reasons JGit was creating .git/remotes folder when
initialization an empty repository. However, this folder is never
used and the new Git repository format doesn't contain them.
Removed the unnecessary remotes folder creation, it was removed from
C Git in 75c384efb52d ("Do not create $GIT_DIR/remotes/ directory
anymore") by Junio C Hamano on Dec 19 2006. C Git hasn't made it
for almost 3 years.
Change-Id: I5473f3676a3642afdf9aaac44b7e6319c6e170b9
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
According the javadoc, and implied by the name of the class, NB
is about network byte order. The purpose of moving the IO only,
and non-byte order related functions to another class is to
make it easier for new contributors to understand that they
can use these functions in general and it's also makes it easier
to understand where to put new IO related utility functions
Change-Id: I4a9f6b39d5564bc8a694b366e7ff3cc758c5181b
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Our project coding conventions do not want trailing whitespace at
the end of a source code line. Configure Eclipse to automatically
remove them when saving any Java source file.
Change-Id: I9701366b3b1240879761b30556e6ff416e969e1d
Reviewed-by: Mykola Nikishov <mn@mn.com.ua>
Reviewed-by: Alex Blewitt <alex.blewitt@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
As discussed on the egit-dev mailing list, we prefer not to have
trailing whitespace in our source code. Correct all currently
offending lines by trimming them.
Change-Id: I002b1d1980071084c0bc53242c8f5900970e6845
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This change only fixes warnings of the eclipse build regarding missing javadocs.
Some comments where just missing, so they have been added. Other comments where
at the wrong (from eclipse point of view) place, so eclipse was complaining.
Also two method which existed for debugging purposes have been removed to get
rid of Eclipse warngins about unused code.
MyersDiff was crashing with ArrayIndexOutOfBoundsException when
diffing huge files. This was because the snake data (begin and
end position while processing chunks of the text) was sequeezed
into a single int. But with longer texts to diff these values
exceeded the range of java int values. It is fixed by squeezing
the two ints into a long and by adding the LongList helper
class.
Change-Id: Iacb9082e1b076e994d1486aa8e512342ad7432b3
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
When reading commits the system default encoding was used if no
encoding was specified in the commit. The patch modifies the test
to add a check that commit message was encoded correctly (the
test fails on old implementation if system encoding is not UTF-8)
and fixes Commit.decode() method to use UTF-8 if encoding is not
specified in the commit object.
Change-Id: I27101da3c2eb6edd0c4a9e4c0523e48b286e3cd5
Signed-off-by: Constantine Plotnikov <constantine.plotnikov@gmail.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This commit contains fixes provided by Christian Halstrick.
Bug: 291083
Eclipse-CQ: 3559
Change-Id: If8d187e70a51f31040f99098489e513791dc6415
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Myers' algorithm is the standard way to generate diff scripts in
an efficient manner (especially memory-wise).
The source contains extensive documentation about the principal
ideas of the algorithm.
Bug: 291083
Eclipse-CQ: 3559
Change-Id: Id873e7c2c204692cb4a1a05d24b733154b9ed49c
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Some applications may wish to modify an int list.
Bug: 291083
Eclipse-CQ: 3559
Change-Id: Iea871443ec661230aec92397229f1eda6c74216f
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Our project plan calls for us to build 0.6 as the next version,
but I forgot to also update the MANIFEST.MF for the plugin when
I edited the Maven pom.
Change-Id: Ic1a6c64374a4384a65a3dd0306adddfc73adac52
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This is the last chunk of code in jgit-core which references the awtui
package. Moving it to the only consumer in jgit-pgm allows us to move
the awtui package over to the jgit-awtui module.
Change-Id: I2fd81be2076117b2f2c5f8ed45de7f29272af6cf
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This removes one of the few remaining dependencies on AWTAuthenticator
from the core library. For the most part the interface is identical to
the prior main method. The jgit-pgm Main class already sets up the
HTTP proxy and authenticator for us, so we don't need to do that in
our new run method.
Change-Id: Ia2cce34d34c97b88214a8bd8f2cc542845e19032
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
We now supply an exported format description for anyone to import
into their own workbench, and all projects reference this style in
a consistent way.
Change-Id: Ic243544a761ef2db29025a89ba6bb932a3a3ce34
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Honor the configuration parameter core.logAllRefUpdates when writing
reflogs. Instead of writing reflog entries always only write
reflogs if this parameter is set to true or if the corresponding
file in the <git-dir>/logs directory already exists. In other words:
if you are updating a ref and this parameter is set to false and
there is no file corresponding to your ref in the <git-dir>/logs
folder then no reflog will be written.
This is a fix for the issue http://code.google.com/p/egit/issues/detail?id=4
Change-Id: I908e4c77e3630dc3223b2d2a47cb4534dbe4ed42
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Recently Eclipse started complaining about undocumented protected
members here, so lets document them to make the errors go away.
Change-Id: Ia3bc9fa69854953db5dc9a982821a2f3abe8d05a
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This allows SwingGraphPanes to be reused by simply clearing and
re-filling. Requires RevObjectList initialization to not call clear()
from its constructor, because this will lead PlotCommitList.clear()
to be called before all variables have been initialized.
Change-Id: I14a07124441b58cd88c67da088ba52ef9c30b043
Signed-off-by: Jonas Fonseca <fonseca@diku.dk>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When throwing MissingBundlePrerequisiteException we
also include the short description, if available, of
each missing object.
This is the fix for the following issue:
http://code.google.com/p/egit/issues/detail?id=25
Change-Id: I5d45aec7873af76a12170d9a500626a7264f2c42
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
- We shouldn't be re-exporting bundles, JSch in this case.
Instead used a Import-Package clause.
- Some packages weren't exported. In Eclipse we have a policy to
export all the packages in a bundle
- Exporting version numbers on the export packages.
Bug: 291108
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Per CQ 3448 this is the initial contribution of the JGit project
to eclipse.org. It is derived from the historical JGit repository
at commit 3a2dd9921c8a08740a9e02c421469e5b1a9e47cb.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce
Christian Halstrick
Shawn O. Pearce
Robin Rosenberg
Nico Sallembien
Mykola Nikishov
Igor Fedorenko
Sasa Zivkov
Alex Blewitt
Constantine Plotnikov
Johannes Schindelin
Jonas Fonseca
Chris Aniszczyk
Git Development Community