| Commit message (Collapse) | Author | Age | Files | Lines |
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A pack bitmap index is an additional index of compressed
bitmaps of the object graph. Furthermore, a logical API of the index
functionality is included, as it is expected to be used by the
PackWriter.
Compressed bitmaps are created using the javaewah library, which is a
word-aligned compressed variant of the Java bitset class based on
run-length encoding. The library only works with positive integer
values. Thus, the maximum number of ObjectIds in a pack file that
this index can currently support is limited to Integer.MAX_VALUE.
Every ObjectId is given an integer mapping. The integer is the
position of the ObjectId in the complete ObjectId list, sorted
by offset, for the pack file. That integer is what the bitmaps
use to reference the ObjectId. Currently, the new index format can
only be used with pack files that contain a complete closure of the
object graph e.g. the result of a garbage collection.
The index file includes four bitmaps for the Git object types i.e.
commits, trees, blobs, and tags. In addition, a collection of
bitmaps keyed by an ObjectId is also included. The bitmap for each entry
in the collection represents the full closure of ObjectIds reachable
from the keyed ObjectId (including the keyed ObjectId itself). The
bitmaps are further compressed by XORing the current bitmaps against
prior bitmaps in the index, and selecting the smallest representation.
The XOR'd bitmap and offset from the current entry to the position
of the bitmap to XOR against is the actual representation of the entry
in the index file. Each entry contains one byte, which is currently
used to note whether the bitmap should be blindly reused.
Change-Id: Id328724bf6b4c8366a088233098c18643edcf40f
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Change-Id: I4ab2baeb5d598d40d5dadfccdfe75152a1b9b7bf
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I0ca539e8cfe444f96c64dc56d1f0ef33b66e0cff
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I1a0fe51c71551fcfc98f5dd435eb283fd661b77a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Idc49f17d03886b6a1e61a94ff81e32625c8675d9
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I386ba70541d644e58661d26713b309371e0f9257
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I4aad3efdd435d8d5eb53c84a8d38132acce97c25
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Commit 9169e7f9ec281740b6d55586d91a82e4ea6d7399 failed to add
org.eclipse.jgit/META-INF/eclipse.inf in order to fix bug 372845 since
JGit is not yet built by Tycho. Hence explicitly including it.
Bug: 372845
Change-Id: I6cb12327a237d69fbfe3d5e77d8a6ad7de442ad5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I946e315af04227727ac937ebe9d70ae1ea4e8936
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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* stable-1.2:
Add API checking using clirr
Fix MergeCommandTest to pass if File.executable is not supported
Fix ResolveMerger not to add paths with FileMode 0
Change-Id: I86e7194a40acd6dfa3d433f1d17c01bdf5bb0d9c
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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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>
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Change-Id: I7a1ae73783c95041b59f047a7330e62e7f642149
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I9ec247135d93ef28d732e94f18d0ec1d0e2e6d44
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ib099ec93d8243b238641d79328216874532ab5eb
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Iadcec7e5973600e005cbdeb837fa197d3ae2ea86
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I1244f6639263d156a6f9e4530167e5eb1826a535
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I1b989d3101272632eacabe25a0b111ad0ff5bb3b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I8dda83cdbe88beba4a480df9846848bf3aceb9e2
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ie6d65fe45ad92c813ce3a227729aa43681922249
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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* stable-1.0:
Prepare post JGit v1.0.0.201106090707-r builds
JGit v1.0.0.201106090707-r
Include about.html files in maven build
Prepare post v1.0.0.201106081625-r builds
JGit v1.0.0.201106081625-r
Add missing about.html files to all shipped bundles
Prepare post v1.0.0.201106071701-r builds
JGit v1.0.0.201106071701-r
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Change-Id: I35292f9f6fb5ebc591308fdd2d069203413e189d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Iba44e71b6441a0e39122ca8666b51989e605f25f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ifa96090eb0fc336ee8080385f48212b5158dd9f7
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I5e6994844405f7839ad3b3439f98bcadb59d329b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I629990189083bab4737938ad712080fba7917582
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I67ee2912ef54462cf860dc4ec0a6334e9c619384
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ic8f49336ba96c8dcf4bab2f74c0f1efc1ab55131
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I4839877e1a6fa7782f37423213af8d579727a494
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I39f4a23cf284505395d511dfedf02b7f5608df95
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I4dec8eba7e35858aef65fcc10f91fad3fe5b52b9
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I574a05200471c431b3a02ac6ff208dc6aa90f539
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I4cf017cd567543846839612ab3ace6d26233e01d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I70fe2671321efb5c3d271121ce00299533d1b388
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ia6e58b466fa3ef7ddd61b40f2ad44141fe8786c4
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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In order to run the static checks run:
mvn -P static-checks clean install
Change-Id: I14077498a04be986ded123ddbfc97da8f9bc3130
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I508def09cb2d4e5bd27b412f4ad5d43984388749
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ibcef4fc4c986c2cda01e943d16aa1c53eff99f25
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I9ac2fdfb4326536502964ba614d37d0bd103f524
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ifcb8fdea95286779c8aea6bf4d7647e8c1c98d63
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I320f1f739f3689daf11d532a55ae1133785aec8e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I4a46d35d354193e5d4f28ef7dfae75944be8ffcf
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ic29310dc14f120ebdb49d33cbf4bd6d380ae1393
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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We need to use findbugs-maven-plugin:2.3.2-SNAPSHOT
since otherwise build fails with maven-3.0 [1], [2].
We should switch to the release version as soon
as this becomes available.
[1] http://www.sonatype.com/people/2010/10/maven-3-0-has-landed/
[2] http://jira.codehaus.org/browse/MFINDBUGS-122
Bug: 327799
Change-Id: I1c57f81cf6f0450e56411881488c4ee754e458e3
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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The maven 2 build for jgit source bundle didn't create a correct
OSGi version string, instead of
org.eclipse.jgit.source_0.10.0.<timestamp>
the generated OSGi version was
org.eclipse.jgit.source_0.10.0.SNAPSHOT
This caused trouble when trying to install it from p2 repository.
Bug: 327616
Change-Id: Ic27c763ae9a4bcbb5bd6ed9562cd98bb4da3386b
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I54815c85b32b9492c059064b39f48677e68c5e90
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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Change-Id: Ideab4923a5d8055f0e8a36ddcf0bc8adbf71c329
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I114106f3286c36f7d5e136748a7e5130f4da163f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I07a3391de03379f32ecfd055d45750e3860b2be4
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: Ic411b1b8a7e6039ae3ff567e2c9cdd5db84f4d41
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
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Change-Id: I84173ece5100f1fcb78168e2e102b649d9466c08
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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