Instead of resizing an ArrayList until all objects have been added,
append objects into a specialized List type that uses small arrays
of 1024 entries for each 1024 objects added.
For a large repository like linux-2.6, PackWriter will now allocate
1,758 smaller arrays to hold the object list, without creating any
garbage from the intermediate states due to list expansion.
1024 was chosen as the block size (and initial directory size) as this
is a reasonable balance for the PackWriter code. Each block uses
approximately 4096 bytes in a 32 bit JVM, as does the default top
level block directory. The top level directory doesn't expand until 1
million items have been added to the list, which for linux-2.6 won't
yet occur as the lists are per-object-type and are thus bounded to
about 1/3 of 1.8 million.
Change-Id: If9e4092eb502394c5d3d044b58cf49952772f6d6
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The mapTree() routines have been deprecated for a long time, and their
sibilings for mapCommit() and mapTag() were already removed from the
main Repository API.
Remove mapTree(). Application callers who only need the tree's name
can use resolve("^{tree}") syntax to resolve to the tree ObjectId, or
fail if the input is not a tree.
Applications that want to read a tree should use DirCache or TreeWalk.
Change-Id: I85726413790fc87721271c482f6636f81baf8b82
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This interface has been deprecated for a while now.
Applications can use a TreeWalk instead.
Change-Id: I751d6e919e4b501c36fc36e5f816b8a8c5379cb9
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This has been deprecated for some time now. Applications should
instead use DirCache within a TreeWalk.
Change-Id: I8099d93f07139c33fe09bdeef8d739782397da17
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This class has been deprecated for a long time now.
Time to remove it. Applications can use the newer
DirCacheCheckout class as a replacement.
Change-Id: Id66d29fcca5a7286b8f8838303d83f40898918d2
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This interface has been deprecated for a long time now.
Time to remove it.
Change-Id: I29a938657e4637b2a9d0561940b38d70866613f7
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Bug 317411 (Push does not update remote tracking branch) is assigned to
JGit. This test verifies that JGit does the right thing.
Bug: 317411
Change-Id: I8f632e3e6c8a4f16a1170b1dba92e8fd3d6267d0
When parsing a string such as "foo-gbed2" resolve() was assuming the
suffix was from git describe output. This lead to JGit trying to find
the completion for the object abbreviation "bed2", rather than using
the current value of the reference. If there was only one such object
in the repository, JGit might actually use the wrong value here, as
resolve() would return the completion of the abbreviation "bed2"
rather than the current value of the reference "refs/heads/foo-gbed2".
Move the parsing of git describe abbreviations out of the operator
portion of the resolve() method and into the simple portion that is
supposed to handle only object ids or reference names, and only do the
describe parsing after all other approaches have already failed to
provide a resolution.
Add new unit tests to verify the behavior is as expected by users.
Bug: 338839
Change-Id: I52054d7b89628700c730f9a4bd7743b16b9042a9
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Applications may already have a Ref or ObjectId on hand that they want
the remote to be updated to. Instead of converting these into a
String and relying on the parsing rules of resolve(), allow the
application to supply the Ref or ObjectId directly.
Bug: 338839
Change-Id: If5865ac9eb069de1c8f224090b6020fc422f9f12
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Checkout of remote tracking branch failed when no local branch
existed. Also enhance RepositoryTestCase to enable checking index
state of another test repository.
Bug: 337695
Change-Id: Idf4c05bdf23b5161688818342b2bf9a45b49f479
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Previously, this method would not (always) work when a recursive path
such as "a/b" was passed into it.
Change-Id: I0752a1f5fc7fef32064d8f921b33187c0bdc7227
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
If the RevFilter doesn't actually require the commit body,
we shouldn't reparse it if the body was disposed. This happens
often inside of UploadPack during common ancestor negotation, the
RevWalk is reset and re-run over roughly the same commit space,
but the bodies are discarded because the commit message is not
relevant to the process.
Change-Id: I87b6b6a5fb269669867047698abf718d366bd002
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Because of change I28ae5713, the commit message lost the "into HEAD" and
caused the MergeCommandTest to fail. This change fixes it.
Bug: 336059
Change-Id: Ifac0138c6c6d66c40d7295b5e11ff3cd98bc9e0c
When MergeMessageFormatter was given a symbolic ref HEAD which points to
refs/heads/master (which is the case when merging a branch in EGit), it
would result in a merge message like the following:
Merge branch 'a' into HEAD
But it should print the following (as C Git does):
Merge branch 'a'
The solution is to use the leaf ref when checking for refs/heads/master.
Change-Id: I28ae5713b7e8123a0176fc6d7356e469900e7e97
There is no point in pushing all of the files within the edge
commits into the delta search when making a thin pack. This floods
the delta search window with objects that are unlikely to be useful
bases for the objects that will be written out, resulting in lower
data compression and higher transfer sizes.
Instead observe the path of a tree or blob that is being pushed
into the outgoing set, and use that path to locate up to WINDOW
ancestor versions from the edge commits. Push only those objects
into the edgeObjects set, reducing the number of objects seen by the
search window. This allows PackWriter to only look at ancestors
for the modified files, rather than all files in the project.
Limiting the search to WINDOW size makes sense, because more than
WINDOW edge objects will just skip through the window search as
none of them need to be delta compressed.
To further improve compression, sort edge objects into the front
of the window list, rather than randomly throughout. This puts
non-edges later in the window and gives them a better chance at
finding their base, since they search backwards through the window.
These changes make a significant difference in the thin-pack:
Before:
remote: Counting objects: 144190, done
remote: Finding sources: 100% (50275/50275)
remote: Getting sizes: 100% (101405/101405)
remote: Compressing objects: 100% (7587/7587)
Receiving objects: 100% (50275/50275), 24.67 MiB | 9.90 MiB/s, done.
Resolving deltas: 100% (40339/40339), completed with 2218 local objects.
real 0m30.267s
After:
remote: Counting objects: 61549, done
remote: Finding sources: 100% (50275/50275)
remote: Getting sizes: 100% (18862/18862)
remote: Compressing objects: 100% (7588/7588)
Receiving objects: 100% (50275/50275), 11.04 MiB | 3.51 MiB/s, done.
Resolving deltas: 100% (43160/43160), completed with 5014 local objects.
real 0m22.170s
The resulting pack is 13.63 MiB smaller, even though it contains the
same exact objects. 82,543 fewer objects had to have their sizes
looked up, which saved about 8s of server CPU time. 2,796 more
objects from the client were used as part of the base object set,
which contributed to the smaller transfer size.
Change-Id: Id01271950432c6960897495b09deab70e33993a9
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Sigend-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Enhance the Git API to support cloning repositories.
Bug: 334763
Change-Id: Ibe1191498dceb9cbd1325aed85b4c403db19f41e
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
After consulting with Christian Halstrick, it turned out that the
handling of rebase during pull was implemented incorrectly.
Change-Id: I40f03409e080cdfeceb21460150f5e02a016e7f4
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
The new addIfAbsent() method combines get() with add(), but does
it in a single step so that the common case of get() returning null
for a new object can immediately insert the object into the map.
Change-Id: Ib599ab4de13ad67665ccfccf3ece52ba3222bcba
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Rebase must honor the upstream configuration
branch.<branchname>.rebase
Change-Id: Ic94f263d3f47b630ad75bd5412cb4741bb1109ca
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
This bug was hidden by an incomplete test: the current Rebase
implementation using the "git rebase -i" pattern does not work
correctly if fast-forwarding is involved. The reason for this is that
the log command does not return any commits in this case.
In addition, a check for already merged commits was introduced to
avoid spurious conflicts.
Change-Id: Ib9898fe0f982fa08e41f1dca9452c43de715fdb6
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Properly handle return value of java.io.File.createNewFile().
Change-Id: I3a74cc84cd126ca1a0eaccc77b2944d783ff0747
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
java.io.File.mkdir() and mkdirs() report failure as an exceptional
return value false. Fix the code which silently ignored this
exceptional return value.
Change-Id: I41244f4b9d66176e68e2c07e2329cf08492f8619
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This problem surfaced since EGit Core ResetOperationTest is failing
since change I26806d21. JGit detected checkout conflict for untracked
files which never were tracked by the repository.
"git reset --hard" in c git also doesn't remove such untracked files.
Change-Id: Icc8e1c548ecf6ed48bd2979c81eeb6f578d347bd
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
When DirCacheCheckout was checking out it was silently
overwriting untracked files. This is only ok if the
files are also ignored. Untracked and not ignored files
should not be overwritten. This fix adds checks for
this situation.
Because this change in the behaviour also broke tests
which expected that a checkout will overwrite untracked
files (PullCommandTest) these tests have to be modified
also.
Bug: 333093
Change-Id: I26806d2108ceb64c51abaa877e11b584bf527fc9
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
By moving the logic that parses a pack stream from the network (or
a bundle) into a type that can be constructed by an ObjectInserter,
repository implementations have a chance to inject their own logic
for storing object data received into the destination repository.
The API isn't completely generic yet, there are still quite a few
assumptions that the PackParser subclass is storing the data onto
the local filesystem as a single file. But its about the simplest
split of IndexPack I can come up with without completely ripping
the code apart.
Change-Id: I5b167c9cc6d7a7c56d0197c62c0fd0036a83ec6c
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
RevFilter.include()'s documentation promises the RevCommit's
body is parsed before include is invoked. This wasn't always
true if the commit was parsed once, had its body discarded,
the RevWalk was reset() and started a new traversal.
Change-Id: Ie5cafde09ae870712b165d8a97a2c9daf90b1dbd
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Additionally, defined the NoteMap.getNote method which returns a Note
instance. These changes were necessary to enable implementation of
the NoteMerger interface (the merge method needs to instantiate a
Note) and to enable direct use of NoteMerger which expects instances
of Note class as its paramters. Implementing creation of code review
summary notes in Gerrit [1] will make use of both of these features.
[1] https://review.source.android.com/#change,20045
Change-Id: I627aefcedcd3434deecd63fa1d3e90e303b385ac
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
The java.io.File.createNewFile() method for creating new empty files
reports failure by returning false. To ease proper checking of return
values provide a utility method wrapping createNewFile() throwing
IOException on failure.
Change-Id: I42a3dc9d8ff70af62e84de396e6a740050afa896
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
If remote branches are present they can not be added
to the RefMap from the local branches - the two RefMaps
have a different value of 'prefix' and consequently an
IllegalArgumentException is thrown.
A test in NLSTest was mixing the "old" and the "new" way of handling
concurrency. This change makes use of the java.util.concurrent facilities to
control concurrency and removes the code that was directly dealing with Thread
objects.
Change-Id: Ie7267776e988a48a5443f0f3fe4eb43e79eee4b1
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Merging Git notes branches has several differences from merging "normal"
branches. Although Git notes are initially stored as one flat tree the
tree may fanout when the number of notes becomes too large for efficient
access. In this case the first two hex digits of the note name will be
used as a subdirectory name and the rest 38 hex digits as the file name
under that directory. Similarly, when number of notes decreases a fanout
tree may collapse back into a flat tree. The Git notes merge algorithm
must take into account possibly different tree structures in different
note branches and must properly match them against each other.
Any conflict on a Git note is, by default, resolved by concatenating
the two conflicting versions of the note. A delete-edit conflict is, by
default, resolved by keeping the edit version.
The note merge logic is pluggable and the caller may provide custom
note merger that will perform different merging strategy.
Additionally, it is possible to have non-note entries inside a notes
tree. The merge algorithm must also take this fact into account and
will try to merge such non-note entries. However, in case of any merge
conflicts the merge operation will fail. Git notes merge algorithm is
currently not trying to do content merge of non-note entries.
Thanks to Shawn Pearce for patiently answering my questions related to
this topic, giving hints and providing code snippets.
Change-Id: I3b2335c76c766fd7ea25752e54087f9b19d69c88
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Patterns containing only a trailing slash have to be treated
as "global" patterns. For example: "classes/" matches "classes"
as well as "dir/classes" directory.
When an application asks for the names in a section, it may want to
see the existing case that was stored by the user. For example,
Gerrit Code Review wants to store a configuration block like:
[access "refs/heads/master"]
label-Code-Review = group Developers
and although the name label-Code-Review is case-insensitive, it wants
to display the case as it appeared in the configuration file.
When enumerating section names or variable names (both of which are
case-insensitive), Config now keeps track of the string that first
appeared, and presents them in file order, permitting applications to
use this information. To maintain case-insensitive behavior, the
contains() method of the returned Set<String> still performs a
case-insensitive compare.
This is a behavior change if the caller enumerates the returned
Set<String> and copies it to his own Set<String>, and then performs
contains() tests against that, as the strings are now the original
case from the configuration block. But I don't think anyone actually
does this, as the returned sets are immutable and are cached.
Change-Id: Ie4e060ef7772958b2062679e462c34c506371740
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
We will need to iterate over all notes of a NoteMap, at least this will be
needed for testing purposes. This change also implied making the Note class
public.
Change-Id: I9b0639f9843f457ee9de43504b2499a673cd0e77
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
Set the plugin version in the top-level pom, not the unit test pom.
This ensures the same plugin is used for all JUnit tests within the
overall project.
Drop the include **/*Test.java definition, as its no longer necessary
with the JUnit 4 based test suite. All of the test classes now end
with "Test" and include @Test annotations on the test methods.
Change-Id: Ib2c180bf531e1a97e31979fcc281fa0fc5a1abb3
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
These test classes needed new @Test annotations to be found by the
JUnit 4 test runner.
Change-Id: I61b6a8ebd468fa2d13fad5bf9cbd8f81a6f67e41
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This is almost reverted cherry-pick, and the implementation is
almost identical. It orders the input to merge differently to get
the effect and produces a different commit message with the
default author, rather than the original author.
Change-Id: I39970091d9f7406ae7168b8efaab23a5e2c16bad
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
The other one gets installed with SWTBot, but you do not
need it if you do not hack EGit. Using import-package
instead of require-bundle fixes the dependency. Actually
we do not need hamcrest at this time, but JUnit wants it.
Change-Id: I59873618f86d02e8439d40c1f322ea8e5c4fe3fc
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
The test was never run from maven, because its name did not end
in a way that was recognized by the pom. After rename it failed
because it did not find its resources.
Rename test class and move resources to the resources folder
Change-Id: I74a7ef1373cd902e1d05ff6ea38f8648b5fc5700
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Eclipse has some problem re-running single JUnit tests if
the tests are in Junit 3 format, but the JUnit 4 launcher
is used. This was quite unnecessary and the move was not
completed. We still have no JUnit4 test.
This completes the extermination of JUnit3. Most of the
work was global searce/replace using regular expression,
followed by numerous invocarions of quick-fix and organize
imports and verification that we had the same number of
tests before and after.
- Annotations were introduced.
- All references to JUnit3 classes removed
- Half-good replacement for getting the test name. This was
needed to make the TestRngs work. The initialization of
TestRngs was also made lazily since we can not longer find
out the test name in runtime in the @Before methods.
- Renamed test classes to end with Test, with the exception
of TestTranslateBundle, which fails from Maven
- Moved JGitTestUtil to the junit support bundle
Change-Id: Iddcd3da6ca927a7be773a9c63ebf8bb2147e2d13
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Shawn O. Pearce
Tomasz Zarna
Robin Stocker
Matthias Sohn
Jesse Greenwald
Chris Aniszczyk
Mathias Kinzler
Christian Halstrick
Sasa Zivkov
Roberto Tyley
Marc Strapetz
Robin Rosenberg