blame: Compute the origin of lines in a result file
BlameGenerator digs through history and discovers the origin of each
line of some result file. BlameResult consumes the stream of regions
created by the generator and lays them out in a table for applications
to display alongside of source lines.
Applications may optionally push in the working tree copy of a file
using the push(String, byte[]) method, allowing the application to
receive accurate line annotations for the working tree version. Lines
that are uncommitted (difference between HEAD and working tree) will
show up with the description given by the application as the author,
or "Not Committed Yet" as a default string.
Applications may also run the BlameGenerator in reverse mode using the
reverse(AnyObjectId, AnyObjectId) method instead of push(). When
running in the reverse mode the generator annotates lines by the
commit they are removed in, rather than the commit they were added in.
This allows a user to discover where a line disappeared from when they
are looking at an older revision in the repository. For example:
blame --reverse 16e810b2..master -L 1080, org.eclipse.jgit.test/tst/org/eclipse/jgit/storage/file/RefDirectoryTest.java
( 1080) }
2302a6d3 (Christian Halstrick 2011-05-20 11:18:20 +0200 1081)
2302a6d3 (Christian Halstrick 2011-05-20 11:18:20 +0200 1082) /**
2302a6d3 (Christian Halstrick 2011-05-20 11:18:20 +0200 1083) * Kick the timestamp of a local file.
Above we learn that line 1080 (a closing curly brace of the prior
method) still exists in branch master, but the Javadoc comment below
it has been removed by Christian Halstrick on May 20th as part of
commit 2302a6d3. This result differs considerably from that of C
Git's blame --reverse feature. JGit tells the reader which commit
performed the delete, while C Git tells the reader the last commit
that still contained the line, leaving it an exercise to the reader
to discover the descendant that performed the removal.
This is still only a basic implementation. Quite notably it is
missing support for the smart block copy/move detection that the C
implementation of `git blame` is well known for. Despite being
incremental, the BlameGenerator can only be run once. After the
generator runs it cannot be reused. A better implementation would
support applications browsing through history efficiently.
In regards to CQ 5110, only a little of the original code survives.
CQ: 5110
Bug: 306161
Change-Id: I84b8ea4838bb7d25f4fcdd540547884704661b8f
Signed-off-by: Kevin Sawicki <kevin@github.com>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Some servlet containers require the servlet to read the EOF marker
from the input stream before a response can be output if the stream
is using "Transfer-Encoding: chunked"... which is typical for any
sort of large push to a repository over smart HTTP.
Ensure the EOF is always read by the PackParser when it is handling
the stream, and fail fast if there is more data present than expected
since this does indicate a protocol error.
Also ensure the EOF is read by UploadPack before it starts to output
a partial response using packing progress meters.
Change-Id: I131db9dea20b2324cb7c3272a814f21296bc64bd
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Some repositories created during tests are not added to the 'toClose'
list in LocalDiskRepositoryTestCase. Therefore when the tests end
we may have open FileHandles and on Windows this may cause the
tests to fail because we can't delete those files.
This is fixed by adding the possibility to explicitly add
repositories to the list of repos which are closed automatically.
Change-Id: I1261baeef4c7d9aaedd7c34b546393bfa005bbcc
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Fix CloneCommand not to fetch into remote tracking branches when bare
When cloning into a bare repository we should not create remote
tracking branches (e.g refs/remotes/origin/testX). Branches of the
remote repository should but fetched into into branches of the same
name (e.g refs/heads/testX). Also add the noCheckout option which
would prevent checkout after fetch.
Change-Id: I5d4cc0389f3f30c53aa0065f38119af2a1430909
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Adds a class which can be used to calculates a SHA1 of the diff
associated with a patch, similar to git patch-id.
In this version whitespace is not ignored.
Change-Id: I421d15ea905e23df543082786786841cbe3ef10d
Signed-off-by: Stefan Lay <stefan.lay@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Let RefDirectory use FileSnapShot to handle fast updates
Since this change may affect performance and memory consumption on every
access to a loose ref I explicitly made it a RFC to collect opinions.
Previously RefDirectory.scanRef() was not detecting an update of a
loose ref when the update didn't changed the modification time of
the backing file. RefDirectory cached loose refs and the way to detect
outdated cache entries was to compare lastmodification timestamp on the
file representing the ref. If two updates to the same ref happen faster
than the filesystem-timer granularity (for linux this is 2 seconds)
there is the possiblity that we don't detect the update.
Because of this bug EGit's PushOperationTest only works with 2 second
sleeps inside.
This change let RefDirectory use FileSnapshot to detect such situations.
FileSnapshot helps to remember when a file was last read from disk and
therefore enables to decide when to load a file from disk although
modification time has not changed.
Change-Id: I03b9a137af097ec69c4c5e2eaa512d2bdd7fe080
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
A checkout conflict during rebase setup should leave the repository
in SAFE state which means ensuring that the rebase temporary files
need to be removed.
Bug: 346813
Change-Id: If8b758fde73ed5a452a99a195a844825a03bae1a
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Change Ia2ab4f8dc95020f2914ff01c2bf3b1bc62a9d45d added merge
support for when OURS or THEIRS was simultaneously deleted
and modified. That changeset however did not add create an
entry in the conflicts table so clients would see a CONFLICTING
result but getConflicts() would return null.
This change creates a MergeResult for the conflicting file.
Bug: 345684
Change-Id: I52acb81c1729b49c9fb3e7a477c6448d8e55c317
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Optimize MergeAlgorithm if ours or theirs is empty
Previously when merging two contents with a non-empty base and one of
the contents was empty (size == 0) and the other was modified there
was a potentially expensive calculation until we finally always come
to the same result -> the complete non-deleted content should collide
with the empty content.
This proposal adds an optimization to detect empty input content and
to produce the appropriate result immediatly.
Change-Id: Ie6a837260c19d808f0e99173f570ff96dd22acd3
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
For the following patch on the linux 2.6.32 tag:
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -685,6 +685,7 @@ static void enqueue_sleeper(struct cfs_rq *cfs_rq, struct sc
static void check_spread(struct cfs_rq *cfs_rq, struct sched_entity *se)
{
+#if 0
#ifdef CONFIG_SCHED_DEBUG
s64 d = se->vruntime - cfs_rq->min_vruntime;
@@ -694,6 +695,7 @@ static void check_spread(struct cfs_rq *cfs_rq, struct
sched
if (d > 3*sysctl_sched_latency)
schedstat_inc(cfs_rq, nr_spread_over);
#endif
+#endif
}
static void
JGit produced an incorrect diff, attempting to add a new "}" instead
of the new "#endif" at the end of the hunk. This was caused by a prior
fix for bug 328895 where we wanted to "slide" a diff down in the file
when adding a new method/function and want to show the closing curly
brace as being added after the new method, rather than added onto the
end of the prior function or method just before the insertion point.
Bug: 345956
Change-Id: I32b9e24f1e2980258b1b39dd1807919ab1c5f9b2
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Fix diff when first text is the start of the other
The problem occurred when the first text ends in the middle
of the last line of the other text and the first text has no
end of line.
Bug: 344975
Change-Id: I1f0dd9f8062f2148a7c1341c9122202e082ad19d
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
The reflog message fix was done in
I4f1c3cd6b2cf543be213f061afb94223062dde51
Change-Id: I44817ccf4bf226ed3e4ce6fb2d923e88788221dd
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
This makes the message look the same as in C Git (the "."):
This reverts commit <sha1>.
Change-Id: I4c254c122277b127e7b039c0d1c7f7a0d691530d
Signed-off-by: Robin Stocker <robin@nibor.org>
Since d1718a the method getHumanishName was broken on windows since
the URIish is not normalized anymore. For a path like
"C:\gitRepositories\egit" the whole path was returned instead of
"egit".
Bug: 343519
Change-Id: I95056009072b99d32f288966302d0f8188b47836
Signed-off-by: Stefan Lay <stefan.lay@sap.com>
Before this change any files in the conflicting set would
also be listed in the the other IndexDiff Sets which is
confusing. With this change a conflicting file will not
be included in any of the other sets.
Change-Id: Ife9f2652685220bcfddc1f9820423acdcd5acfdc
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Merging into a non-master branch would result in the following message:
Merge branch 'a' into HEAD
Now the merge message is correct:
Merge branch 'a' into b
Change-Id: I488f97190e4c1711c23a7a3cbd64f8b13a87bbac
Signed-off-by: Robin Stocker <robin@nibor.org>
Implemented merge for parallel delete/modification
Duplicates cgit behaviour for merging the case where
OURS is deleted and THEIRS is modified as well as
OURS is modified and THEIRS id deleted.
Change-Id: Ia2ab4f8dc95020f2914ff01c2bf3b1bc62a9d45d
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
RefDirectory did not correctly follow the contract of RefList. The
contract says if you use add() method of RefList builder, you MUST
sort() it afterwards, and later every other method assumes that list
is properly sorted (especially the binary search in the find() and
get() methods). Instead RefDirectory class tried to scan the refs
recursively while sorting every folder in the process before
processing and did not call sort().
For example, when scanning the contents of refs/tags project1 string
is smaller than project1-*, so it will recursively go into the folder
and add these tags first and only then will add project-* ones. This
will result in a broken list (any project1-* string is less than
project1/* one, but they all appear after them in the list), that's
why binary search will fail making loose RefList and the whole local
RefMap completely unusable.
Change-Id: Ibad90017e3b2435b1396b69a22520db4b1b022bb
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This ensures that all test data is separated from project sources and
cleaned up after the test. Previously the cloned bare test repository
was created in org.eclipse.jgit.test/ and not deleted after the test
run.
Change-Id: I55110442e365fc8fe610f1c372f72a71ee6e1412
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add "Conflicts" section to merge message on conflict
The same as with cherry-pick, the commit message of a merge should
include a "Conflicts" section when the merge resulted in conflicts.
Change-Id: I6261dc898262322924af5ca1bef841a654b0df55
Signed-off-by: Robin Stocker <robin@nibor.org>
Add handling of CHERRY_PICK_HEAD file in .git (similar to MERGE_HEAD),
which is written in case of a conflicting cherry-pick merge.
It is used so that Repository.getRepositoryState can return the new
states CHERRY_PICKING and CHERRY_PICKING_RESOLVED. These states, as well
as CHERRY_PICK_HEAD can be used in EGit to properly show the merge tool.
Also, in case of a conflict, MERGE_MSG is written with the original
commit message and a "Conflicts" section appended. This way, the
cherry-picked message is not lost and can later be re-used in the commit
dialog.
Bug: 339092
Change-Id: I947967fdc2f1d55016c95106b104c2afcc9797a1
Signed-off-by: Robin Stocker <robin@nibor.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
The timeout is also used in the FetchCommand called by the
CloneCommand.
The possibility to provide a list of branches to fetch initially is a
feature offered by EGit. To implement it here is a prerequisite for
EGit to be able to use the CloneCommand.
Change-Id: I21453de22e9ca61919a7c3386fcc526024742f5f
Signed-off-by: Stefan Lay <stefan.lay@sap.com>
When no branch was specified in the clone command, HEAD pointed to a
commit after clone. Now the clone command tries to find a branch which
points to the same commit and checks out this branch.
Bug: 339354
Change-Id: Ie3844465329f213dee4a8868dbf434ac3ce23a08
Signed-off-by: Stefan Lay <stefan.lay@sap.com>
When a new Git instance for an exisiting git repository should be
created there are two use-cases: either the application has already a
Repository instance in hand or the application knows where the
repository resides in the filesystem. Two methods are added to
explicitly support these use-cases: wrap(Repository db) and open(File
gitDir)
Change-Id: I2970e4aa8d4602cb1298f01e5b76bf0f96c492e5
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Instead of tracking the length and modification time by hand, rely
on FileSnapshot to tell RefDirectory when the $GIT_DIR/packed-refs
file has been changed or should be re-read from disk.
Change-Id: I067d268dfdca1d39c72dfa536b34e6a239117cc3
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
We used to normalize URI's since it seems simple. This however causes
inconsistencies to the user and to out tests. Just pass backslashes
through and make sure our parser can handle them.
Bug: 341062
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Change-Id: I2c8e917a086faabcd8749160c2acc9dd05a42838
Detaching HEAD didn't work in some corner checkout cases. If, for example,
HEAD is symbolic ref to refs/heads/master, refs/heads/master is ref to commit
c0ffee... then:
checkout c0ffee...
would leave the HEAD unchanged.
The same symptom occurs when checking out a remote tracking branch or a tag
that references the same commit as refs/heads/master.
In the above case, the RefUpdate class didn't have enough information to decide
if the update needed to detach symbolic ref because it dealt only with new/old
objectIDs. Therefore, this fix introduced the RefUpdate.detachingSymbolicRef
flag.
Bug: 315166
Change-Id: I085c98b77ea8f9104a213978ea0d4ac6fd58f49b
Signed-off-by: Sasa Zivkov <sasa.zivkov@sap.com>
In case an underlying cherry-pick fails due to uncommitted changes, a
RebaseCommand shall fail and roll-back changes.
Change-Id: Ic22eb047fb03ac2c8391f777036b7dbf22a1b061
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
Allow users of the GIT api to get to know the state of their
workingtree and index by adding a status command. The implementation
is mainly a wrapper around IndexDiff class. Better support for multiple
stages in the index (conflict situations) is still missing. An
appropriate change to IndexDiff and StatusCommand will come in a
subsequent commit.
Bug: 337296
Change-Id: Idb390375a68611853c1c903299ec678c89b081dc
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
In order to distinguish cherry-pick failures caused by conflicts vs.
'abnormal failures' (e.g. due to unstaged changes or a dirty
worktree), a CherryPickResult class is introduced and returned by
CherryPickCommand.call() instead of a RevCommit. This new class is
similar to MergeResult and RebaseResult. The CherryPickResult contains
all necessary information, e.g. paths causing the cherry-pick (a merge
called within, respectively) to fail. This allows callers to better
react on failures.
Change-Id: I5db57b9259e82ed118e4bf4ec94463efe68b8c1f
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Add a test case for PullCommand for the successful merge case and test
that the short ref name is used.
Change-Id: I16cbbc88595f73e5512f984e67f93f87ee0fe242
Signed-off-by: Robin Stocker <robin@nibor.org>
Fix: possible IndexOutOfBoundsException in ReflogReader
java.lang.IndexOutOfBoundsException
at java.nio.ByteBuffer.wrap(ByteBuffer.java:352)
at org.eclipse.jgit.util.RawParseUtils.decodeNoFallback(RawParseUtils.java:913)
at org.eclipse.jgit.util.RawParseUtils.decode(RawParseUtils.java:880)
at org.eclipse.jgit.util.RawParseUtils.decode(RawParseUtils.java:839)
at org.eclipse.jgit.storage.file.ReflogReader$Entry.<init>(ReflogReader.java:102)
at org.eclipse.jgit.storage.file.ReflogReader.getReverseEntries(ReflogReader.java:183)
at org.eclipse.jgit.storage.file.ReflogReader.getReverseEntries(ReflogReader.java:162)
Change-Id: I22a18bc7193962e5018c40a75337f9976b585c40
Add paths causing abnormal merge failures (e.g. due to unstaged
changes) to the MergeResult returned by MergeCommand. This helps
callers to better handle (e.g. present) merge results.
Change-Id: Idb8cf04c5cecfb6a12cb880e16febfc3b9358564
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
Matthias Sohn
Shawn O. Pearce
Christian Halstrick
Stefan Lay
Abhishek Bhatnagar
Kevin Sawicki
Ketan Padegaonkar
Bernard Leach
Chris Aniszczyk
Piotr Janik
Robin Rosenberg
Robin Stocker
Leonard Broman
Sasa Zivkov
Philipp Thun
Marc Strapetz