If the command contains spaces, it needs to be evaluated by the remote
shell. Quoting the command breaks this, making it impossible to run a
remote command that needs additional options.
Bug: 336301
Change-Id: Ib5d88f0b2151df2d1d2b4e08d51ee979f6da67b5
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This gets non-commits out of the wantSatisfied() main loop by making
use of the cached SATISIFIED flag and its existing bypass. Anything
that isn't a commit cannot be discovered by the have negotiation, so
its always assumed to be SATISIFIED by the server.
Bug: 301639
Change-Id: I1ef354fbf2e2ed44c9020a4069d7179f2159f19f
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When the walker resets, its going to scrub the COMMON and SATISIFIED
flags off a commit if the commit is contained within another commit
the client wants. This is common if the client asks for both a
'maint' and 'master' branch, and 'maint' is also fully merged into
'master'.
COMMON shouldn't be scrubbed during reset because its used to control
membership of the commonBase collection, which is a List. commonBase
should technically be a set, but membership is cheaper with a RevFlag.
COMMON appears on a commit reachable from a WANT when there is also a
PEER_HAS flag present, as this is a merge base. Scrubbing this off
when another branch is tested isn't useful.
SATISIFIED is a cache to tell us if wantSatisified() has already
completed for this particular WANT. If it has, there isn't a need to
recompute on that branch. Scrubbing it off 'maint' when we test
'master' just means we would later need to re-test 'maint', wasting
CPU time on the server.
Bug: 301639
Change-Id: I3bb67d68212e4f579e8c5dfb138f007b406d775f
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
okToGiveUpImp() has been missing a ! for a long time. This loop over
wantAll() is looking for an object where wantSatisfied() returns
false, because there is no common merge base present. Unfortunately
it was missing a !, causing the loop to break and return false after
at least one want was satisified.
Bug: 301639
Change-Id: Ifdbe0b22c9cd0a9181546d090b4990d792d70c82
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
JGit did not use sh -c to run the receive-pack or upload-pack programs
locally, which caused errors if these strings contained spaces and
needed the local shell to evaluate them.
Win32 support using cmd.exe /c is completely untested, but seems like
it should work based on the limited information I could get through
Google search results.
Bug: 336301
Change-Id: I22e5e3492fdebbae092d1ce6b47ad411e57cc1ba
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
If a client wants to perform a clone of the repository, it sends
wants, but no haves. There is no point in parsing the want list
within UploadPack, as there won't be a common merge base search.
Instead just defer the parsing to PackWriter, which will do its
own parsing and object enumeration.
If the client does have a "have" set, defer parsing of the want list
until the have list is also parsed, and parse them together in a
single batch queue. This lets the underlying storage system use a
larger lookup batch if there is significant latency involved when
resolving an ObjectId to a RevObject.
Change-Id: I9c30d34f8e344da05c8a2c041a6dc181d8e8bc19
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The most expensive part of packing a repository for transport to
another system is enumerating all of the objects in the repository.
Once this gets to the size of the linux-2.6 repository (1.8 million
objects), enumeration can take several CPU minutes and costs a lot
of temporary working set memory.
Teach PackWriter to efficiently reuse an existing "cached pack"
by answering a clone request with a thin pack followed by a larger
cached pack appended to the end. This requires the repository
owner to first construct the cached pack by hand, and record the
tip commits inside of $GIT_DIR/objects/info/cached-packs:
cd $GIT_DIR
root=$(git rev-parse master)
tmp=objects/.tmp-$$
names=$(echo $root | git pack-objects --keep-true-parents --revs $tmp)
for n in $names; do
chmod a-w $tmp-$n.pack $tmp-$n.idx
touch objects/pack/pack-$n.keep
mv $tmp-$n.pack objects/pack/pack-$n.pack
mv $tmp-$n.idx objects/pack/pack-$n.idx
done
(echo "+ $root";
for n in $names; do echo "P $n"; done;
echo) >>objects/info/cached-packs
git repack -a -d
When a clone request needs to include $root, the corresponding
cached pack will be copied as-is, rather than enumerating all of
the objects that are reachable from $root.
For a linux-2.6 kernel repository that should be about 376 MiB,
the above process creates two packs of 368 MiB and 38 MiB[1].
This is a local disk usage increase of ~26 MiB, due to reduced
delta compression between the large cached pack and the smaller
recent activity pack. The overhead is similar to 1 full copy of
the compressed project sources.
With this cached pack in hand, JGit daemon completes a clone request
in 1m17s less time, but a slightly larger data transfer (+2.39 MiB):
Before:
remote: Counting objects: 1861830, done
remote: Finding sources: 100% (1861830/1861830)
remote: Getting sizes: 100% (88243/88243)
remote: Compressing objects: 100% (88184/88184)
Receiving objects: 100% (1861830/1861830), 376.01 MiB | 19.01 MiB/s, done.
remote: Total 1861830 (delta 4706), reused 1851053 (delta 1553844)
Resolving deltas: 100% (1564621/1564621), done.
real 3m19.005s
After:
remote: Counting objects: 1601, done
remote: Counting objects: 1828460, done
remote: Finding sources: 100% (50475/50475)
remote: Getting sizes: 100% (18843/18843)
remote: Compressing objects: 100% (7585/7585)
remote: Total 1861830 (delta 2407), reused 1856197 (delta 37510)
Receiving objects: 100% (1861830/1861830), 378.40 MiB | 31.31 MiB/s, done.
Resolving deltas: 100% (1559477/1559477), done.
real 2m2.938s
Repository owners can periodically refresh their cached packs by
repacking their repository, folding all newer objects into a larger
cached pack. Since repacking is already considered to be a normal
Git maintenance activity, this isn't a very big burden.
[1] In this test $root was set back about two weeks.
Change-Id: Ib87131d5c4b5e8c5cacb0f4fe16ff4ece554734b
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
CGit pack-objects displays a totals line after the pack data
was fully written. This can be useful to understand some of
the decisions made by the packer, and has been a great tool
for helping to debug some of that code.
Track some of the basic values, and send it to the client when
packing is done:
remote: Counting objects: 1826776, done
remote: Finding sources: 100% (55121/55121)
remote: Getting sizes: 100% (25654/25654)
remote: Compressing objects: 100% (11434/11434)
remote: Total 1861830 (delta 3926), reused 1854705 (delta 38306)
Receiving objects: 100% (1861830/1861830), 386.03 MiB | 30.32 MiB/s, done.
Change-Id: If3b039017a984ed5d5ae80940ce32bda93652df5
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
It isn't strictly necessary to validate every reference's target
object is reachable in the repository before advertising it to a
client. This is an expensive operation when there are thousands of
references, and its very unlikely that a reference uses a missing
object, because garbage collection proceeds from the references and
walks down through the graph. So trying to hide a dangling reference
from clients is relatively pointless.
Even if we are trying to avoid giving a client a corrupt repository,
this simple check isn't sufficient. It is possible for a reference to
point to a valid commit, but that commit to have a missing blob in its
root tree. This can be caused by staging a file into the index,
waiting several weeks, then committing that file while also racing
against a prune. The prune may delete the blob, since its
modification time is more than 2 weeks ago, but retain the commit,
since its modification time is right now.
Such graph corruption is already caught during PackWriter as it
enumerates the graph from the client's want list and digs back
to the roots or common base. Leave the reference validation also
for that same phase, where we know we have to parse the object to
support the enumeration.
Change-Id: Iee70ead0d3ed2d2fcc980417d09d7a69b05f5c2f
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
PushCommand now does not set a null credentials provider on
Transport because in this case the default provider is replaced with
null and the default mechanism for providing credentials is not
working.
Bug: 336023
Change-Id: I7a7a9221afcfebe2e1595a5e59641e6c1ae4a207
Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>
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>
Some of this code predates making ObjectId.equals() final
and fixing RevObject.equals() to match ObjectId.equals().
It was therefore more complex than it needs to be, because
it tried to work around RevObject's broken equals() rules
by converting to ObjectId in a different collection.
Also combine setUpWalker() and findObjectsToPack() methods,
these can be one method and the code is actually cleaner.
Change-Id: I0f4cf9997cd66d8b6e7f80873979ef1439e507fe
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
The first 'Compressing objects' progress message is wrong, its
actually PackWriter looking up the sizes of each object in the
ObjectDatabase, so objects can be sorted correctly in the later
type-size sort that tries to take advantage of "Linus' Law" to
improve delta compression.
Rename the progress to say 'Getting sizes', which is an accurate
description of what it is doing.
Change-Id: Ida0a052ad2f6e994996189ca12959caab9e556a3
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
When compressing objects, don't include the edges in the progress
meter. These cost almost no CPU time as they are simply pushed into
and popped out of the delta search window.
Change-Id: I7ea19f0263e463c65da34a7e92718c6db1d4a131
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-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>
CGit push clients 1.6.6 and later support progress messages on the
side-band-64k channel during push, as this was introduced to handle
server side hook errors reported over smart HTTP.
Since JGit's delta resolution isn't always as fast as CGit's is,
a user may think the server has crashed and failed to report
status if the user pushed a lot of content and sees no feedback.
Exposing the progress monitor during the resolving deltas phase
will let the user know the server is still making forward progress.
This also helps BasePackPushConnection, which has a bounded timeout
on how long it will wait before assuming the remote server is dead.
Progress messages pushed down the side-band channel will reset the
read timer, helping the connection to stay alive and avoid timing
out before the remote side's work is complete.
Change-Id: I429c825e5a724d2f21c66f95526d9c49edcc6ca9
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Non-commits are added to a pending queue, but duplicates are
removed by checking a flag. During a reset that flag must be
stripped off the old roots, otherwise the caller cannot reuse
the old roots after the reset.
RevWalk already does this correctly for commits, but ObjectWalk
failed to handle the non-commit case itself.
Change-Id: I99e1832bf204eac5a424fdb04f327792e8cded4a
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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>
This reverts commit f5fe2dca3c.
I regret adding this feature to the public API. Caches aren't always
the best idea, as they require work to maintain. Here the cache is
redundant information that must be computed, and when it grows stale
must be removed. The redundant information takes up more disk space,
about the same size as the pack-*.idx files are. For the linux-2.6
repository, that's more than 40 MB for a 400 MB repository. So the
cache is a 10% increase in disk usage.
The entire point of this cache is to improve PackWriter performance,
and only PackWriter performance, and only when sending an initial
clone to a new client. There may be better ways to optimize this, and
until we have a solid solution, we shouldn't be using a separate cache
in JGit.
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>
IOException constructor taking Exception as parameter is
new for JDK 6.
Change-Id: Iec349fc7be9e9fbaeb53841894883c47a98a7b29
Signed-off-by: Mathias Kinzler <mathias.kinzler@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>
DirCacheCheckout.checkoutEntry() prepares the new file content using a
temporary file and then renames it to the file to be written during
checkout. For files to be updated checkout() created each file before
calling checkoutEntry(). Hence renaming the temporary file always
failed which was corrected in exception handling by retrying to rename
the file after deleting the just newly created file.
Change-Id: I219f864f2ed8d68051d7b5955d0659964fa27274
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Counting the objects needed for packing is the most expensive part of
an UploadPack request that has no uninteresting objects (otherwise
known as an initial clone). During this phase the PackWriter is
enumerating the entire set of objects in this repository, so they can
be sent to the client for their new clone.
Allow the ObjectReader (and therefore the underlying storage system)
to keep a cached list of all reachable objects from a small number of
points in the project's history. If one of those points is reached
during enumeration of the commit graph, most objects are obtained from
the cached list instead of direct traversal.
PackWriter uses the list by discarding the current object lists and
restarting a traversal from all refs but marking the object list name
as uninteresting. This allows PackWriter to enumerate all objects
that are more recent than the list creation, or that were on side
branches that the list does not include.
However, ObjectWalk tags all of the trees and commits within the list
commit as UNINTERESTING, which would normally cause PackWriter to
construct a thin pack that excludes these objects. To avoid that,
addObject() was refactored to allow this list-based enumeration to
always include an object, even if it has been tagged UNINTERESTING by
the ObjectWalk. This implies the list-based enumeration may only be
used for initial clones, where all objects are being sent.
The UNINTERESTING labeling occurs because StartGenerator always
enables the BoundaryGenerator if the walker is an ObjectWalk and a
commit was marked UNINTERESTING, even if RevSort.BOUNDARY was not
enabled. This is the default reasonable behavior for an ObjectWalk,
but isn't desired here in PackWriter with the list-based enumeration.
Rather than trying to change all of this behavior, PackWriter works
around it.
Because the list name commit's immediate files and trees were all
enumerated before the list enumeration itself starts (and are also
within the list itself) PackWriter runs the risk of adding the same
objects to its ObjectIdSubclassMap twice. Since this breaks the
internal map data structure (and also may cause the object to transmit
twice), PackWriter needs to use a new "added" RevFlag to track whether
or not an object has been put into the outgoing list yet.
Change-Id: Ie99ed4d969a6bb20cc2528ac6b8fb91043cee071
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
It can be very handy for the implementation to resort the
object list based on data locality, improving prefetch in
the operating system's buffer cache.
Export the list to the implementation was a proper List,
and document that its mutable and OK to be modified. The
only caller in PackWriter is already OK with these rules.
Change-Id: I3f51cf4388898917b2be36670587a5aee902ff10
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When performing an initial clone of a repository there are no
uninteresting commits, and the resulting pack will be completely
self-contained. Therefore PackWriter does not need to honor C
Git standard TOPO ordering as described in JGit commit ba984ba2e0
("Fix checkReferencedIsReachable to use correct base list").
Switching to COMMIT_TIME_DESC when there are no uninteresting commits
allows the "Counting objects" phase to emit progress earlier, as the
RevWalk will not buffer the commit list. When TOPO is set the RevWalk
enumerates all commits first, before outputing any for PackWriter to
mark progress updates from.
Change-Id: If2b6a9903b536c7fb3c45f85d0a67ff6c6e66f22
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
These two methods are specific to the FileRepository implementation
and should not be exposed as part of the base Repository API. Now
that PackParser is generic and does not require these two methods
to import a pack stream into a repostiory, it is safe to remove
these and get them out of the public view.
Change-Id: I8990004d08074657f467849dabfdaa7e6674e69a
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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>
This information is generally useful - have followed the
accessor pattern of 'children' and 'parents'
Change-Id: I79b3ddd6f390152aa49e6b7a4c72a4aca0d6bc72
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
The change Ie0350e032a97e0d09626d6143c5c692873a5f6a2 was not
done properly. The renamed file was not write protected, and
this broke a test.
Bug: 335388
Change-Id: I41b2235b7677bc5fddc70dda2a56cdd2cb53ce5d
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
This is needed for implementing Fetch in EGit using the API.
Change-Id: Ibdcc95906ef0f93e3798ae20d4de353fb394f2e2
Signed-off-by: Mathias Kinzler <mathias.kinzler@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>
We cannot always rename read-only files on network shares,
so rename the temp file for a new loose object first, and
then set it as read-only.
Bug: 335388
Change-Id: Ie0350e032a97e0d09626d6143c5c692873a5f6a2
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
When debugging and enhancing DirCacheCheckout.processEntry() I found
that some of if-statements where hard to read/understand. This
change just splits some long if statements and adds more comments
explaining in which state we are. This change is only a preparation
for followup commits which introduce checks for untracked+ignored
files.
Change-Id: I670ff08310b72c858709b9e395f0aebb4b290a56
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
If HEAD exists but points to an not-existing branch the merge
command should silently create the missing branch and check
it out. This happens if you pull into freshly initalized repo.
HEAD points to refs/heads/master but refs/heads/master doesn't
exist. If you know merge a commit X into HEAD then the branch
master should be created (pointing to X) the working tree should
be updated to reflect X. That is achieved by checkout with one
tree only (HEAD is missing).
A test for this functionality will come the the next proposal
in PullCommandTest.
Change-Id: Id4a0d56d944e0acebd4b3157428bb50bd3fdd872
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Add possibility to disable ssl verification, just as i can do with git
using: git config --global http.sslVerify false
To enable the feature, configure
Window->Preferences->Team->Git->Configuration
and add a new key/value: http.sslVerify=false
When handling repos over https, JGit will then check that flag to see
if security is loose and the ssl verification should be ignored.
Having it implemented as a key/value makes it not too obvious in the
GUI - so the user must know what he/she is doing when adding it. Being
aware of the risks etc.
Bug: 332487
Change-Id: I2a1b8098b5890bf512b8dbe07da41036c0fc9b72
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Reading a repository for millions of missing objects might be very
expensive to perform, especially if the repository is on a network
filesystem or some other costly RPC backend. A repository owner
might choose to accept some risk in return for better performance,
so allow disabling collision checking when receiving a pack.
Currently there is no way for an end-user to disable this feature.
This is intentional, because it is generally *NOT* a good idea to
skip this check. Instead this feature is supplied for storage
implementations to bypass the default checking logic, should they
have their own custom routines that is just as effective but can
be handled more efficiently.
Change-Id: I90c801bb40e86412209de0c43e294a28f6a767a5
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
If a pack uses OFS_DELTA only (e.g. its an initial push to a
repository) and PackParser's implementation is broken such that the
delta chain that hangs below a particular object offset is empty, the
entryCount won't match the expected objectCount. Fail fast rather
than claiming the stream was parsed correctly.
The current implementation is not broken as described above. I broke
the code when I implemented my own new subclass of PackParser (which
incorrectly mucked with the object offset information), leading me to
discover this consistency check was missing.
Change-Id: I07540f0ae1144ef6f3bda48774dbdefb8876e1d3
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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>
This is needed for commands that use Transport internally.
Change-Id: I9417c85255b160723968c647063b9c7e05995ea4
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
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>
Instead of offering only a high-level isModified() method a new
method compareMetadata() is introduced which compares a working tree entry
and a index entry by looking at metadata only. Some use-cases
(e.g. computing the content-id in idBuffer()) may use this new method
instead of isModified().
Change-Id: I4de7501d159889fbac5ae6951f4fef8340461b47
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Change-Id: I4f05bdb0c58b039bd379341a6093f06a2cdfec6e
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.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.
Java's user.home is not the same as $HOME so EGit did see the
same global configuration as C Git does.
Bug: 333269
Change-Id: Id54fc5292bf8c5a67177f9097ee692717a7df336
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
There is a space missing between <from> and "to" in the reflog
message produced by the CheckoutCommand, which is of the form
moving from <from> to <to>
Change-Id: I3dc57ab0a6589292db77a17d9029ee9499dfc725
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
This is needed by a EGit change
http://egit.eclipse.org/r/#change,2232
Change-Id: I3d62f904b769fc2f1b7b8f0f24f7dd757fc9c379
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Instead just return success. In the case that no commit has been
cherry-picked or reverted, just return the old HEAD.
Bug: 333814
Change-Id: I67db2b77b52c43932436d22a8daa5a6556423484
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.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>
Instead of using the current thread's stack to recurse through the
delta chain, use a linked list that is stored in the heap. This
permits the any thread to load a deep delta chain without running out
of thread stack space.
Despite needing to allocate a stack entry object for each delta
visited along the chain being loaded, the object allocation count is
kept the same as in the prior version by removing the transient
ObjectLoaders from the intermediate objects accessed in the chain.
Instead the byte[] for the raw data is passed, and null is used as a
magic value to signal isLarge() and enter the large object code path.
Like the old version, this implementation minimizes the amount of
memory that must be live at once. The current delta instruction
sequence, the base it applies onto, and the result are the only live
data arrays. As each level is processed, the prior base is discarded
and replaced with the new result.
Each Delta frame on the stack is slightly larger than the standard
ObjectLoader.SmallObject type that was used before, however the Delta
instances should be smaller than the old method stack frames, so total
memory usage should actually be lower with this new implementation.
Change-Id: I6faca2a440020309658ca23fbec4c95aa637051c
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>
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>
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>
These settings are stored in <prefix>/etc/gitconfig. The C Git
binary is installed in <prefix>/bin, so we look for the C Git
executable to find this location, first by looking at the PATH
environment variable and then by attemting to launch bash as
a login shell to find out.
Bug: 333216
Change-Id: I1bbee9fb123a81714a34a9cc242b92beacfbb4a8
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
Replace 'method' with 'heap'-based recursion for resolving deltas.
Git packfile delta-chain depth can exceed 50 levels in certain files
(the packfile of the JGit project itself has >800 objects with
chain-length >50). Using method-based recursion on such packfiles will
quickly throw a StackOverflowError on VMs with constrained stack.
Benefits:
* packfile delta-resolution no longer limited by the maximum number
of stack frames permitted on the current thread.
* slight performance improvement
(3% speed increase on the packfile of the JGit project)
Change-Id: I1d9b3a8ba3c6d874d83cb93ebf171c6ab193e6cc
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
We cannot use SystemReader to get the time, unless we do that consistently,
which is harder to do and be sure we are really testing what we want.
Then we need to update our lastRead variable whenever we conclude that
our file is not racily clean according to lastRead. It may well be clean,
but we do not know that until we check the system clock again.
Finally add a test for this class.
Change-Id: I1894b032b9bd359d1b5325e5472d48e372599e4c
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
If the 'TREE' extension contains an invalid subtree that has
been removed, DirCacheIterator still tried to access it due to
an invalid childCnt field within the parent DirCacheTree object.
This is easy for a user to do, they just need to move all files
out of a subdirectory.
For example, the input for the JUnit test case for this bug was
built using the following C Git sequence:
mkdir -p a/b
touch a/b/c q
git add a/b/c q
git write-tree
git mv a/b/c a/a
After the last step, the subdirectory a/b is empty, as its only
file was moved into the parent directory. Because of the earlier
`git write-tree` operation, there is a 'TREE' extension present, but
the a and a/b subdirectories have been marked invalid by the rename.
When JGit tried to iterate over the a tree, it tried to correct
childCnt to be zero as a/b no longer exists, but it failed to
update childCnt.
Change-Id: I7a0f78fc48a36b1a83252d354618f6807fca0426
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
As discussed in
http://egit.eclipse.org/r/#change,2127
we should use paths relative the working directory instead of Files to
notify the caller about conflicts and nondeleted files.
Change-Id: I034c7bd846f0df78d97bc246f38d411f29713dde
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
The CheckoutCommand does not handle names other than local branch
names properly; it must detach HEAD if such a name is encountered (for
example a commit ID or a remote tracking branch).
Change-Id: I5d55177f4029bcc34fc2649fd564b125a2929cc4
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
This is needed by callers to determine checkout conflicts and
possible files that were not deleted during the checkout so that they
can present the end user with a better Exception description and retry
to delete the undeleted files later, respectively.
Change-Id: I037930da7b1a4dfb24cfa3205afb51dc29e4a5b8
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
This wrongly returns the same as getConflicts()
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Change-Id: Id37c625458fc5a9b3987f05b684620e24fdfe852
Relying only on the last modified time for a file can be tricky.
The "racy git" problem may cause some modifications to be missed.
Use the new FileSnapshot code to track when a configuration file
has been modified, and needs to be reloaded in memory.
Change-Id: Ib6312fdd3b2403eee5af3f8ae711294b0e5f9035
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Pulling the last modified checking logic out of ObjectDirectory
makes it possible to reuse this code for other files, such as
the $GIT_DIR/config or $GIT_DIR/packed-refs files.
Change-Id: If2f27a89fc3b7adde7e65ff40bbca5d55b98b772
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Each time getConfig() is called on FileRepository, it checks the
last modified time of both ~/.gitconfig and $GIT_DIR?config. If
$GIT_DIR/config appears to have been modified, it is read back in
from disk and the current config is wiped out.
When mutating a configuration file, this may cause in-memory edits
to disappear. To avoid that callers need to avoid calling getConfig
until after the configuration has been saved to disk.
Unfortunately the API is still horribly broken. Configuration should
be modified only while a lock is held on the configuration file, very
similar to the way a ref is updated via its locking protocol. But our
existing API is really broken for that so we'll have to defer cleaning
up the edit path for a future change.
Change-Id: I5888dd97bac20ddf60456c81ffc1eb8df04ef410
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The tortoiseplink command does not understand -batch, even though
it smells like the putty plink command that does use it. Don't add
-batch if GIT_SSH is tortoiseplink.
Change-Id: I638532a02faa2caf8c39d482094e7ff4f4ec7e78
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When GIT_SSH is set to use plink, the correct option name is "-batch"
and not "--batch". This was a typo introduced when we added support
for plink via GIT_SSH.
Change-Id: I391660e38f5d208bba11e3f2a8f25922de2af878
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When checking whether a file in the working tree has been modified -
WorkingTreeIterator.isModified() - we should not trust the filemode
in case of symbolic links, but check the timestamp and also the
content, if requested. Without this fix symlinks will always be shown
in EGit as modified files on Windows systems.
Change-Id: I367c807df5a7e85e828ddacff7fee7901441f187
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
Sasa pointed out we only ever use the length here, so instead of
holding onto the AbbreviatedObjectId, lets just hold onto the length
as a primitive int.
Change-Id: I2444f59f9fe5ddcaea4a3537d3f1064736ae3215
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
CC: Sasa Zivkov <zivkov@gmail.com>
JGit's internal implementation of the HTTP digest authentication
method wasn't conforming to RFC 2617 (HTTP Authentication: Basic
and Digest Access Authentication), resulting in authentication
failures when connecting to a digest protected site.
The code now more accurately matches section 3.2.2 (The Authorization
Request Header) from the standards document.
Change-Id: If41b5c2cbdd59ddd6b2dea143f325e42cd58c395
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The java.io.File methods for creating directories report failure by
returning false. To ease proper checking of return values provide
utility methods wrapping mkdir() and mkdirs() which throw IOException
on failure.
Also fix the tests to store test data under a trash folder and cleanup
after test.
Change-Id: I09c7f9909caf7e25feabda9d31e21ce154e7fcd5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
If DiffFormatter is asked to compare the index to the working tree,
it can go faster by using the cached stat information to compare
the two entries rather than relying on SHA-1 computation alone.
Change-Id: Icb21c15b8279ee8cee382e5e179e0cf8903aee4d
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
This is needed to ensure interoperability with the command line: if
the git-rebase-todo file was created manually (by git rebase -i in the
command line), and any commands other than pick are used (reword,
edit, fixup, squash) JGit must abort as it does not understand these
commands yet.
The same is true if an unknown command is found (e.g. due to a typo);
this is the same behavior as shown by the command line.
Change-Id: I2322014f69460361f7fc09da223e8a5c31f100dd
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Always use streaming (for SHA-checksum & collision detection)
when indexing whole blobs, regardless of their size.
Positives:
* benefits of bugfix #312868 will apply to all runtimes, without
additional conf for mem-constrained JVMs (5MB huge for some)
* no byte array allocation
(re-uses readBuffer instead of allocating new full-size array)
* mildly better overall performance
(given the usual blob-does-not-need-collision-checking case)
* removes unnecessary code
Negative:
* doubles the disk IO for a blob comparision
(comparitively rare occurance)
I perf-tested a range of threshold sizes against a random selection
of packfiles I found on my harddrive, the results are here:
https://spreadsheets.google.com/ccc?key=tLCQElyyd2RKN9QevfvgwGQ&hl=en_GB#gid=1
My interpretation of the results is that the streaming size threshold
isn't beneficial (actually seems to be very slightly detrimental) -so
we should just get rid of it. This tallies with some of the comments
Shawn & I had for the default value of streamFileThreshold in the
review for I862afd4c:
http://egit.eclipse.org/r/#patch,sidebyside,2040,2,org.eclipse.jgit/src/org/eclipse/jgit/transport/IndexPack.java
The perf-test code is here: https://gist.github.com/735402
It's a bit scruffy but basically does 10 runs (in randomised order)
for each threshold size on various packfiles, waiting a second
between each pack-indexing to allow GC to catch up. I know it's not
perfect - proper perf testing is hard to do :-)
For convenience provide an option to skip deletion of non-existing
files. Also add some tests for deletion methods in FileUtils.
Change-Id: I33e355cfcdc19367d50208150ee49a4a06394890
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Sasa and I were reviewing this code today and Sasa pointed out we
can simplify the conflict logic, as the two cases (subtree and file)
are logically identical.
Change-Id: Ie0d40b2dd15605785eff453a846b1d20a2d021fc
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Reviewed-by: Sasa Zivkov <zivkov@gmail.com>
Rebase would update the original HEAD to the wrong commit when
"skipping" the last commit after a merged commit.
Includes a test for the specific situation.
Change-Id: I087314b1834a3f11a4561f04ca5c21411d54d993
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
If a treewalk walks also over index and the workingtree then the
IndexDiffFilter filter can be used which works much faster then
the semantically equivalent ANY_DIFF filter. This is because this
filter can better avoid computing SHA-1 ids over the content of
working-tree files which is very costly.
This fix will significantly improve the performance of e.g.
EGit's commit dialog.
Change-Id: I2a51816f4ed9df2900c6307a54cd09f50004266f
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Philipp Thun <philipp.thun@sap.com>
For --continue, the Rebase command asserts that there are no unmerged
paths in the current repository. Then it checks if a commit is needed.
If yes, the commit message and author are taken from the author_script
and message files, respectively, and a commit is performed before the
next step is applied.
For --skip, the workspace is reset to the current HEAD before applying
the next step.
Includes some tests and a refactoring that extracts Strings in the
code into constants.
Change-Id: I72d9968535727046e737ec20e23239fe79976179
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Instead of setting a boolean when a difference record is found, return
false from diff() only if all of the collections are empty. When all
of them are empty, no difference was found.
Change-Id: I555fef37adb764ce253481751071c53ad12cf416
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The isModified() is more efficient because it can skip over files that
are stat clean, without needing to scan them.
This is useful to efficently work on paths that were already staged
and thus differ between HEAD and the index, but not between the index
and the working tree.
Change-Id: I4418202e612f0571974e0898050d987c6c280966
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When comparing the ObjectIds for two tree entries its faster
to use the raw buffer compares over allocating ObjectIds and
then performing equals on their contents.
However, this also needs to consider the raw modes. It is possible
for a path to change modes but not ObjectId (e.g. making a file
executable), and in this case its still a staged change to report back
to the caller.
Change-Id: I1a267254c04b3273a97f63c71d1e6718cd9d2fa8
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
If the caller really needs the list of files that are flagged as
assume-unchanged (aka assume-valid in the DirCache), we should give
them the complete list and not just those that we wrongly identified
as being modified during diff().
This change is necessary because diff() is slightly broken and is
discovering differences on files that it shouldn't have considered.
Change-Id: Ibe464c1a0e51c19dc287a4bc5348b7b07f4d840b
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
The TreeWalk is configured to be recursive, which means subtrees are
never presented to the application. Therefore the working tree file
mode can never be a subtree/subdirectory at this point in the code.
Change-Id: Ie842ddc147957d09205c0d2ce87b25c566862fd9
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Instead of asking the individual iterators for their path string, use
the TreeWalk's generic getPathString() method. Its just as fast
because it uses the path of the current matching iterator.
Change-Id: I9b827fbbafce1c78f09d5527cdc64fbe9022a16e
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
We add either 3 or 4 filters. If we are adding only 3 filters,
allocating the array for 4 isn't a huge waste of memory, but it
does simplify our code.
Change-Id: I7df29b414f6d5cfcf533edb1405083e6fcec32cf
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
To improve runtime performance, caching the WorkingTreeOptions inside
of the Config object using the Config.SectionParser API allows
the WorkingTreeOptions to be accessed more efficiently whenever a
FileTreeIterator is constructed for the Repository.
Instead of passing the filemode handling option into isModified(),
the WorkingTreeIterator should always honor whatever setting has
been configured in this repository, as defined by its own copy of
the WorkingTreeOptions. This simplifies all of the callers as they
no longer need to lookup core.filemode on their own.
A few locations were changed from always using a hardcoded "true"
on the file mode to passing what is actually configured in the
repository. This is a behavior change, but corrects what should be
considered to be bugs as the core.filemode variable wasn't always
being used.
Change-Id: Idb176736fa0dc97af372f1d652a94ecc72fb457c
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
When indexing large blobs that are stored whole (non-delta form),
avoid allocating the entire blob in memory and instead stream it
through the SHA-1 checksum computation. This reduces the size
of memory required by IndexPack when processing very big blobs,
such as a 500 MiB uncompressable binary.
If the large blob already exists in the local repository, its
contents needs to be compared byte-for-byte after the entire pack
has been indexed, to ensure there isn't an unexpected SHA-1 collision
which may result in later data corruption. This compare is performed
as a streaming compare, again avoiding the large object allocation.
This change doesn't improve on memory utilization for large objects
stored as deltas. The change also doesn't improve handling for
any large commits, trees or annotated tags. There isn't much to
be done here for those objects, because they need to be passed down
to the ObjectChecker as a byte[]. Fortunately it isn't common for
these object types to be that large,
Bug: 312868
Change-Id: I862afd4cb78013ee033d4ec68c067b1774a05be8
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
CC: Roberto Tyley <roberto.tyley@guardian.co.uk>
Some method parameters in WorkingTreeIterator are never used. Remove
them. Especially the removal of the FS parameter in isModified()
simplifies upcoming performance optimizations.
Change-Id: I7c449589283a4a6b6e23f2586cd784febdca8bcd
Signed-off-by: Christian Halstrick <christian.halstrick@sap.com>
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
Its confusing that a new TreeWalk() needs to have reset() invoked
on it before addTree(). This is a historical accident caused by
how TreeWalk was abused within ObjectWalk.
Drop the initial empty tree from the TreeWalk and thus remove a
number of pointless reset() operations from unit tests and some of
the internal JGit code.
Existing application code which is still calling reset() will simply
be incurring a few unnecessary field assignments, but they should
consider cleaning up their code in the future.
Change-Id: I434e94ffa43491019e7dff52ca420a4d2245f48b
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
By inflating with an InputStream like API, it is possible to stream
through large objects rather than allocating the entire thing as
a byte[]. This change only refactors the inflation code within
IndexPack to use a streaming interface.
Change-Id: I5a84b486901c2cf63fa6a3306dd5fb5c53b4056b
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
CC: Roberto Tyley <roberto.tyley@guardian.co.uk>
java.io.File.delete() reports failure as an exceptional
return value false. Fix the code which silently ignored
this exceptional return value. Also remove some duplicate
deletion helper methods.
Change-Id: I80ed20ca1f07a2bc6e779957a4ad0c713789c5be
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Provide file helper methods in a reusable utility class to
replace many local implementations. java.io.File has some
methods reporting failure by returning false. We prefer to
throw IOException on failure so that callers can't forget
checking the return value.
Change-Id: I430c77b5d2cffcf8b47584326ad4817a7291845e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Static accessors should come before a constructor.
Change-Id: Iee1051ce4f2038f19a08741e7a3a33f06a97a3c0
Signed-off-by: Chris Aniszczyk <caniszczyk@gmail.com>
There are some files that need to exist so that the CLI can continue
after the rebase has been stopped due to conflicts
Change-Id: I3cb4dc98609c059bf0cf9fd5f9e47a9c681cea2d
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>
Shawn O. Pearce