Write the old object id from the RefUpdate to the
ORIG_HEAD file after the update completes.
Add two new convenience methods to Repository to read
and write the ORIG_HEAD reference similar to the methods
for reading/writing CHERRY_PICK_HEAD and MERGE_HEAD.
Bug: 375525
Change-Id: I120b3b2cd3b1ddae88fce435285bae15cbf96f5e
Git API does not declare GitAPIException call() and related cleanups
All commands should throw a GitAPIException so new exceptions can be
added without breaking the builds of old code, i.e. anyone that calls
a Git API should catch GitAPIException and not just the currently known
exceptions.
Now the only checked exceptions on Git API calls are GitException and
subclasses of it. New checked exceptions that are subclasses of
GitException may be added without breaking the API.
Javadoc for GitAPIException is declared on GitCommand and
inherited to subclasses. JGitInternalException is not explicitly
documented anymore.
Unfortunately this change itself breaks the API. The intention is
that it shall be possible to add new checked subclasses of
GitAPIException without breaking the API.
Bug: 366914
EGit-Change-Id: I50380f13fc82c22d0036f47c7859cc3a77e767c5
Change-Id: I50380f13fc82c22d0036f47c7859cc3a77e767c5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This is needed to allow jumping to a selected commit when loading
history incrementally.
Change-Id: Id3b97d88d3b4b2d67561b11f8810cb88fe040823
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Only increment mod count if packed-refs file changes
Previously if a packed-refs file was racily clean then there
was a 2.5 second window in which each call to getPackedRefs
would increment the mod count causing a RefsChangedEvent to be
fired since the FileSnapshot would report the file as modified.
If a RefsChangedListener called getRef/getRefs from the
onRefsChanged method then a StackOverflowError could occur
since the stack could be exhausted before the 2.5 second
window expired and the packed-refs file would no longer
report being modified.
Now a SHA-1 is computed of the packed-refs file and the
mod count is only incremented when the packed refs are
successfully set and the id of the new packed-refs file
does not match the id of the old packed-refs file.
Change-Id: I8cab6e5929479ed748812b8598c7628370e79697
Retain file length and mod time when doing a mixed reset
Previously the index was cleared and updated with a new tree.
Now the commit being reset to and the index are iterated over
in a tree walk and the current index mod time and file length
are copied over to the new dir cache entry being written if
the object ids are the same.
Change-Id: Iaf9e624efb0bf90f9e05fcb0587dde4dec50000c
Overload DirCache.lock to take a repository that is
used for updating smudged index entries with information
from the repository's working tree.
New unit tests are also added for updating smudged index
entries on reset, checkout, and commit.
Change-Id: I88689f26000e4e57e77931e5ace7c804d92af1b6
When reset command was called with tag name as parameter the resulting
HEAD was set to the tag's SHA-1 which is a bug. This patch ensures that
repository.resolve() call always returns commit id.
Change-Id: I219b898c620a75c497c8652dbf4735fd094c4d7c
Signed-off-by: Dariusz Luksza <dariusz@luksza.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Use BatchRefUpdate for tracking refs in FetchProcess
If there are a lot of references to modify, using BatchRefUpdate can
save time if the underlying storage is able to combine these updates
together. This should speed up initial clone or fetch into an empty
repository, as some projects can have hundreds of release tags, or
hundreds of branch heads.
Change-Id: Iee9af8d5fa19080077d88357c18853540936e940
clone, fetch and push can all update multiple references in a single
command invocation. Rather than performing sequential iteration
of each reference change inside of the application code, push this
down into the reference database where the implementation can take
advantage of the batch size and optimize itself.
For the local filesystem implementation the obvious optimization
is to write a packed-refs file when the repository is completely
empty. The initial clone, fetch or push into the destination may
have hundreds of new references. Writing all of these as loose
files is not efficient. This optimization is not implemented in
this commit and is left as an exercise for the reader to supply
in a future commit to JGit.
To make the API changes simple, define the BatchRefUpdate type and
implementation using the existing sequential behavior.
Change-Id: I8e1674f091e05e24e3ff56ccbc687a6d18a6a61e
Expose ReceiveCommand.updateType to check for UPDATE_NONFASTFORWARD
When a command's type is UPDATE, JGit might not yet be sure if it
is a fast-forward or not. Expose a utility method to compute the
exact type by performing the merge base test, allowing the type
to be switched to UPDATE_NONFASTFORWARD if old ObjectId is not
contained in new ObjectId.
BaseReceivePack already does this test when validating the incoming
command list, so provide a package level backdoor to set the type
and avoid needing to redo the merge test later.
Change-Id: If5a6fcc50dc4d6f96e9bb0bb7bba15ebe8b86377
Reject non-fast-forwards earlier in BaseReceivePack
If BaseReceivePack has setAllowNonFastForwards(false) configured
(such as by receive.denynonfastforwards), automatically reject
any command that attempts a non-fast-forward update before it goes
further in processing.
This matches with other checks in validateCommands(), such as the
early failure of delete attempts when isAllowDeletes() is false.
Change-Id: I3bb28e4dd6d17cb31ede09eb84ceb67cdb17ea5d
Smudge index entries on first write (too), as well when reading
That happens when the index and a new file is created within the same
second and becomes a problem if we then modify the newly created file
within the same second after adding it to the index. Without smudging
JGit will, on later reads, think the file is unchanged.
The accompanying test passed with the smuding on read.
Change-Id: I4dfecf5c93993ef690e7f0dddb3f3e6125daae15
This is needed to allow jumping to a selected commit when loading
history incrementally.
Change-Id: Id3b97d88d3b4b2d67561b11f8810cb88fe040823
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
"Auth fail" exception was swallowed during retrying, this leads to
"Session down" exception during clone operation with invalid SSH keys.
Bug: 336795
Change-Id: Id8d9e83b10f4f2a01e0cf89819190bb23a04a2b9
Signed-off-by: Dariusz Luksza <dariusz@luksza.org>
We are working on a publish/subscribe based git protocol, and we want to
reuse several parts of the ReceivePack-like code for reading commands
and processing a pack. In this new implementation, the connection
management will be very different, in particular, there may be multiple
packs received on a single open connection. So, hoist out as much as we
can from ReceivePack, mostly just leaving behind the single-connection
version in that class.
Change-Id: I5567aad6ae77951f73f59c1f91996d934ea88334
'mergeStrategy' should be 5th argument, after 'mergeStatus'. Pass
'description' if available.
Change-Id: I97cebfe5d7db6247fe899075d917b82955906f85
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
Change-Id: I0a86ce0e393dfde9bb27f0b29e036e76c856396e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Signed-off-by: Chris Aniszczyk <zx@twitter.com>
Remove throws IOException declaration on filterClean
This method only creates an EolCanonicalizingInputStream
which does not throw an IOException and so the throws
declaration on the method is unneeded.
Change-Id: Icae8b80006c5e3ffcf3b69790a1a45c505be0f05
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add Object type to Comparable implements declaration
This removes unchecked warnings when a List of
AnyObjectId objects or any of its subclasses are
passed to Collections.sort such as in PackWriter
Change-Id: I806732cee24349c75c0357a655df55b070f2f213
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Use Integer.intValue to explicitly convert to an int
Change-Id: I1135ed01af4e274b26d6b07d1a50f48ef0a30d91
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Use the NullOutputStream.INSTANCE value when the
configured output stream is null or the command is
configured to only show name and status.
Also only set the context and prefix options if
formatting is actually being performed.
Bug: 377157
Change-Id: I333cfcc82ee746f3c6a8e94c09dcc803ffbb4b3a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Compare modes before comparing ids in ResolveMerger
Comparing ids can be more expensive so do the cheap
mode check first and short circuit the id comparison
when modes are non-equal
Change-Id: I671eda51c74a411cc27de9d6077cc76e816ebe2b
Use Integer, Character, and Long valueOf methods when
passing parameters to MessageFormat and other places
that expect objects instead of primitives
Change-Id: I5942fbdbca6a378136c00d951ce61167f2366ca4
The catched exception was just rethrown and the
null check of the locked dir cache was unneeded if
the assignment was done outside the try block.
Change-Id: If2ee1f3eff3849f8da51eab825057fc56e166a94
DirCacheCheckout and CanonicalTreeParser cooperate. CanonicalTreeParser
can detect malformed, potentially malicious tree entries and sets a
flag, while DirCacheCheckout refuses to work with such paths.
Malicious tree entries are ".", "..", ".git" (case insensitive), any
name containing '/' and (on Windows '\') and also (on Windows)
any paths ending in a combination of '.' or space or containing a ':'.
We also forbid all special names like "con" etc on Windows.
Some of the test can execute on any platform by enabling partial
platform emulation.
A new runtime exception, InvalidPathException, is introduced. For
backwards compatibility it extends InvalidArgumentException.
Change-Id: I86199105814b63d4340e5de0e471d0da6b579ead
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Allow adding files with size over 2 GB. The drawback is that the tests
for huge file support adds roughly 10 minutes of execution time.
For that reason we @Ignore the test in the standard test execution.
Change-Id: I5788e8009899203b346f353297166825b3744575
Enable DirCacheEntry's copyMetaData to not copy stage info
When there is a conflict sometimes we did not set the stage of
the conflict entries properly for the STAGE_1 entry.
Change-Id: I1c28ff6251fdbc95f7c40fc3e401f1b41157a9f6
The size shoould be passed to BufferedOutputStream's constructor.
All callers seem to use the default, but that could change.
Change-Id: I874afee6a9114698805e36813781547e6aa328a5
Tags can be un-annotated whereby there is no RevTag object, only
a ref pointing to the tagged object.
Bug: 360650
Change-Id: I06309c45c0a896fe2a0a874700febf78c9fb87e8
A DirCache was not unlocked if an exception occurred in the
DirCacheCheckout constructor.
Bug: 365449
Change-Id: I231d902d52e3e5e9a7748eedaa63a2bb889ebb13
Signed-off-by: Jens Baumgart <jens.baumgart@sap.com>
Index config section and subsection names in one pass
Instead of indexing the subsection names on each request for a given
section name, index both the section and subsection names in a single
scan through the entry list. This should improve lookup time for
reading the section names out of the configuration, especially for the
url.*.insteadof type of processing performed in RemoteConfig.
Change-Id: I7b3269565b1308f69d20dc3f3fe917aea00f8a73
Don't use java.nio channel for file size determination
Java NIO has some problems (like files closing unexpectedly because the
thread was interrupted). To avoid those problems, don't use a NIO
channel to determine the size of a file, but rather ask the File itself.
We have to be prepared to handle wrong/outdated information in this case
too, as the inode of the File may change between opening and determining
file size.
Change-Id: Ic7aa6c3337480879efcce4a3058b548cd0e2cef0
Iterate over all successfully cloned submodules recursively
and continue initializing and updating until no more are found.
Bug: 375426
Change-Id: Ifb99e41e2deb0c369442bca3c0f5f072dd006816
Parsing the size from a packed object header was incorrectly computing
the total inflated length when the length exceeded the range of a Java
int. The next 7 bits of size information was shifted left as an int
using a shift of 25 bits, placing the higher bits of the size into the
sign position. When this size was extended to a long to be added to
the current size accumulator the size went negative, resulting in
NegativeArraySizeException being thrown.
Fix all places where this particular pattern of code is used to read a
pack size field, or a binary delta header, as they both use the same
variable length encoding scheme.
Change-Id: I04008728ed828f18202652c3d5401cf95a441d0a
Decrease running time for getStringList (and all other get methods) by
looking for configuration entries using binary search rather than
linear search through the configuration file.
Configuration lines are sorted by section, subsection, name in a
sorted list whenever the snapshot is rebuilt. Binary search is used to
locate an index in the middle of the values, then walk backwards to
find the first value in the range.
Given a configuration of file of 5000 distinct section/subsection/name
triplets (e.g. a Gerrit Code Review project.config configuration file
with 5000 unique access control rules), this new code is faster to
lookup each rule individually using getStringList():
old setStringList() 194 usec avg
getStringList() 196 usec avg
new setStringList() 188 usec avg
getStringList() 24 usec avg
Change-Id: Ic8907231868c18eb946b72f341a6b58666b70324
The Config class is getting very large. Extract two of its inner
classes into new top level types to reduce the size of Config.
Rename them slightly in the process.
Change-Id: I693148a5ae2977378789bf455c880a6fd856c0f0
Content length is computed and cached (short term) in the working
tree iterator when core.autocrlf is set.
Hopefully this is a cleaner fix than my previous attempt to make
autocrlf work.
Change-Id: I1b6bbb643101a00db94e5514b5e2b069f338907a
Allow RepositoryResolver to throw ServiceMayNotContinueException
Implementations may want to send an error message to the user, which
doesn't really fit with any of the existing exception types.
ServiceMayNotContinueException, on the other hand, is documented as
always containing a user-visible error string, so use that.
Modify the git and HTTP transport mechanisms to properly relay this
message to the end user.
Change-Id: I362e67ea46102a145bf2c6284d38788537c9735f
Kevin Sawicki
Matthias Sohn
Robin Rosenberg
Dariusz Luksza
Shawn O. Pearce
Dave Borowitz
Tomasz Zarna
Jens Baumgart
Markus Duft