CommitCommand should allow to specify whether empty commits (commits
having the same tree as the sole predecessor commit) are allowed or not.
Similar to native git's "--allow-empty" flag.
The defaults differ between JGit and native git even after this change.
When not specifying paths then by default JGit allows to create empty
commits while native git does not. It would be API breaking to change
this now.
Bug: 460301
Change-Id: I88feb0c3ffb2c686b1d0594e669729b065cda4cb
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Factor out the creation of the SideBandOutputStream objects into
a utility method that wraps it in a try-with-resource.
Remove the "unused" suppression that is now unnecessary, and add
declaration that the tests methods can throw Exception.
Change-Id: Iff02e4e3532bd6ab6e423f197e70d44c4f328d0b
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>
After creating a Transport instance callers should always call
its close() method. Use AutoCloseable to document this idiom
and allow use of try-with-resources.
Change-Id: I0c6ff3e39ebecdd7a028dbcae1856a818937b186
Also rename a local variable in one of the tests that was hiding
a class variable of the same name.
Change-Id: Ia9398157b87a78df6eef0b64a833c16ca2e57ce3
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>
Also remove a local variable in one of the tests that was
hiding a member variable with the same name.
Change-Id: Ia4d94cdbf2d83d8be2645f0a93d8891d01606c59
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>
Specify the expected exception in the annotation, instead of
catching it and calling `fail()` when it wasn't raised.
Change-Id: I8a640c0e42353533e4e73b85b50c224dc060f2d7
Signed-off-by: David Pursehouse <david.pursehouse@sonymobile.com>
Store these in the bootstrap layer where they are using $GIT_DIR
as the storage directory for any reference that does not contain '/'.
Change-Id: I5595bf514e4475b7c7e799c2c79446597a3abb4a
By showing the bootstrap layer in getAdditionalRefs() garbage
collector code can be more RefDatabase agnostic and not care about
the special case of RefTree and RefTreeNames for the purposes of
building up the roots to GC. Instead they can combine getRefs(ALL)
and getAdditionalRefs() and have a clean set of roots.
Change-Id: I665cd2456e9316640215b6a08bc728d1356f36d8
Require callers to pass in valid sets for both want and have
collections. Offer PackWriter.NONE as a handy constant for an
empty collection for the have part of preparePack instead of null.
Change-Id: Ifda4450f5e488cbfefd728382b7d30797e229217
This experimental code can be enabled in $GIT_DIR/config:
[core]
repositoryformatversion = 1
[extensions]
refsBackendType = RefTree
When these are set the repository will read references from the
RefTree rooted by the $GIT_DIR/refs/txn/committed reference.
Update debug-rebuild-ref-tree to rebuild refs/txn/committed only from
the bootstrap layer. This avoids misuse by rebuilding using packed-refs
and $GIT_DIR/refs tree.
Change-Id: Icf600e4a36b2f7867822a7ab1f1617d73c710a4b
Instead of storing references in the local filesystem rely on the
RefTree rooted at refs/txn/committed. This avoids needing to store
references in the packed-refs file by keeping all data rooted under
a single refs/txn/committed ref.
Performance to scan all references from a well packed RefTree is very
close to reading the packed-refs file from local disk.
Storing a packed RefTree is smaller due to pack file compression,
about 49.39 bytes/ref (on average) compared to packed-refs using
~65.49 bytes/ref.
Change-Id: I75caa631162dc127a780095066195cbacc746d49
With this support we no longer need the 'utf-8' alias. UTF-8 will be
automatically tried when the encoding header is not recognized and used
if the character sequence cleanly decodes as UTF-8.
Modernize some of the references to use StandardCharsets.
Change-Id: I4c0c88750475560e1f2263180c4a98eb8febeca0
These types were deprecated in 0.9.1 (aka 384a19eee0).
If anyone is still using them, its time to stop.
Change-Id: I3f73347ba78c639e0c6a504812bc1a0702f829b1
Consolidate copies of this function into one location.
Add some unit tests to prevent bugs that were accidentally
introduced while trying to make this refactoring.
Change-Id: I82f64bbb8601ca2d8316ca57ae8119df32bb5c08
A group of updates can be applied by updating the tree in one step,
writing out a new root tree, and storing its SHA-1. If references
are stored in RefTrees, comparing two repositories is a matter of
checking if two SHA-1s are identical. Without RefTrees comparing two
repositories requires listing all references and comparing the sets.
Track the "refs/" directory as a root tree by storing references
that point directly at an object as a GITLINK entry in the tree.
For example "refs/heads/master" is written as "heads/master".
Annotated tags also store their peeled value with ^{} suffix, using
"tags/v1.0" and "tags/v1.0^{}" GITLINK entries.
Symbolic references are written as SYMLINK entries with the blob of
the symlink carrying the name of the symbolic reference target.
HEAD is outside of "refs/" namespace so it is stored as a special
"..HEAD" entry. This name is chosen because ".." is not valid in
a reference name and it almost looks like "../HEAD" which names
HEAD if the reader was inside of the "refs/" directory.
A new Command type is required to handle symbolic references and
peeled references.
Change-Id: Id47e5d4d32149a9e500854147edd7d93c1041a39
Maven pom files force the local encoding to UTF-8 to ensure there are
no differences between machines. They also set the JVM max heap to
256m. Match both in Buck so that results are consistent.
Change-Id: Ice5476dd09352a444a0c97aa0dc28806fddf2ab4
Compile each test in its own java_test() target so they can run in
parallel, reducing total time spent testing on large machines.
$ buck test --all
[-] PROCESSING BUCK FILES...FINISHED 0.3s [100%]
[-] BUILDING...FINISHED 2.9s [100%] (351/383 JOBS, 351 UPDATED, 0.0% CACHE MISS)
[-] TESTING...FINISHED 98.1s (3360 PASS/15 SKIP/0 FAIL)
Change-Id: I8d6541268315089299f933ed23d785b1b3431133
Accept some of the same section keys that fsck does in git-core,
allowing repositories to skip over specific kinds of acceptable
broken objects, e.g.:
[fsck]
duplicateEntries = ignore
zeroPaddedFilemode = ignore
The zeroPaddedFilemode = ignore is a synonym for the JGit specific
allowLeadingZeroFileMode = true. Only accept the JGit key if git-core
key was not specified.
Change-Id: Idaed9310e2a5ce5511670ead1aaea2b30aac903c
Some ancient objects may be broken, but in a relatively harmless way.
Allow the ObjectChecker caller to whitelist specific objects that are
going to fail checks, but that have been reviewed by a human and decided
the objects are OK enough to permit continued use of.
This avoids needing to rewrite history to scrub the broken objects out.
Honor the git-core fsck.skipList configuration setting when receiving a
push or fetching from a remote repository.
Change-Id: I62bd7c0b0848981f73dd7c752860fd02794233a6
Hoist ObjectIdSet up to lib as part of the public API and add
the interface to some common types like PackIndex and JGit custom
ObjectId map types. This cleans up wrapper code in a number of
places by allowing direct use of the types as an ObjectIdSet.
Future commits can now rely on ObjectIdSet as a simple read-only
type to check a set of objects from a number of storage options.
Change-Id: Ib62b062421d475bd52abd6c84a73916ef36e084b
If a file (e.g. "A") and a subtree file (e.g. "A/foo.c") both appear
in the DirCache this cache should not be written out as a tree object.
The "A" file and "A" subtree conflict with each other in the same tree
and will fail fsck.
Detect this condition during DirCacheBuilder and DirCacheEditor
finish() so the application can be halted early before it updates a
DirCache that might later write an invalid tree structure.
Change-Id: I95660787e88df336297949b383f4c5fda52e75f5
If a PathEdit tries to store a file where a subtree was, or a subtree
where a file was, replace the entry in the DirCache with the new
name(s). This supports switching between file and tree entry types
using a DirCacheEditor.
Add new unit tests to cover the conditions where these can happen.
Change-Id: Ie843d9388825f9e3d918a5666aa04e47cd6306e7
Adding a path that already exists but is changing type such as
from symlink to subdirectory requires a NameConflictTreeWalk to
match up the two different entry types that share the same name.
NameConflictTreeWalk needs a bug fix to pop conflicting entries
when PathFilterGroup aborts the walk early so that it does not
allow DirCacheBuilderIterator to copy conflicting entries into
the output cache.
Change-Id: I61b49cbe949ca8b4b98f9eb6dbe7b1f82eabb724
Similar to nested directories, nested copyfiles won't work with git submodule
either.
Change-Id: Idbe965ec20a682fca0432802858162f8238f05de
Signed-off-by: Yuxuan 'fishy' Wang <fishywang@google.com>
Handle existing symlink as a file, not as directory if deleting a file
before creating (overriding) a symlink.
Bug: 484491
Change-Id: I29dbf57d1daec2ba98454975b093e1d381d05196
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
Previously, non-reuse deltas were only included in packStatistics if they
were not cached by the deltaWindow.
Change-Id: I7684d8214875f0a7569b34614f8a3ba341dbde9c
Signed-off-by: James Kolb <jkolb@google.com>
PathFilter and PathFilterGroup form JGit's implementation of git's
path-limiting feature in commands like log and diff. To save time
when traversing trees, a path specification
foo/bar/baz
tells the tree walker not to traverse unrelated trees like qux/. It
does that by returning false from include when the tree walker is
visiting qux and true when it is visiting foo.
Unfortunately that test was implemented to be slightly over-eager: it
doesn't only return true when asked whether to visit a subtree "foo"
but when asked about a plain file "foo" as well. As a result, diffs
and logs restricted to some-file/non-existing-suffix unexpectedly
match against some-file:
$ jgit log -- LICENSE/no-such-file
commit 629fd0d594
Author: Shawn O. Pearce <spearce@spearce.org>
Date: Fri Jul 02 14:52:49 2010 -0700
Clean up LICENSE file
[...]
Fix it by checking against the entry's mode.
Gitiles +log has the same bug and benefits from the same fix.
Callers know not to worry about what subtrees are included in the tree
walk because shouldBeRecursive() returns true in this case, so this
behavior change should be safe. This also better matches the behavior
of C git:
$ empty=$(git mktree </dev/null)
$ git diff-tree --abbrev $empty HEAD -- LICENSE/no-such-file
$ git diff-tree --abbrev $empty HEAD -- tools/no-such-file
:000000 040000 0000000... b62648d... A tools
Bug: 484266
Change-Id: Ib4d53bddd8413a9548622c7b25b338d287d8889d
Expand the existing PathFilterGroup tests to check which paths the
tree entry matches. This expands test coverage by ensuring that
PathFilterGroup's simpler code path to match against a single
PathFilter works correctly.
While at it, move the check on tree entry d/e/f/g.y into two separate
tests: one to check that it doesn't match any of the configured paths,
and another to check that it does not throw StopWalkException to end
the walk early.
Change-Id: I55bd512cd049fc2018659e2f86a4b8650f171fda
If an application uses PushConnection directly on the native Git wire
protocols JGit should send along the application's expected oldId, not
the advertised value. This allows the remote peer to compare-and-swap
since it was not tested inside JGit.
Discovered when I tried to use a PushConnection (bypassing the
standard PushProcess) and the client blindly overwrote the remote
reference, even though my app had supplied the wrong ObjectId for
the expectedOldObjectId. This was not expected and cost me over an
hour of debugging, plus "corruption" in the remote repository.
By passing along the exact expectedOldObjectId from the app the
remote side can do the check that the application skipped, and
avoid data loss.
Change-Id: Id3920837e6c47100376225bb4dd61fa3e88c64db
FileTreeIterator was calling by mistake
WorkingTreeIterator.idSubmodule(Entry). Instead it should always compute
idSubmodule on its own.
Change-Id: Id1b988aded06939b1d7edd2671e34bf756896c0e
This should mirror the behavior of `git push --atomic` where the
client asks the server to apply all-or-nothing. Some JGit servers
already support this based on a custom DFS backend. InMemoryRepository
is extended to support atomic push for unit testing purposes.
Local disk server side support inside of JGit is a more complex animal
due to the excessive amount of file locking required to protect every
reference as a loose reference.
Change-Id: I15083fbe48447678e034afeffb4639572a32f50c
Instead of checking every entry for .gitattributes only look for the
entry on request by TreeWalk. This avoids impacting uses like RevWalk
filtering history.
When the attrs is requested skip to the start of the tree and look for
.gitattributes until either it is found, or it is impossible to be
present. Due to the sorting rules of tree entries .gitattributes
should be among the first or second entries in the tree so very few
entries will need to be considered.
Waiting to find the .gitattributes file by native ordering may miss
attrs for files like .config, which sorts before .gitattributes.
Starting from the front of the tree on demand ensures the attributes
are parsed as early as necessary to process any entry in the tree.
Due to TreeWalk recursively processing up the tree of iterators we
cannot just reset the current CanonicalTreeParser to the start as
parent parsers share the same path buffer as their children.
Resetting a parent to look for .gitattributes may overwrite path
buffer data used by a child iterator. Work around this by building a
new temporary CanonicalTreeParser instance.
Change-Id: Ife950253b687be325340d27e9915c9a40df2641c
The checkPath function is available as a byte[] form, in fact the
String form just converts to byte[] to run the algorithm.
Having DirCacheEntry take a byte[] -> String -> byte[] to check if
each path is valid is a huge waste of CPU time. On some systems it
can double the time required to read 38,999 files from trees to the
DirCache. This slows down any operation using a DirCache.
Expose the byte[] form and use it for DirCacheEntry creation.
Change-Id: I6db7bc793ece99ff3c356338d793c07c061aeac7
If defined in .gitattributes call smudge filter during checkout.
To support checkout where current HEAD,index do not contain attributes
we need to also consider attributes from the tree we checkout. Therefore
CanonicalTreeParser has to learn how to provide attributes.
Change-Id: I168fdb81a8e1a9f991587b3e95a36550ea845f0a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Christian Halstrick
David Pursehouse
Matthias Sohn
Shawn Pearce
Andrey Loskutov
Shawn Pearce
Yuxuan 'fishy' Wang
James Kolb
Jonathan Nieder
Mike Gilbode
Kaloyan Raev