Commit Graph

835 Commits

Author SHA1 Message Date
Shawn Pearce 67e176e529 Merge "ConfigConstants: expose some constants for user name and email." 2011-01-12 10:47:55 -05:00
Shawn Pearce 600f624a35 Merge "CheckoutCommand: fix reflog message" 2011-01-12 10:46:23 -05:00
Shawn Pearce 11f2b849a3 Merge "Locate $HOME like C Git does on Windows" 2011-01-12 10:44:57 -05:00
Roberto Tyley 944fcdae66 Fix API ListBranchCommand for listmode 'all'
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.
2011-01-12 14:34:10 +00:00
Robin Rosenberg 0fd9676771 Locate $HOME like C Git does on Windows
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>
2011-01-12 14:58:55 +01:00
Mathias Kinzler 7047d2fa8d CheckoutCommand: fix reflog message
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>
2011-01-12 13:19:32 +01:00
Mathias Kinzler 5ebfdc8091 ConfigConstants: expose some constants for user name and email.
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>
2011-01-12 08:50:12 +01:00
Matthias Sohn 838fdb342b Merge "Do not cherry-pick or revert commit more than once" 2011-01-10 09:00:30 -05:00
Robin Rosenberg 2058f9272b Do not cherry-pick or revert commit more than once
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>
2011-01-10 08:47:14 +01:00
Shawn O. Pearce 05ca0c49f9 Merge "Use heap based stack for PackFile deltas" 2011-01-09 19:20:13 -05:00
Shawn O. Pearce 680869d779 Merge "Config: Preserve existing case of names in sections" 2011-01-09 19:19:08 -05:00
Sasa Zivkov 1993cf8a27 Merging Git notes
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>
2011-01-09 00:27:56 +01:00
Marc Strapetz c87ae94c70 Fix IgnoreRule for directory-only patterns
Patterns containing only a trailing slash have to be treated
as "global" patterns. For example: "classes/" matches "classes"
as well as "dir/classes" directory.
2011-01-07 12:53:14 +01:00
Shawn O. Pearce b2d528887c Config: Preserve existing case of names in sections
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>
2011-01-06 11:13:45 -08:00
Shawn O. Pearce 165358bc99 Use heap based stack for PackFile deltas
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>
2011-01-06 09:48:43 -08:00
Sasa Zivkov 7cd812940d NoteMap implements Iterable<Note>
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>
2011-01-05 08:24:13 +01:00
Robin Rosenberg b3e59bd9d6 Implement a revert command
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>
2011-01-02 22:15:07 +01:00
Shawn Pearce 9a3ce780fc Merge "[findbugs] Make CheckoutResult constants final" 2010-12-31 17:08:23 -05:00
Robin Rosenberg d9e07a574a Convert all JGit unit tests to JUnit 4
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>
2010-12-31 14:00:05 -08:00
Shawn Pearce 7cf8b8812f Merge "Add support for getting the system wide configuration" 2010-12-31 16:13:33 -05:00
Robin Rosenberg 797ebba307 Add support for getting the system wide configuration
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>
2010-12-31 11:48:34 +01:00
Shawn Pearce 4da775eaff Merge "IndexPack: Use stack-based recursion for delta resolution" 2010-12-30 19:52:47 -05:00
roberto b5f0a7d7ff IndexPack: Use stack-based recursion for delta resolution
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>
2010-12-30 16:49:24 -08:00
Matthias Sohn 65ccadeced [findbugs] Make CheckoutResult constants final
Change-Id: I9117f212e2ad7051fdc6e7417ebc7c2d15b357a8
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2010-12-30 23:04:43 +01:00
Robin Rosenberg 240769e023 Refactor exec of a command and reading one line into utility
Change-Id: Ia9e5afe7f29c3e5e74b8d226441ed429fb229c82
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
2010-12-30 12:41:22 -08:00
Robin Rosenberg 14b358a6fb Refactor search for a file within a PATH
Change-Id: I785ab6bf1823d174394b1d2b25c5bb202535e943
2010-12-30 12:38:18 -08:00
Shawn Pearce 7a1bd7adb1 Merge "Fix FileSnapShot" 2010-12-30 15:31:06 -05:00
Robin Rosenberg c3f52c62a8 Fix FileSnapShot
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>
2010-12-30 01:15:59 +01:00
Shawn Pearce 4170913b1b Merge "CheckoutResult: return paths instead of Files" 2010-12-29 14:29:49 -05:00
Shawn O. Pearce 6533994bc9 Fix ArrayIndexOutOfBoundsException in DirCacheIterator
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>
2010-12-22 14:11:22 -08:00
Shawn O. Pearce 0cd76ab65d Correct GIT_INDEX_FILE environment variable
This is GIT_INDEX_FILE, not GIT_INDEX.

Change-Id: Ib3af28ba196f74c8cb4d318b57ea346bb90f9a1e
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-12-22 11:26:33 -08:00
Mathias Kinzler e272ca0f14 CheckoutResult: return paths instead of Files
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>
2010-12-21 10:06:19 +01:00
Chris Aniszczyk 8f419dc5e6 Merge "FileBasedConfig: Use FileSnapshot for isOutdated()" 2010-12-20 12:06:00 -05:00
Mathias Kinzler 89a4dcf71f Checkout: fix handling if name does not refer to a local branch
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>
2010-12-20 09:30:40 -06:00
Chris Aniszczyk a92bda5adf Merge "Extract pack directory last modified check code" 2010-12-20 10:27:33 -05:00
Mathias Kinzler 645d262de6 Checkout: expose a CheckoutResult
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>
2010-12-20 10:21:49 +01:00
Robin Rosenberg 94a2cbb407 Fix wrong javadoc comment in Repository
Change-Id: I9fc084b48418884ce1ccf16d56e800f1d3594885
Signed-off-by: Robin Rosenberg <robin.rosenberg@dewire.com>
2010-12-19 11:03:23 +01:00
Robin Rosenberg 33c6eb848e Merge "Move TransferConfig to transport package" 2010-12-18 10:43:26 -05:00
Matthias Sohn 485917598e Qualify post 0.10 builds
Change-Id: Ifcb8fdea95286779c8aea6bf4d7647e8c1c98d63
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2010-12-17 15:49:30 +01:00
Matthias Sohn 67d8f3a338 Merge branch 'stable-0.10' 2010-12-17 15:41:27 +01:00
Matthias Sohn 51d1af9489 Qualify post 0.10.1 builds
Change-Id: I320f1f739f3689daf11d532a55ae1133785aec8e
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2010-12-17 15:23:14 +01:00
Matthias Sohn 1fdc17bfe4 JGit 0.10.1
Change-Id: I4a46d35d354193e5d4f28ef7dfae75944be8ffcf
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2010-12-17 03:10:07 +01:00
Mathias Kinzler 73f36aa8f7 DirCacheCheckout: fix getToBeDeleted()
This wrongly returns the same as getConflicts()
Signed-off-by: Mathias Kinzler <mathias.kinzler@sap.com>

Change-Id: Id37c625458fc5a9b3987f05b684620e24fdfe852
2010-12-16 08:41:36 +01:00
Shawn O. Pearce 34454465c2 Move TransferConfig to transport package
This doesn't belong in the main lib package.

Change-Id: Idb20bf5849138b34a7277250fe0795c2a1f22447
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
2010-12-15 17:04:03 -08:00
Shawn Pearce c19093bbad Merge "Do not rely on filemode differences in case of symbolic links" 2010-12-15 18:55:59 -05:00
Shawn O. Pearce 3922e026e0 FileBasedConfig: Use FileSnapshot for isOutdated()
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>
2010-12-15 15:14:05 -08:00
Shawn O. Pearce c8db22f355 Extract pack directory last modified check code
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>
2010-12-15 15:14:05 -08:00
Shawn O. Pearce 013cb8de38 Reduce calls to Repository.getConfig
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>
2010-12-15 15:14:05 -08:00
Shawn O. Pearce 86847ee322 Support GIT_SSH=tortoiseplink
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>
2010-12-15 10:18:03 -08:00
Shawn O. Pearce 8efbd378e1 Correct plink -batch option
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>
2010-12-15 10:17:01 -08:00