Commit Graph

3443 Commits

Author SHA1 Message Date
Matthias Sohn b03be9a3ea Fix wrong @since tags introduced by 1beb3ccd
1beb3ccd1e was submitted in 4.6.0-SNAPSHOT

Change-Id: I33e027dbd0995ba36491bd9e2d4b3c84f9f0abd6
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-21 23:37:18 +02:00
Matthias Sohn 1b11f4fdda Merge branch 'stable-4.5'
* stable-4.5:
  Turn off doclint also during Maven site generation
  Prepare 4.5.1-SNAPSHOT builds
  JGit v4.5.0.201609210915-r
  Unconditionally close repository in unregisterAndCloseRepository

Change-Id: Ibfd11669cd74d2e62b014c18fd39b646b200c8c5
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-21 18:08:00 +02:00
Matthias Sohn cb617e7ffc Prepare 4.5.1-SNAPSHOT builds
Change-Id: I3305e8a09a3fb06f25a316cff2bdbb551d3ade68
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-21 17:05:27 +02:00
Matthias Sohn e7142a3937 JGit v4.5.0.201609210915-r
Change-Id: Idc02a1a1d74f84605d764c239803f0cfbad94eb7
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-21 15:06:18 +02:00
Saša Živkov b7df7d1fd3 Unconditionally close repository in unregisterAndCloseRepository
Repository.close() method is used when reference counting and expiration
needs to be honored. The RepositoryCache.unregisterAndCloseRepository
method should close the repository unconditionally. This is also indicated
from its javadoc.

Change-Id: I19392d1eaa17f27ae44b55eea49dcff05a52f298
2016-09-21 13:22:51 +02:00
Shawn Pearce 6cd6ccb65a Merge "Add ReceivedPackStatistics for PackParser" 2016-09-20 15:29:27 -04:00
Matthias Sohn ab79ce91c1 Change JGit minimum execution environment to JavaSE-1.8
Bug: 500059
Change-Id: I47f3f6749a67da52029f84e002d9b155ed56d2b7
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-20 11:32:36 +02:00
Christian Halstrick e4e39a6d05 Move AtomicObjectOutputStream to lfs/internal
The class AtomicObjectOutputStream should be available to all lfs
related classes, not only to the server side. Move the class from
org.eclipse.jgit.lfs.server.fs to org.eclipse.jgit.lfs.internal to
achieve that.

Change-Id: I028e1c9ec7c21f316340b21d558b9a6b77e2060d
2016-09-20 10:58:20 +02:00
Christian Halstrick bcb5a431a5 Add built-in LFS smudge filter for local case
Adds a JGit built-in implementation of the "git lfs smudge" filter. This
filter should do the same as the one described in [1] besides that it
only supports the local case when the lfs objects are already present in
the media directory. Remote cases where download of LFS objects from an
LFS server is needed will be done in a later commit.

[1] https://github.com/github/git-lfs/blob/master/docs/man/git-lfs-smudge.1.ronn

Change-Id: I8ff661d4edd3667ef7f86f3b4fa33e568eb4c8f4
2016-09-20 10:58:05 +02:00
Christian Halstrick b70f3a7457 Add configuration parameter to enable built-in hooks/filters
If the configuration parameter filter.<filterDriverName>.useJGitBuiltin
is set to true then for all corresponding filters JGit will try to
execute the built-in filter instead of the filter-command which is
defined in git configuration. It will fallback to the non-built-in
filters if no built-in filters are registered or if constructing them
leads to exceptions. If set to false JGit will not try to execute
built-in filters for the specified filter driver.

Example: The configuration contains the following lines

  [filter "lfs"]
    clean = git-lfs clean -- %f
    smudge = git-lfs smudge -- %f
    useJGitBuiltin = true

Addtionally the .gitattributes file in the root of the working tree
contains:

    *.bin filter=lfs

In this case when new content is added similar to "git add 1.bin" then
the following will happen:

  - jgit will check whether a built-in command factory was registered
    for the command "jgit://builtin/lfs/clean". If that is true the
    factory is used to create a built-in filter command and that
    command is used to filter the content
  - Otherwise jgit will call the external program "git lfs clean ..."
    to do the filtering

Change-Id: Idadb1db06b1e89e7031d7ed6319904973c367d38
2016-09-20 10:06:13 +02:00
Christian Halstrick d97248467a Add support for built-in smudge filters
JGit supports smudge filters defined in repository configuration. The
filters are implemented as external programs filtering content by
accepting the original content (as seen in git's object database) on
stdin and which emit the filtered content on stdout. This content is
then written to the file in the working tree. To run such a filter JGit
has to start an external process and pump data into/from this process.

This commit adds support for built-in smudge filters which are
implemented in Java and which are executed by jgit's main thread. When a
filter is defined in the configuration as
"jgit://builtin/<filterDriverName>/smudge" then JGit will lookup in a
static map whether a builtin filter is registered under this name. If
found such a filter is called to do the filtering.

The functionality in this commit requires that a program using JGit
explicitly calls the JGit API to register built-in implementations for
specific smudge filters. In follow-up commits configuration parameters
will be added which trigger such registrations.

Change-Id: Ia743aa0dbed795e71e5792f35ae55660e0eb3c24
2016-09-20 10:02:20 +02:00
Christian Halstrick b5bec73715 Add support for built-in clean filters
JGit supports clean filters defined in repository configuration. The
filters are implemented as external programs filtering content by
accepting the original content (as seen in the working tree) on stdin
and which emit the filtered content on stdout. To run such a filter JGit
has to start an external process and pump data into/from this process.

This commit adds support for clean filters which are implemented
in Java and which are executed by jgit's main thread. When a filter is
defined in the configuration as
"jgit://builtin/<filterDriverName>/clean" then JGit will lookup in a
static map whether a filter is registered under this name. If found
such a filter is called to do the filtering.

The functionality in this commit requires that a program using JGit
explicitly calls the JGit API to register built-in implementations for
specific clean filters. In follow-up commits configuration parameters
will be added which trigger such registrations. Other commits will add
implementations for lfs filters.

Change-Id: I0344d3c54801c9a46e5a606c5df17e5f2e17b2be
2016-09-20 09:57:48 +02:00
Masaya Suzuki 1beb3ccd1e Add ReceivedPackStatistics for PackParser
This is like PackStatistics, but for PackParser.

Change-Id: I854215c0956fd0b36843d631780be303e021b8be
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
2016-09-19 15:53:50 -07:00
Matthias Sohn 9d4ffcc1ab Prepare 4.6.0-SNAPSHOT builds
Change-Id: Id2eafc331ee32c332c2a9b867b05c260beb0d10f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-19 17:06:42 +02:00
Thomas Wolf aadbb158e1 Handle all values of branch.[name].rebase
BranchConfig treated this config property as a boolean, but git also
allows the values "preserve" and "interactive". Config property
pull.rebase also allows the same values.

Replace private enum PullCommand.PullRebaseMode by new public enum
BranchConfig.BranchRebaseMode and adapt all uses. Add a new setter to
PullCommand.

Note: PullCommand will treat "interactive" like "true", i.e., as a
non-interactive rebase. Not sure how "interactive" should be handled.
At least it won't balk on it.

Bug: 499482
Change-Id: I7309360f5662b2c2efa1bd8ea6f112c63cf064af
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
2016-09-15 00:44:23 +02:00
Andrey Loskutov 619329c84e Ignore trailing spaces in directory rule patterns
Bug: 500967
Change-Id: I7fabc2654af97011c62f46d5c30ee992341e45e2
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
2016-09-14 07:43:52 -04:00
Martin Goellnitz 57a263f182 Add support for post-commit hooks
Change-Id: I6691b454404dd4db3c690ecfc7515de765bc2ef7
Signed-off-by: Martin Goellnitz <m.goellnitz@outlook.com>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-13 17:13:48 +02:00
Matthias Sohn abeaafc9c7 Don't log error if system git config does not exist
- enhance FS.readPipe to throw an exception if the external command
fails to enable the caller to handle the command failure
- reduce log level to warning if system git config does not exist
- improve log message 

Bug: 476639
Change-Id: I94ae3caec22150dde81f1ea8e1e665df55290d42
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-09-05 17:41:36 +02:00
Shawn Pearce 3100662a5a ReceivePack: integrate push option parsing into recvCommands
This allows the same try/catch to handle parsing the command list,
push certificate and push options. Any errors will be caught and
handled by the same catch block, as the client is in the same state.

Change-Id: I13a66f9100e2dc8ca8f72cd701a5bd44d093ec84
2016-08-29 12:31:22 -07:00
Shawn Pearce 2fd4559773 ReceivePack: simplify getPushOptions
Checking if the instance allows push options before returning the
collection or null is a bit overkill. Just return the collection
or return null.

Change-Id: Icdc3755194373966e5819284aeb9bfe8dd34de82
2016-08-29 12:31:22 -07:00
Shawn Pearce 8e00a317b2 ReceivePack: allow push options to be set
Some embeddings of JGit require creating a ReceivePack instance in
another process from the one that handled the network socket with the
client.  Similar to the PushCertificate add a setter to allow the
option list to be supplied.

Change-Id: I303a30e54942ad067c79251eff8b53329c406628
2016-08-29 12:31:22 -07:00
Jonathan Nieder dd2a5a7faf Make GC.RepoStatistics static
Noticed by error-prone (http://errorprone.info/bugpattern/ClassCanBeStatic).

Change-Id: Ie271e9e789a5bc764a287f7bd2a8c8af297d7d41
2016-08-26 16:29:32 -07:00
Shawn Pearce c2e2326a43 ReceivePack: refactor push option parsing
Refactor all of the push option support code to allocate the list
immediately before parsing the options section off the stream.

Move option support down to ReceivePack instead of BaseReceivePack.
Push options are specific to the ReceivePack protocol and are not
likely to appear in the 4 year old subscription proposal.  These
changes are OK before JGit 4.5 ships as no consumer should be relying
on these new APIs.

Change-Id: Ib07d18c877628aba07da07cd91875f918d509c49
2016-08-26 14:53:54 -07:00
Stefan Beller 36cf4fe580 Fix push option initalization on HTTP
Initialize pushOptions when we decide to use them, instead of when we
advertise them.

In the case of HTTP the advertisement is in a different network
request, hence in a different instance of the BaseReceivePack.

Change-Id: I094c60942e04de82cb6d8433c9cd43a46ffae332
Signed-off-by: Stefan Beller <sbeller@google.com>
2016-08-26 14:52:07 -07:00
Shawn Pearce 3b64c09ac4 Merge "DfsReader: check object type during open" 2016-08-25 22:45:33 -04:00
Shawn Pearce 9ae7d493c4 DfsReader: check object type during open
Do not open an OBJ_TREE if the caller is expecting an OBJ_BLOB or
OBJ_COMMIT; instead throw IncorrectObjectTypeException.  This better
matches behavior of WindowCursor, the ObjectReader implementation of
the local file based object store.

Change-Id: I3fb0e77f54895b123679a405e1b6ba5b95752ff0
2016-08-25 19:17:09 -07:00
Masaya Suzuki 1227165e27 Clarify the semantics of DfsRefDatabase#compareAndPut
DfsRefDatabase#compareAndPut had a vague semantics for reference
matching. Because of this, an operation to make a symbolic
reference had been broken for some DFS implementations even if they
followed the contract of compareAndPut. The clarified semantics
requires the implementations to satisfy the followings:

* Matching references should be both symbolic references or both
  object ID references.
* If both are symbolic references, both should have the same target
  name.
* If both are object ID references, both should have the same object
  ID.

This semantics is defined based on
https://git.eclipse.org/r/#/c/77416/. Before this commit,
DfsRefDatabase couldn't see the target of symbolic references.

InMemoryRepository is changed to comply with the new semantics. This
semantics change can affect the existing DFS implementations that only
checks object IDs. This commit adds two tests that the previous
InMemoryRepository couldn't pass.

Change-Id: I6c6b5d3cc8241a81f4a37782381c88e8a59fdf15
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
2016-08-25 19:12:39 -07:00
Masaya Suzuki 3e27fb3719 Do not fake a SymbolicRef as an ObjectIdRef
When doing a detaching operation, JGit fakes a SymbolicRef as an
ObjectIdRef. This is because RefUpdate#updateImpl dereferences the
SymbolicRef when updating it. For example, assume that HEAD is
pointing to refs/heads/master. If I try to make a detached HEAD
pointing to a commit c0ffee, RefUpdate dereferences HEAD as
refs/heads/master first and changes refs/heads/master to c0ffee. The
detach argument of RefDatabase#newUpdate avoids this dereference by
faking HEAD as ObjectIdRef.

This faking is problematic for the linking operation of
DfsRefDatabase. It does a compare-and-swap operation on every
reference change because of its distributed systems nature. If a
SymbolicRef is faked as an ObjectRef, it thinks that there is a
racing change in the reference and rejects the update. Because of
this, DFS based repositories cannot change the link target of symbolic
refs. This has not been a problem for file-based repositories because
they have a file-lock based semantics instead of the CAS based one.
The reference implementation, InMemoryRepository, is not affected
because it only compares ObjectIds.

When [1] introduced this faking code, there was no way for RefUpdate
to distinguish the detaching operation. When [2] fixed the detaching
operation, it introduced a detachingSymbolicRef flag. This commit uses
this flag to control whether it needs to dereference the symbolic refs
by calling Ref#getLeaf. The same flag is used in the reflog update
operation.

This commit does not affect any operation that succeeds currently. In
some DFS repository implementations, this fixes a ref linking
operation, which is currently failing.

[1]: 01b5392cdb
[2]: 3a86868c08

Change-Id: I118f85f0414dbfad02250944e28d74dddd59469b
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
2016-08-25 14:20:31 -07:00
Dan Wang 9974f30702 Packet logging for JGit
Imitate the packet tracing feature from C Git v1.7.5-rc0~58^2~1 (add
packet tracing debug code, 2011-02-24).  Unlike C Git, use the log4j
log level setting instead of the GIT_TRACE_PACKET environment variable
to enable tracing.

Tested as follows:

 1. Enable tracing by adding the lines

	log4j.logger.org.eclipse.jgit.transport=DEBUG, stderr
	log4j.additivity.org.eclipse.jgit.transport=false

    to org.eclipse.jgit.pgm/resources/log4j.properties.

 2. mvn package

 3. org.eclipse.jgit.pgm/target/jgit \
	ls-remote git://git.kernel.org/pub/scm/git/git 2>&1 |less

Then the output provides a trace of packets sent and received over
the wire:

  2016-08-24 16:36:42 DEBUG PacketLineOut:145 - git> git-upload-pack /pub/scm/git/git^@host=git.kernel.org^@
  2016-08-24 16:36:42 DEBUG PacketLineIn:165 - git< 2632c897f74b1cc9b5533f467da459b9ec725538 HEAD^@multi_ack thin-pack side-band side-band-64k ofs-delta shallow no-progress include-tag multi_ack_detailed symref=HEAD:refs/heads/master agent=git/2.8.4
  2016-08-24 16:36:42 DEBUG PacketLineIn:165 - git< e0c1ceafc5bece92d35773a75fff59497e1d9bd5 refs/heads/maint

Change-Id: I5028c064f3ac090510386057cb4e6d30d4eae232
Signed-off-by: Dan Wang <dwwang@google.com>
2016-08-24 16:24:43 -07:00
Masaya Suzuki edd8ad4d04 Use FS#lastModified instead of File#lastModified
This fixes the tests failed in JDK8.

FS uses java.nio API to get file attributes. The timestamps obtained
from that API are more precise than the ones from
java.io.File#lastModified() since Java8.

This difference accidentally makes JGit detect newly added files as
smudged. Use the precised timestamp to avoid this false positive.

Bug: 500058
Change-Id: I9e587583c85cb6efa7562ad6c5f26577869a2e7c
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
Signed-off-by: Andrey Loskutov <loskutov@gmx.de>
2016-08-24 09:07:08 +02:00
Christian Halstrick da9eef85e7 Don't check lastModified, length on folders for submodules
The metadata comparison of submodules is not reliable because of the
last modified timestamp and directory length.

Bug: 498759
Change-Id: If5db69ef3868e475ac477d3e8a7750b268799b0c
2016-08-24 09:05:41 +02:00
Masaya Suzuki c4e209b20f Add HTTP status code to ServiceMayNotContinueException
The exception can be thrown in a various reason, and sometimes 403
Forbidden is not appropriate. Make the HTTP status code customizable.

Change-Id: If2ef6f454f7479158a4e28a12909837db483521c
Signed-off-by: Masaya Suzuki <masayasuzuki@google.com>
2016-08-23 18:06:51 -07:00
Shawn Pearce b4192093f1 Merge "Ignore IOException thrown from close" 2016-08-19 19:11:03 -04:00
Masaya Suzuki 108bee17cf Ignore IOException thrown from close
AddCommandTest is flaky because IOException is thrown sometimes.

Caused by: java.io.IOException: Stream closed
        at java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:433)
        at java.io.OutputStream.write(OutputStream.java:116)
        at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
        at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
        at java.io.FilterOutputStream.close(FilterOutputStream.java:158)
        at org.eclipse.jgit.util.FS.runProcess(FS.java:993)
        at org.eclipse.jgit.util.FS.execute(FS.java:1102)
        at org.eclipse.jgit.treewalk.WorkingTreeIterator.filterClean(WorkingTreeIterator.java:470)
        ... 22 more

OpenJDK replaces the underlying OutputStream with NullOutputStream when
the process exits. This throws IOException for all write operation. When
it exits before JGit writes the input to the pipe buffer, the input
stays in BufferedOutputStream. The close method tries to write it again,
and IOException is thrown.

Since we ignore IOException in StreamGobbler, we also ignore it when
we close the stream.

Fixes Bug 499633.

Change-Id: I30c7ac78e05b00bd0152f697848f4d17d53efd17
Signed-off-by: Masaya Suzuki <draftcode@gmail.com>
2016-08-19 14:09:17 -07:00
Shawn Pearce f15e9c088a DfsObjDatabase: clear PackList dirty bit if no new packs
If a reference was updated more recently than a pack was written
(typical) the PackList was perpetually dirty until the next GC
was completed for the repository.

Detect this condition by observing no changes to the PackList
membership and resetting the dirty bit.

Change-Id: Ie2133aca1f8083307c73b6a26358175864f100ef
2016-08-19 12:06:03 -07:00
Matthias Sohn 13f0db25f2 Enhance ResetCommand to allow disabling reflog update
This will be used by EGit for implementing commit amend in the staging
view (see Idcd1efeeee8b3065bae36e285bfc0af24ab1e88f).

Change-Id: Ice9ebbb1c0c3314c679f4db40cdd3664f61c27c3
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-08-17 08:56:03 -04:00
Jonathan Nieder ca2bf6fc18 Merge "BaseReceivePack: null and IllegalStateException cases for getPushOptions" 2016-08-15 15:40:51 -04:00
Dan Wang a6c0d829b9 BaseReceivePack: null and IllegalStateException cases for getPushOptions
Change-Id: I5c6790719991931d615d821c900bfd90a20e540b
Signed-off-by: Dan Wang <dwwang@google.com>
2016-08-10 13:52:33 -07:00
Jonathan Nieder a9b87de970 RepoCommand: Avoid group lists shadowing groups strings
Reported-by: David Pursehouse <david.pursehouse@gmail.com>
Change-Id: I9e9b021d335bda4d58b6bcc30f59b81ac5b37724
Signed-off-by: Jonathan Nieder <jrn@google.com>
2016-08-08 18:51:32 -07:00
David Pursehouse 300787b8cf PackWriter: Fix Javadoc tag for thrown exception in preparePack
Use @throws instead of @param

Change-Id: Ic9419d254c617e60a9b10e49205b11069442eb27
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
2016-08-09 10:27:35 +09:00
Jonathan Nieder 22f24e7df2 Merge "Document new PackWriter#preparePack variant's parameters and exceptions" 2016-08-08 19:55:59 -04:00
Jonathan Nieder f28de24fa8 Document new PackWriter#preparePack variant's parameters and exceptions
Change-Id: Id4fa272c611a855bf4ef1bf5399f3e4305664103
2016-08-08 16:38:21 -07:00
Matthias Sohn ae779f60b7 Add missing @since tags for new API
Change-Id: I8db29a0313fbc476152cef47f2eaa76954f1e280
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-08-09 00:45:30 +02:00
Matthias Sohn d63eb16a1e Merge "Require-Bundle com.jcraft.jsch replaced by Import-Package statement" 2016-08-08 18:43:56 -04:00
Jens Offenbach e2cb2f8afd Require-Bundle com.jcraft.jsch replaced by Import-Package statement
Bug: 359288
Change-Id: Ifbbf953f5389c6bd3ba960b598c0e92656b522e3
Signed-off-by: Jens Offenbach <wolle5050@gmx.de>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
2016-08-09 00:10:18 +02:00
Jonathan Nieder 3b0b7677ff Merge changes Ib0d8c294,Idfb83482
* changes:
  Shallow fetch: Pass along "shallow"s in unparsed-wants case, too
  Shallow fetch: Pass a DepthWalk to PackWriter

Change-Id: I7d1c3b4d0b7ebc254b53404d1618522b0174ac23
2016-08-08 13:50:57 -07:00
Jonathan Nieder b16e207742 Shallow fetch: Pass along "shallow"s in unparsed-wants case, too
Since 84d2738ff2 (Don't skip want validation when the client sends no
haves, 2013-06-21), this branch is not taken.  Process the
"shallow"s anyway as a defensive measure in case the code path gets
revived.

Change-Id: Idfb834825d77f51e17191c1635c9d78c78738cfd
Signed-off-by: Jonathan Nieder <jrn@google.com>
2016-08-08 16:49:37 -04:00
Jonathan Nieder f84370feaa Shallow fetch: Pass a DepthWalk to PackWriter
d385a7a5e5 (Shallow fetch: Respect "shallow" lines, 2016-08-03) forgot
that UploadPack wasn't passing a DepthWalk to PackWriter in the first
place.  As a result, shallow clones fail:

  java.lang.IllegalArgumentException: Shallow packs require a DepthWalk
        at org.eclipse.jgit.internal.storage.pack.PackWriter.preparePack(PackWriter.java:756)
        at org.eclipse.jgit.transport.UploadPack.sendPack(UploadPack.java:1497)
        at org.eclipse.jgit.transport.UploadPack.sendPack(UploadPack.java:1381)
        at org.eclipse.jgit.transport.UploadPack.service(UploadPack.java:774)
        at org.eclipse.jgit.transport.UploadPack.upload(UploadPack.java:667)
        at org.eclipse.jgit.http.server.UploadPackServlet.doPost(UploadPackServlet.java:191)

Change-Id: Ib0d8c2946eebfea910a2b767fb92e23da15d4749
2016-08-08 16:48:29 -04:00
Christian Halstrick 2c5c035e62 Merge "Skip cleaning inner repositories by default in CleanCommand" 2016-08-07 09:37:48 -04:00
Terry Parker e426aa8b90 Shallow fetch/clone: Make --depth mean the total history depth
cgit changed the --depth parameter to mean the total depth of history
rather than the depth of ancestors to be returned [1]. JGit still uses
the latter meaning, so update it to match cgit.

depth=0 still means a non-shallow clone. depth=1 now means only the
wants rather than the wants and their direct parents.

This is accomplished by changing the semantic meaning of "depth" in
UploadPack and PackWriter to mean the total depth of history desired,
while keeping "depth" in DepthWalk.{RevWalk,ObjectWalk} to mean
the depth of traversal. Thus UploadPack and PackWriter always
initialize their DepthWalks with "depth-1".

[1] upload-pack: fix off-by-one depth calculation in shallow clone
https://code.googlesource.com/git/+/682c7d2f1a2d1a5443777237450505738af2ff1a

Change-Id: I87ed3c0f56c37e3491e367a41f5e555c4207ff44
Signed-off-by: Terry Parker <tparker@google.com>
2016-08-05 17:27:30 -07:00