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3bc3d797
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2014-03-31T15:15:32
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No need to find merge base.
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892aa808
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2014-03-10T12:00:33
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Callback to hide commits in revision walker.
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704b55cc
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2014-03-20T20:24:11
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revwalk: don't try to find merge bases when there can be none
As a way to speed up the cases where we need to hide some commits, we
find out what the merge bases are so we know to stop marking commits as
uninteresting and avoid walking down a potentially very large amount of
commits which we will never see. There are however two oversights in
current code.
The merge-base finding algorithm fails to recognize that if it is only
given one commit, there can be no merge base. It instead walks down the
whole ancestor chain needlessly. Make it return an empty list
immediately in this situation.
The revwalk does not know whether the user has asked to hide any commits
at all. In situation where the user pushes multiple commits but doesn't
hide any, the above fix wouldn't do the trick. Keep track of whether the
user wants to hide any commits and only run the merge-base finding
algorithm when it's needed.
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15f7b9b8
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2013-09-08T00:52:26
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revwalk: allow simplifying by first-parent
When enabled, only the first parent of each commit will be queued,
enabling a simple way of using first-parent simplification.
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359fc2d2
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2013-01-08T17:07:25
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update copyrights
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d5e44d84
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2012-11-29T17:02:27
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Fix function name and add real error check
`revwalk.h:commit_lookup()` -> `git_revwalk__commit_lookup()`
and make `git_commit_list_parse()` do real error checking that
the item in the list is an actual commit object. Also fixed an
apparent typo in a test name.
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4ff192d3
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2012-11-26T19:47:47
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Move merge functions to merge.c
In so doing, promote commit_list to git_commit_list,
with its own internal API header.
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b5c5f0f8
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2011-03-16T23:59:09
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Fix headers for the new Revision Walker
The "oid.h" header is now included instead of "object.h".
The old "revwalk.h" header has been removed; it was empty.
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71db842f
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2011-03-08T14:57:03
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Rewrite the Revision Walker
The new revision walker uses an internal Commit object storage system,
custom memory allocator and much improved topological and time sorting
algorithms. It's about 20x times faster than the previous implementation
when browsing big repositories.
The following external API calls have changed:
`git_revwalk_next` returns an OID instead of a full commit object.
The initial call to `git_revwalk_next` is no longer blocking when
iterating through a repo with a time-sorting mode.
Iterating with Topological or inverted modes still makes the initial
call blocking to preprocess the commit list, but this block should be
mostly unnoticeable on most repositories (topological preprocessing
times at 0.3s on the git.git repo).
`git_revwalk_push` and `git_revwalk_hide` now take an OID instead
of a full commit object.
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44908fe7
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2010-12-06T23:03:16
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Change the library include file
Libgit2 is now officially include as
#include "<git2.h>"
or indidividual files may be included as
#include <git2/index.h>
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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3315782c
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2010-08-08T14:12:17
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Redesigned the walking/object lookup interface
The old 'git_revpool' object has been removed and
split into two distinct objects with separate
functionality, in order to have separate methods for
object management and object walking.
* A new object 'git_repository' does the high-level
management of a repository's objects (commits, trees,
tags, etc) on top of a 'git_odb'.
Eventually, it will also manage other repository
attributes (e.g. tag resolution, references, etc).
See: src/git/repository.h
* A new external method
'git_repository_lookup(repo, oid, type)'
has been added to the 'git_repository' API.
All object lookups (git_XXX_lookup()) are now
wrappers to this method, and duplicated code
has been removed. The method does automatic type
checking and returns a generic 'git_revpool_object'
that can be cast to any specific object.
See: src/git/repository.h
* The external methods for object parsing of repository
objects (git_XXX_parse()) have been removed.
Loading objects from the repository is now managed
through the 'lookup' functions. These objects are
loaded with minimal information, and the relevant
parsing is done automatically when the user requests
any of the parsed attributes through accessor methods.
An attribute has been added to 'git_repository' in
order to force the parsing of all the repository objects
immediately after lookup.
See: src/git/commit.h
See: src/git/tag.h
See: src/git/tree.h
* The previous walking functionality of the revpool
is now found in 'git_revwalk', which does the actual
revision walking on a repository; the attributes
when walking through commits in a database have been
decoupled from the actual commit objects.
This increases performance when accessing commits
during the walk and allows to have several
'git_revwalk' instances working at the same time on
top of the same repository, without having to load
commits in memory several times.
See: src/git/revwalk.h
* The old 'git_revpool_table' has been renamed to
'git_hashtable' and now works as a generic hashtable
with support for any kind of object and custom hash
functions.
See: src/hashtable.h
* All the relevant unit tests have been updated, renamed
and grouped accordingly.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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40721f6b
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2010-07-10T11:50:16
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Changed revpool's object table to support arbitrary objects
git_revpool_object now has a type identifier for each object
type in a revpool (commits, trees, blobs, etc).
Trees can now be stored in the revision pool.
git_revpool_tableit now supports filtering objects by their
type when iterating through the object table.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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4e0d6d86
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2010-06-01T19:30:29
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msvc: Fix an "conversion, loss of data" compiler warning
In particular, the compiler issues the following warning:
src/revwalk.c(61) : warning C4244: '=' : conversion from \
'unsigned int' to 'unsigned char', possible loss of data
In order to suppress the warning, we change the type of the
sorting "enum" field of the git_revpool structure to be consistent
with the sort_mode parameter of the gitrp_sorting() function.
Note that if the size of the git_revpool structure is an issue,
then we could change the type of the sort_mode parameter instead.
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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6bb7aa13
|
2010-05-28T01:48:59
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Added new error codes. Improved error handling.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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9b3577ed
|
2010-05-28T00:23:43
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Fixed brace placement and converted spaces to tabs.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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e5d1faef
|
2010-05-25T19:48:13
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Add external API for revision sorting.
The GIT_RPSORT_XXX flags have been moved to the external API,
and a new method 'gitrp_sorting(...)' has been added to safely
change the sorting method of a revision pool.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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8add0153
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2010-05-21T02:35:40
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Split git_commit_lookup into separate functions.
git_commit_lookup() now creates commit references
without loading them from the ODB.
git_commit_parse() creates a commit reference, loads
it and parses it from the ODB.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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08d5d000
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2010-05-18T20:55:19
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Add commit parents to parsed commits and commit lists to the revpool.
Basic support for iterating the revpool.
The following functions of the revwalk API have been partially
implemented:
void gitrp_reset(git_revpool *pool);
void gitrp_push(git_revpool *pool, git_commit *commit);
void gitrp_prepare_walk(git_revpool *pool);
git_commit *gitrp_next(git_revpool *pool);
Parsed commits' parents are now also parsed and stored in a
"git_commit_list" structure (linked list).
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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36b7cdb6
|
2010-05-22T18:15:42
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|
Changed 'git_commit_list' from a linked list to a doubly-linked list.
Changed 'git_commit' to use bit fields instead of flags.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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1a895dd7
|
2010-05-22T14:32:59
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Add arbritrary ordering revision walking.
The 'gitrp_next()' method now correctly does a revision walking
of all the pushed revisions in arbritary ordering.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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5e15176d
|
2010-05-23T02:39:57
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Add commit caching on the commit table.
Properly initialize the pending commits list.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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d7467949
|
2008-12-30T21:50:10
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|
Remove unnecessary import of stdlib.h from revwalk.h
OS headers are best imported from a more central location anyway.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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c215be41
|
2008-11-22T14:57:40
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|
Rename git_revpool_* functions gitrp_*
Otherwise their prototypes don't match their declarations.
Detected by 'sparse', which is obviously good to run
before each commit.
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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