|
3b2153fe
|
2020-04-05T14:42:44
|
|
commit: use GIT_ASSERT
|
|
5e1b6eaf
|
2020-01-15T12:58:59
|
|
Make type mismatch errors consistent
|
|
718f24ad
|
2019-10-30T20:39:03
|
|
commit: verify objects exist in git_commit_with_signature
There can be a significant difference between the system where we created the
buffer (if at all) and when the caller provides us with the contents of a
commit.
Verify that the commit we are being asked to create references objects which do
exist in the target repository.
|
|
f04a58b0
|
2019-10-03T12:55:48
|
|
Merge pull request #4445 from tiennou/shallow/dry-commit-parsing
DRY commit parsing
|
|
1c847a6a
|
2018-10-25T19:40:19
|
|
commit: generic parse mechanism
This allows us to pick which data from a commit we're interested in.
This will be used by the revwalk code, which is only interested in
parents' and committer data.
|
|
998f9c15
|
2019-08-07T07:21:27
|
|
fixup: strange indentation
|
|
|
75947105
|
2019-07-02T09:53:49
|
|
commit: git_commit_create_with_signature should support null signature
If provided with a null signature, skip adding the signature header and create the commit anyway.
|
|
|
f673e232
|
2018-12-27T13:47:34
|
|
git_error: use new names in internal APIs and usage
Move to the `git_error` name in the internal API for error-related
functions.
|
|
|
168fe39b
|
2018-11-28T14:26:57
|
|
object_type: use new enumeration names
Use the new object_type enumeration names within the codebase.
|
|
|
cb23c3ef
|
2018-11-21T10:54:29
|
|
commit: fix out-of-bound reads when parsing truncated author fields
While commit objects usually should have only one author field, our commit
parser actually handles the case where a commit has multiple author fields
because some tools that exist in the wild actually write them. Detection of
those additional author fields is done by using a simple `git__prefixcmp`,
checking whether the current line starts with the string "author ". In case
where we are handed a non-NUL-terminated string that ends directly after the
space, though, we may have an out-of-bounds read of one byte when trying to
compare the expected final NUL byte.
Fix the issue by using `git__prefixncmp` instead of `git_prefixcmp`.
Unfortunately, a test cannot be easily written to catch this case. While we
could test the last error message and verify that it didn't in fact fail parsing
a signature (because that would indicate that it has in fact tried to parse the
additional "author " field, which it shouldn't be able to detect in the first
place), this doesn't work as the next line needs to be the "committer" field,
which would error out with the same error message even if we hadn't done an
out-of-bounds read.
As objects read from the object database are always NUL terminated, this issue
cannot be triggered in normal code and thus it's not security critical.
|
|
|
7655b2d8
|
2018-10-19T10:29:19
|
|
commit: fix reading out of bounds when parsing encoding
The commit message encoding is currently being parsed by the
`git__prefixcmp` function. As this function does not accept a buffer
length, it will happily skip over a buffer's end if it is not `NUL`
terminated.
Fix the issue by using `git__prefixncmp` instead. Add a test that
verifies that we are unable to parse the encoding field if it's cut off
by the supplied buffer length.
|
|
|
ab265a35
|
2017-10-13T13:11:59
|
|
commit: implement function to parse raw data
Currently, parsing objects is strictly tied to having an ODB object
available. This makes it hard to parse an object when all that is
available is its raw object and size. Furthermore, hacking around that
limitation by directly creating an ODB structure either on stack or on
heap does not really work that well due to ODB objects being reference
counted and then automatically free'd when reaching a reference count of
zero.
Implement a function `git_commit__parse_raw` to parse a commit object
from a pair of `data` and `size`.
|
|
56303e1a
|
2018-05-07T11:59:00
|
|
mailmap: API and style cleanup
|
|
|
e3dcaca5
|
2018-03-17T18:15:01
|
|
mailmap: Integrate mailmaps with blame and signatures
|
|
|
ecf4f33a
|
2018-02-08T11:14:48
|
|
Convert usage of `git_buf_free` to new `git_buf_dispose`
|
|
|
0c7f49dd
|
2017-06-30T13:39:01
|
|
Make sure to always include "common.h" first
Next to including several files, our "common.h" header also declares
various macros which are then used throughout the project. As such, we
have to make sure to always include this file first in all
implementation files. Otherwise, we might encounter problems or even
silent behavioural differences due to macros or defines not being
defined as they should be. So in fact, our header and implementation
files should make sure to always include "common.h" first.
This commit does so by establishing a common include pattern. Header
files inside of "src" will now always include "common.h" as its first
other file, separated by a newline from all the other includes to make
it stand out as special. There are two cases for the implementation
files. If they do have a matching header file, they will always include
this one first, leading to "common.h" being transitively included as
first file. If they do not have a matching header file, they instead
include "common.h" as first file themselves.
This fixes the outlined problems and will become our standard practice
for header and source files inside of the "src/" from now on.
|
|
52d03f37
|
2017-03-03T13:26:29
|
|
git_commit_create: freshen tree objects in commit
Freshen the tree object that a commit points to during commit time.
|
|
|
ade0d9c6
|
2017-02-13T13:46:17
|
|
commit: avoid possible use-after-free
When extracting a commit's signature, we first free the object and only
afterwards put its signature contents into the result buffer. This works
in most cases - the free'd object will normally be cached anyway, so we
only end up decrementing its reference count without actually freeing
its contents. But in some more exotic setups, where caching is disabled,
this can definitly be a problem, as we might be the only instance
currently holding a reference to this object.
Fix this issue by first extracting the contents and freeing the object
afterwards only.
|
|
|
dc851d9e
|
2017-02-13T13:42:16
|
|
commit: clear user-provided buffers
The functions `git_commit_header_field` and
`git_commit_extract_signature` both receive buffers used to hand back
the results to the user. While these functions called `git_buf_sanitize`
on these buffers, this is not the right thing to do, as it will simply
initialize or zero-terminate passed buffers. As we want to overwrite
contents, we instead have to call `git_buf_clear` to completely reset
them.
|
|
|
909d5494
|
2016-12-29T12:25:15
|
|
giterr_set: consistent error messages
Error messages should be sentence fragments, and therefore:
1. Should not begin with a capital letter,
2. Should not conclude with punctuation, and
3. Should not end a sentence and begin a new one
|
|
|
a719ef5e
|
2016-10-07T09:31:41
|
|
commit: always initialize commit message
When parsing a commit, we will treat all bytes left after parsing
the headers as the commit message. When no bytes are left, we
leave the commit's message uninitialized. While uncommon to have
a commit without message, this is the right behavior as Git
unfortunately allows for empty commit messages.
Given that this scenario is so uncommon, most programs acting on
the commit message will never check if the message is actually
set, which may lead to errors. To work around the error and not
lay the burden of checking for empty commit messages to the
developer, initialize the commit message with an empty string
when no commit message is given.
|
|
|
0d77a56f
|
2016-05-26T12:28:32
|
|
checkout: drop unused repo
|
|
225cb880
|
2016-04-26T08:09:04
|
|
Fix `git_commit_create` for an initial commit
When calling `git_commit_create` with an empty array of `parents` and `parent_count == 0`
the call will segfault at https://github.com/libgit2/libgit2/blob/master/src/commit.c#L107
when it's trying to compare `current_id` to a null parent oid.
This just puts in a check to stop that segfault.
|
|
|
f0224772
|
2016-02-17T18:04:19
|
|
git_object_dup: introduce typesafe versions
|
|
|
ba349322
|
2016-03-17T06:57:56
|
|
Merge pull request #3673 from libgit2/cmn/commit-with-signature
commit: add function to attach a signature to a commit
|
|
|
bf804d40
|
2016-03-17T10:45:22
|
|
commit: fix extraction of single-line signatures
The function to extract signatures suffers from a similar bug to the
header field finding one by having an unecessary line feed check as a
break condition of its loop.
Fix that and add a test for this single-line signature situation.
|
|
02d61a3b
|
2016-03-10T10:53:20
|
|
commit: add function to attach a signature to a commit
In combination with the function which creates a commit into a buffer,
this allows us to more easily create signed commits.
|
|
|
47cb42da
|
2016-03-03T22:56:02
|
|
commit: split creating the commit and writing it out
Sometimes you want to create a commit but not write it out to the
objectdb immediately. For these cases, provide a new function to
retrieve the buffer instead of having to go through the db.
|
|
|
ef63bab3
|
2016-02-23T13:34:35
|
|
git_commit: validate tree and parent ids
When `GIT_OPT_ENABLE_STRICT_OBJECT_CREATION` is turned on, validate
the tree and parent ids given to commit creation functions.
|
|
|
eadd0f05
|
2016-02-16T14:06:48
|
|
commit: expose the different kinds of errors
We should be checking whether the object we're looking up is a commit,
and we should let the caller know whether the not-found return code
comes from a bad object type or just a missing signature.
|
|
|
460ae11f
|
2016-02-11T22:19:20
|
|
commit: don't forget the last header field
When we moved the logic to handle the first one, wrong loop logic was
kept in place which meant we still finished early. But we now notice it
because we're not reading past the last LF we find.
This was not noticed before as the last field in the tested commit was
multi-line which does not trigger the early break.
|
|
488e2b85
|
2016-02-09T16:26:58
|
|
Merge pull request #3599 from libgit2/gpgsign
Introduce git_commit_extract_signature
|
|
|
a65afb75
|
2016-02-08T18:51:13
|
|
Introduce git_commit_extract_signature
This returns the GPG signature for a commit and its contents without the
signature block, allowing for the verification of the commit's
signature.
|
|
|
f55eca16
|
2016-02-09T07:17:26
|
|
commit: also match the first header field when searching
We were searching only past the first header field, which meant we were
unable to find e.g. `tree` which is the first field.
While here, make sure to set an error message in case we cannot find the
field.
|
|
|
7f8fe1d4
|
2015-12-01T10:03:56
|
|
commit: introduce `git_commit_body`
It is already possible to get a commit's summary with the
`git_commit_summary` function. It is not possible to get the
remaining part of the commit message, that is the commit
message's body.
Fix this by introducing a new function `git_commit_body`.
|
|
f5f96a23
|
2015-10-09T10:41:06
|
|
Fix git_commit_summary to convert newlines to spaces even after
whitespace. Collapse spaces around newlines for the summary.
|
|
|
a3f42fe8
|
2015-06-22T15:32:29
|
|
commit: allow retrieving an arbitrary header field
This allows the user to look up fields which we don't parse in libgit2,
and allows them to access gpgsig or mergetag fields if they wish to
check the signature.
|
|
|
65d69fe8
|
2015-06-11T08:24:58
|
|
commit: ignore multiple author fields
Some tools create multiple author fields. git is rather lax when parsing
them, although fsck does complain about them. This means that they exist
in the wild.
As it's not too taxing to check for them, and there shouldn't be a
noticeable slowdown when dealing with correct commits, add logic to skip
over these extra fields when parsing the commit.
|
|
|
659cf202
|
2015-01-07T12:23:05
|
|
Remove the signature from ref-modifying functions
The signature for the reflog is not something which changes
dynamically. Almost all uses will be NULL, since we want for the
repository's default identity to be used, making it noise.
In order to allow for changing the identity, we instead provide
git_repository_set_ident() and git_repository_ident() which allow a user
to override the choice of signature.
|
|
c8e02b87
|
2015-02-15T21:07:05
|
|
Remove extra semicolon outside of a function
Without this change, compiling with gcc and pedantic generates warning:
ISO C does not allow extra ‘;’ outside of a function.
|
|
|
a612a25f
|
2014-07-18T18:22:54
|
|
git_rebase_commit: write HEAD's reflog appropriately
|
|
|
217c029b
|
2014-04-09T14:08:22
|
|
commit: safer commit creation with reference update
The current version of the commit creation and amend function are unsafe
to use when passing the update_ref parameter, as they do not check that
the reference at the moment of update points to what the user expects.
Make sure that we're moving history forward when we ask the library to
update the reference for us by checking that the first parent of the new
commit is the current value of the reference. We also make sure that the
ref we're updating hasn't moved between the read and the write.
Similarly, when amending a commit, make sure that the current tip of the
branch is the commit we're amending.
|
|
|
7c1ee212
|
2014-03-07T15:17:08
|
|
commit: simplify and correct refcounting in nth_gen_ancestor
We can make use of git_object_dup to use refcounting instead of pointer
comparison to make sure we don't free the caller's object.
This also lets us simplify the case for '~0' which is now just an
assignment instead of looking up the object we have at hand.
|
|
4f46a98b
|
2014-02-24T23:32:25
|
|
Remove now-duplicated stdarg.h include
|
|
80c29fe9
|
2014-01-17T10:45:11
|
|
Add git_commit_amend API
This adds an API to amend an existing commit, basically a shorthand
for creating a new commit filling in missing parameters from the
values of an existing commit. As part of this, I also added a new
"sys" API to create a commit using a callback to get the parents.
This allowed me to rewrite all the other commit creation APIs so
that temporary allocations are no longer needed.
|
|
0de2c4e3
|
2014-02-05T13:15:57
|
|
Merge remote-tracking branch 'libgit2/development' into bs/more-reflog-stuff
|
|
|
a6563619
|
2014-02-05T13:01:54
|
|
commit: faster parsing
The current code issues a lot of strncmp() calls in order to check for
the end of the header, simply in order to copy it and start going
through it again. These are a lot of calls for something we can check as
we go along. Knowing the amount of parents beforehand to reduce
allocations in extreme cases does not make up for them.
Instead start parsing immediately and check for the double-newline after
each header field, leaving the raw_header allocation for the end, which
lets us go through the header once and reduces the amount of strncmp()
calls significantly.
In unscientific testing, this has reduced a shortlog-like usage (walking
though the whole history of a branch and extracting data from the
commits) of git.git from ~830ms to ~700ms and makes the time we spend in
strncmp() negligible.
|
|
|
0adb0606
|
2014-02-04T15:32:57
|
|
Fix reflog message when creating commits
|
|
|
47e28349
|
2014-01-24T12:01:34
|
|
commit: remvoe legacy 'oid' naming
|
|
|
238e8149
|
2014-01-22T14:41:04
|
|
Summarize empty messages
|
|
|
0b28217b
|
2014-01-15T12:51:31
|
|
refs: remove the _with_log differentiation
Any well-behaved program should write a descriptive message to the
reflog whenever it updates a reference. Let's make this more prominent
by removing the version without the reflog parameters.
|
|
be0a1a79
|
2013-12-08T02:03:05
|
|
commit: Fix potential segfault in git_commit_message
Dereferencing commit pointer before asserting
|
|
|
300d192f
|
2013-12-02T11:15:27
|
|
Introduce git_revert to revert a single commit
|
|
598f069b
|
2013-10-02T12:42:41
|
|
commit: Introduce git_commit_message_raw()
|
|
|
d27a441d
|
2013-09-30T11:30:28
|
|
commit: Trim message leading newlines
Fix libgit2/libgit2sharp#522
|
|
|
584f2d30
|
2013-07-11T11:04:42
|
|
Fix warnings on Win64
|
|
|
9abc78ae
|
2013-07-07T21:56:11
|
|
Convert commit->parent_ids to git_array_t
This converts the array of parent SHAs from a git_vector where
each SHA has to be separately allocated to a git_array_t where
all the SHAs can be kept in one block. Since the two collections
have almost identical APIs, there isn't much involved in making
the change. I did add an API to git_array_t so that it could be
allocated at a precise initial size.
|
|
|
f094f905
|
2013-07-01T15:41:01
|
|
Add raw header access to commit API
|
|
|
58206c9a
|
2013-05-16T10:38:27
|
|
Add cat-file example and increase const use in API
This adds an example implementation that emulates git cat-file.
It is a convenient and relatively simple example of getting data
out of a repository.
Implementing this also revealed that there are a number of APIs
that are still not using const pointers to objects that really
ought to be. The main cause of this is that `git_vector_bsearch`
may need to call `git_vector_sort` before doing the search, so a
const pointer to the vector is not allowed. However, for tree
objects, with a little care, we can ensure that the vector of
tree entries is always sorted and allow lookups to take a const
pointer. Also, the missing const in commit objects just looks
like an oversight.
|
|
e583334c
|
2013-05-10T21:42:22
|
|
Fix broken build when MSVC SDL checks is enabled
|
|
|
467cbec7
|
2013-05-05T16:48:34
|
|
commit: make create_from_oids() accept plain oid
|
|
|
ce72e399
|
2013-05-05T16:45:38
|
|
commit: guard create() against not owned trees
|
|
|
3f27127d
|
2013-04-16T11:51:02
|
|
Simplify object table parse functions
This unifies the object parse functions into one signature that
takes an odb_object.
|
|
|
78606263
|
2013-04-15T00:05:44
|
|
Add callback to git_objects_table
This adds create and free callback to the git_objects_table so
that more of the creation and destruction of objects can be table
driven instead of using switch statements. This also makes the
semantics of certain object creation functions consistent so that
we can make better use of function pointers. This also fixes a
theoretical error case where an object allocation fails and we
end up storing NULL into the cache.
|
|
|
badd85a6
|
2013-04-10T17:10:17
|
|
Use git_odb_object_data/_size whereever possible
This uses the odb object accessors so we can change the internals
more easily...
|
|
8842c75f
|
2013-04-03T22:30:07
|
|
What has science done.
|
|
|
9233b3de
|
2013-04-19T13:17:29
|
|
Move git_commit_create_from_oids into sys/commit.h
Actually this renames git_commit_create_oid to
git_commit_create_from_oids and moves the API declaration to
include/git2/sys/commit.h since it is a dangerous API for general
use (because it doesn't check that the OID list items actually
refer to real objects).
|
|
92550398
|
2013-01-29T09:53:23
|
|
Added git_commit_create_oid
|
|
|
0efae3b2
|
2013-04-15T12:24:08
|
|
commit: correctly detect the start of the commit message
The end of the header is signaled by to consecutive LFs and the commit
message starts immediately after. Jumping over LFs at the start of the
message is a bug and leads to creating different commits if
when rebuilding history.
This also fixes an empty commit message being returned as "\n".
|
|
10c06114
|
2013-03-17T04:46:46
|
|
Several warnings detected by static code analyzer fixed
Implicit type conversion argument of function to size_t type
Suspicious sequence of types castings: size_t -> int -> size_t
Consider reviewing the expression of the 'A = B == C' kind. The expression is calculated as following: 'A = (B == C)'
Unsigned type is never < 0
|
|
|
d00d5464
|
2013-03-01T15:37:33
|
|
immutable references and a pluggable ref database
|
|
11d9f6b3
|
2013-01-27T14:17:07
|
|
Vector improvements and their fallout
|
|
|
d47c6aab
|
2013-01-20T04:20:09
|
|
commit: don't include the LF in the header field value
When the encoding header changed to be treated as an additional
header, the EOL pointer started to point to the byte after the LF,
making the git__strndup call copy the LF into the value.
Increase the EOL pointer value after copying the data to keep the rest
of the semantics but avoid copying LF.
|
|
|
291090a0
|
2013-01-17T13:19:09
|
|
Add skipping of unknown commit headers
This moves the check for the "encoding" header into a loop which
is just scanning for non-required headers at the end of a commit
header. That loop will skip unrecognized lines (including header
continuation lines) until a terminating completely blank line is
found, and only then does it move to reading the commit message.
|
|
|
359fc2d2
|
2013-01-08T17:07:25
|
|
update copyrights
|
|
|
de70aea6
|
2012-12-03T12:41:50
|
|
Remove GIT_SIGNATURE_VERSION and friends
|
|
|
c7231c45
|
2012-11-30T16:31:42
|
|
Deploy GITERR_CHECK_VERSION
|
|
|
4ec197f3
|
2012-11-30T12:52:42
|
|
Deploy GIT_SIGNATURE_INIT
|
|
|
cfbe4be3
|
2012-11-17T19:54:47
|
|
More external API cleanup
Conflicts:
src/branch.c
tests-clar/refs/branches/create.c
|
|
|
b8457baa
|
2012-07-24T07:57:58
|
|
portability: Improve x86/amd64 compatibility
|
|
|
b1aca6ea
|
2012-07-11T16:14:12
|
|
commit: introduce git_commit_nth_gen_ancestor()
|
|
|
2b92a154
|
2012-07-11T11:20:20
|
|
commit: reduce code duplication
|
|
e00b56eb
|
2012-06-15T10:15:57
|
|
Fix broken tests caused by no longer prettifying by default
|
|
|
e4031cb5
|
2012-06-15T09:26:56
|
|
Kill message_prettify - we will export instead
|
|
|
bc2deed0
|
2012-06-15T09:13:59
|
|
Don't strip comments (#) from commit messages by default
|
|
|
edebceff
|
2012-05-01T13:57:45
|
|
Add git_reset()
Currently supports Soft and Mixed modes.
|
|
54db1a18
|
2012-05-19T13:20:55
|
|
Cleanup
* indexer: remove leftover printf
* commit: remove unused macros COMMIT_BASIC_PARSE, COMMIT_FULL_PARSE
and COMMIT_PRINT
|
|
|
904b67e6
|
2012-05-18T01:48:50
|
|
errors: Rename error codes
|
|
|
e172cf08
|
2012-05-18T01:21:06
|
|
errors: Rename the generic return codes
|
|
|
458b9450
|
2012-03-01T17:03:32
|
|
commit/tag: ensure the message is cleaned up
'git commit' and 'git tag -a' enforce some conventions, like cleaning up excess whitespace and making sure that the last line ends with a '\n'. This fix replicates this behavior.
Fix libgit2/libgit2sharp#117
|
|
3aa351ea
|
2012-04-26T15:05:07
|
|
error handling: move the missing parts over to the new error handling
|
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d4d648b0
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2012-04-11T15:25:34
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Fix compilation errors and warnings
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73fe6a8e
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2012-03-28T18:59:12
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error-handling: Commit (WIP)
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cb8a7961
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2012-03-07T00:02:55
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error-handling: Repository
This also includes droping `git_buf_lasterror` because it makes no sense
in the new system. Note that in most of the places were it has been
dropped, the code needs cleanup. I.e. GIT_ENOMEM is going away, so
instead it should return a generic `-1` and obviously not throw
anything.
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b4b79ac3
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2012-02-15T00:12:53
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commit: actually allow yet to be born update_ref
git_commit_create is supposed to update the given reference
"update_ref", but segfaulted in case of a yet to be born
reference. Fix it.
Signed-off-by: schu <schu-github@schulog.org>
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5e0de328
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2012-02-13T17:10:24
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Update Copyright header
Signed-off-by: schu <schu-github@schulog.org>
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97769280
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2011-11-30T11:27:15
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Use git_buf for path storage instead of stack-based buffers
This converts virtually all of the places that allocate GIT_PATH_MAX
buffers on the stack for manipulating paths to use git_buf objects
instead. The patch is pretty careful not to touch the public API
for libgit2, so there are a few places that still use GIT_PATH_MAX.
This extends and changes some details of the git_buf implementation
to add a couple of extra functions and to make error handling easier.
This includes serious alterations to all the path.c functions, and
several of the fileops.c ones, too. Also, there are a number of new
functions that parallel existing ones except that use a git_buf
instead of a stack-based buffer (such as git_config_find_global_r
that exists alongsize git_config_find_global).
This also modifies the win32 version of p_realpath to allocate whatever
buffer size is needed to accommodate the realpath instead of hardcoding
a GIT_PATH_MAX limit, but that change needs to be tested still.
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9462c471
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2011-11-25T08:16:26
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repository: Change ownership semantics
The ownership semantics have been changed all over the library to be
consistent. There are no more "borrowed" or duplicated references.
Main changes:
- `git_repository_open2` and `3` have been dropped.
- Added setters and getters to hotswap all the repository owned
objects:
`git_repository_index`
`git_repository_set_index`
`git_repository_odb`
`git_repository_set_odb`
`git_repository_config`
`git_repository_set_config`
`git_repository_workdir`
`git_repository_set_workdir`
Now working directories/index files/ODBs and so on can be
hot-swapped after creating a repository and between operations.
- All these objects now have proper ownership semantics with
refcounting: they all require freeing after they are no longer
needed (the repository always keeps its internal reference).
- Repository open and initialization has been updated to keep in
mind the configuration files. Bare repositories are now always
detected, and a default config file is created on init.
- All the tests affected by these changes have been dropped from the
old test suite and ported to the new one.
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75abd2b9
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2011-08-11T19:38:13
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Free all used references in the source tree
Since references are not owned by the repository anymore we have to free
them manually now.
Signed-off-by: schu <schu-github@schulog.org>
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a46ec457
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2011-08-10T16:19:42
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refs: split internal and external references
Currently libgit2 shares pointers to its internal reference cache with
the user. This leads to several problems like invalidation of reference
pointers when reordering the cache or manipulation of the cache from
user side.
Give each user its own git_reference instead of leaking the internal
representation (struct reference).
Add the following new API functions:
* git_reference_free
* git_reference_is_packed
Signed-off-by: schu <schu-github@schulog.org>
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