|
d4cff0cb
|
2013-08-13T09:40:32
|
|
Rename git__win32_path fns to git_win32_path
|
|
abf37327
|
2013-08-13T09:15:39
|
|
windows: Path conversion with better semantics
|
|
aaefbdee
|
2013-08-08T08:48:57
|
|
Discriminate path-specific and general UTF-X conversions
|
|
|
2c0128ee
|
2013-08-07T19:29:33
|
|
Rename git_win_str_utf* to git_win32_path_utf*
|
|
|
9c38f7a6
|
2013-08-07T13:22:41
|
|
Add typedefs for win32 utf-8 and utf-16 buffers
...and normalize the signatures of the two conversion functions.
|
|
|
d8563619
|
2013-08-05T11:41:39
|
|
Split UTF-16 and UTF-8 buffer sizes for win32
Also fixed up call-sites to use the correct buffer sizes, especially
when converting to utf-8.
|
|
f5254d78
|
2013-07-27T20:15:06
|
|
Fix possible double close
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
989710d9
|
2013-07-22T11:22:55
|
|
Fix warning message about mismatched types
|
|
0a1c8f55
|
2013-07-11T17:09:15
|
|
preload configuration paths
|
|
|
022a45e0
|
2013-06-25T16:43:15
|
|
Revert "Work around reparse point stat issues"
This reverts commit 32c12ea6a9cafd76a746af2e2be9366c95752f5b.
|
|
09ee60c6
|
2013-06-24T11:21:09
|
|
Merge pull request #1670 from arrbee/open-cloexec
Add O_CLOEXEC to open calls
|
|
|
32c12ea6
|
2013-06-24T09:19:24
|
|
Work around reparse point stat issues
In theory, p_stat should never return an S_ISLNK result, but due
to the current implementation on Windows with mount points it is
possible that it will. For now, work around that by allowing a
link in the path to a directory being created. If it is really a
problem, then the issue will be caught on the next iteration of
the loop, but typically this will be the right thing to do.
|
|
|
3d3ea4dc
|
2013-06-22T20:58:32
|
|
Add O_CLOEXEC to open calls
|
|
2da72fb2
|
2013-06-14T12:10:13
|
|
fileops: fix invalid read
|
|
|
f7e56150
|
2013-06-05T15:41:42
|
|
Make mkdir early exit cases clearer
There are two places where git_futils_mkdir should exit early or
at least do less. The first is when using GIT_MKDIR_SKIP_LAST
and having that flag leave no directory left to create; it was
being handled previously, but the behavior was subtle. Now I put
in a clear explicit check that exits early in that case.
The second is when there is no directory to create, but there is
a valid path that should be verified. I shifted the logic a bit
so we'll be better about not entering the loop than that happens.
|
|
|
999d4405
|
2013-06-05T12:02:28
|
|
Simplify git_futils_mkdir
This routine was (is) pretty complicated, but given the recent
changes, it seemed like it could be simplified a bit.
|
|
|
2e1fa15f
|
2013-06-05T19:00:16
|
|
I'm a dick
|
|
|
b832ecf7
|
2013-06-05T09:46:51
|
|
Ensure git_futils_mkdir won't mkdir root
This makes sure that git_futils_mkdir always skips over the root
directory at a minimum, even on platforms where the root is not
simply '/'. Also, this removes the GIT_WIN32 ifdef in favor of
making EACCES as a potentially recoverable error on all platforms.
|
|
daf98cb2
|
2013-06-04T14:49:39
|
|
Allow creation of directories under the volume root in Win32
We ran into an issue where cloning a repository to a folder
directly underneath the root of a volume (e.g. 'd:\libgit2')
would fail with an access denied error. This was traced down
to a call to make a directory that is the root (e.g. 'd:') could
return an error indicated access denied instead of an error
indicating the path already exists. This change now handles
the access denied error on Win32 and checks for the existence
of the folder.
|
|
|
4742148d
|
2013-05-20T13:41:39
|
|
Add more diff rename detection tests
This adds a bunch more rename detection tests including checks
vs the working directory, the new exact match options, some more
whitespace variants, etc.
This also adds a git_futils_writebuffer helper function and uses
it in checkout. This is mainly added because I wanted an easy
way to write out a git_buf to disk inside my test code.
|
|
|
03c28d92
|
2013-05-06T06:45:53
|
|
Merge pull request #1526 from arrbee/cleanup-error-return-without-msg
Make sure error messages are set for most error returns
|
|
|
e09d18ee
|
2013-05-03T18:39:44
|
|
allow checkout to proceed when a dir to be removed is in use (win32)
|
|
|
e830c020
|
2013-05-01T13:50:39
|
|
Report stat error when checking if file modified
|
|
|
5b27bf7e
|
2013-03-18T16:17:14
|
|
Merge pull request #1417 from arrbee/opts-for-paths
Implement opts interface for global/system file search paths
|
|
|
32460251
|
2013-03-18T15:54:35
|
|
Fixes and cleanups
Get rid of some dead code, tighten things up a bit, and fix a bug
with core::env test.
|
|
|
41954a49
|
2013-03-18T14:19:35
|
|
Switch search paths to classic delimited strings
This switches the APIs for setting and getting the global/system
search paths from using git_strarray to using a simple string with
GIT_PATH_LIST_SEPARATOR delimited paths, just as the environment
PATH variable would contain. This makes it simpler to get and set
the value.
I also added code to expand "$PATH" when setting a new value to
embed the old value of the path. This means that I no longer
require separate actions to PREPEND to the value.
|
|
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
|
|
|
5540d947
|
2013-03-15T16:39:00
|
|
Implement global/system file search paths
The goal of this work is to expose the search logic for "global",
"system", and "xdg" files through the git_libgit2_opts() interface.
Behind the scenes, I changed the logic for finding files to have a
notion of a git_strarray that represents a search path and to store
a separate search path for each of the three tiers of config file.
For each tier, I implemented a function to initialize it to default
values (generally based on environment variables), and then general
interfaces to get it, set it, reset it, and prepend new directories
to it.
Next, I exposed these interfaces through the git_libgit2_opts
interface, reusing the GIT_CONFIG_LEVEL_SYSTEM, etc., constants
for the user to control which search path they were modifying.
There are alternative designs for the opts interface / argument
ordering, so I'm putting this phase out for discussion.
Additionally, I ended up doing a little bit of clean up regarding
attr.h and attr_file.h, adding a new attrcache.h so the other two
files wouldn't have to be included in so many places.
|
|
|
b72f5d40
|
2013-03-05T15:35:28
|
|
Merge pull request #1369 from arrbee/repo-init-template-hooks
More tests (and fixes) for initializing repo from template
|
|
|
926acbcf
|
2013-03-01T11:07:53
|
|
Clone should not delete directories it did not create
|
|
|
18f08264
|
2013-02-27T13:44:15
|
|
Make mode handling during init more like git
When creating files, instead of actually using GIT_FILEMODE_BLOB
and the other various constants that happen to correspond to
mode values, apparently I should be just using 0666 and 0777, and
relying on the umask to clear bits and make the value sane.
This fixes the rules for copying a template directory and fixes
the checks to match that new behavior. (Further changes to the
checkout logic to follow separately.)
|
|
|
3c42e4ef
|
2013-02-26T11:43:14
|
|
Fix initialization of repo directories
When PR #1359 removed the hooks from the test resources/template
directory, it made me realize that the tests for
git_repository_init_ext using templates must be pretty shabby
because we could not have been testing if the hooks were getting
created correctly.
So, this started with me recreating a couple of hooks, including
a sample and symlink, and adding tests that they got created
correctly in the various circumstances, including with the SHARED
modes, etc. Unfortunately this uncovered some issues with how
directories and symlinks were copied and chmod'ed. Also, there
was a FIXME in the code related to the chmod behavior as well.
Going back over the directory creation logic for setting up a
repository, I found it was a little difficult to read and could
result in creating and/or chmod'ing directories that the user
almost certainly didn't intend.
So that let to this work which makes repo initialization much
more careful (and hopefully easier to follow). It required a
couple of extensions / changes to core fileops utilities, but I
also think those are for the better, at least for git_futils_cp_r
in terms of being careful about what actions it takes.
|
|
6c72035f
|
2013-02-22T12:23:14
|
|
Portability fixes for Solaris
|
|
|
91f13a18
|
2013-02-01T14:23:26
|
|
Try harder to find global config file
|
|
|
de590550
|
2013-01-08T17:11:11
|
|
Resolve crash with diff against empty file
It is not legal inside our `p_mmap` function to mmap a zero length
file. This adds a test that exercises that case inside diff and
fixes the code path where we would try to do that.
The fix turns out not to be a lot of code since our default file
content is already initialized to "" which works in this case.
Fixes #1210
|
|
359fc2d2
|
2013-01-08T17:07:25
|
|
update copyrights
|
|
|
7e5c8a5b
|
2012-12-10T15:31:43
|
|
More checkout improvements
This flips checkout back to be driven off the changes between
the baseline and the target trees. This reinstates the complex
code for tracking the contents of the working directory, but
overall, I think the resulting logic is easier to follow.
|
|
|
cccacac5
|
2012-11-14T22:41:51
|
|
Add POSIX compat lstat() variant for win32
The existing p_lstat implementation on win32 is not quite POSIX
compliant when setting errno to ENOTDIR. This adds an option to
make is be compliant so that code (such as checkout) that cares
to have separate behavior for ENOTDIR can use it portably.
This also contains a couple of other minor cleanups in the
posix_w32.c implementations to avoid unnecessary work.
|
|
|
ad9a921b
|
2012-11-08T17:05:07
|
|
Rework checkout with new strategy options
This is a major reworking of checkout strategy options. The
checkout code is now sensitive to the contents of the HEAD tree
and the new options allow you to update the working tree so that
it will match the index content only when it previously matched
the contents of the HEAD. This allows you to, for example, to
distinguish between removing files that are in the HEAD but not
in the index, vs just removing all untracked files.
Because of various corner cases that arise, etc., this required
some additional capabilities in rmdir and other utility functions.
This includes the beginnings of an implementation of code to read
a partial tree into the index based on a pathspec, but that is
not enabled because of the possibility of creating conflicting
index entries.
|
|
|
331e7de9
|
2012-10-24T17:32:50
|
|
Extensions to rmdir and mkdir utilities
* Rework GIT_DIRREMOVAL values to GIT_RMDIR flags, allowing
combinations of flags
* Add GIT_RMDIR_EMPTY_PARENTS flag to remove parent dirs that
are left empty after removal
* Add GIT_MKDIR_VERIFY_DIR to give an error if item is a file,
not a dir (previously an EEXISTS error was ignored, even for
files) and enable this flag for git_futils_mkpath2file call
* Improve accuracy of error messages from git_futils_mkdir
|
|
|
c1f61af6
|
2012-10-31T20:52:01
|
|
I LIKE THESE NAMES
|
|
|
c8b511f3
|
2012-10-31T11:26:12
|
|
Better naming for file timestamp/size checker
|
|
|
744cc03e
|
2012-10-30T12:10:36
|
|
Add git_config_refresh() API to reload config
This adds a new API that allows users to reload the config if the
file has changed on disk. A new config callback function to
refresh the config was added.
The modified time and file size are used to test if the file needs
to be reloaded (and are now stored in the disk backend object).
In writing tests, just using mtime was a problem / race, so I
wanted to check file size as well. To support that, I extended
`git_futils_readbuffer_updated` to optionally check file size in
addition to mtime, and I added a new function `git_filebuf_stats`
to fetch the mtime and size for an open filebuf (so that the
config could be easily refreshed after a write).
Lastly, I moved some similar file checking code for attributes
into filebuf. It is still only being used for attrs, but it
seems potentially reusable, so I thought I'd move it over.
|
|
|
0d422ec9
|
2012-10-19T15:40:43
|
|
Fix env variable tests with new Win32 path rules
The new Win32 global path search was not working with the
environment variable tests. But when I fixed the test, the new
codes use of getenv() was causing more failures (presumably because
of caching on Windows ???). This fixes the global file lookup to
always go directly to the Win32 API in a predictable way.
|
|
|
4c47a8bc
|
2012-10-17T14:14:51
|
|
Merge pull request #968 from arrbee/diff-support-typechange
Support TYPECHANGE records in status and adjust checkout accordingly
|
|
|
18217e7e
|
2012-10-16T19:34:29
|
|
test: Don't be so picky with failed lookups
Not found means not found, and the other way around.
|
|
|
0d64bef9
|
2012-10-05T15:56:57
|
|
Add complex checkout test and then fix checkout
This started as a complex new test for checkout going through the
"typechanges" test repository, but that revealed numerous issues
with checkout, including:
* complete failure with submodules
* failure to create blobs with exec bits
* problems when replacing a tree with a blob because the tree
"example/" sorts after the blob "example" so the delete was
being processed after the single file blob was created
This fixes most of those problems and includes a number of other
minor changes that made it easier to do that, including improving
the TYPECHANGE support in diff/status, etc.
|
|
|
997579be
|
2012-10-02T17:55:29
|
|
Move win32 specific stuff to win32/findfile.c
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
8b3de0b6
|
2012-10-02T17:16:22
|
|
Optimized win32_nextpath
Based on a suggestion by Russell Belfer.
Signed-off-by: Sven Strickroth <email@cs-ware.de>
Signed-off-by: Russell Belfer <rb@github.com>
|
|
|
19aa8416
|
2012-09-29T21:26:32
|
|
Silence MinGW warnings
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
dee18b82
|
2012-09-29T21:26:04
|
|
Added win32_ prefix for Win32-only methods
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
77ddd4cc
|
2012-09-29T21:24:07
|
|
Make it compile with MinGW on Windows
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
32a4e3b7
|
2012-09-29T20:26:33
|
|
Move code to find msysgit path using registry to own method
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
549ee21a
|
2012-09-29T20:20:41
|
|
Find git installations based on %PATH%
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
f2b126c7
|
2012-09-25T00:33:53
|
|
Implemented the full msysgit fallback chain
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
6605f51d
|
2012-09-24T18:50:37
|
|
Automatically detect msysgit installation path
Do not hardcode the installation path of msysgit, but read installation path from registry.
Also "%PROGRAMFILES%\Git\etc" won't work on x64 systems with 64-bit libgit2, because
msysgit is x86 only and located in "%ProgramFiles(x86)%\Git\etc".
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
68e75c3a
|
2012-09-24T18:06:34
|
|
Calculate the Windows user profile directory the same way as msysgit
On most systems %USERPROFILE% is the same as %HOMEDRIVE%\%HOMEPATH%,
however, for windows machines in an AD or domain environment this
might be different and %HOMEDRIVE%\%HOMEPATH% seems to be better.
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
aed8f8a1
|
2012-09-24T18:02:47
|
|
Honor %HOME% on windows
Use %HOME% before trying to figure out the windows user directory.
Users might set this as they are used on *nix systems.
Signed-off-by: Sven Strickroth <email@cs-ware.de>
|
|
|
c859184b
|
2012-09-11T23:05:24
|
|
Properly handle p_reads
|
|
|
1f35e89d
|
2012-09-11T12:03:33
|
|
Fix diff binary file detection
In the process of adding tests for the max file size threshold
(which treats files over a certain size as binary) there seem to
be a number of problems in the new code with detecting binaries.
This should fix those up, as well as add a test for the file
size threshold stuff.
Also, this un-deprecates `GIT_DIFF_LINE_ADD_EOFNL`, since I
finally found a legitimate situation where it would be returned.
|
|
|
60b9d3fc
|
2012-09-05T15:00:40
|
|
Implement filters for status/diff blobs
This adds support to diff and status for running filters (a la crlf)
on blobs in the workdir before computing SHAs and before generating
text diffs. This ended up being a bit more code change than I had
thought since I had to reorganize some of the diff logic to minimize
peak memory use when filtering blobs in a diff.
This also adds a cap on the maximum size of data that will be loaded
to diff. I set it at 512Mb which should match core git. Right now
it is a #define in src/diff.h but it could be moved into the public
API if desired.
|
|
|
0f4c6175
|
2012-08-28T22:19:08
|
|
Add bounds checking to UTF-8 conversion
|
|
|
6813169a
|
2012-08-06T12:45:59
|
|
windows: Keep UTF-8 on the stack yo
|
|
|
07c06f7a
|
2012-08-24T14:24:33
|
|
Fix memory leak in cp_r
|
|
|
0c8858de
|
2012-08-03T14:28:07
|
|
Fix valgrind issues and leaks
This fixes up a number of problems flagged by valgrind and also
cleans up the internal `git_submodule` allocation handling
overall with a simpler model.
|
|
|
2eb4edf5
|
2012-08-24T10:48:48
|
|
Fix errors on Win32 with new repo init
|
|
|
85bd1746
|
2012-08-22T16:03:35
|
|
Some cleanup suggested during review
This cleans up a number of items suggested during code review
with @vmg, including:
* renaming "outside repo" config API to `git_config_open_default`
* killing the `git_config_open_global` API
* removing the `git_` prefix from the static functions in fileops
* removing some unnecessary functionality from the "cp" command
|
|
|
0e26202c
|
2012-08-01T14:30:08
|
|
fix missing validation and type cast warning
|
|
|
ca1b6e54
|
2012-07-31T17:02:54
|
|
Add template dir and set gid to repo init
This extends git_repository_init_ext further with support for
initializing the repository from an external template directory
and with support for the "create shared" type flags that make a
set GID repository directory.
This also adds tests for much of the new functionality to the
existing `repo/init.c` test suite.
Also, this adds a bunch of new utility functions including a
very general purpose `git_futils_mkdir` (with the ability to
make paths and to chmod the paths post-creation) and a file
tree copying function `git_futils_cp_r`. Also, this includes
some new path functions that were useful to keep the code
simple.
|
|
|
662880ca
|
2012-07-26T16:07:01
|
|
Add git_repository_init_ext for power initters
The extended version of repository init adds support for many
of the things that you can do with `git init` and sets up
structures that will make it easier to extend further in the
future.
|
|
|
f98c32f3
|
2012-08-19T01:26:06
|
|
Merge pull request #778 from ben/clone
Clone
|
|
0b956819
|
2012-07-21T19:11:42
|
|
config: set the error code if we can't find the global/system config
|
|
8651c10f
|
2012-07-17T19:57:37
|
|
Checkout: obey core.symlinks.
|
|
d0a920a6
|
2012-07-07T10:36:35
|
|
refs: deep unfound ref returns ENOTFOUND
|
|
|
29ef309e
|
2012-05-25T09:44:56
|
|
Make errors for system and global files consistent
The error codes from failed lookups of system and global files
on Windows were not consistent with the codes returned on other
platforms. This makes the error detection patterns match and
adds a unit test for the various errors.
|
|
|
9cde607c
|
2012-05-24T15:08:55
|
|
Clean up system file finding tests on Win32
|
|
|
349fb6d7
|
2012-05-24T23:04:41
|
|
windows: Properly expand all environment variables
|
|
|
5f60fd00
|
2012-05-24T13:56:03
|
|
Merge pull request #726 from arrbee/utf16-home-dir
Get user's home dir in UTF-16 clean manner
|
|
|
23059130
|
2012-05-24T12:45:20
|
|
Get user's home dir in UTF-16 clean manner
On Windows, we are having problems with home directories
that have non-ascii characters in them. This rewrites the
relevant code to fetch environment variables as UTF-16 and
then explicitly map then into UTF-8 for our internal usage.
|
|
|
dc07184f
|
2012-05-23T12:05:48
|
|
fileops: Make git_futils_mkdir_r() able to cope with Windows network paths
Partially fix libgit2/libgit2sharp#153
|
|
|
904b67e6
|
2012-05-18T01:48:50
|
|
errors: Rename error codes
|
|
|
e172cf08
|
2012-05-18T01:21:06
|
|
errors: Rename the generic return codes
|
|
|
72bfde97
|
2012-05-14T11:01:14
|
|
Merge pull request #681 from scottjg/solaris-fixes
Fix build/runtime issues on Solaris
|
|
54bdc64a
|
2012-05-10T00:37:03
|
|
Fix rmdir() usage on Solaris
On Solaris, rmdir() throws EEXIST if the folder is not empty, so just add
one more case to check for that, alongside ENOTEMPTY.
|
|
|
dc13f1f7
|
2012-05-10T11:08:59
|
|
Add cache busting to attribute cache
This makes the git attributes and git ignores cache check
stat information before using the file contents from the
cache. For cached files from the index, it checks the SHA
of the file instead. This should reduce the need to ever
call `git_attr_cache_flush()` in most situations.
This commit also fixes the `git_status_should_ignore` API
to use the libgit2 standard parameter ordering.
|
|
1a2b8725
|
2012-04-11T14:27:40
|
|
Typedefs don't have enum in front
|
|
|
555aa453
|
2012-04-09T02:28:31
|
|
fileops: Make git_futils_mkdir_r() able to skip non-empty directories
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09719c50
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2012-03-14T12:13:03
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reference: Fix creation of references with extended ASCII characters in their name
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7c7ff7d1
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2012-03-19T16:10:11
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Migrate index, oid, and utils to new errors
This includes a few cleanups that came up while converting
these files.
This commit introduces a could new git error classes, including
the catchall class: GITERR_INVALID which I'm using as the class
for invalid and out of range values which are detected at too low
a level of library to use a higher level classification. For
example, an overflow error in parsing an integer or a bad letter
in parsing an OID string would generate an error in this class.
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0d0fa7c3
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2012-03-16T15:56:01
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Convert attr, ignore, mwindow, status to new errors
Also cleaned up some previously converted code that still had
little things to polish.
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deafee7b
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2012-03-14T17:36:15
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Continue error conversion
This converts blob.c, fileops.c, and all of the win32 files.
Also, various minor cleanups throughout the code. Plus, in
testing the win32 build, I cleaned up a bunch (although not
all) of the warnings with the 64-bit build.
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e1de726c
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2012-03-12T22:55:40
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Migrate ODB files to new error handling
This migrates odb.c, odb_loose.c, odb_pack.c and pack.c to
the new style of error handling. Also got the unix and win32
versions of map.c. There are some minor changes to other
files but no others were completely converted.
This also contains an update to filebuf so that a zeroed out
filebuf will not think that the fd (== 0) is actually open
(and inadvertently call close() on fd 0 if cleaned up).
Lastly, this was built and tested on win32 and contains a
bunch of fixes for the win32 build which was pretty broken.
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6af24ce3
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2012-03-07T10:55:18
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Merge pull request #590 from arrbee/new-error-handling
Migrating diff to new error handling
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e54d8d89
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2012-03-07T01:37:09
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error-handling: Config
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ae9e29fd
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2012-03-06T16:14:31
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Migrating diff to new error handling
Ended up migrating a bunch of upstream functions as well
including vector, attr_file, and odb in order to get this
to work right.
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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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1a481123
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2012-02-17T00:13:34
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error-handling: References
Yes, this is error handling solely for `refs.c`, but some of the
abstractions leak all ofer the code base.
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da9abdd6
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2012-02-29T13:19:31
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Fix a win32 warning message
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74fa4bfa
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2012-02-28T16:14:47
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Update diff to use iterators
This is a major reorganization of the diff code. This changes
the diff functions to use the iterators for traversing the
content. This allowed a lot of code to be simplified. Also,
this moved the functions relating to outputting a diff into a
new file (diff_output.c).
This includes a number of other changes - adding utility
functions, extending iterators, etc. plus more tests for the
diff code. This also takes the example diff.c program much
further in terms of emulating git-diff command line options.
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13224ea4
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2012-02-27T04:28:31
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buffer: Unify `git_fbuffer` and `git_buf`
This makes so much sense that I can't believe it hasn't been done
before. Kill the old `git_fbuffer` and read files straight into
`git_buf` objects.
Also: In order to fully support 4GB files in 32-bit systems, the
`git_buf` implementation has been changed from using `ssize_t` for
storage and storing negative values on allocation failure, to using
`size_t` and changing the buffer pointer to a magical pointer on
allocation failure.
Hopefully this won't break anything.
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