|
26ea28f3
|
2015-08-17T15:18:47
|
|
Fix build warning: implicit declaration of function ‘git_transaction_config_new’
|
|
5340d63d
|
2015-07-12T12:50:23
|
|
config: perform unlocking via git_transaction
This makes the API for commiting or discarding changes the same as for
references.
|
|
|
36f784b5
|
2015-06-01T20:02:23
|
|
config: expose locking via the main API
This lock/unlock pair allows for the cller to lock a configuration file
to avoid concurrent operations.
It also allows for a transactional approach to updating a configuration
file. If multiple updates must be made atomically, they can be done
while the config is locked.
|
|
|
15c38103
|
2015-05-09T11:22:27
|
|
config: provide a function to reverse-lookup mapped cvars
|
|
e30438cc
|
2015-04-29T13:40:42
|
|
Do not call regfree() on an empty regex that is not successfully created by regcomp
(also removed an unused member "has_regex" from all_iter)
|
|
129022ee
|
2015-04-10T09:36:38
|
|
Fix checking of return value for regcomp.
The regcomp function returns a non-zero value if compilation of
a regular expression fails. In most places we only check for
negative values, but positive values indicate an error, as well.
Fix this tree-wide, fixing a segmentation fault when calling
git_config_iterator_glob_new with an invalid regexp.
|
|
|
9a97f49e
|
2014-12-21T15:31:03
|
|
config: borrow refcounted references
This changes the get_entry() method to return a refcounted version of
the config entry, which you have to free when you're done.
This allows us to avoid freeing the memory in which the entry is stored
on a refresh, which may happen at any time for a live config.
For this reason, get_string() has been forbidden on live configs and a
new function get_string_buf() has been added, which stores the string in
a git_buf which the user then owns.
The functions which parse the string value takea advantage of the
borrowing to parse safely and then release the entry.
|
|
|
eac773d9
|
2015-01-14T15:05:43
|
|
config: add parsing and getter for paths
|
|
|
55cb4999
|
2014-10-23T19:05:02
|
|
config: remove the refresh function and backend field
We have been refreshing on read and write for a while now, so
git_config_refresh() is at best a no-op, and might just end up wasting
cycles.
|
|
|
5f0527ae
|
2014-05-30T13:06:34
|
|
config: initialize the error
The error would be uninitialized if we take a snapshot of a config with
no backends.
|
|
a37aa82e
|
2014-05-13T15:54:23
|
|
Some coverity inspired cleanups
|
|
|
af567e88
|
2014-05-12T10:44:13
|
|
Merge pull request #2334 from libgit2/rb/fix-2333
Be more careful with user-supplied buffers
|
|
|
d2c4d1c6
|
2014-05-12T10:04:52
|
|
Merge pull request #2188 from libgit2/cmn/config-snapshot
Configuration snapshotting
|
|
|
1e4976cb
|
2014-05-08T10:17:14
|
|
Be more careful with user-supplied buffers
This adds in missing calls to `git_buf_sanitize` and fixes a
number of places where `git_buf` APIs could inadvertently write
NUL terminator bytes into invalid buffers. This also changes the
behavior of `git_buf_sanitize` to NUL terminate a buffer if it can
and of `git_buf_shorten` to do nothing if it can.
Adds tests of filtering code with zeroed (i.e. unsanitized) buffer
which was previously triggering a segfault.
|
|
|
0f603132
|
2014-05-01T14:47:33
|
|
Improve handling of fake home directory
There are a few tests that set up a fake home directory and a
fake GLOBAL search path so that we can test things in global
ignore or attribute or config files. This cleans up that code to
work more robustly even if there is a test failure. This also
fixes some valgrind warnings where scanning search paths for
separators could end up doing a little bit of sketchy data access
when coming to the end of search list.
|
|
|
bc91347b
|
2014-04-30T11:16:31
|
|
Fix remaining init_options inconsistencies
There were a couple of "init_opts()" functions a few more cases
of structure initialization that I somehow missed.
|
|
183aa4f8
|
2014-04-30T17:46:53
|
|
Check for NULL before passing it to vsnprintf
|
|
|
55ebd7d3
|
2014-03-13T17:11:34
|
|
config: implement config snapshotting
In order to have consistent views of the config files for remotes,
submodules et al. and a configuration that represents what is currently
stored on-disk, we need a way to provide a view of the configuration
that does not change.
The goal here is to provide the snapshotting part by creating a
read-only copy of the state of the configuration at a particular point
in time, which does not change when a repository's main config changes.
|
|
|
8286300a
|
2013-12-18T11:48:57
|
|
Fix git_submodule_sync and add new config helper
This fixes `git_submodule_sync` to correctly update the remote URL
of the default branch of the submodule along with the URL in the
parent repository config (i.e. match core Git's behavior).
Also move some useful helper logic from the submodule code into
a shared config API `git_config__update_entry` that can either set
or delete an entry with constraints like not overwriting or not
creating a new entry. I used that helper to update a couple other
places in the code.
|
|
b9f81997
|
2014-03-05T21:49:23
|
|
Added function-based initializers for every options struct.
The basic structure of each function is courtesy of arrbee.
|
|
83634d38
|
2014-02-24T17:43:10
|
|
Move system directory cache out of utils
|
|
|
ee550477
|
2014-01-26T16:11:18
|
|
config: use git_buf for returning paths
Again, we already did this internally, so simply remove the conversions.
|
|
|
b97e55f2
|
2014-01-18T14:48:59
|
|
Merge pull request #2059 from linquize/git_config_get_crash
Fix segfault when calling git_config_get_* functions when a config fails to load
|
|
c24130e0
|
2014-01-18T22:58:31
|
|
Fix segfault when calling git_config_get_* functions when a config fails to load
Reinitialize the result code of get_entry() to GIT_ENOTFOUND
|
|
1234738e
|
2014-01-13T22:12:02
|
|
Fix a memory leak in `git_config_iterator_glob_new`.
|
|
e3c6a1bf
|
2014-01-12T23:30:06
|
|
config: handle NULL pointers passed to git_config_iterator_free()
Signed-off-by: Brodie Rao <brodie@sf.io>
|
|
|
26c1cb91
|
2013-12-09T09:44:03
|
|
One more rename/cleanup for callback err functions
|
|
|
f10d7a36
|
2013-12-06T15:53:26
|
|
Further callback error check style fixes
Okay, I've decided I like the readability of this style much
better so I used it everywhere.
|
|
|
25e0b157
|
2013-12-06T15:07:57
|
|
Remove converting user error to GIT_EUSER
This changes the behavior of callbacks so that the callback error
code is not converted into GIT_EUSER and instead we propagate the
return value through to the caller. Instead of using the
giterr_capture and giterr_restore functions, we now rely on all
functions to pass back the return value from a callback.
To avoid having a return value with no error message, the user
can call the public giterr_set_str or some such function to set
an error message. There is a new helper 'giterr_set_callback'
that functions can invoke after making a callback which ensures
that some error message was set in case the callback did not set
one.
In places where the sign of the callback return value is
meaningful (e.g. positive to skip, negative to abort), only the
negative values are returned back to the caller, obviously, since
the other values allow for continuing the loop.
The hardest parts of this were in the checkout code where positive
return values were overloaded as meaningful values for checkout.
I fixed this by adding an output parameter to many of the internal
checkout functions and removing the overload. This added some
code, but it is probably a better implementation.
There is some funkiness in the network code where user provided
callbacks could be returning a positive or a negative value and
we want to rely on that to cancel the loop. There are still a
couple places where an user error might get turned into GIT_EUSER
there, I think, though none exercised by the tests.
|
|
|
96869a4e
|
2013-12-03T16:45:39
|
|
Improve GIT_EUSER handling
This adds giterr_user_cancel to return GIT_EUSER and clear any
error message that is sitting around. As a result of using that
in places, we need to be more thorough with capturing errors that
happen inside a callback when used internally. To help with that,
this also adds giterr_capture and giterr_restore so that when we
internally use a foreach-type function that clears errors and
converts them to GIT_EUSER, it is easier to restore not just the
return value, but the actual error message text.
|
|
|
9f77b3f6
|
2013-11-25T14:21:34
|
|
Add config read fns with controlled error behavior
This adds `git_config__lookup_entry` which will look up a key in
a config and return either the entry or NULL if the key was not
present. Optionally, it can either suppress all errors or can
return them (although not finding the key is not an error for this
function). Unlike other accessors, this does not normalize the
config key string, so it must only be used when the key is known
to be in normalized form (i.e. all lower-case before the first dot
and after the last dot, with no invalid characters).
This also adds three high-level helper functions to look up config
values with no errors and a fallback value. The three functions
are for string, bool, and int values, and will resort to the
fallback value for any error that arises. They are:
* `git_config__get_string_force`
* `git_config__get_bool_force`
* `git_config__get_int_force`
None of them normalize the config `key` either, so they can only
be used for internal cases where the key is known to be in normal
format.
|
|
3793fa9b
|
2013-10-31T01:08:50
|
|
Fix saving remotes with several fetch/push ref specs.
At some moment git_config_delete_entry lost the ability to delete one entry of
a multivar configuration. The moment you had more than one fetch or push
ref spec for a remote you will not be able to save that remote anymore. The
changes in network::remote::remotes::save show that problem.
I needed to create a new git_config_delete_multivar because I was not able to
remove one or several entries of a multivar config with the current API.
Several tries modifying how git_config_set_multivar(..., NULL) behaved were
not successful.
git_config_delete_multivar is very similar to git_config_set_multivar, and
delegates into config_delete_multivar of config_file. This function search
for the cvar_t that will be deleted, storing them in a temporal array, and
rebuilding the linked list. After calling config_write to delete the entries,
the cvar_t stored in the temporal array are freed.
There is a little fix in config_write, it avoids an infinite loop when using
a regular expression (case for the multivars). This error was found by the
test network::remote::remotes::tagopt.
|
|
|
f4be8209
|
2013-08-14T00:45:05
|
|
config: don't special-case the multivar iterator
Build it on top of the normal iterator instead, which lets use re-use
a lot of code.
|
|
|
86c02614
|
2013-08-09T11:05:02
|
|
config: deduplicate iterator creation
When the glob iterator is passed NULL regexp, call the non-globbing
iterator so we don't have to special-case which functions to call.
|
|
|
d8289b9f
|
2013-08-09T11:03:13
|
|
config: handle empty backends when iterating
|
|
|
d8488b98
|
2013-08-09T10:37:35
|
|
config: implement _foreach and _foreach_match on top of the iterator directly
Use a glob iterator instead of going through
git_config_backend_foreach_match. This function is left as it's
exposed in the API.
|
|
|
54f3a572
|
2013-08-09T10:29:11
|
|
config: introduce a regex-filtering iterator
|
|
|
5880962d
|
2013-08-09T09:05:19
|
|
config: introduce _iterator_new()
As the name suggests, it iterates over all the entries
|
|
|
a319ffae
|
2013-08-08T21:00:33
|
|
config: fix leaks in the iterators
|
|
|
1e96c9d5
|
2013-08-08T20:47:06
|
|
config: add _next() and _iterator_free()
Make it look like the refs iterator API.
|
|
|
99dfb538
|
2013-08-08T17:57:59
|
|
config: working multivar iterator
Implement the foreach version as a wrapper around the iterator.
|
|
|
cca5df63
|
2013-08-08T16:59:39
|
|
config: hopefully get the iterator to work on multivars
|
|
|
3a7ffc29
|
2013-08-08T16:18:07
|
|
config: initial multivar iterator
|
|
|
eba73992
|
2013-08-08T14:39:32
|
|
config: move next() and free() into the iterator
Like we have in the references iterator, next and free belong in the
iterator itself.
|
|
|
4efa3290
|
2013-08-08T13:41:18
|
|
config: get_multivar -> get_multivar_foreach
The plain function will return an iterator, so move this one out of
the way.
|
|
|
84fec6f6
|
2013-08-08T13:14:35
|
|
config: saner iterator errors
Really report an error in foreach if we fail to allocate the iterator,
and don't fail if the config is emtpy.
|
|
|
4d588d97
|
2013-08-08T11:24:47
|
|
Don't typedef a pointer
Make the iterator structure opaque and make sure it compiles.
|
|
a603c191
|
2013-03-18T21:02:36
|
|
replaced foreach() with non callback based iterations in git_config_backend
new functions in struct git_config_backend:
* iterator_new(...)
* iterator_free(...)
* next(...)
The old callback based foreach style can still be used with `git_config_backend_foreach_match`
|
|
|
e4fda954
|
2013-07-09T16:46:18
|
|
A little git_config_get_multivar code cleanup
|
|
07fba63e
|
2013-07-06T23:51:40
|
|
Fix return value in git_config_get_multivar
If there is not an error, the return value was always the return value
of the last call to file->get_multivar
With this commit GIT_ENOTFOUND is only returned if all the calls to
filge-get_multivar return GIT_ENOTFOUND.
|
|
|
37f66e82
|
2013-06-12T15:21:21
|
|
Fix Windows warnings
This fixes problems with missing function prototypes and 64-bit
data issues on Windows.
|
|
6de9b2ee
|
2013-06-12T21:10:33
|
|
util: It's called `memzero`
|
|
|
eb58e2d0
|
2013-06-12T21:05:48
|
|
Merge remote-tracking branch 'arrbee/minor-paranoia' into development
|
|
|
3e9e6cda
|
2013-06-07T09:54:33
|
|
Add safe memset and use it
This adds a `git__memset` routine that will not be optimized away
and updates the places where I memset() right before a free() call
to use it.
|
|
|
f658dc43
|
2013-05-31T14:09:58
|
|
Zero memory for major objects before freeing
By zeroing out the memory when we free larger objects (i.e. those
that serve as collections of other data, such as repos, odb, refdb),
I'm hoping that it will be easier for libgit2 bindings to find
errors in their object management code.
|
|
|
16adc9fa
|
2013-05-24T10:35:58
|
|
Typedef git_config_level_t and use it everywhere
The GIT_CONFIG_LEVEL constants actually work well as an enum
because they are mutually exclusive, so this adds a typedef to
the enum and uses that everywhere that one of these constants are
expected, instead of the old code that typically used an unsigned
int.
|
|
|
0700ca1a
|
2013-05-23T16:11:53
|
|
More config code checks and cleanups
|
|
|
3b32b6d3
|
2013-05-23T09:19:42
|
|
More tests of config with various absent files
Plus a bit of extra paranoia to ensure config object has valid
contents.
|
|
|
0cb16fe9
|
2013-05-15T20:26:55
|
|
Unify whitespaces to tabs
|
|
|
5d831887
|
2013-05-07T00:10:02
|
|
config: convenience function to open global/xdg
The rules for which one to open is a bit silly, so let's make it
easier for our users.
|
|
|
a4b75dcf
|
2013-05-06T21:51:25
|
|
repo: unconditionally create a global config backend
When a repository is initialised, we need to probe to see if there is
a global config to load. If this is not the case, the user isn't able
to write to the global config without creating the backend and adding
it themselves, which is inconvenient and overly complex.
Unconditionally create and add a backend for the global config file
regardless of whether it exists as a convenience for users.
To enable this, we allow creating backends to files that do not exist
yet, changing the semantics somewhat, and making some tests invalid.
|
|
|
3f663178
|
2013-05-01T13:38:56
|
|
More care catching and setting config errors
|
|
|
0a1755c0
|
2013-04-30T03:15:45
|
|
Catch issue in config set with no config file
This prevents a segfault when setting a value in the config of a
repository that doesn't have a config file.
|
|
|
6be368bf
|
2013-04-22T16:24:53
|
|
Clear repo config cache when cfgs are set
This is a conservative change, but it seemed like the only safe
thing to do -- i.e. clear the cvar cache when a config gets set.
|
|
|
ab01cbd4
|
2013-04-22T14:24:12
|
|
Add configs to repo config cache
This adds a bunch of additional config values to the repository
config value cache and makes it easier to add a simple boolean
config without creating enum values for each possible setting.
Also, this fixes a bug in git_config_refresh where the config
cache was not being cleared which could lead to potential
incorrect values.
The work to start using the new cached configs will come in the
next couple of commits...
|
|
|
83041c71
|
2013-04-19T11:52:04
|
|
Move git_config_backend to include/git2/sys
Moving backend implementor objects into include/git2/sys so the
APIs can be isolated from the ones that normal libgit2 users
would be likely to use.
|
|
5b27bf7e
|
2013-03-18T16:17:14
|
|
Merge pull request #1417 from arrbee/opts-for-paths
Implement opts interface for global/system file search paths
|
|
|
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.
|
|
|
50eb8520
|
2013-03-18T14:05:31
|
|
Merge pull request #1420 from KindDragon/static-code-analyzer-warnings
Several warnings detected by static code analyzer fixed
|
|
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.
|
|
|
48bde2f1
|
2013-03-08T02:11:34
|
|
config: don't allow passing NULL as a value to set
Passing NULL is non-sensical. The error message leaves to be desired,
though, as it leaks internal implementation details. Catch it at the
`git_config_set_string` level and set an appropriate error message.
|
|
|
487fc724
|
2013-03-01T13:41:53
|
|
Allow empty config object and use it
This removes assertions that prevent us from having an empty
git_config object and then updates some tests that were
dependent on global config state to use an empty config before
running anything.
|
|
|
1e7799e8
|
2013-01-29T12:15:18
|
|
Implement config key validation rules
This is a new implementation of core git's config key checking
rules that prevents non-alphanumeric characters (and '-') for
the top-level section and key names inside of config files.
This also validates the target section name when renaming
sections.
|
|
|
359fc2d2
|
2013-01-08T17:07:25
|
|
update copyrights
|
|
c7231c45
|
2012-11-30T16:31:42
|
|
Deploy GITERR_CHECK_VERSION
|
|
|
69177621
|
2012-11-29T14:07:50
|
|
Deploy git_config_backend version
|
|
|
7bf87ab6
|
2012-11-28T09:58:48
|
|
Consolidate text buffer functions
There are many scattered functions that look into the contents of
buffers to do various text manipulations (such as escaping or
unescaping data, calculating text stats, guessing if content is
binary, etc). This groups all those functions together into a
new file and converts the code to use that.
This has two enhancements to existing functionality. The old
text stats function is significantly rewritten and the BOM
detection code was extended (although largely we can't deal with
anything other than a UTF8 BOM).
|
|
|
54b2a37a
|
2012-11-20T16:02:25
|
|
Clean up config.h
|
|
|
cc6b4162
|
2012-11-20T10:24:18
|
|
It is okay to not have a .gitconfig file
Opening a repo is generating an error if you don't have a
.gitconfig file in your home directory, but that should be
legal.
|
|
270160b9
|
2012-11-17T13:39:24
|
|
config: Opening a nonexistent file returns ENOTFOUND
|
|
0ec11828
|
2012-11-16T02:17:57
|
|
Fix -Wmaybe-uninitialized warning
|
|
6132a54e
|
2012-11-13T16:13:10
|
|
Fix a few valgrind errors
|
|
|
0da81d2b
|
2012-11-13T14:43:23
|
|
config: return an emtpy string when there is no value
Returning NULL for the string when we haven't signaled an error
condition is counter-intuitive and causes unnecessary edge
cases. Return an empty string when asking for a string value for a
configuration variable such as '[section] var' to avoid these edge
cases.
If the distinction between no value and an empty value is needed, this
can be retrieved from the entry directly. As a side-effect, this
change stops the int parsing functions from segfaulting on such a
variable.
|
|
|
3ee078c0
|
2012-11-13T13:46:17
|
|
config: rename get_config_entry -> config_entry
We're already in the git_config namespace, there is no need to repeat
it.
|
|
|
55f9837f
|
2012-11-09T21:49:50
|
|
config: make git_config_open_level() work with an empty config
|
|
|
744cc03e
|
2012-10-30T12:10:36
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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.
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1b934689
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2012-10-25T10:55:03
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Merge pull request #925 from nulltoken/topic/moving-branch-updates-config
Updates config upon moving and deletion of branches
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505f37b4
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2012-10-25T19:22:35
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config: Only dereference value on success
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aba70781
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2012-09-11T18:11:26
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config: introduce git_config_rename_section()
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a1abe66a
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2012-09-10T12:11:02
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Add config level support in the config API
Added `struct git_config_entry`: a git_config_entry contains the key, the value, and the config file level from which a config element was found.
Added `git_config_open_level`: build a single-level focused config object from a multi-level one.
We are now storing `git_config_entry`s in the khash of the config_file
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4258d483
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2012-10-02T17:21:07
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Rename xdr to xdg
Signed-off-by: Sven Strickroth <email@cs-ware.de>
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c378a118
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2012-09-25T00:11:53
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git_config_open_default: Honour xdr config
Signed-off-by: Sven Strickroth <email@cs-ware.de>
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d7940ac3
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2012-09-25T00:09:44
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Fixed missing method
Signed-off-by: Sven Strickroth <email@cs-ware.de>
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8b4f9b17
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2012-09-24T18:59:00
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Correctly read xdr compatible %HOME%/.config/git/config config file
This file is not just read if the global config file (%HOME%/.gitconfig)
is not found, however, it is used everytime but with lower priority.
Signed-off-by: Sven Strickroth <email@cs-ware.de>
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7fbca880
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2012-08-24T14:32:45
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Support new config locations
As of git v1.7.12, $HOME/.config/git/ is supported as a new
location for "config", "attributes", and "ignore" files.
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85bd1746
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2012-08-22T16:03:35
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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
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ca1b6e54
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2012-07-31T17:02:54
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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.
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b8457baa
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2012-07-24T07:57:58
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portability: Improve x86/amd64 compatibility
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b3ff1dab
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2012-07-10T15:22:39
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Adding git_config_foreach_match() iteration fn
Adding a new config iteration function that let's you iterate
over just the config entries that match a particular regular
expression. The old foreach becomes a simple use of this with
an empty pattern.
This also fixes an apparent bug in the existing `git_config_foreach`
where returning a non-zero value from the iteration callback was
not correctly aborting the iteration and the returned value was
not being propogated back to the caller of foreach.
Added to tests to cover all these changes.
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