Russell Belfer [Mon, 4 Nov 2013 23:47:35 +0000 (15:47 -0800)]
Preserve file error in iterator
When the filesystem iterator encounters an error with a file, it
returns the error but because of the cleanup code, it was in some
cases erasing the error message. This uses the giterr_detach API
to make sure that the actual error message is restored after the
cleanup code has been run.
Russell Belfer [Mon, 4 Nov 2013 23:45:31 +0000 (15:45 -0800)]
Add giterr_detach API to get and clear error
There are a number of cases where it is convenient to be able to
fetch and "claim" the current error string, clearing the error.
This is helpful when you need to call some code that may alter
the error and you want to restore it later on and/or report it via
some other mechanism.
Sascha Cunz [Sat, 2 Nov 2013 03:45:32 +0000 (03:45 +0000)]
Checkout: git_checkout_head is git_checkout_tree without a treeish
The last commit taught git_checkout_tree to actually do something
meaningfull, when treeish was NULL. This lets us rewrite
git_checkout_head to simply call git_checkout_tree without giving it a
treeish.
Sascha Cunz [Sat, 2 Nov 2013 03:43:34 +0000 (03:43 +0000)]
Checkout: Don't assert if treeish is NULL
In git_checkout_tree, the first check tests if either repo or treeish is
NULL and says that eithor of them has to have a valid value. But there
is no code to handle the treeish == NULL case.
So, do something meaningful in that case: use HEAD instead.
Russell Belfer [Fri, 1 Nov 2013 20:49:43 +0000 (13:49 -0700)]
Fix --assume-unchanged support
This was never really working right because we were checking the
wrong flag and not checking it in all the places that we need to
be checking it. I finally got around to writing a test and adding
actual support for it.
Russell Belfer [Fri, 1 Nov 2013 17:18:03 +0000 (10:18 -0700)]
Add git_diff_options_init helper
Sometimes the static initializer for git_diff_options cannot be
used and since setting them to all zeroes doesn't actually work
quite right, this adds a new helper for that situation.
This also adds an explicit new value to the submodule settings
options to be used when those enums need static initialization.
Russell Belfer [Thu, 31 Oct 2013 21:36:52 +0000 (14:36 -0700)]
Make diff and status perform soft index reload
This changes `git_index_read` to have two modes - a hard index
reload that always resets the index to match the on-disk data
(which was the old behavior) and a soft index reload that uses
the timestamp / file size information and only replaces the index
data if the file on disk has been modified.
This then updates the git_status code to do a soft reload unless
the new GIT_STATUS_OPT_NO_REFRESH flag is passed in.
This also changes the behavior of the git_diff functions that use
the index so that when an index is not explicitly passed in (i.e.
when the functions call git_repository_index for you), they will
also do a soft reload for you.
This intentionally breaks the file signature of git_index_read
because there has been some confusion about the behavior previously
and it seems like all existing uses of the API should probably be
examined to select the desired behavior.
Russell Belfer [Wed, 30 Oct 2013 20:56:42 +0000 (13:56 -0700)]
Fix some of the glaring errors in GIT_DIFF_REVERSE
These changes fix the basic problem with GIT_DIFF_REVERSE being
broken for text diffs. The reversed diff entries were getting
added to the git_diff correctly, but some of the metadata was kept
incorrectly in a way that prevented the text diffs from being
generated correctly. Once I fixed that, it became clear that it
was not possible to merge reversed diffs correctly. This has a
first pass at fixing that problem. We probably need more tests
to make sure that is really fixed thoroughly.
Set new multivar values using unmatcheable regexp.
Seems that regexp in Mac OS X and Linux were behaving
differently: while in OS X the empty string didn't
match any value, in Linux it was matching all of them,
so the the second fetch refspec was overwritting the
first one, instead of creating a new one.
Using an unmatcheable regular expression solves the
problem (and seems to be portable).
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.
It was there to keep it apart from the one which read in from a file on
disk. This other indexer does not exist anymore, so there is no need for
anything other than git_indexer to refer to it.
While here, rename _add() function to _append() and _finalize() to
_commit(). The former change is cosmetic, while the latter avoids
talking about "finalizing", which OO languages use to mean something
completely different.
Russell Belfer [Wed, 30 Oct 2013 01:30:49 +0000 (18:30 -0700)]
Extract common example helpers and reorg examples
This reorganizes a few of the examples so that the main function
comes first with the argument parsing extracted into a helper
that can come at the end of the file (so the example focuses more
on the use of libgit2 instead of command line support). This also
creates a shared examples/common.[ch] so that useful helper funcs
can be shared across examples instead of repeated.
Cheng Zhao [Mon, 28 Oct 2013 04:57:15 +0000 (12:57 +0800)]
The "common.h" should be included before "config.h".
When building libgit2 for ia32 architecture on a x64 machine, including
"config.h" without a "common.h" would result the following error:
C:\Program Files\Microsoft SDKs\Windows\v7.1\include\winbase.h(2288): error C2373: 'InterlockedIncrement' : redefinition; different type modifiers [C:\cygwin\home\zcbenz\codes\git-utils\build\libgit2.vcxproj]
C:\Program Files\Microsoft SDKs\Windows\v7.1\include\winbase.h(2295): error C2373: 'InterlockedDecrement' : redefinition; different type modifiers [C:\cygwin\home\zcbenz\codes\git-utils\build\libgit2.vcxproj]
C:\Program Files\Microsoft SDKs\Windows\v7.1\include\winbase.h(2303): error C2373: 'InterlockedExchange' : redefinition; different type modifiers [C:\cygwin\home\zcbenz\codes\git-utils\build\libgit2.vcxproj]
C:\Program Files\Microsoft SDKs\Windows\v7.1\include\winbase.h(2314): error C2373: 'InterlockedExchangeAdd' : redefinition; different type modifiers [C:\cygwin\home\zcbenz\codes\git-utils\build\libgit2.vcxproj]
It turns out that variables have function scope by default. Let's
really set -liconv and add a few libraries that were forgotten in
the previous commit.
We also need to special-case OSX, as they ship zlib but do not provide
a pkg-config file for it.
The user is unable to derive the number of deltas in the pack, as that
would require them to capture the stats exactly in the moment between
download and final processing, which is abstracted away in the fetch.
Capture these numbers for the user and expose them in the progress
struct. The clone and fetch examples now also present this information
to the user.
Set the correct dependencies in the pkg-config file
When linking statically, the including project needs to know what the
current library build depends on so they can link to it. Store this
information in the pkg-config file.
While here, remove claims that users need to link to zlib or libcrypto.
The names from libssh2 are somewhat obtuse for us. We can simplify the
usual key/passphrase credential's name, as well as make clearer what the
custom signature function is.
Russell Belfer [Mon, 21 Oct 2013 22:36:38 +0000 (15:36 -0700)]
Implement patience and minimal diff flags
It seems that to implement these options, we just have to pass
the appropriate flags through to the libxdiff code taken from
core git. So let's do it (and add a test).