src/diff_patch.c


Log

Author Commit Date CI Message
Russell Belfer 74ded024 2013-06-17T17:03:34 Add "as_path" parameters to blob and buffer diffs This adds parameters to the four functions that allow for blob-to- blob and blob-to-buffer differencing (either via callbacks or by making a git_diff_patch object). These parameters let you say that filename we should pretend the blob has while doing the diff. If you pass NULL, there should be no change from the existing behavior, which is to skip using attributes for file type checks and just look at content. With the parameters, you can plug into the new diff driver functionality and get binary or non-binary behavior, plus function context regular expressions, etc. This commit also fixes things so that the git_diff_delta that is generated by these functions will actually be populated with the data that we know about the blobs (or buffers) so you can use it appropriately. It also fixes a bug in generating patches from the git_diff_patch objects created via these functions. Lastly, there is one other behavior change that may matter. If there is no difference between the two blobs, these functions no longer generate any diff callbacks / patches unless you have passed in GIT_DIFF_INCLUDE_UNMODIFIED. This is pretty natural, but could potentially change the behavior of existing usage.
Russell Belfer a1683f28 2013-06-14T16:18:04 More tests and bug fixes for status with rename This changes the behavior of the status RENAMED flags so that they will be combined with the MODIFIED flags if appropriate. If a file is modified in the index and also renamed, then the status code will have both the GIT_STATUS_INDEX_MODIFIED and INDEX_RENAMED bits set. If it is renamed but the OID has not changed, then just the GIT_STATUS_INDEX_RENAMED bit will be set. Similarly, the flags GIT_STATUS_WT_MODIFIED and GIT_STATUS_WT_RENAMED can both be set independently of one another. This fixes a serious bug where the check for unmodified files that was done at data load time could end up erasing the RENAMED state of a file that was renamed with no changes. Lastly, this contains a bunch of new tests for status with renames, including tests where the only rename changes are case changes. The expected results of these tests have to vary by whether the platform uses a case sensitive filesystem or not, so the expected data covers those platform differences separately.
Russell Belfer 360f42f4 2013-06-12T14:18:09 Fix diff header naming issues This makes the git_diff_patch definition private to diff_patch.c and fixes a number of other header file naming inconsistencies to use `git_` prefixes on functions and structures that are shared between files.
Russell Belfer ef3374a8 2013-06-12T13:46:44 Improvements to git_array This changes the size data to uint32_t, fixes the array growth logic to use a simple 1.5x multiplier, and uses a generic inline function for growing the array to make the git_array_alloc API feel more natural (i.e. it returns a pointer to the new item).
Russell Belfer f9c824c5 2013-06-12T11:55:27 Add patch from blobs API This adds two new public APIs: git_diff_patch_from_blobs and git_diff_patch_from_blob_and_buffer, plus it refactors the code for git_diff_blobs and git_diff_blob_to_buffer so that they code is almost entirely shared between these APIs, and adds tests for the new APIs.
Russell Belfer 5dc98298 2013-06-11T11:22:22 Implement regex pattern diff driver This implements the loading of regular expression pattern lists for diff drivers that search for function context in that way. This also changes the way that diff drivers update options and interface with xdiff APIs to make them a little more flexible.
Russell Belfer 114f5a6c 2013-06-10T10:10:39 Reorganize diff and add basic diff driver This is a significant reorganization of the diff code to break it into a set of more clearly distinct files and to document the new organization. Hopefully this will make the diff code easier to understand and to extend. This adds a new `git_diff_driver` object that looks of diff driver information from the attributes and the config so that things like function content in diff headers can be provided. The full driver spec is not implemented in the commit - this is focused on the reorganization of the code and putting the driver hooks in place. This also removes a few #includes from src/repository.h that were overbroad, but as a result required extra #includes in a variety of places since including src/repository.h no longer results in pulling in the whole world.