[RFC PATCH, WAS: "weird diff output?" v3 0/2] implement empty line diff chunk heuristic

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Jacob Keller <jacob.keller@xxxxxxxxx>

Third version of my series with a few more minor fixups. I left the
diff command line and configuration option alone for now, suspecting
that long term we either (a) remove it or (b) use a gitattribute, so
there is no reason to bikeshed the name or its contents right now.

TODO:
* add some tests
* think about whether we need a git attribute or not (I did some
  thinking, and if we do need to configure this at all, this is where I
  would put it)
* figure out how to make is_emptyline CRLF aware

Changes since my v2:
* fixed is_emptylines in the wrong patch

Changes since my v1:
* rename xdl_hash_and_recmatch to recs_match
* remove counting empty lines in the first section of the looping

Changes since Stefan's v1:
* Added a patch to implement xdl_hash_and_recmatch as Junio suggested.
* Fixed a segfault in Stefan's patch
* Added XDL flag to configure the behavior
* Used an int and counted empty lines via += instead of |=
* Renamed starts_with_emptyline to is_emptyline
* Added diff command line and config options

The interdiff between v2 and v3 is very small:

diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c
index 9436ad735243..dd93e6781e8b 100644
--- a/xdiff/xdiffi.c
+++ b/xdiff/xdiffi.c
@@ -485,6 +485,7 @@ int xdl_change_compact(xdfile_t *xdf, xdfile_t *xdfo, long flags) {
 			 * the group.
 			 */
 			while (ix < nrec && recs_match(recs, ixs, ix, flags)) {
+
 				emptylines += is_emptyline(recs[ix]->ptr);
 
 				rchg[ixs++] = 0;

Jacob Keller (1):
  xdiff: add recs_match helper function

Stefan Beller (1):
  xdiff: implement empty line chunk heuristic

 Documentation/diff-config.txt  |  6 ++++++
 Documentation/diff-options.txt |  6 ++++++
 diff.c                         | 11 +++++++++++
 xdiff/xdiff.h                  |  2 ++
 xdiff/xdiffi.c                 | 41 +++++++++++++++++++++++++++++++++++++----
 5 files changed, 62 insertions(+), 4 deletions(-)

-- 
2.8.1.369.geae769a

--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel Development]     [Gcc Help]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [V4L]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]     [Fedora Users]