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make union merge an xdl merge favor

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The current union merge driver is implemented as an post process.  But the
xdl_merge code is quite capable to produce the result by itself.  Therefore
move it there.

Signed-off-by: Bert Wesarg <bert.wesarg@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Bert Wesarg 2010-03-01 22:46:25 +01:00 committed by Junio C Hamano
parent e923eaeb90
commit cd1d61c44f
3 changed files with 19 additions and 45 deletions
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43
ll-merge.c
View File

@ -98,44 +98,11 @@ static int ll_union_merge(const struct ll_merge_driver *drv_unused,
mmfile_t *src2, const char *name2,
int flag, int marker_size)
{
char *src, *dst;
long size;
int status, saved_style;
/* We have to force the RCS "merge" style */
saved_style = git_xmerge_style;
git_xmerge_style = 0;
status = ll_xdl_merge(drv_unused, result, path_unused,
orig, src1, NULL, src2, NULL,
flag, marker_size);
git_xmerge_style = saved_style;
if (status <= 0)
return status;
size = result->size;
src = dst = result->ptr;
while (size) {
char ch;
if ((marker_size < size) &&
(*src == '<' || *src == '=' || *src == '>')) {
int i;
ch = *src;
for (i = 0; i < marker_size; i++)
if (src[i] != ch)
goto not_a_marker;
if (src[marker_size] != '\n')
goto not_a_marker;
src += marker_size + 1;
size -= marker_size + 1;
continue;
}
not_a_marker:
do {
ch = *src++;
*dst++ = ch;
size--;
} while (ch != '\n' && size);
}
result->size = dst - result->ptr;
/* Use union favor */
flag = (flag & 1) | (XDL_MERGE_FAVOR_UNION << 1);
return ll_xdl_merge(drv_unused, result, path_unused,
orig, src1, NULL, src2, NULL,
flag, marker_size);
return 0;
}

1
xdiff/xdiff.h
View File

@ -61,6 +61,7 @@ extern "C" {
/* merge favor modes */
#define XDL_MERGE_FAVOR_OURS 1
#define XDL_MERGE_FAVOR_THEIRS 2
#define XDL_MERGE_FAVOR_UNION 3
#define XDL_MERGE_FAVOR(flags) (((flags)>>4) & 3)
#define XDL_MERGE_FLAGS(level, style, favor) ((level)|(style)|((favor)<<4))

20
xdiff/xmerge.c
View File

@ -28,6 +28,7 @@ typedef struct s_xdmerge {
* 0 = conflict,
* 1 = no conflict, take first,
* 2 = no conflict, take second.
* 3 = no conflict, take both.
*/
int mode;
/*
@ -230,14 +231,19 @@ static int xdl_fill_merge_buffer(xdfenv_t *xe1, const char *name1,
size = fill_conflict_hunk(xe1, name1, xe2, name2,
size, i, style, m, dest,
marker_size);
else if (m->mode == 1)
size += xdl_recs_copy(xe1, i, m->i1 + m->chg1 - i, 0,
else if (m->mode & 3) {
/* Before conflicting part */
size += xdl_recs_copy(xe1, i, m->i1 - i, 0,
dest ? dest + size : NULL);
else if (m->mode == 2)
size += xdl_recs_copy(xe2, m->i2 - m->i1 + i,
m->i1 + m->chg2 - i, 0,
dest ? dest + size : NULL);
else
/* Postimage from side #1 */
if (m->mode & 1)
size += xdl_recs_copy(xe1, m->i1, m->chg1, 1,
dest ? dest + size : NULL);
/* Postimage from side #2 */
if (m->mode & 2)
size += xdl_recs_copy(xe2, m->i2, m->chg2, 1,
dest ? dest + size : NULL);
} else
continue;
i = m->i1 + m->chg1;
}