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-rw-r--r--xdiff/xdiff.h15
-rw-r--r--xdiff/xmerge.c33
2 files changed, 37 insertions, 11 deletions
diff --git a/xdiff/xdiff.h b/xdiff/xdiff.h
index 4da052a3ff..3f6229edbe 100644
--- a/xdiff/xdiff.h
+++ b/xdiff/xdiff.h
@@ -58,6 +58,12 @@ extern "C" {
#define XDL_MERGE_ZEALOUS_ALNUM 3
#define XDL_MERGE_LEVEL_MASK 0x0f
+/* merge favor modes */
+#define XDL_MERGE_FAVOR_OURS 1
+#define XDL_MERGE_FAVOR_THEIRS 2
+#define XDL_MERGE_FAVOR(flags) (((flags)>>4) & 3)
+#define XDL_MERGE_FLAGS(level, style, favor) ((level)|(style)|((favor)<<4))
+
/* merge output styles */
#define XDL_MERGE_DIFF3 0x8000
#define XDL_MERGE_STYLE_MASK 0x8000
@@ -108,9 +114,16 @@ long xdl_mmfile_size(mmfile_t *mmf);
int xdl_diff(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
xdemitconf_t const *xecfg, xdemitcb_t *ecb);
+typedef struct s_xmparam {
+ xpparam_t xpp;
+ int marker_size;
+} xmparam_t;
+
+#define DEFAULT_CONFLICT_MARKER_SIZE 7
+
int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1,
mmfile_t *mf2, const char *name2,
- xpparam_t const *xpp, int level, mmbuffer_t *result);
+ xmparam_t const *xmp, int flags, mmbuffer_t *result);
#ifdef __cplusplus
}
diff --git a/xdiff/xmerge.c b/xdiff/xmerge.c
index 1cb65a9516..8cbe45e675 100644
--- a/xdiff/xmerge.c
+++ b/xdiff/xmerge.c
@@ -145,13 +145,15 @@ static int xdl_orig_copy(xdfenv_t *xe, int i, int count, int add_nl, char *dest)
static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
xdfenv_t *xe2, const char *name2,
int size, int i, int style,
- xdmerge_t *m, char *dest)
+ xdmerge_t *m, char *dest, int marker_size)
{
- const int marker_size = 7;
int marker1_size = (name1 ? strlen(name1) + 1 : 0);
int marker2_size = (name2 ? strlen(name2) + 1 : 0);
int j;
+ if (marker_size <= 0)
+ marker_size = DEFAULT_CONFLICT_MARKER_SIZE;
+
/* Before conflicting part */
size += xdl_recs_copy(xe1, i, m->i1 - i, 0,
dest ? dest + size : NULL);
@@ -214,14 +216,20 @@ static int fill_conflict_hunk(xdfenv_t *xe1, const char *name1,
static int xdl_fill_merge_buffer(xdfenv_t *xe1, const char *name1,
xdfenv_t *xe2, const char *name2,
- xdmerge_t *m, char *dest, int style)
+ int favor,
+ xdmerge_t *m, char *dest, int style,
+ int marker_size)
{
int size, i;
for (size = i = 0; m; m = m->next) {
+ if (favor && !m->mode)
+ m->mode = favor;
+
if (m->mode == 0)
size = fill_conflict_hunk(xe1, name1, xe2, name2,
- size, i, style, m, dest);
+ size, i, style, m, dest,
+ marker_size);
else if (m->mode == 1)
size += xdl_recs_copy(xe1, i, m->i1 + m->chg1 - i, 0,
dest ? dest + size : NULL);
@@ -386,11 +394,13 @@ static int xdl_simplify_non_conflicts(xdfenv_t *xe1, xdmerge_t *m,
*/
static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, const char *name1,
xdfenv_t *xe2, xdchange_t *xscr2, const char *name2,
- int flags, xpparam_t const *xpp, mmbuffer_t *result) {
+ int flags, xmparam_t const *xmp, mmbuffer_t *result) {
xdmerge_t *changes, *c;
+ xpparam_t const *xpp = &xmp->xpp;
int i0, i1, i2, chg0, chg1, chg2;
int level = flags & XDL_MERGE_LEVEL_MASK;
int style = flags & XDL_MERGE_STYLE_MASK;
+ int favor = XDL_MERGE_FAVOR(flags);
if (style == XDL_MERGE_DIFF3) {
/*
@@ -522,26 +532,29 @@ static int xdl_do_merge(xdfenv_t *xe1, xdchange_t *xscr1, const char *name1,
}
/* output */
if (result) {
+ int marker_size = xmp->marker_size;
int size = xdl_fill_merge_buffer(xe1, name1, xe2, name2,
- changes, NULL, style);
+ favor, changes, NULL, style,
+ marker_size);
result->ptr = xdl_malloc(size);
if (!result->ptr) {
xdl_cleanup_merge(changes);
return -1;
}
result->size = size;
- xdl_fill_merge_buffer(xe1, name1, xe2, name2, changes,
- result->ptr, style);
+ xdl_fill_merge_buffer(xe1, name1, xe2, name2, favor, changes,
+ result->ptr, style, marker_size);
}
return xdl_cleanup_merge(changes);
}
int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1,
mmfile_t *mf2, const char *name2,
- xpparam_t const *xpp, int flags, mmbuffer_t *result) {
+ xmparam_t const *xmp, int flags, mmbuffer_t *result) {
xdchange_t *xscr1, *xscr2;
xdfenv_t xe1, xe2;
int status;
+ xpparam_t const *xpp = &xmp->xpp;
result->ptr = NULL;
result->size = 0;
@@ -574,7 +587,7 @@ int xdl_merge(mmfile_t *orig, mmfile_t *mf1, const char *name1,
} else {
status = xdl_do_merge(&xe1, xscr1, name1,
&xe2, xscr2, name2,
- flags, xpp, result);
+ flags, xmp, result);
}
xdl_free_script(xscr1);
xdl_free_script(xscr2);