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authorJunio C Hamano <gitster@pobox.com>2016-02-26 21:37:14 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-02-26 21:37:14 (GMT)
commit18b26b18c50637eaa8fb1ae5f42fd94c8ac99507 (patch)
treead35f5f2b5bf669f4d81798e107b8ded40393fdb
parentdede29612a723a7da9f489fecbdf02500a018430 (diff)
parent907681e940d095a0ab96756a8cddfd4f63cd71e1 (diff)
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Merge branch 'jk/no-diff-emit-common'
"git merge-tree" used to mishandle "both sides added" conflict with its own "create a fake ancestor file that has the common parts of what both sides have added and do a 3-way merge" logic; this has been updated to use the usual "3-way merge with an empty blob as the fake common ancestor file" approach used in the rest of the system. * jk/no-diff-emit-common: xdiff: drop XDL_EMIT_COMMON merge-tree: drop generate_common strategy merge-one-file: use empty blob for add/add base
-rwxr-xr-xgit-merge-one-file.sh3
-rw-r--r--merge-blobs.c38
-rw-r--r--xdiff/xdiff.h1
-rw-r--r--xdiff/xemit.c18
4 files changed, 3 insertions, 57 deletions
diff --git a/git-merge-one-file.sh b/git-merge-one-file.sh
index cdc02af..424b034 100755
--- a/git-merge-one-file.sh
+++ b/git-merge-one-file.sh
@@ -120,8 +120,7 @@ case "${1:-.}${2:-.}${3:-.}" in
case "$1" in
'')
echo "Added $4 in both, but differently."
- orig=$(git-unpack-file $2)
- create_virtual_base "$orig" "$src2"
+ orig=$(git-unpack-file e69de29bb2d1d6434b8b29ae775ad8c2e48c5391)
;;
*)
echo "Auto-merging $4"
diff --git a/merge-blobs.c b/merge-blobs.c
index ddca601..9b6eac2 100644
--- a/merge-blobs.c
+++ b/merge-blobs.c
@@ -48,40 +48,6 @@ static void *three_way_filemerge(const char *path, mmfile_t *base, mmfile_t *our
return res.ptr;
}
-static int common_outf(void *priv_, mmbuffer_t *mb, int nbuf)
-{
- int i;
- mmfile_t *dst = priv_;
-
- for (i = 0; i < nbuf; i++) {
- memcpy(dst->ptr + dst->size, mb[i].ptr, mb[i].size);
- dst->size += mb[i].size;
- }
- return 0;
-}
-
-static int generate_common_file(mmfile_t *res, mmfile_t *f1, mmfile_t *f2)
-{
- unsigned long size = f1->size < f2->size ? f1->size : f2->size;
- void *ptr = xmalloc(size);
- xpparam_t xpp;
- xdemitconf_t xecfg;
- xdemitcb_t ecb;
-
- memset(&xpp, 0, sizeof(xpp));
- xpp.flags = 0;
- memset(&xecfg, 0, sizeof(xecfg));
- xecfg.ctxlen = 3;
- xecfg.flags = XDL_EMIT_COMMON;
- ecb.outf = common_outf;
-
- res->ptr = ptr;
- res->size = 0;
-
- ecb.priv = res;
- return xdi_diff(f1, f2, &xpp, &xecfg, &ecb);
-}
-
void *merge_blobs(const char *path, struct blob *base, struct blob *our, struct blob *their, unsigned long *size)
{
void *res = NULL;
@@ -112,8 +78,8 @@ void *merge_blobs(const char *path, struct blob *base, struct blob *our, struct
if (fill_mmfile_blob(&common, base) < 0)
goto out_free_f2_f1;
} else {
- if (generate_common_file(&common, &f1, &f2) < 0)
- goto out_free_f2_f1;
+ common.ptr = xstrdup("");
+ common.size = 0;
}
res = three_way_filemerge(path, &common, &f1, &f2, size);
free_mmfile(&common);
diff --git a/xdiff/xdiff.h b/xdiff/xdiff.h
index c033991..4fb7e79 100644
--- a/xdiff/xdiff.h
+++ b/xdiff/xdiff.h
@@ -42,7 +42,6 @@ extern "C" {
#define XDF_IGNORE_BLANK_LINES (1 << 7)
#define XDL_EMIT_FUNCNAMES (1 << 0)
-#define XDL_EMIT_COMMON (1 << 1)
#define XDL_EMIT_FUNCCONTEXT (1 << 2)
#define XDL_MMB_READONLY (1 << 0)
diff --git a/xdiff/xemit.c b/xdiff/xemit.c
index 4266ada..993724b 100644
--- a/xdiff/xemit.c
+++ b/xdiff/xemit.c
@@ -120,21 +120,6 @@ static long def_ff(const char *rec, long len, char *buf, long sz, void *priv)
return -1;
}
-static int xdl_emit_common(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
- xdemitconf_t const *xecfg) {
- xdfile_t *xdf = &xe->xdf2;
- const char *rchg = xdf->rchg;
- long ix;
-
- for (ix = 0; ix < xdf->nrec; ix++) {
- if (rchg[ix])
- continue;
- if (xdl_emit_record(xdf, ix, "", ecb))
- return -1;
- }
- return 0;
-}
-
struct func_line {
long len;
char buf[80];
@@ -170,9 +155,6 @@ int xdl_emit_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
long funclineprev = -1;
struct func_line func_line = { 0 };
- if (xecfg->flags & XDL_EMIT_COMMON)
- return xdl_emit_common(xe, xscr, ecb, xecfg);
-
for (xch = xscr; xch; xch = xche->next) {
xche = xdl_get_hunk(&xch, xecfg);
if (!xch)