From f591c4724615b2fc1e4dc3d6bfe5da96a88eacbe Mon Sep 17 00:00:00 2001 From: Elijah Newren Date: Fri, 1 Jan 2021 02:34:44 +0000 Subject: [PATCH] merge-ort: copy and adapt merge_3way() from merge-recursive.c Take merge_3way() from merge-recursive.c and make slight adjustments based on different data structures (direct usage of object_id rather diff_filespec, separate pathnames which based on our careful interning of pathnames in opt->priv->paths can be compared with '!=' rather than 'strcmp'). Signed-off-by: Elijah Newren Signed-off-by: Junio C Hamano --- merge-ort.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-) diff --git a/merge-ort.c b/merge-ort.c index 2cfb7ffa3b..a59adb42aa 100644 --- a/merge-ort.c +++ b/merge-ort.c @@ -23,6 +23,7 @@ #include "diff.h" #include "diffcore.h" #include "dir.h" +#include "ll-merge.h" #include "object-store.h" #include "strmap.h" #include "tree.h" @@ -650,7 +651,58 @@ static int merge_3way(struct merge_options *opt, const int extra_marker_size, mmbuffer_t *result_buf) { - die("Not yet implemented."); + mmfile_t orig, src1, src2; + struct ll_merge_options ll_opts = {0}; + char *base, *name1, *name2; + int merge_status; + + ll_opts.renormalize = opt->renormalize; + ll_opts.extra_marker_size = extra_marker_size; + ll_opts.xdl_opts = opt->xdl_opts; + + if (opt->priv->call_depth) { + ll_opts.virtual_ancestor = 1; + ll_opts.variant = 0; + } else { + switch (opt->recursive_variant) { + case MERGE_VARIANT_OURS: + ll_opts.variant = XDL_MERGE_FAVOR_OURS; + break; + case MERGE_VARIANT_THEIRS: + ll_opts.variant = XDL_MERGE_FAVOR_THEIRS; + break; + default: + ll_opts.variant = 0; + break; + } + } + + assert(pathnames[0] && pathnames[1] && pathnames[2] && opt->ancestor); + if (pathnames[0] == pathnames[1] && pathnames[1] == pathnames[2]) { + base = mkpathdup("%s", opt->ancestor); + name1 = mkpathdup("%s", opt->branch1); + name2 = mkpathdup("%s", opt->branch2); + } else { + base = mkpathdup("%s:%s", opt->ancestor, pathnames[0]); + name1 = mkpathdup("%s:%s", opt->branch1, pathnames[1]); + name2 = mkpathdup("%s:%s", opt->branch2, pathnames[2]); + } + + read_mmblob(&orig, o); + read_mmblob(&src1, a); + read_mmblob(&src2, b); + + merge_status = ll_merge(result_buf, path, &orig, base, + &src1, name1, &src2, name2, + opt->repo->index, &ll_opts); + + free(base); + free(name1); + free(name2); + free(orig.ptr); + free(src1.ptr); + free(src2.ptr); + return merge_status; } static int handle_content_merge(struct merge_options *opt,