#include "dir.h"
#include "diff.h"
#include "parse-options.h"
+#include "xdiff-interface.h"
+#include "ll-merge.h"
/*
* --check turns on checking that the working tree matches the
unsigned int is_copy:1;
unsigned int is_rename:1;
unsigned int recount:1;
+ unsigned int conflicted_threeway:1;
struct fragment *fragments;
char *result;
size_t resultsize;
char old_sha1_prefix[41];
char new_sha1_prefix[41];
struct patch *next;
+
+ /* three-way fallback result */
+ unsigned char threeway_stage[3][20];
};
static void free_fragment_list(struct fragment *list)
const unsigned char *ours,
const unsigned char *theirs)
{
- return -1; /* for now */
+ mmfile_t base_file, our_file, their_file;
+ mmbuffer_t result = { NULL };
+ int status;
+
+ read_mmblob(&base_file, base);
+ read_mmblob(&our_file, ours);
+ read_mmblob(&their_file, theirs);
+ status = ll_merge(&result, path,
+ &base_file, "base",
+ &our_file, "ours",
+ &their_file, "theirs", NULL);
+ free(base_file.ptr);
+ free(our_file.ptr);
+ free(their_file.ptr);
+ if (status < 0 || !result.ptr) {
+ free(result.ptr);
+ return -1;
+ }
+ clear_image(image);
+ image->buf = result.ptr;
+ image->len = result.size;
+
+ return status;
}
static int try_threeway(struct image *image, struct patch *patch,
unsigned char pre_sha1[20], post_sha1[20], our_sha1[20];
struct strbuf buf = STRBUF_INIT;
size_t len;
+ int status;
char *img;
struct image tmp_image;
if (get_sha1(patch->old_sha1_prefix, pre_sha1) ||
read_blob_object(&buf, pre_sha1, patch->old_mode))
return error("repository lacks the necessary blob to fall back on 3-way merge.");
+
+ fprintf(stderr, "Falling back to three-way merge...\n");
+
img = strbuf_detach(&buf, &len);
prepare_image(&tmp_image, img, len, 1);
/* Apply the patch to get the post image */
clear_image(&tmp_image);
/* in-core three-way merge between post and our using pre as base */
- return three_way_merge(image,
- patch->new_name, pre_sha1, our_sha1, post_sha1);
+ status = three_way_merge(image, patch->new_name,
+ pre_sha1, our_sha1, post_sha1);
+ if (status < 0) {
+ fprintf(stderr, "Failed to fall back on three-way merge...\n");
+ return status;
+ }
+
+ if (status) {
+ patch->conflicted_threeway = 1;
+ hashcpy(patch->threeway_stage[0], pre_sha1);
+ hashcpy(patch->threeway_stage[1], our_sha1);
+ hashcpy(patch->threeway_stage[2], post_sha1);
+ fprintf(stderr, "Applied patch to '%s' with conflicts.\n", patch->new_name);
+ } else {
+ fprintf(stderr, "Applied patch to '%s' cleanly.\n", patch->new_name);
+ }
+ return 0;
}
static int apply_data(struct patch *patch, struct stat *st, struct cache_entry *ce)