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-rw-r--r--apply.c21
-rwxr-xr-xt/t4108-apply-threeway.sh45
2 files changed, 66 insertions, 0 deletions
diff --git a/apply.c b/apply.c
index 4ed4b27169..43a0aebf4e 100644
--- a/apply.c
+++ b/apply.c
@@ -3468,6 +3468,21 @@ static int load_preimage(struct apply_state *state,
return 0;
}
+static int resolve_to(struct image *image, const struct object_id *result_id)
+{
+ unsigned long size;
+ enum object_type type;
+
+ clear_image(image);
+
+ image->buf = read_object_file(result_id, &type, &size);
+ if (!image->buf || type != OBJ_BLOB)
+ die("unable to read blob object %s", oid_to_hex(result_id));
+ image->len = size;
+
+ return 0;
+}
+
static int three_way_merge(struct apply_state *state,
struct image *image,
char *path,
@@ -3479,6 +3494,12 @@ static int three_way_merge(struct apply_state *state,
mmbuffer_t result = { NULL };
int status;
+ /* resolve trivial cases first */
+ if (oideq(base, ours))
+ return resolve_to(image, theirs);
+ else if (oideq(base, theirs) || oideq(ours, theirs))
+ return resolve_to(image, ours);
+
read_mmblob(&base_file, base);
read_mmblob(&our_file, ours);
read_mmblob(&their_file, theirs);
diff --git a/t/t4108-apply-threeway.sh b/t/t4108-apply-threeway.sh
index 65147efdea..cc3aa3314a 100755
--- a/t/t4108-apply-threeway.sh
+++ b/t/t4108-apply-threeway.sh
@@ -230,4 +230,49 @@ test_expect_success 'apply with --3way --cached and conflicts' '
test_cmp expect.diff actual.diff
'
+test_expect_success 'apply binary file patch' '
+ git reset --hard main &&
+ cp "$TEST_DIRECTORY/test-binary-1.png" bin.png &&
+ git add bin.png &&
+ git commit -m "add binary file" &&
+
+ cp "$TEST_DIRECTORY/test-binary-2.png" bin.png &&
+
+ git diff --binary >bin.diff &&
+ git reset --hard &&
+
+ # Apply must succeed.
+ git apply bin.diff
+'
+
+test_expect_success 'apply binary file patch with 3way' '
+ git reset --hard main &&
+ cp "$TEST_DIRECTORY/test-binary-1.png" bin.png &&
+ git add bin.png &&
+ git commit -m "add binary file" &&
+
+ cp "$TEST_DIRECTORY/test-binary-2.png" bin.png &&
+
+ git diff --binary >bin.diff &&
+ git reset --hard &&
+
+ # Apply must succeed.
+ git apply --3way --index bin.diff
+'
+
+test_expect_success 'apply full-index patch with 3way' '
+ git reset --hard main &&
+ cp "$TEST_DIRECTORY/test-binary-1.png" bin.png &&
+ git add bin.png &&
+ git commit -m "add binary file" &&
+
+ cp "$TEST_DIRECTORY/test-binary-2.png" bin.png &&
+
+ git diff --full-index >bin.diff &&
+ git reset --hard &&
+
+ # Apply must succeed.
+ git apply --3way --index bin.diff
+'
+
test_done