diff --git a/diff.c b/diff.c index 340d878f02..095a238636 100644 --- a/diff.c +++ b/diff.c @@ -1771,8 +1771,14 @@ static void emit_binary_diff(FILE *file, mmfile_t *one, mmfile_t *two, char *pre static void diff_filespec_load_driver(struct diff_filespec *one) { - if (!one->driver) + /* Use already-loaded driver */ + if (one->driver) + return; + + if (S_ISREG(one->mode)) one->driver = userdiff_find_by_path(one->path); + + /* Fallback to default settings */ if (!one->driver) one->driver = userdiff_find_by_name("default"); } @@ -1820,8 +1826,7 @@ struct userdiff_driver *get_textconv(struct diff_filespec *one) { if (!DIFF_FILE_VALID(one)) return NULL; - if (!S_ISREG(one->mode)) - return NULL; + diff_filespec_load_driver(one); if (!one->driver->textconv) return NULL; diff --git a/t/t4011-diff-symlink.sh b/t/t4011-diff-symlink.sh index 6f6948925f..408a19c4c2 100755 --- a/t/t4011-diff-symlink.sh +++ b/t/t4011-diff-symlink.sh @@ -88,4 +88,30 @@ test_expect_success SYMLINKS \ test_must_fail git diff --no-index pinky brain > output 2> output.err && grep narf output && ! grep error output.err' + +test_expect_success SYMLINKS 'setup symlinks with attributes' ' + echo "*.bin diff=bin" >>.gitattributes && + echo content >file.bin && + ln -s file.bin link.bin && + git add -N file.bin link.bin +' + +cat >expect <<'EOF' +diff --git a/file.bin b/file.bin +index e69de29..d95f3ad 100644 +Binary files a/file.bin and b/file.bin differ +diff --git a/link.bin b/link.bin +index e69de29..dce41ec 120000 +--- a/link.bin ++++ b/link.bin +@@ -0,0 +1 @@ ++file.bin +\ No newline at end of file +EOF +test_expect_success SYMLINKS 'symlinks do not respect userdiff config by path' ' + git config diff.bin.binary true && + git diff file.bin link.bin >actual && + test_cmp expect actual +' + test_done