Merge branch 'jc/diff-populate-filespec-size-only-fix'
"git diff --quiet" relies on the size field in diff_filespec to be
correctly populated, but diff_populate_filespec() helper function
made an incorrect short-cut when asked only to populate the size
field for paths that need to go through convert_to_git() (e.g. CRLF
conversion).
* jc/diff-populate-filespec-size-only-fix:
diff: do not short-cut CHECK_SIZE_ONLY check in diff_populate_filespec()
diff --git a/diff.c b/diff.c
index 051761b..a628ac3 100644
--- a/diff.c
+++ b/diff.c
@@ -2870,8 +2870,25 @@
s->should_free = 1;
return 0;
}
- if (size_only)
+
+ /*
+ * Even if the caller would be happy with getting
+ * only the size, we cannot return early at this
+ * point if the path requires us to run the content
+ * conversion.
+ */
+ if (size_only && !would_convert_to_git(s->path))
return 0;
+
+ /*
+ * Note: this check uses xsize_t(st.st_size) that may
+ * not be the true size of the blob after it goes
+ * through convert_to_git(). This may not strictly be
+ * correct, but the whole point of big_file_threshold
+ * and is_binary check being that we want to avoid
+ * opening the file and inspecting the contents, this
+ * is probably fine.
+ */
if ((flags & CHECK_BINARY) &&
s->size > big_file_threshold && s->is_binary == -1) {
s->is_binary = 1;
diff --git a/t/t4035-diff-quiet.sh b/t/t4035-diff-quiet.sh
index 461f4bb..2f1737f 100755
--- a/t/t4035-diff-quiet.sh
+++ b/t/t4035-diff-quiet.sh
@@ -152,4 +152,13 @@
test_expect_code 1 git diff --quiet
'
+test_expect_success 'git diff --quiet on a path that need conversion' '
+ echo "crlf.txt text=auto" >.gitattributes &&
+ printf "Hello\r\nWorld\r\n" >crlf.txt &&
+ git add .gitattributes crlf.txt &&
+
+ printf "Hello\r\nWorld\n" >crlf.txt &&
+ git diff --quiet crlf.txt
+'
+
test_done
