blob: introduce git_blob_filter

Provide a function to filter blobs that allows for more functionality
than the existing `git_blob_filtered_content` function.

1 files changed, 29 insertions, 4 deletions

diff --git a/src/blob.c b/src/blob.c
index 31e6ccf86..efc9fc884 100644
--- a/src/blob.c
+++ b/src/blob.c
@@ -400,25 +400,34 @@ int git_blob_is_binary(const git_blob *blob)
 	return git_buf_text_is_binary(&content);
 }
 
-int git_blob_filtered_content(
+int git_blob_filter(
 	git_buf *out,
 	git_blob *blob,
 	const char *path,
-	int check_for_binary_data)
+	git_blob_filter_options *given_opts)
 {
 	int error = 0;
 	git_filter_list *fl = NULL;
+	git_blob_filter_options opts = GIT_BLOB_FILTER_OPTIONS_INIT;
+	git_filter_flag_t flags = GIT_FILTER_DEFAULT;
 
 	assert(blob && path && out);
 
 	git_buf_sanitize(out);
 
-	if (check_for_binary_data && git_blob_is_binary(blob))
+	GIT_ERROR_CHECK_VERSION(
+		given_opts, GIT_BLOB_FILTER_OPTIONS_VERSION, "git_blob_filter_options");
+
+	if (given_opts != NULL)
+		memcpy(&opts, given_opts, sizeof(git_blob_filter_options));
+
+	if ((opts.flags & GIT_BLOB_FILTER_CHECK_FOR_BINARY) != 0 &&
+	    git_blob_is_binary(blob))
 		return 0;
 
 	if (!(error = git_filter_list_load(
 			&fl, git_blob_owner(blob), blob, path,
-			GIT_FILTER_TO_WORKTREE, GIT_FILTER_DEFAULT))) {
+			GIT_FILTER_TO_WORKTREE, flags))) {
 
 		error = git_filter_list_apply_to_blob(out, fl, blob);
 
@@ -428,6 +437,22 @@ int git_blob_filtered_content(
 	return error;
 }
 
+int git_blob_filtered_content(
+	git_buf *out,
+	git_blob *blob,
+	const char *path,
+	int check_for_binary_data)
+{
+	git_blob_filter_options opts = GIT_BLOB_FILTER_OPTIONS_INIT;
+
+	if (check_for_binary_data)
+		opts.flags |= GIT_BLOB_FILTER_CHECK_FOR_BINARY;
+	else
+		opts.flags &= ~GIT_BLOB_FILTER_CHECK_FOR_BINARY;
+
+	return git_blob_filter(out, blob, path, &opts);
+}
+
 /* Deprecated functions */
 
 int git_blob_create_frombuffer(