Migrate code to git_filter_blob_contents.

Also removes the unnecessary check for filter 
length, since git_filters_apply does the right 
thing when there are none, and it's more efficient
than this.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/filter.c b/src/filter.c
index aa95e0267..ecdc809a4 100644
--- a/src/filter.c
+++ b/src/filter.c
@@ -11,6 +11,7 @@
 #include "filter.h"
 #include "repository.h"
 #include "git2/config.h"
+#include "blob.h"
 
 /* Tweaked from Core Git. I wonder what we could use this for... */
 void git_text_gather_stats(git_text_stats *stats, const git_buf *text)
@@ -163,3 +164,35 @@ int git_filters_apply(git_buf *dest, git_buf *source, git_vector *filters)
 
 	return 0;
 }
+
+static int unfiltered_blob_contents(git_buf *out, git_repository *repo, const git_oid *blob_id)
+{
+	int retcode = GIT_ERROR;
+	git_blob *blob;
+
+	if (!(retcode = git_blob_lookup(&blob, repo, blob_id)))
+		retcode = git_blob__getbuf(out, blob);
+
+	return retcode;
+}
+
+int git_filter_blob_contents(git_buf *out, git_repository *repo, const git_oid *oid, const char *path)
+{
+	int retcode = GIT_ERROR;
+
+	git_buf unfiltered = GIT_BUF_INIT;
+	if (!unfiltered_blob_contents(&unfiltered, repo, oid)) {
+		git_vector filters = GIT_VECTOR_INIT;
+		if (git_filters_load(&filters,
+									repo, path, GIT_FILTER_TO_WORKTREE) >= 0) {
+			git_buf_clear(out);
+			retcode = git_filters_apply(out, &unfiltered, &filters);
+		}
+
+		git_filters_free(&filters);
+	}
+
+	git_buf_free(&unfiltered);
+	return retcode;
+}
+