commit 405a764ee602920b95cbb4a7cb4410f1b78efea7
from: Stefan Sperling <stsp@stsp.name>
date: Thu Sep 13 22:30:38 2018 UTC

don't display blob IDs twice when diffing blobs directly

commit - 3b8ef1a831c223c2baf34c97f4d4e396bb86bd4a
commit + 405a764ee602920b95cbb4a7cb4410f1b78efea7
blob - e750f2fd9ab0916ec8f1fc2a475b912b12e1ae21
blob + 39132fae6539fc190627024b2f89961b325613fa
--- lib/diff.c
+++ lib/diff.c
@@ -101,8 +101,10 @@ diff_blobs(struct got_blob_object *blob1, struct got_b
 	args.diff_context = 3;
 	flags |= D_PROTOTYPE;
 
-	fprintf(outfile, "blob - %s\n", idstr1);
-	fprintf(outfile, "blob + %s\n", idstr2);
+	if (label1 && strcmp(label1, idstr1) != 0)
+		fprintf(outfile, "blob - %s\n", idstr1);
+	if (label2 && strcmp(label2, idstr2) != 0)
+		fprintf(outfile, "blob + %s\n", idstr2);
 
 	err = got_diffreg(&res, f1, f2, flags, &args, &ds, outfile, changes);
 done:
blob - 7d27483bd79f843397f7c9f77dc6b621a614ce4c
blob + 9b48c7f0646cc49fe6736800f2314b8f09d3bbe3
--- regress/repository/repository_test.c
+++ regress/repository/repository_test.c
@@ -312,8 +312,6 @@ repo_diff_blob(const char *repo_path)
 	size_t len;
 	const char delim[3] = {'\0', '\0', '\0'};
 	const char *expected_output[] = {
-		"blob - 141f5fdc96126c1f4195558560a3c915e3d9b4c3",
-		"blob + de7eb21b21c7823a753261aadf7cba35c9580fbf",
 		"--- 141f5fdc96126c1f4195558560a3c915e3d9b4c3",
 		"+++ de7eb21b21c7823a753261aadf7cba35c9580fbf",
 		"@@ -1,10 +1,10 @@",