index: Introduce git_index_has_conflicts()

include/git2/index.h

@@ -431,6 +431,13 @@ GIT_EXTERN(int) git_index_conflict_remove(git_index *index, const char *path);
  */
 GIT_EXTERN(void) git_index_conflict_cleanup(git_index *index);
 
+/**
+ * Determine if the index contains entries representing file conflicts.
+ *
+ * @return 1 if at least one conflict is found, 0 otherwise.
+ */
+GIT_EXTERN(int) git_index_has_conflicts(git_index *index);
+
 /**@}*/
 
 /** @name Resolve Undo (REUC) index entry manipulation.

src/index.c

@@ -959,6 +959,21 @@ void git_index_conflict_cleanup(git_index *index)
 	git_vector_remove_matching(&index->entries, index_conflicts_match);
 }
 
+int git_index_has_conflicts(git_index *index)
+{
+	unsigned int i;
+	git_index_entry *entry;
+
+	assert(index);
+
+	git_vector_foreach(&index->entries, i, entry) {
+		if (index_entry_stage(entry) > 0)
+			return 1;
+	}
+
+	return 0;
+}
+
 unsigned int git_index_reuc_entrycount(git_index *index)
 {
 	assert(index);

tests-clar/index/conflicts.c

@@ -180,8 +180,12 @@ void test_index_conflicts__remove_all_conflicts(void)
 
 	cl_assert(git_index_entrycount(repo_index) == 8);
 
+	cl_assert_equal_i(true, git_index_has_conflicts(repo_index));
+
 	git_index_conflict_cleanup(repo_index);
 
+	cl_assert_equal_i(false, git_index_has_conflicts(repo_index));
+
 	cl_assert(git_index_entrycount(repo_index) == 2);
 
 	for (i = 0; i < git_index_entrycount(repo_index); i++) {