2 files changed, 20 insertions, 0 deletions
diff --git a/src/shared/install.c b/src/shared/install.c
index f78cc814e5..b5453adeee 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -2052,6 +2052,25 @@ int unit_file_get_state(
         return unit_file_lookup_state(scope, &paths, name, ret);
 }
 
+int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) {
+        _cleanup_(install_context_done) InstallContext c = {};
+        int r;
+
+        assert(paths);
+        assert(name);
+
+        if (!unit_name_is_valid(name, UNIT_NAME_ANY))
+                return -EINVAL;
+
+        r = install_info_discover(scope, &c, paths, name, 0, NULL);
+        if (r == -ENOENT)
+                return 0;
+        if (r < 0)
+                return r;
+
+        return 1;
+}
+
 int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) {
         _cleanup_strv_free_ char **files = NULL;
         char **p;
diff --git a/src/shared/install.h b/src/shared/install.h
index 578664dd48..c57c23934b 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -139,6 +139,7 @@ int unit_file_add_dependency(UnitFileScope scope, bool runtime, const char *root
 
 int unit_file_lookup_state(UnitFileScope scope, const LookupPaths *paths, const char *name, UnitFileState *ret);
 int unit_file_get_state(UnitFileScope scope, const char *root_dir, const char *filename, UnitFileState *ret);
+int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name);
 
 int unit_file_get_list(UnitFileScope scope, const char *root_dir, Hashmap *h);
 Hashmap* unit_file_list_free(Hashmap *h);