make actions always execute regardless of files existing

main.cc

@@ -108,7 +108,7 @@ struct ObState {
 
         Rule(): target(), deps(), func(nullptr), action(false) {}
         Rule(const Rule &r): target(r.target), deps(r.deps), func(r.func),
-                             action(false) {
+                             action(r.action) {
             cscript::bcode_ref(func);
         }
         ~Rule() { cscript::bcode_unref(func); }
@@ -200,16 +200,17 @@ struct ObState {
         int ret = wait_result([&rlist, &subdeps, &tname, this]() {
             return exec_list(rlist, subdeps, tname);
         });
-        if (!ret && ob_check_exec(tname, subdeps)) {
         Uint32 *func = nullptr;
+        bool act = false;
         for (auto &sr: rlist.iter()) {
             Rule &r = *sr.rule;
             if (r.func) {
                 func = r.func;
+                act = r.action;
                 break;
             }
         }
-            if (func) {
+        if ((!ret && (act || ob_check_exec(tname, subdeps))) && func) {
             StackedValue targetv, sourcev, sourcesv;
 
             targetv.id = cs.new_ident("target");
@@ -239,7 +240,6 @@ struct ObState {
 
             return cs.run_int(func);
         }
-        }
         return ret;
     }