add: fixes to installing non-repository package

make sure cache is enabled on non-permanent rootfs setups.
some optimizations and fixes too.

src/add.c

@@ -116,17 +116,27 @@ static int add_main(void *ctx, int argc, char **argv)
 		struct apk_dependency dep;
 
 		if (strstr(argv[i], ".apk") != NULL) {
-			struct apk_package *pkg;
+			struct apk_package *pkg = NULL;
 			struct apk_sign_ctx sctx;
 
-			apk_sign_ctx_init(&sctx, APK_SIGN_VERIFY, NULL);
+			if (!apk_db_cache_active(&db) &&
+			    !apk_db_permanent(&db) &&
+			    !(apk_flags & APK_FORCE)) {
+				apk_error("Use --force or enable package "
+					  "caching to install non-repository "
+					  "packages.");
+				goto err;
+			}
+
+			/* FIXME: should verify the package too */
+			apk_sign_ctx_init(&sctx, APK_SIGN_GENERATE, NULL);
 			r = apk_pkg_read(&db, argv[i], &sctx, &pkg);
 			apk_sign_ctx_free(&sctx);
 			if (r != 0) {
 				apk_error("%s: %s", argv[i], apk_error_str(r));
 				goto err;
-			}
 
+			}
 			apk_dep_from_pkg(&dep, &db, pkg);
 		} else {
 			r = apk_dep_from_blob(&dep, &db, APK_BLOB_STR(argv[i]));

src/apk_database.h

@@ -134,6 +134,7 @@ int apk_db_open(struct apk_database *db, const char *root, unsigned int flags);
 int apk_db_write_config(struct apk_database *db);
 void apk_db_close(struct apk_database *db);
 int apk_db_cache_active(struct apk_database *db);
+int apk_db_permanent(struct apk_database *db);
 
 struct apk_package *apk_db_pkg_add(struct apk_database *db, struct apk_package *pkg);
 struct apk_package *apk_db_get_pkg(struct apk_database *db, struct apk_checksum *csum);

src/database.c

@@ -941,6 +941,17 @@ int apk_db_cache_active(struct apk_database *db)
 	return db->cache_dir != apk_static_cache_dir;
 }
 
+int apk_db_permanent(struct apk_database *db)
+{
+	struct stat st;
+
+	if (fstat(db->root_fd, &st) != 0)
+		return 0;
+	if (major(st.st_dev) == 0)
+		return 0;
+	return 1;
+}
+
 struct apk_package *apk_db_get_pkg(struct apk_database *db,
 				   struct apk_checksum *csum)
 {

src/package.c

@@ -181,7 +181,7 @@ void apk_dep_from_pkg(struct apk_dependency *dep, struct apk_database *db,
 		      struct apk_package *pkg)
 {
 	*dep = (struct apk_dependency) {
-		.name = apk_db_get_name(db, APK_BLOB_STR(pkg->name->name)),
+		.name = pkg->name,
 		.version = pkg->version,
 		.result_mask = APK_VERSION_EQUAL,
 	};
@@ -735,7 +735,7 @@ int apk_pkg_read(struct apk_database *db, const char *file,
 	ctx.pkg = apk_db_pkg_add(db, ctx.pkg);
 	if (pkg != NULL)
 		*pkg = ctx.pkg;
-	r = 0;
+	return 0;
 err:
 	apk_pkg_free(ctx.pkg);
 	return r;