4 files changed, 63 insertions, 0 deletions
diff --git a/include/check.h b/include/check.h
new file mode 100644
index 0000000..c43385b
--- /dev/null
+++ b/include/check.h
@@ -0,0 +1,24 @@
+/*
+	
+	pkgit - package it!
+	
+	Copyright (C) 2026 dacctal
+	This program is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 2 of the License, or
+	(at your option) any later version.
+	
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+	
+	You should have received a copy of the GNU General Public License
+	along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef PKGIT_CHECK_H
+#define PKGIT_CHECK_H
+void check(void);
+#endif
diff --git a/include/files.h b/include/files.h
index 24712e9..8054bd8 100644
--- a/include/files.h
+++ b/include/files.h
@@ -23,7 +23,11 @@
 
 #include <stdbool.h>
 
+#include "str.h"
+
 bool file_exists(const char *path);
 bool is_directory(const char *path);
+str cmd_out(const char *cmd);
+void cpdir(const char *src_path, const char *dst_path);
 
 #endif
diff --git a/include/is_updated.h b/include/is_updated.h
new file mode 100644
index 0000000..16f998f
--- /dev/null
+++ b/include/is_updated.h
@@ -0,0 +1,28 @@
+/*
+
+  pkgit - package it!
+
+  Copyright (C) 2026 dacctal
+  This program is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+  
+  You should have received a copy of the GNU General Public License
+  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef PKGIT_IS_UPDATED_H
+#define PKGIT_IS_UPDATED_H
+
+#include <stdbool.h>
+#include "str.h"
+bool is_updated(str *src);
+
+#endif
diff --git a/include/pkgit_lua.h b/include/pkgit_lua.h
index f5f86a1..eee5160 100644
--- a/include/pkgit_lua.h
+++ b/include/pkgit_lua.h
@@ -53,6 +53,9 @@ bool lua_try_function(lua_State *L, char *lua_file, char *fname);
 bool lua_try_table(lua_State *L, char *lua_file, char *tname);
 bool pkg_exists(str *name);
 str pkg_get_url(str *name);
+str bldit_getver(void);
+str bldit_pkg_getver(void);
+bool is_bldit_usable(void);
 
 // install
 void install_dependencies(lua_State *L);
@@ -64,4 +67,8 @@ bool bldit_uninstall(package_t *pkg);
 bool config_uninstall(package_t *pkg);
 void pkg_remove(package_t *pkg);
 
+// update
+void pkg_update(package_t *pkg);
+void all_update(void);
+
 #endif