From c3e994737dc138282a034f6540b81982c0d07657 Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Fri, 15 Oct 2010 21:06:36 +0000
Subject: lua: initial db_open

so far we just parse the db options
---
 src/lua-apk.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

(limited to 'src')

diff --git a/src/lua-apk.c b/src/lua-apk.c
index efd7c3e..4bb5796 100644
--- a/src/lua-apk.c
+++ b/src/lua-apk.c
@@ -5,12 +5,34 @@
 #include "apk_defines.h"
 #include "apk_version.h"
 #include "apk_blob.h"
+#include "apk_database.h"
 
 #define LIBNAME "apk"
 
 int apk_verbosity;
 unsigned int apk_flags;
 
+struct flagmap {
+	const char *name;
+	int flag;
+};
+
+struct flagmap opendb_flagmap[] = {
+	{"read", 		APK_OPENF_READ},
+	{"write", 		APK_OPENF_WRITE},
+	{"create", 		APK_OPENF_CREATE},
+	{"no_installed",	APK_OPENF_NO_INSTALLED},
+	{"no_scripts",		APK_OPENF_NO_SCRIPTS},
+	{"no_world",		APK_OPENF_NO_WORLD},
+	{"no_sys_repos",	APK_OPENF_NO_SYS_REPOS},
+	{"no_installed_repo",	APK_OPENF_NO_INSTALLED_REPO},
+	{"no_repos",		APK_OPENF_NO_REPOS},
+	{"no_state",		APK_OPENF_NO_STATE},
+	{"no_scripts",		APK_OPENF_NO_SCRIPTS},
+	{"no_world",		APK_OPENF_NO_WORLD},
+	{NULL, 0}
+};
+
 /* version_validate(verstr) */
 /* returns boolean */
 static int Pversion_validate(lua_State *L)
@@ -45,11 +67,63 @@ static int Pversion_is_less(lua_State *L)
 	return 1;
 }
 
+//static getfield(lua_State *L, const char *key)
+//{
+static const char *get_opt_string_field(lua_State *L, int index,
+				        const char *key, const char *def)
+{
+	const char *value;
+	lua_getfield(L, index, key);
+	value = luaL_optstring(L, -1, def);
+	lua_pop(L, 1);
+	return value;
+}
+
+static int get_opt_int_field(lua_State *L, int index, const char *key, int def)
+{
+	int value;
+	lua_getfield(L, index, key);
+	value = luaL_optinteger(L, -1, def);
+	lua_pop(L, 1);
+	return value;
+}
+
+static int get_boolean_field(lua_State *L, int index, const char *key)
+{
+	int value;
+	lua_getfield(L, index, key);
+	value = lua_toboolean(L, -1);
+	lua_pop(L, 1);
+	return value;
+}
+
+static int get_dbopts(lua_State *L, int i, struct apk_db_options *o)
+{
+	struct flagmap *f;
+	o->root = (char *)get_opt_string_field(L, i, "root", NULL);
+	o->repositories_file = (char *)get_opt_string_field(L, i, "repositories_file", NULL);
+	o->keys_dir = (char *)get_opt_string_field(L, i, "keys_dir", NULL);
+	o->lock_wait = get_opt_int_field(L, i, "lock_wait", 0);
+	for (f = opendb_flagmap; f->name != NULL; f++)
+		if (get_boolean_field(L, i, f->name))
+			o->open_flags |= f->flag;
+	return 0;
+}
+
+static int Papk_db_open(lua_State *L)
+{
+	struct apk_db_options opts;
+	memset(&opts, 0, sizeof(opts));
+	if (lua_istable(L, 1))
+		get_dbopts(L, 1, &opts);
+	return 0;
+}
 
 static const luaL_reg R[] = {
 	{"version_validate",	Pversion_validate},
 	{"version_compare",	Pversion_compare},
 	{"version_is_less",	Pversion_is_less},
+	{"db_open",		Papk_db_open},
 	{NULL,		NULL}
 };
 
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