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Add sqlite function to compare versions of packages.
Vsevolod Stakhov committed 10 years ago
commit 3525e824a5b792a48ab0e4d98e2a2ab30ffbac93
parent 9687aec452af8dabf42eb4ca4053d3536b850634
1 file changed +55 -1
modified libpkg/pkgdb.c
@@ -220,6 +220,59 @@ pkgdb_myarch(sqlite3_context *ctx, int argc, sqlite3_value **argv)
	sqlite3_result_text(ctx, arch, strlen(arch), NULL);

}
+ 
static void
+ 
pkgdb_vercmp(sqlite3_context *ctx, int argc, sqlite3_value **argv)
+ 
{
+ 
	const char *op_str, *arg1, *arg2;
+ 
	enum pkg_dep_version_op op;
+ 
	int cmp;
+ 
	bool ret;
+
+ 
	if (argc != 3) {
+ 
		sqlite3_result_error(ctx, "Invalid usage of vercmp\n", -1);
+ 
		return;
+ 
	}
+
+ 
	op_str = sqlite3_value_text(argv[0]);
+ 
	arg1 = sqlite3_value_text(argv[1]);
+ 
	arg2 = sqlite3_value_text(argv[2]);
+
+ 
	if (op_str == NULL || arg1 == NULL || arg2 == NULL) {
+ 
		sqlite3_result_error(ctx, "Invalid usage of vercmp\n", -1);
+ 
		return;
+ 
	}
+
+ 
	op = pkg_deps_string_toop(op_str);
+ 
	cmp = pkg_version_cmp(arg1, arg2);
+
+ 
	switch(op) {
+ 
	case VERSION_ANY:
+ 
	default:
+ 
		ret = true;
+ 
		break;
+ 
	case VERSION_EQ:
+ 
		ret = (cmp == 0);
+ 
		break;
+ 
	case VERSION_GE:
+ 
		ret = (cmp >= 0);
+ 
		break;
+ 
	case VERSION_LE:
+ 
		ret = (cmp <= 0);
+ 
		break;
+ 
	case VERSION_GT:
+ 
		ret = (cmp > 0);
+ 
		break;
+ 
	case VERSION_LT:
+ 
		ret = (cmp < 0);
+ 
		break;
+ 
	case VERSION_NOT:
+ 
		ret = (cmp != 0);
+ 
		break;
+ 
	}
+
+ 
	sqlite3_result_int(ctx, ret);
+ 
}
+ 


static int

pkgdb_upgrade(struct pkgdb *db)

{
@@ -2622,7 +2675,8 @@ pkgdb_sqlcmd_init(sqlite3 *db, __unused const char **err,
	    pkgdb_regex, NULL, NULL);

	sqlite3_create_function(db, "split_version", 2, SQLITE_ANY|SQLITE_DETERMINISTIC, NULL,

	    pkgdb_split_version, NULL, NULL);
-
+ 
	sqlite3_create_function(db, "vercmp", 3, SQLITE_ANY|SQLITE_DETERMINISTIC, NULL,
+ 
	    pkgdb_vercmp, NULL, NULL);



	return SQLITE_OK;

}