package/php-lua: new package

The php-lua package provides a PHP extension that embeds the lua
interpreter and offers an OO-API to lua variables and functions.

https://pecl.php.net/package/lua

Based on initial work from Nicolas Carrier <nicolas.carrier@orolia.com>

Two patches are present and were retrieved from the following
upstream pull request in order to support PHP8:
https://github.com/laruence/php-lua/pull/47

Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

DEVELOPERS

@@ -1162,9 +1162,11 @@ F:	package/libdbi-drivers/
 F:	package/lua-augeas/
 F:	package/modsecurity2/
 F:	package/php-apcu/
+F:	package/php-lua/
 F:	support/testing/tests/package/test_dtbocfg.py
 F:	support/testing/tests/package/test_lua_augeas.py
 F:	support/testing/tests/package/test_php_apcu.py
+F:	support/testing/tests/package/test_php_lua.py
 
 N:	Hervé Codina <herve.codina@bootlin.com>
 F:	package/php-pecl-dbus/
@@ -2024,6 +2026,7 @@ F:	package/libdbi-drivers/
 F:	package/lua-augeas/
 F:	package/modsecurity2/
 F:	package/php-apcu/
+F:	package/php-lua/
 F:	package/php-pecl-dbus/
 F:	package/php-xdebug/
 F:	package/python-augeas/
@@ -2039,6 +2042,7 @@ F:	support/testing/tests/package/sample_python_unittest_xml_reporting.py
 F:	support/testing/tests/package/test_bmap_tools.py
 F:	support/testing/tests/package/test_php_apcu.py
 F:	support/testing/tests/package/test_php_pecl_dbus.py
+F:	support/testing/tests/package/test_php_lua.py
 F:	support/testing/tests/package/test_python_augeas.py
 F:	support/testing/tests/package/test_python_flask_expects_json.py
 F:	support/testing/tests/package/test_python_git.py

package/php-lua/0001-ZEND_ACC_ALLOW_STATIC-ZEND_ACC_STATIC-for-static-met.patch

@@ -0,0 +1,28 @@
+From fd775cedbb97b56f0d1b098a41519f4477f450c7 Mon Sep 17 00:00:00 2001
+From: cdosoftei <ciprian.dosoftei@gmail.com>
+Date: Mon, 10 Aug 2020 15:37:52 -0400
+Subject: [PATCH] ZEND_ACC_ALLOW_STATIC -> ZEND_ACC_STATIC for static method
+
+[Hervé: Taken from https://github.com/laruence/php-lua/pull/47 to fix
+PHP8 compatibility.]
+Signed-off-by: Herve Codina <herve.codina@bootlin.com>
+---
+ lua.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lua.c b/lua.c
+index b05f4ef..f2648ac 100755
+--- a/lua.c
++++ b/lua.c
+@@ -822,7 +822,7 @@ zend_function_entry lua_class_methods[] = {
+ 	PHP_ME(lua, include,			arginfo_lua_include, 	ZEND_ACC_PUBLIC)
+ 	PHP_ME(lua, call,				arginfo_lua_call,  		ZEND_ACC_PUBLIC)
+ 	PHP_ME(lua, assign,				arginfo_lua_assign,		ZEND_ACC_PUBLIC)
+-	PHP_ME(lua, getVersion,			NULL, 					ZEND_ACC_PUBLIC|ZEND_ACC_ALLOW_STATIC)
++	PHP_ME(lua, getVersion,			NULL, 					ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
+ 	PHP_ME(lua, registerCallback,	arginfo_lua_register, 	ZEND_ACC_PUBLIC)
+ 	PHP_MALIAS(lua, __call, call, 	arginfo_lua_call,		ZEND_ACC_PUBLIC)
+ 	PHP_FE_END
+-- 
+2.31.1
+

package/php-lua/0002-php8-explicitly-declare-arginfo.patch

@@ -0,0 +1,68 @@
+From 0f5132e09d970cacabcca3bab01405bc25b87d66 Mon Sep 17 00:00:00 2001
+From: cdosoftei <ciprian.dosoftei@gmail.com>
+Date: Tue, 11 Aug 2020 12:42:17 -0400
+Subject: [PATCH] php8: explicitly declare arginfo
+
+[Hervé: Taken from https://github.com/laruence/php-lua/pull/47 to fix
+PHP8 compatibility.]
+Signed-off-by: Herve Codina <herve.codina@bootlin.com>
+---
+ lua.c         | 7 +++++--
+ lua_closure.c | 5 ++++-
+ 2 files changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/lua.c b/lua.c
+index f2648ac..bbbd623 100755
+--- a/lua.c
++++ b/lua.c
+@@ -35,6 +35,9 @@ static zend_object_handlers lua_object_handlers;
+ /** {{{ ARG_INFO
+  *
+  */
++ZEND_BEGIN_ARG_INFO_EX(arginfo_void, 0, 0, 0)
++ZEND_END_ARG_INFO()
++
+ ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_call, 0, 0, 2)
+ 	ZEND_ARG_INFO(0, method)
+ 	ZEND_ARG_INFO(0, args)
+@@ -817,12 +820,12 @@ PHP_METHOD(lua, __construct) {
+  *
+  */
+ zend_function_entry lua_class_methods[] = {
+-	PHP_ME(lua, __construct,		NULL,  					ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
++	PHP_ME(lua, __construct,		arginfo_void,				ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
+ 	PHP_ME(lua, eval,          		arginfo_lua_eval,  		ZEND_ACC_PUBLIC)
+ 	PHP_ME(lua, include,			arginfo_lua_include, 	ZEND_ACC_PUBLIC)
+ 	PHP_ME(lua, call,				arginfo_lua_call,  		ZEND_ACC_PUBLIC)
+ 	PHP_ME(lua, assign,				arginfo_lua_assign,		ZEND_ACC_PUBLIC)
+-	PHP_ME(lua, getVersion,			NULL, 					ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
++	PHP_ME(lua, getVersion,			arginfo_void,				ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
+ 	PHP_ME(lua, registerCallback,	arginfo_lua_register, 	ZEND_ACC_PUBLIC)
+ 	PHP_MALIAS(lua, __call, call, 	arginfo_lua_call,		ZEND_ACC_PUBLIC)
+ 	PHP_FE_END
+diff --git a/lua_closure.c b/lua_closure.c
+index 50ef039..b0f6780 100644
+--- a/lua_closure.c
++++ b/lua_closure.c
+@@ -39,6 +39,9 @@ static zend_object_handlers lua_closure_handlers;
+ /** {{{ ARG_INFO
+  *
+  */
++ZEND_BEGIN_ARG_INFO_EX(arginfo_void, 0, 0, 0)
++ZEND_END_ARG_INFO()
++
+ ZEND_BEGIN_ARG_INFO_EX(arginfo_lua_invoke, 0, 0, 1)
+ 	ZEND_ARG_INFO(0, arg)
+ 	ZEND_ARG_INFO(0, ...)
+@@ -145,7 +148,7 @@ PHP_METHOD(lua_closure, invoke) {
+ /* {{{ lua_class_methods[]
+  */
+ zend_function_entry lua_closure_methods[] = {
+-	PHP_ME(lua_closure, __construct,		NULL,  					ZEND_ACC_PRIVATE|ZEND_ACC_CTOR)
++	PHP_ME(lua_closure, __construct,		arginfo_void,				ZEND_ACC_PRIVATE|ZEND_ACC_CTOR)
+ 	PHP_ME(lua_closure, invoke,				arginfo_lua_invoke,  	ZEND_ACC_PUBLIC)
+ 	PHP_MALIAS(lua_closure, __invoke, invoke, arginfo_lua_invoke,	ZEND_ACC_PUBLIC)
+ 	PHP_FE_END
+-- 
+2.31.1
+

package/php-lua/Config.in

@@ -0,0 +1,8 @@
+config BR2_PACKAGE_PHP_LUA
+	bool "php-lua"
+	depends on BR2_PACKAGE_HAS_LUAINTERPRETER
+	help
+	  This extension embeds the lua interpreter and offers an
+	  OO-API to lua variables and functions.
+
+	  https://pecl.php.net/package/lua

package/php-lua/php-lua.hash

@@ -0,0 +1,2 @@
+sha256  86545e1e09b79e3693dd93f2a5a8f15ea161b5a1928f315c7a27107744ee8772  lua-2.0.7.tgz
+sha256  b6e00df9cb3b91977c0d64a7c4db48cb6f5041f6eeda6583c236775f70a35b78  LICENSE

package/php-lua/php-lua.mk

@@ -0,0 +1,39 @@
+################################################################################
+#
+# php-lua
+#
+################################################################################
+
+PHP_LUA_VERSION = 2.0.7
+PHP_LUA_SITE = http://pecl.php.net/get
+PHP_LUA_SOURCE = lua-$(PHP_LUA_VERSION).tgz
+PHP_LUA_LICENSE = PHP-3.01
+PHP_LUA_LICENSE_FILES = LICENSE
+PHP_LUA_DEPENDENCIES = php luainterpreter host-autoconf host-pkgconf
+
+PHP_LUA_CONF_OPTS = \
+	--with-php-config=$(STAGING_DIR)/usr/bin/php-config \
+	--with-lua=$(STAGING_DIR)/usr
+
+# The php-lua package uses the following code to search for the lua library
+#      if test "$PHP_LUA_VERSION" != "yes" -a "$PHP_LUA_VERSION" != "no"; then
+#        LUA_LIB_SUFFIX=lua$PHP_LUA_VERSION
+#      else
+#        LUA_LIB_SUFFIX=lua
+#      fi
+#      LUA_LIB_NAME=lib$LUA_LIB_SUFFIX
+# luajit library name is libluajit-x.y with x.y the api version.
+# In order to use luajit, we use jit-x.y as "lua-version".
+ifeq ($(BR2_PACKAGE_LUAJIT),y)
+PHP_LUA_CONF_OPTS += --with-lua-version=jit-$(LUAINTERPRETER_ABIVER)
+endif
+
+define PHP_LUA_PHPIZE
+	(cd $(@D); \
+		PHP_AUTOCONF=$(HOST_DIR)/usr/bin/autoconf \
+		PHP_AUTOHEADER=$(HOST_DIR)/usr/bin/autoheader \
+		$(STAGING_DIR)/usr/bin/phpize)
+endef
+PHP_LUA_PRE_CONFIGURE_HOOKS += PHP_LUA_PHPIZE
+
+$(eval $(autotools-package))

support/testing/tests/package/test_php_lua.py

@@ -0,0 +1,62 @@
+import os
+
+import infra.basetest
+
+
+class TestPhpLuaLua(infra.basetest.BRTest):
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        """
+        BR2_PACKAGE_LUA=y
+        BR2_PACKAGE_PHP=y
+        BR2_PACKAGE_PHP_SAPI_CLI=y
+        BR2_PACKAGE_PHP_LUA=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(arch="armv5",
+                           kernel="builtin",
+                           options=["-initrd", img])
+        self.emulator.login()
+
+        self.assertRunOk("mkdir /etc/php.d")
+        self.assertRunOk("echo 'extension=lua.so' > /etc/php.d/lua.ini")
+
+        output, exit_code = self.emulator.run("php --ri lua | sed '/^$/d'")
+        self.assertEqual(exit_code, 0)
+        self.assertEqual(output[0], "lua")
+        self.assertEqual(output[1], "lua support => enabled")
+        # Do not check the version value in order to avoid a test failure when
+        # bumping package version.
+        self.assertEqual(output[2][0:25], "lua extension version => ")
+
+class TestPhpLuaLuajit(infra.basetest.BRTest):
+    config = infra.basetest.BASIC_TOOLCHAIN_CONFIG + \
+        """
+        BR2_PACKAGE_LUAJIT=y
+        BR2_PACKAGE_PHP=y
+        BR2_PACKAGE_PHP_SAPI_CLI=y
+        BR2_PACKAGE_PHP_LUA=y
+        BR2_TARGET_ROOTFS_CPIO=y
+        # BR2_TARGET_ROOTFS_TAR is not set
+        """
+
+    def test_run(self):
+        img = os.path.join(self.builddir, "images", "rootfs.cpio")
+        self.emulator.boot(arch="armv5",
+                           kernel="builtin",
+                           options=["-initrd", img])
+        self.emulator.login()
+
+        self.assertRunOk("mkdir /etc/php.d")
+        self.assertRunOk("echo 'extension=lua.so' > /etc/php.d/lua.ini")
+
+        output, exit_code = self.emulator.run("php --ri lua | sed '/^$/d'")
+        self.assertEqual(exit_code, 0)
+        self.assertEqual(output[0], "lua")
+        self.assertEqual(output[1], "lua support => enabled")
+        # Do not check the version value in order to avoid a test failure when
+        # bumping package version.
+        self.assertEqual(output[2][0:25], "lua extension version => ")