luarocks: new infrastructure

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
[yann.morin.1998@free.fr: apply Thomas' comments]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

Config.in

@@ -217,6 +217,14 @@ config BR2_DEBIAN_MIRROR
 
 endif
 
+config BR2_LUAROCKS_MIRROR
+	string "LuaRocks mirror"
+	default "http://luarocks.org/repositories/rocks"
+	help
+	  LuaRocks repository.
+
+	  See http://luarocks.org
+
 endmenu
 
 config BR2_JLEVEL

Makefile

@@ -512,6 +512,7 @@ endif
 ifeq ($(BR2_PACKAGE_PYTHON_PYC_ONLY),y)
 	find $(TARGET_DIR)/usr/lib/ -name '*.py' -print0 | xargs -0 rm -f
 endif
+	rm -rf $(TARGET_DIR)/usr/lib/luarocks
 	$(STRIP_FIND_CMD) | xargs $(STRIPCMD) 2>/dev/null || true
 	if test -d $(TARGET_DIR)/lib/modules; then \
 		find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \

package/Makefile.in

@@ -371,5 +371,6 @@ include package/pkg-utils.mk
 include package/pkg-download.mk
 include package/pkg-autotools.mk
 include package/pkg-cmake.mk
+include package/pkg-luarocks.mk
 include package/pkg-python.mk
 include package/pkg-generic.mk

package/luarocks/luarocks.mk

@@ -40,3 +40,6 @@ define HOST_LUAROCKS_INSTALL_CMDS
 endef
 
 $(eval $(host-generic-package))
+
+LUAROCKS_RUN = LUA_PATH="$(HOST_DIR)/usr/share/lua/5.1/?.lua" \
+	$(HOST_DIR)/usr/bin/lua $(HOST_DIR)/usr/bin/luarocks

package/pkg-luarocks.mk

@@ -0,0 +1,82 @@
+################################################################################
+# LuaRocks package infrastructure
+# see http://luarocks.org/
+#
+# This file implements an infrastructure that eases development of
+# package .mk files for LuaRocks packages.
+# LuaRocks supports various build.type : builtin, make, cmake.
+# This luarocks infrastructure supports only the builtin mode,
+# the make & cmake modes could be directly handled by generic & cmake infrastructure.
+#
+# See the Buildroot documentation for details on the usage of this
+# infrastructure
+#
+# In terms of implementation, this LuaRocks infrastructure requires
+# the .mk file to only specify metadata informations about the
+# package: name, version, etc.
+#
+################################################################################
+
+################################################################################
+# inner-luarocks-package -- defines how the configuration, compilation and
+# installation of a LuaRocks package should be done, implements a few hooks to
+# tune the build process and calls the generic package infrastructure to
+# generate the necessary make targets
+#
+#  argument 1 is the lowercase package name
+#  argument 2 is the uppercase package name, including an HOST_ prefix
+#             for host packages
+#  argument 3 is the uppercase package name, without the HOST_ prefix
+#             for host packages
+#  argument 4 is the package directory prefix
+#  argument 5 is the type (target or host)
+################################################################################
+
+define inner-luarocks-package
+
+$(2)_BUILD_OPT		?=
+$(2)_SUBDIR		?= $(1)-$(shell echo "$($(3)_VERSION)" | sed -e "s/-[0-9]$$//")
+$(2)_ROCKSPEC		?= $(1)-$($(3)_VERSION).rockspec
+$(2)_SOURCE		?= $(1)-$($(3)_VERSION).src.rock
+$(2)_SITE		?= $(call qstrip,$(BR2_LUAROCKS_MIRROR))
+
+# Since we do not support host-luarocks-package, we know this is
+# a target package, and can just add the required dependencies
+$(2)_DEPENDENCIES	+= host-luarocks luainterpreter
+
+# $(2)_DEPENDENCIES are handled for configure step (too late)
+# but host-luarocks is required to do the extract
+$(1)-extract: host-luarocks
+
+#
+# Extract step
+#
+ifndef $(2)_EXTRACT_CMDS
+define $(2)_EXTRACT_CMDS
+	cd $$($(2)_DIR)/.. && \
+	 $$(LUAROCKS_RUN) unpack --force $(DL_DIR)/$$($(2)_SOURCE)
+endef
+endif
+
+#
+# Build/install step.
+#
+ifndef $(2)_INSTALL_TARGET_CMDS
+define $(2)_INSTALL_TARGET_CMDS
+	cd $$($(2)_SRCDIR) && \
+	 $$(LUAROCKS_RUN) make --deps-mode=none --keep $$($(2)_ROCKSPEC) $$($(2)_BUILD_OPT)
+endef
+endif
+
+# Call the generic package infrastructure to generate the necessary
+# make targets
+$(call inner-generic-package,$(1),$(2),$(3),$(4),$(5))
+
+endef
+
+################################################################################
+# luarocks-package -- the target generator macro for LuaRocks packages
+################################################################################
+
+luarocks-package = $(call inner-luarocks-package,$(call pkgname),$(call UPPERCASE,$(call pkgname)),$(call UPPERCASE,$(call pkgname)),$(call pkgparentdir),target)
+# host-luarocks-package not supported