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drunken-octo-hipster/documentation/Modules.md

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Categories Module directory Makefile src luasrc lua htdocs root dist ipkg OpenWRT feed integration
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Categories

The LuCI modules are divided into several category directories, namely:

  • applications (Single applications or plugins for other modules or applications)
  • i18n (Translation files)
  • libs (Independent libraries)
  • modules (Collections of applications)
  • themes (Frontend themes)

Each module goes into a subdirectory of any of this category-directories.

Module directory

The contents of a module directory are as follows:

Makefile

This is the module's makefile. If the module just contains Lua sourcecode or resources then the following Makefile should suffice.

include ../../build/config.mk
include ../../build/module.mk

If you have C(++) code in your module your Makefile should at least contain the following things.

include ../../build/config.mk
include ../../build/gccconfig.mk
include ../../build/module.mk

compile:
    # Commands to compile and link your C-code
    # and to install them under the dist/ hierarchy

clean: luaclean
    # Commands to clean your compiled objects

src

The src directory is reserved for C sourcecode.

luasrc

luasrc contains all Lua sourcecode files. These will automatically be stripped or compiled depending on the Make target and are installed in the LuCI installation directory.

lua

lua is equivalent to luasrc but containing Lua files will be installed in the Lua document root.

htdocs

All files under htdocs will be copied to the document root of the target webserver.

root

All directories and files under root will be copied to the installation target as they are.

dist

dist is reserved for the builder to create a working installation tree that will represent the filesystem on the target machine. DO NOT put any files there as they will get deleted.

ipkg

ipkg contains IPKG package control files, like preinst'', ''posinst'', ''prerm'', ''postrm''. ''conffiles. See IPKG documentation for details.

OpenWRT feed integration

If you want to add your module to the LuCI OpenWRT feed you have to add several sections to the contrib/package/luci/Makefile.

For a Web UI applications this is:

A package description:

define Package/luci-app-YOURMODULE
  $(call Package/luci/webtemplate)
  DEPENDS+=+some-package +some-other-package
  TITLE:=SHORT DESCRIPTION OF YOURMODULE
endef

A package installation target:

define Package/luci-app-YOURMODULE/install
        $(call Package/luci/install/template,$(1),applications/YOURMODULE)
endef

A module build instruction:

ifneq ($(CONFIG_PACKAGE_luci-app-YOURMODULE),)
        PKG_SELECTED_MODULES+=applications/YOURMODULE
endif

A build package call:

$(eval $(call BuildPackage,luci-app-YOURMODULE))