path: root/Mk/bsd.lua.mk

#-*- mode: makefile; tab-width: 4; -*-
# ex:ts=4
#
# $FreeBSD$
#
# bsd.lua.mk - Support for Lua based ports.
#
# Created by: Alejandro Pulver <alepulver@FreeBSD.org>
#
# Please view me with 4 column tabs!
#
# The following variables can be defined in a port that uses the Lua library,
# tolua, Ruby bindings or related components like .lua modules (with run
# and/or build dependencies). It can be used after and/or before
# bsd.port.pre.mk, but Ruby components will only work if Ruby variables (e.g.
# USE_RUBY) are defined before it (this is a bsd.ruby.mk limitation), at least
# it is manually included.
# USE_LUA       - Set to the list of Lua versions that can be used by the
#                 port. The syntax allows the following elements:
#                 - Single version (e.g. "4.0").
#                 - Range of versions (e.g. "5.0-5.1"). Must be ascending.
#                 - Partial range: single version and upper (e.g. "5.0+").
#                 - Partial range: single version and lower (e.g. "5.1-").
#                 Multiple elements can be specified separated by spaces.
# USE_LUA_NOT   - Set to the list of Lua versions that can't be used by the
#                 port. In other words, it removes some versions from USE_LUA.
#                 If the latter is not defined, it will have the value of all
#                 the possible versions. The syntax is like USE_LUA.
# LUA_COMPS     - Set to the list of Lua components the port uses. Several
#                 components can be specified separated by spaces. By default
#                 it will have the value of "lua". Suffixes in the form ":xxx"
#                 may be added to the components to determine the dependency
#                 type.
#                 The available components are:
#                 lua           - The Lua library.
#                 tolua         - The tolua library (for 4.0-5.0).
#                 ruby          - The Ruby bindings for Lua (for 4.0-5.0).
#                 Other components (modules):
#                 5.0           - app, compat51, dfui, filename, gettext,
#                                 posix, pty, socket.
#                 5.1           - filename, gettext, posix, pty, socket.
#                 The available dependency types are:
#                 build         - Requires component for building.
#                 lib           - Requires component for building and running.
#                 run           - Requires component for running.
#                 If no suffix is present then "lib" will be used for "lua"
#                 4.0-5.0 and "ruby", "build" for lua 5.1 and "tolua" (they
#                 are static), all others default to "run".
# LUA_PREMK     - Define to determine version and define variables after
#                 <bsd.port.pre.mk> (in case the port needs to manually run
#                 the Lua program or the like).
# WANT_LUA      - Set to "yes" or a valid single version (no ranges, etc).
#                 In both cases it will detect the installed Lua components
#                 and add them to the variable HAVE_LUA. If a version is
#                 selected, HAVE_LUA will contain a list of components in the
#                 other case it will contain a list of "component-version"
#                 pairs (e.g. lua-4.0, tolua-5.1, etc).
#                 It has to be used before bsd.port.pre.mk.
# WANT_LUA_VER  - Set to the prefered Lua version for the port. It must be
#                 present in USE_LUA or missing in USE_LUA_NOT. This is
#                 overriden by the user variable WITH_LUA_VER if set. It can
#                 contain multiple versions in order of preference (last ones
#                 are tried first).
#
# The following variables are intended for the user and can be defined in
# make.conf.
# WITH_LUA_VER  - Define to the list of prefered versions in reverse order.
#
# The following variables are defined by this file, to be read from the port.
# HAVE_LUA      - The list of Lua components installed, if WANT_LUA was
#                 defined. The components will have version suffix if it was
#                 set to "yes".
# LUA_VER       - The Lua version that is going to be used (e.g. "5.1").
# LUA_VER_SH    - The Lua shared library major version (e.g. "1").
# LUA_VER_STR   - The Lua version without the dots (e.g. "51").
# LUA_PREFIX    - The prefix where Lua (and components) is installed.
#                 NOTE: please see comments below about its double function.
# LUA_SUBDIR    - The directory under bin/share/lib where Lua is installed.
#                 Also used by Lua ports (lang/lua*) to set LATEST_LINK.
# LUA_INCDIR    - The directory where Lua and tolua header files are installed.
# LUA_LIBDIR    - The directory where Lua and tolua libraries are installed.
# LUA_MODLIBDIR - The directory where Lua module libraries (.so) are installed.
# LUA_MODSHAREDIR
#               - The directory where Lua modules (.lua) are installed.
# LUA_PKGNAMEPREFIX
#               - The package name prefix used by Lua modules.
# LUA_CMD       - The path to the Lua interpreter.
# LUAC_CMD      - The path to the Lua compiler.
# TOLUA_CMD     - The path to the tolua program.
#
# Examples:
# - A port that needs Lua 4.0 and tolua (also 4.0) libraries (lua for building
#   and running and tolua for building).
#   USE_LUA=    4.0
#   LUA_COMPS=  lua tolua
# - A port that needs Ruby bindings for Lua 5.0 for building and running.
#   USE_LUA=    5.0
#   LUA_COMPS=  ruby
# - A port that needs tolua 5.0 or 5.1 for building.
#   USE_LUA=    5.0 5.1
#   LUA_COMPS=  tolua
# - A port that needs Lua version 5.0 or higher for building and running.
#   USE_LUA=    5.0+
# - A port that needs Lua of any version other than 5.1 for building and
#   running.
#   USE_LUA_NOT=5.1
#

LUA_Include_MAINTAINER= alepulver@FreeBSD.org

#
# Global definitions.
#

.if !defined(_LUA_Definitions_Done)
_LUA_Definitions_Done=  yes

# Common variables:
# _LUA_COMPS_ALL        - List of valid components.
# _LUA_DEP_TYPES_ALL    - List of valid dependency types.
# _LUA_VERS_ALL         - List of available Lua versions.
# _LUA_VERS_LISTS=      - Reverse lists preference order.
# _LUA_PLIST_ALL        - List of variables to be added to PLIST_SUB.
# _LUA_PLIST_DIR_ALL    - List of path variables (relative to ${LUA_PREFIX})
#                         to be added to PLIST_SUB.
#

_LUA_COMPS_ALL=         lua tolua ruby \
                        app compat51 dfui filename gettext posix pty socket
_LUA_DEP_TYPES_ALL=     build lib run
_LUA_VERS_ALL=          4.0 5.0 5.1
_LUA_PLIST_ALL=         LUA_VER LUA_VER_SH LUA_VER_STR LUA_PREFIX LUA_SUBDIR
_LUA_PLIST_DIR_ALL=     LUA_BINDIR LUA_INCDIR LUA_LIBDIR \
                        LUA_MODLIBDIR LUA_MODSHAREDIR
_LUA_VERS_LISTS=        WANT_LUA_VER WITH_LUA_VER _LUA_VER_INSTALLED

#
# Variables used to determine what is needed.
# _LUA_PORT_comp_ver    - Port directory.
# _LUA_LIB_comp_ver     - Name of the shared library (optional).
# _LUA_SHVER_comp_ver   - Shared library version (optional).
# _LUA_FILE_comp_ver    - File installed by that component.
# _LUA_DEPTYPE_comp_ver - Default dependency type.
#

_LUA_PORT_lua_4.0=      lang/lua4
_LUA_DEPTYPE_lua_4.0=   lib
_LUA_PORT_tolua_4.0=    lang/tolua4
_LUA_PORT_ruby_4.0=     lang/ruby-lua4

_LUA_PORT_lua_5.0=      lang/lua50
_LUA_DEPTYPE_lua_5.0=   lib
_LUA_PORT_tolua_5.0=    lang/tolua
_LUA_PORT_ruby_5.0=     lang/ruby-lua

_LUA_PORT_app_5.0=      devel/lua50-app
_LUA_PORT_compat51_5.0= devel/lua50-compat51
_LUA_FILE_compat51_5.0= ${LUA_MODSHAREDIR}/compat-5.1.lua
_LUA_PORT_dfui_5.0=     devel/lua50-dfui
_LUA_PORT_filename_5.0= devel/lua50-filename
_LUA_PORT_gettext_5.0=  devel/lua50-gettext
_LUA_PORT_posix_5.0=    devel/lua50-posix
_LUA_PORT_pty_5.0=      devel/lua50-pty
_LUA_PORT_socket_5.0=   net/lua50-luasocket

_LUA_PORT_lua_5.1=      lang/lua
_LUA_DEPTYPE_lua_5.1=   build

_LUA_PORT_filename_5.1= devel/lua-filename
_LUA_PORT_gettext_5.1=  devel/lua-gettext
_LUA_PORT_posix_5.1=    devel/lua-posix
_LUA_PORT_pty_5.1=      devel/lua-pty
_LUA_PORT_socket_5.1=   net/luasocket

.   for comp in ${_LUA_COMPS_ALL}
_LUA_COMP=              ${comp}
.       for ver in ${_LUA_VERS_ALL}
# XXX The hardcoded values here have to match LUA_* variables (later), and
# are here only to allow autodetection of installed versions.
.           if ${_LUA_COMP} == "lua"
_LUA_LIB_${comp}_${ver}=    lua-${ver}.${_LUA_SHVER_${comp}_${ver}}
_LUA_SHVER_${comp}_${ver}=  ${ver:C/[[:digit:]]\.([[:digit:]])/\1/}
_LUA_FILE_${comp}_${ver}=   ${LOCALBASE}/lib/lua${ver:S/.//g}/liblua.a
.           elif ${_LUA_COMP} == "tolua"
_LUA_FILE_${comp}_${ver}=   ${LOCALBASE}/lib/lua${ver:S/.//g}/libtolua.a
_LUA_DEPTYPE_${comp}_${ver}=build
.           elif ${_LUA_COMP} == "ruby"
_LUA_FILE_${comp}_${ver}=   ${RUBY_SITEARCHLIBDIR}/lua-${ver}.so
_LUA_DEPTYPE_${comp}_${ver}=lib
.           elif !defined(_LUA_FILE_${comp}_${ver})
_LUA_FILE_${comp}_${ver}=   ${LOCALBASE}/share/lua/${ver}/${comp}.lua
.           endif
.           if !defined(_LUA_DEPTYPE_${comp}_${ver})
_LUA_DEPTYPE_${comp}_${ver}=run
.           endif
.       endfor
.   endfor
.endif

#
# Check if we are going to determine the version.
#

.if !defined(_LUA_Version_Done) && (defined(_POSTMKINCLUDED) || \
    (defined(LUA_PREMK) && defined(BEFOREPORTMK) && \
    (defined(USE_LUA) || defined(USE_LUA_NOT))))
_LUA_Need_Version=          yes
.endif

#
# Check for present components.
#

# Requested by the user.

.if defined(WANT_LUA) && defined(BEFOREPORTMK)
_WANT_LUA=              ${WANT_LUA}
.endif

# Used for autodetection of installed versions.

.if defined(_LUA_Need_Version)
_WANT_LUA=              yes
.endif

.if defined(_WANT_LUA)
.   undef _HAVE_LUA
.   for __WANT_LUA in ${_WANT_LUA}
# Check if _WANT_LUA contains more than one word.
.       if defined(_HAVE_LUA)
IGNORE?=                selected multiple values for WANT_LUA: ${_WANT_LUA}
.       endif
_HAVE_LUA=              #
# Check for all versions.
.       if ${_WANT_LUA:L} == "yes"
.           for comp in ${_LUA_COMPS_ALL}
.               for ver in ${_LUA_VERS_ALL}
_LUA_COMP=              _LUA_FILE_${comp}_${ver}
.                   if defined(${_LUA_COMP}) && exists(${${_LUA_COMP}})
_HAVE_LUA+=             ${comp}-${ver}
.                   endif
.               endfor
.           endfor
# Check for a specific version.
.       elif ${_LUA_VERS_ALL:M${__WANT_LUA}} != ""
.           for comp in ${_LUA_COMPS_ALL}
.               if exists(${_LUA_FILE_${comp}_${__WANT_LUA}})
_HAVE_LUA+=             ${comp}
.               endif
.           endfor
.       else
IGNORE?=                selected an invalid value for WANT_LUA: ${__WANT_LUA}
.       endif
.   endfor
.endif      # _WANT_LUA

# Requested by the user.

.if defined(WANT_LUA) && defined(BEFOREPORTMK)
HAVE_LUA:=              ${_HAVE_LUA}
.endif

# Used for autodetection of installed versions.

.if defined(_LUA_Need_Version)
_LUA_VER_INSTALLED:=    ${_HAVE_LUA:Mlua-*:S/lua-//}
.endif

#
# Select Lua version.
#

.if defined(_LUA_Need_Version)
_LUA_Version_Done=      yes

#
# Basic component parsing (ignores dependency types).
#
# The variables used are:
# _LUA_COMP             - Component part.
# _LUA_COMPS_FINAL      - Final list of components.
#

# Detect duplicated components.

_LUA_COMPS_FINAL=       #
.for comp in ${LUA_COMPS}
_LUA_COMP=              ${comp:C/:([[:alpha:]]+)$//}
.   for __LUA_COMP in ${_LUA_COMP}
.       if ${_LUA_COMPS_ALL:M${__LUA_COMP}} == ""
IGNORE?=                selected an invalid Lua component: ${__LUA_COMP}
.       endif
.   endfor
.   for newcomp in ${_LUA_COMP}
.       if ${_LUA_COMPS_FINAL:M${newcomp}} == ""
_LUA_COMPS_FINAL+=      ${newcomp}
.       endif
.   endfor
.endfor

# Set defaults (if one isn't present).

USE_LUA?=               ${_LUA_VERS_ALL}
USE_LUA_NOT?=           #

#
# Make lists of valid and invalid versions.
#
# The following variables are used:
# _LUA_VER_CHECK        - If the version is a single one, express in a range.
# _LUA_VER_MIN          - Lower version of the range.
# _LUA_VER_MAX          - Higher version of the range.
# _LUA_VER_LIST         - List of requested versions.
# _LUA_VER_NOT_LIST     - List of disallowed versions.
# _LUA_VER_FINAL        - List of requested version without disallowed ones.
#

.for list in VER VER_NOT
_LUA_${list}_LIST=      #
.   for ver in ${USE_LUA${list:C/VER//}}
_LUA_VER_CHECK:=        ${ver:C/^([[:digit:]]+(\.[[:digit:]]+)*)$/\1-\1/}
_LUA_VER_MIN:=          ${_LUA_VER_CHECK:C/([[:digit:]]+(\.[[:digit:]]+)*)[-+].*/\1/}
_LUA_VER_MAX:=          ${_LUA_VER_CHECK:C/.*-([[:digit:]]+(\.[[:digit:]]+)*)/\1/}
# Minimum version not specified.
.       if ${_LUA_VER_MIN} == ${_LUA_VER_CHECK}
.           undef _LUA_VER_MIN
.           for v in ${_LUA_VERS_ALL}
_LUA_VER_MIN?=          ${v}
.           endfor
.       endif
# Maximum version not specified.
.       if ${_LUA_VER_MAX} == ${_LUA_VER_CHECK}
.           for v in ${_LUA_VERS_ALL}
_LUA_VER_MAX=           ${v}
.           endfor
.       endif
# Expand versions and add valid ones to each list.
.       for v in ${_LUA_VERS_ALL}
.           if ${_LUA_VER_MIN} <= ${v} && ${_LUA_VER_MAX} >= ${v} && \
               ${_LUA_${list}_LIST:M${v}} == ""
_LUA_${list}_LIST+=     ${v}
.           endif
.       endfor
.   endfor
.endfor

# Merge the lists into a single list of valid versions.

_LUA_VER_FINAL=         #
.for ver in ${_LUA_VER_LIST}
.   if ${_LUA_VER_NOT_LIST:M${ver}} == ""
_LUA_VER_FINAL+=        ${ver}
.   endif
.endfor

# Remove unusable installed versions.

.for ver in ${_LUA_VER_INSTALLED}
.   if ${_LUA_VER_FINAL:M${ver}} == ""
_LUA_VER_INSTALLED:=    ${_LUA_VER_INSTALLED:N${ver}}
.   endif
.endfor

# Check for a null version.

.if empty(_LUA_VER_FINAL)
IGNORE?=                selected a null or invalid Lua version
.endif

# Avoid versions which have unavailable components.

.for ver in ${_LUA_VER_FINAL}
.   for comp in ${_LUA_COMPS_FINAL}
.       if !defined(_LUA_PORT_${comp}_${ver})
_LUA_WRONG_COMPS+=      ${comp}
_LUA_WRONG_VERS+=       ${ver}
_LUA_VER_FINAL:=        ${_LUA_VER_FINAL:N${ver}}
.       endif
.   endfor
.endfor

.if empty(_LUA_VER_FINAL)
IGNORE?=                selected Lua versions (${_LUA_WRONG_VERS}) which do not have the selected components (${_LUA_WRONG_COMPS})
.endif

#
# Choose final version.
#

#
# Check for the following (in order):
# 1) WITH_LUA_VER       - User preference.
# 2) WANT_LUA_VER       - Port preference.
# 3) _LUA_VER_INSTALLED - Installed versions.
# 4) _LUA_VER_FINAL     - Available versions.
#

.for list in _LUA_VER_FINAL ${_LUA_VERS_LISTS}
.   if defined(${list})
.       for ver in ${${list}}
.           if ${_LUA_VER_FINAL:M${ver}} != ""
_LUA_VER=               ${ver}
.           endif
.       endfor
.   endif
.endfor

#
# Set variables.
#

# Version.
LUA_VER?=               ${_LUA_VER}
LUA_VER_SH?=            ${LUA_VER:C/[[:digit:]]\.([[:digit:]])/\1/}
LUA_VER_STR?=           ${LUA_VER:S/.//g}

# Package name.
LUA_PKGNAMEPREFIX?=     lua${LUA_VER_STR}-
LUA_SUBDIR?=            lua${LUA_VER_STR}

# Currently Lua ports (those which install Lua and modules) must either:
# 1. Have PORTNAME=lua and LATEST_LINK=${LUA_SUBDIR} (currently Lua ports).
# 2. Have PKGNAMEPREFIX=${LUA_PKGNAMEPREFIX} (currently Lua modules).
# 3. Have LUA_PREFIX?=${PREFIX} (currently none).
#
# FIXME: the correct solution to this problem could be either:
# 1. Create a lua*-config script, and make dependent ports use it.
# 2. Set in each port if it's a "Lua module", or just requires Lua.
#

.if (defined(PKGNAMEPREFIX) && ${PKGNAMEPREFIX} == ${LUA_PKGNAMEPREFIX}) || \
    (${PORTNAME} == "lua" && defined(LATEST_LINK) && \
    ${LATEST_LINK} == ${LUA_SUBDIR})
# For Lua and modules, which need to install in LUA_*DIR, respect PREFIX.
LUA_PREFIX?=            ${PREFIX}
.else
# For dependencies using LUA_{INC,LIB}DIR, use LOCALBASE as expected.
LUA_PREFIX?=            ${LOCALBASE}
.endif

# Paths.
LUA_BINDIR?=            ${LUA_PREFIX}/bin/${LUA_SUBDIR}
LUA_INCDIR?=            ${LUA_PREFIX}/include/${LUA_SUBDIR}
LUA_LIBDIR?=            ${LUA_PREFIX}/lib/${LUA_SUBDIR}
LUA_MODLIBDIR?=         ${LUA_PREFIX}/lib/lua/${LUA_VER}
LUA_MODSHAREDIR?=       ${LUA_PREFIX}/share/lua/${LUA_VER}

# Programs.
LUA_CMD?=               ${LUA_PREFIX}/bin/lua-${LUA_VER}
LUAC_CMD?=              ${LUA_PREFIX}/bin/luac-${LUA_VER}
TOLUA_CMD?=             ${LUA_PREFIX}/bin/tolua-${LUA_VER}

.endif      # _LUA_Need_Version

#
# Process components list and add dependencies, variables, etc.
#

.if defined(_POSTMKINCLUDED)

#
# Component parsing.
#
# The variables used are:
# _LUA_COMP             - Component part.
# _LUA_DEP_TYPE         - Dependency type part.
# _LUA_COMP_NEW         - Component + dependency type.
# _LUA_COMPS_FINAL      - Final list of components with dependency types.
#

# Default components.

LUA_COMPS?=             lua

# Detect invalid and duplicated components.

_LUA_COMPS_FINAL=       #
.for comp in ${LUA_COMPS}
_LUA_COMP=              ${comp:C/:([[:alpha:]]+)$//}
.   if ${_LUA_COMP} == ${comp}
_LUA_DEP_TYPE=          ${_LUA_DEPTYPE_${comp}_${_LUA_VER}}
.   else
_LUA_DEP_TYPE=          ${comp:C/.+:([[:alpha:]]+)$/\1/}
.   endif
_LUA_COMP_NEW=          ${_LUA_COMP}_${_LUA_DEP_TYPE}
.   for __LUA_COMP in ${_LUA_COMP}
.       if ${_LUA_COMPS_ALL:M${__LUA_COMP}} == ""
IGNORE?=                selected an invalid Lua component: ${__LUA_COMP}
.       endif
.   endfor
.   for __LUA_DEP_TYPE in ${_LUA_DEP_TYPE}
.       if ${_LUA_DEP_TYPES_ALL:M${__LUA_DEP_TYPE}} == ""
IGNORE?=                selected an invalid Lua dependency type: ${__LUA_DEP_TYPE}
.       endif
.   endfor
.   if !defined(_LUA_PORT_${_LUA_COMP}_${_LUA_VER})
IGNORE?=                selected a Lua component (${_LUA_COMP}) which is not available for the selected version (${_LUA_VER})
.   endif
.   for newcomp in ${_LUA_COMP_NEW}
.       if ${_LUA_COMPS_FINAL:M${newcomp}} == "" && !defined(IGNORE)
_LUA_COMPS_FINAL+=      ${newcomp}
.       endif
.   endfor
.endfor

# Add dependencies.
#
# The variable used are:
# _LUA_COMP     -       - Component part.
# _LUA_DEP_TYPE         - Dependency type part.

.for comp in ${_LUA_COMPS_FINAL}
_LUA_DEP_TYPE=          ${comp:C/.+_([[:alpha:]]+)$/\1/}
_LUA_COMP=              ${comp:C/_([[:alpha:]]+)$//}
# XXX Need a .for loop here so the variable is expanded before the assignment.
.   for comp_part in ${_LUA_COMP}
.       if ${_LUA_DEP_TYPE} == "lib"
.           if defined(_LUA_LIB_${comp_part}_${_LUA_VER})
LIB_DEPENDS+=           ${_LUA_LIB_${comp_part}_${_LUA_VER}}:${PORTSDIR}/${_LUA_PORT_${comp_part}_${_LUA_VER}}
.           else
BUILD_DEPENDS+=         ${_LUA_FILE_${comp_part}_${_LUA_VER}}:${PORTSDIR}/${_LUA_PORT_${comp_part}_${_LUA_VER}}
RUN_DEPENDS+=           ${_LUA_FILE_${comp_part}_${_LUA_VER}}:${PORTSDIR}/${_LUA_PORT_${comp_part}_${_LUA_VER}}
.           endif
.       else
${_LUA_DEP_TYPE:U}_DEPENDS+=    ${_LUA_FILE_${comp_part}_${_LUA_VER}}:${PORTSDIR}/${_LUA_PORT_${comp_part}_${_LUA_VER}}
.       endif
.   endfor
.endfor

# Packaging list variables.
.for var in ${_LUA_PLIST_ALL}
PLIST_SUB+=             ${var}="${${var}}"
.endfor
.for var in ${_LUA_PLIST_DIR_ALL}
PLIST_SUB+=             ${var}="${${var}:S/${LUA_PREFIX}\///}"
.endfor
.for var in ${_LUA_PLIST_ALL} ${_LUA_PLIST_DIR_ALL}
MAKE_ENV+=              ${var}="${${var}}"
.endfor

.endif      # _POSTMKINCLUDED