* [gentoo-dev] [PATCH 1/4] lua.eclass: split some stuff out as lua-utils.eclass
2020-09-30 16:23 [gentoo-dev] [PATCH 0/4] Eclass for single-impl Lua ebuilds Marek Szuba
@ 2020-09-30 16:23 ` Marek Szuba
2020-09-30 16:23 ` [gentoo-dev] [PATCH 2/4] lua.eclass: die if lua-single.eclass has already been loaded Marek Szuba
` (3 subsequent siblings)
4 siblings, 0 replies; 8+ messages in thread
From: Marek Szuba @ 2020-09-30 16:23 UTC (permalink / raw
To: gentoo-dev
These are the things that will be used by both lua and lua-single.
Signed-off-by: Marek Szuba <marecki@gentoo.org>
---
eclass/lua-utils.eclass | 373 ++++++++++++++++++++++++++++++++++++++++
eclass/lua.eclass | 345 +------------------------------------
2 files changed, 379 insertions(+), 339 deletions(-)
create mode 100644 eclass/lua-utils.eclass
diff --git a/eclass/lua-utils.eclass b/eclass/lua-utils.eclass
new file mode 100644
index 00000000000..490d19a0019
--- /dev/null
+++ b/eclass/lua-utils.eclass
@@ -0,0 +1,373 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: lua-utils.eclass
+# @MAINTAINER:
+# William Hubbs <williamh@gentoo.org>
+# Marek Szuba <marecki@gentoo.org>
+# @AUTHOR:
+# Marek Szuba <marecki@gentoo.org>
+# Based on python-utils-r1.eclass by Michał Górny <mgorny@gentoo.org> et al.
+# @SUPPORTED_EAPIS: 7
+# @BLURB: Utility functions for packages with Lua parts
+# @DESCRIPTION:
+# A utility eclass providing functions to query Lua implementations,
+# install Lua modules and scripts.
+#
+# Please note that for the time being this eclass does NOT support luajit.
+#
+# This eclass neither sets any metadata variables nor exports any phase
+# functions. It can be inherited safely.
+
+case ${EAPI:-0} in
+ 0|1|2|3|4|5|6)
+ die "Unsupported EAPI=${EAPI} (too old) for ${ECLASS}"
+ ;;
+ 7)
+ ;;
+ *)
+ die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
+ ;;
+esac
+
+if [[ ! ${_LUA_UTILS_R0} ]]; then
+
+inherit toolchain-funcs
+
+# @ECLASS-VARIABLE: _LUA_ALL_IMPLS
+# @INTERNAL
+# @DESCRIPTION:
+# All supported Lua implementations, most preferred last
+_LUA_ALL_IMPLS=(
+ lua5-1
+ lua5-2
+ lua5-3
+ lua5-4
+)
+readonly _LUA_ALL_IMPLS
+
+# @FUNCTION: _lua_set_impls
+# @INTERNAL
+# @DESCRIPTION:
+# Check LUA_COMPAT for well-formedness and validity, then set
+# two global variables:
+#
+# - _LUA_SUPPORTED_IMPLS containing valid implementations supported
+# by the ebuild (LUA_COMPAT minus dead implementations),
+#
+# - and _LUA_UNSUPPORTED_IMPLS containing valid implementations that
+# are not supported by the ebuild.
+#
+# Implementations in both variables are ordered using the pre-defined
+# eclass implementation ordering.
+#
+# This function must only be called once.
+_lua_set_impls() {
+ local i
+
+ if ! declare -p LUA_COMPAT &>/dev/null; then
+ die 'LUA_COMPAT not declared.'
+ fi
+ if [[ $(declare -p LUA_COMPAT) != "declare -a"* ]]; then
+ die 'LUA_COMPAT must be an array.'
+ fi
+
+ local supp=() unsupp=()
+
+ for i in "${_LUA_ALL_IMPLS[@]}"; do
+ if has "${i}" "${LUA_COMPAT[@]}"; then
+ supp+=( "${i}" )
+ else
+ unsupp+=( "${i}" )
+ fi
+ done
+
+ if [[ ! ${supp[@]} ]]; then
+ die "No supported implementation in LUA_COMPAT."
+ fi
+
+ if [[ ${_LUA_SUPPORTED_IMPLS[@]} ]]; then
+ # set once already, verify integrity
+ if [[ ${_LUA_SUPPORTED_IMPLS[@]} != ${supp[@]} ]]; then
+ eerror "Supported impls (LUA_COMPAT) changed between inherits!"
+ eerror "Before: ${_LUA_SUPPORTED_IMPLS[*]}"
+ eerror "Now : ${supp[*]}"
+ die "_LUA_SUPPORTED_IMPLS integrity check failed"
+ fi
+ if [[ ${_LUA_UNSUPPORTED_IMPLS[@]} != ${unsupp[@]} ]]; then
+ eerror "Unsupported impls changed between inherits!"
+ eerror "Before: ${_LUA_UNSUPPORTED_IMPLS[*]}"
+ eerror "Now : ${unsupp[*]}"
+ die "_LUA_UNSUPPORTED_IMPLS integrity check failed"
+ fi
+ else
+ _LUA_SUPPORTED_IMPLS=( "${supp[@]}" )
+ _LUA_UNSUPPORTED_IMPLS=( "${unsupp[@]}" )
+ readonly _LUA_SUPPORTED_IMPLS _LUA_UNSUPPORTED_IMPLS
+ fi
+}
+
+# @FUNCTION: _lua_wrapper_setup
+# @USAGE: [<path> [<impl>]]
+# @INTERNAL
+# @DESCRIPTION:
+# Create proper Lua executables and pkg-config wrappers
+# (if available) in the directory named by <path>. Set up PATH
+# and PKG_CONFIG_PATH appropriately. <path> defaults to ${T}/${ELUA}.
+#
+# The wrappers will be created for implementation named by <impl>,
+# or for one named by ${ELUA} if no <impl> passed.
+#
+# If the named directory contains a lua symlink already, it will
+# be assumed to contain proper wrappers already and only environment
+# setup will be done. If wrapper update is requested, the directory
+# shall be removed first.
+_lua_wrapper_setup() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local workdir=${1:-${T}/${ELUA}}
+ local impl=${2:-${ELUA}}
+
+ [[ ${workdir} ]] || die "${FUNCNAME}: no workdir specified."
+ [[ ${impl} ]] || die "${FUNCNAME}: no impl nor ELUA specified."
+
+ if [[ ! -x ${workdir}/bin/lua ]]; then
+ mkdir -p "${workdir}"/{bin,pkgconfig} || die
+
+ # Clean up, in case we were supposed to do a cheap update
+ rm -f "${workdir}"/bin/lua{,c} || die
+ rm -f "${workdir}"/pkgconfig/lua.pc || die
+
+ local ELUA LUA
+ _lua_export "${impl}" ELUA LUA
+
+ # Lua interpreter and compiler
+ ln -s "${EPREFIX}"/usr/bin/${ELUA} "${workdir}"/bin/lua || die
+ ln -s "${EPREFIX}"/usr/bin/${ELUA/a/ac} "${workdir}"/bin/luac || die
+
+ # pkg-config
+ ln -s "${EPREFIX}"/usr/$(get_libdir)/pkgconfig/${ELUA}.pc \
+ "${workdir}"/pkgconfig/lua.pc || die
+ fi
+
+ # Now, set the environment.
+ # But note that ${workdir} may be shared with something else,
+ # and thus already on top of PATH.
+ if [[ ${PATH##:*} != ${workdir}/bin ]]; then
+ PATH=${workdir}/bin${PATH:+:${PATH}}
+ fi
+ if [[ ${PKG_CONFIG_PATH##:*} != ${workdir}/pkgconfig ]]; then
+ PKG_CONFIG_PATH=${workdir}/pkgconfig${PKG_CONFIG_PATH:+:${PKG_CONFIG_PATH}}
+ fi
+ export PATH PKG_CONFIG_PATH
+}
+
+# @ECLASS-VARIABLE: ELUA
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# The executable name of the current Lua interpreter. This variable is set
+# automatically in functions called by lua_foreach_impl().
+#
+# Example value:
+# @CODE
+# lua5.1
+# @CODE
+
+# @ECLASS-VARIABLE: LUA
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# The absolute path to the current Lua interpreter. This variable is set
+# automatically in functions called by lua_foreach_impl().
+#
+# Example value:
+# @CODE
+# /usr/bin/lua5.1
+# @CODE
+
+# @FUNCTION: _lua_export
+# @USAGE: [<impl>] <variables>...
+# @INTERNAL
+# @DESCRIPTION:
+# Set and export the Lua implementation-relevant variables passed
+# as parameters.
+#
+# The optional first parameter may specify the requested Lua
+# implementation (either as LUA_TARGETS value, e.g. lua5-2,
+# or an ELUA one, e.g. lua5.2). If no implementation passed,
+# the current one will be obtained from ${ELUA}.
+_lua_export() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local impl var
+
+ case "${1}" in
+ lua*)
+ impl=${1/-/.}
+ shift
+ ;;
+ *)
+ impl=${ELUA}
+ if [[ -z ${impl} ]]; then
+ die "_lua_export called without a Lua implementation and ELUA is unset"
+ fi
+ ;;
+ esac
+ debug-print "${FUNCNAME}: implementation: ${impl}"
+
+ for var; do
+ case "${var}" in
+ ELUA)
+ export ELUA=${impl}
+ debug-print "${FUNCNAME}: ELUA = ${ELUA}"
+ ;;
+ LUA)
+ export LUA="${EPREFIX}"/usr/bin/${impl}
+ debug-print "${FUNCNAME}: LUA = ${LUA}"
+ ;;
+ LUA_CFLAGS)
+ local val
+
+ val=$($(tc-getPKG_CONFIG) --cflags ${impl}) || die
+
+ export LUA_CFLAGS=${val}
+ debug-print "${FUNCNAME}: LUA_CFLAGS = ${LUA_CFLAGS}"
+ ;;
+ LUA_CMOD_DIR)
+ local val
+
+ val=$($(tc-getPKG_CONFIG) --variable INSTALL_CMOD ${impl}) || die
+
+ export LUA_CMOD_DIR=${val}
+ debug-print "${FUNCNAME}: LUA_CMOD_DIR = ${LUA_CMOD_DIR}"
+ ;;
+ LUA_LIBS)
+ local val
+
+ val=$($(tc-getPKG_CONFIG) --libs ${impl}) || die
+
+ export LUA_LIBS=${val}
+ debug-print "${FUNCNAME}: LUA_LIBS = ${LUA_LIBS}"
+ ;;
+ LUA_LMOD_DIR)
+ local val
+
+ val=$($(tc-getPKG_CONFIG) --variable INSTALL_LMOD ${impl}) || die
+
+ export LUA_LMOD_DIR=${val}
+ debug-print "${FUNCNAME}: LUA_LMOD_DIR = ${LUA_LMOD_DIR}"
+ ;;
+ LUA_PKG_DEP)
+ local d
+ case ${impl} in
+ lua*)
+ LUA_PKG_DEP="dev-lang/lua:${impl#lua}"
+ ;;
+ *)
+ die "Invalid implementation: ${impl}"
+ ;;
+ esac
+
+ # use-dep
+ if [[ ${LUA_REQ_USE} ]]; then
+ LUA_PKG_DEP+=[${LUA_REQ_USE}]
+ fi
+
+ export LUA_PKG_DEP
+ debug-print "${FUNCNAME}: LUA_PKG_DEP = ${LUA_PKG_DEP}"
+ ;;
+ LUA_VERSION)
+ local val
+
+ val=$($(tc-getPKG_CONFIG) --modversion ${impl}) || die
+
+ export LUA_VERSION=${val}
+ debug-print "${FUNCNAME}: LUA_VERSION = ${LUA_VERSION}"
+ ;;
+ *)
+ die "_lua_export: unknown variable ${var}"
+ ;;
+ esac
+ done
+}
+
+# @FUNCTION: lua_get_CFLAGS
+# @USAGE: [<impl>]
+# @DESCRIPTION:
+# Obtain and print the compiler flags for building against Lua,
+# for the given implementation. If no implementation is provided,
+# ${ELUA} will be used.
+#
+# Please note that this function requires Lua and pkg-config installed,
+# and therefore proper build-time dependencies need be added to the ebuild.
+lua_get_CFLAGS() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ _lua_export "${@}" LUA_CFLAGS
+ echo "${LUA_CFLAGS}"
+}
+
+# @FUNCTION: lua_get_cmod_dir
+# @USAGE: [<impl>]
+# @DESCRIPTION:
+# Obtain and print the name of the directory into which compiled Lua
+# modules are installed, for the given implementation. If no implementation
+# is provided, ${ELUA} will be used.
+#
+# Please note that this function requires Lua and pkg-config installed,
+# and therefore proper build-time dependencies need be added to the ebuild.
+lua_get_cmod_dir() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ _lua_export "${@}" LUA_CMOD_DIR
+ echo "${LUA_CMOD_DIR}"
+}
+
+# @FUNCTION: lua_get_LIBS
+# @USAGE: [<impl>]
+# @DESCRIPTION:
+# Obtain and print the compiler flags for linking against Lua,
+# for the given implementation. If no implementation is provided,
+# ${ELUA} will be used.
+#
+# Please note that this function requires Lua and pkg-config installed,
+# and therefore proper build-time dependencies need be added to the ebuild.
+lua_get_LIBS() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ _lua_export "${@}" LUA_LIBS
+ echo "${LUA_LIBS}"
+}
+
+# @FUNCTION: lua_get_lmod_dir
+# @USAGE: [<impl>]
+# @DESCRIPTION:
+# Obtain and print the name of the directory into which native-Lua
+# modules are installed, for the given implementation. If no implementation
+# is provided, ${ELUA} will be used.
+#
+# Please note that this function requires Lua and pkg-config installed,
+# and therefore proper build-time dependencies need be added to the ebuild.
+lua_get_lmod_dir() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ _lua_export "${@}" LUA_LMOD_DIR
+ echo "${LUA_LMOD_DIR}"
+}
+
+# @FUNCTION: lua_get_version
+# @USAGE: [<impl>]
+# @DESCRIPTION:
+# Obtain and print the full version number of the given Lua implementation.
+# If no implementation is provided, ${ELUA} will be used.
+#
+# Please note that this function requires Lua and pkg-config installed,
+# and therefore proper build-time dependencies need be added to the ebuild.
+lua_get_version() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ _lua_export "${@}" LUA_VERSION
+ echo "${LUA_VERSION}"
+}
+
+_LUA_UTILS_R0=1
+fi
diff --git a/eclass/lua.eclass b/eclass/lua.eclass
index 7dccba6980a..f4594872e58 100644
--- a/eclass/lua.eclass
+++ b/eclass/lua.eclass
@@ -7,7 +7,7 @@
# Marek Szuba <marecki@gentoo.org>
# @AUTHOR:
# Marek Szuba <marecki@gentoo.org>
-# Based on python{,-utils}-r1.eclass by Michał Górny <mgorny@gentoo.org> et al.
+# Based on python-r1.eclass by Michał Górny <mgorny@gentoo.org> et al.
# @SUPPORTED_EAPIS: 7
# @BLURB: A common eclass for Lua packages
# @DESCRIPTION:
@@ -21,7 +21,9 @@
# package easily. It also provides methods to easily run a command for
# each enabled Lua implementation and duplicate the sources for them.
#
-# Please note that for the time being this eclass does NOT support luajit.
+# Note that since this eclass always inherits lua-utils as well, in ebuilds
+# using the former there is no need to explicitly inherit the latter in order
+# to use helper functions such as lua_get_CFLAGS.
#
# @EXAMPLE:
# @CODE
@@ -61,7 +63,7 @@ esac
if [[ ! ${_LUA_R0} ]]; then
-inherit multibuild toolchain-funcs
+inherit multibuild lua-utils
fi
@@ -140,28 +142,6 @@ fi
# ${WORKDIR}/foo-1.3-lua5-1
# @CODE
-# @ECLASS-VARIABLE: ELUA
-# @DEFAULT_UNSET
-# @DESCRIPTION:
-# The executable name of the current Lua interpreter. This variable is set
-# automatically in functions called by lua_foreach_impl().
-#
-# Example value:
-# @CODE
-# lua5.1
-# @CODE
-
-# @ECLASS-VARIABLE: LUA
-# @DEFAULT_UNSET
-# @DESCRIPTION:
-# The absolute path to the current Lua interpreter. This variable is set
-# automatically in functions called by lua_foreach_impl().
-#
-# Example value:
-# @CODE
-# /usr/bin/lua5.1
-# @CODE
-
# @ECLASS-VARIABLE: LUA_DEPS
# @OUTPUT_VARIABLE
# @DESCRIPTION:
@@ -219,112 +199,6 @@ fi
if [[ ! ${_LUA_R0} ]]; then
-# @FUNCTION: _lua_export
-# @USAGE: [<impl>] <variables>...
-# @INTERNAL
-# @DESCRIPTION:
-# Set and export the Lua implementation-relevant variables passed
-# as parameters.
-#
-# The optional first parameter may specify the requested Lua
-# implementation (either as LUA_TARGETS value, e.g. lua5-2,
-# or an ELUA one, e.g. lua5.2). If no implementation passed,
-# the current one will be obtained from ${ELUA}.
-_lua_export() {
- debug-print-function ${FUNCNAME} "${@}"
-
- local impl var
-
- case "${1}" in
- lua*)
- impl=${1/-/.}
- shift
- ;;
- *)
- impl=${ELUA}
- if [[ -z ${impl} ]]; then
- die "_lua_export called without a Lua implementation and ELUA is unset"
- fi
- ;;
- esac
- debug-print "${FUNCNAME}: implementation: ${impl}"
-
- for var; do
- case "${var}" in
- ELUA)
- export ELUA=${impl}
- debug-print "${FUNCNAME}: ELUA = ${ELUA}"
- ;;
- LUA)
- export LUA="${EPREFIX}"/usr/bin/${impl}
- debug-print "${FUNCNAME}: LUA = ${LUA}"
- ;;
- LUA_CFLAGS)
- local val
-
- val=$($(tc-getPKG_CONFIG) --cflags ${impl}) || die
-
- export LUA_CFLAGS=${val}
- debug-print "${FUNCNAME}: LUA_CFLAGS = ${LUA_CFLAGS}"
- ;;
- LUA_CMOD_DIR)
- local val
-
- val=$($(tc-getPKG_CONFIG) --variable INSTALL_CMOD ${impl}) || die
-
- export LUA_CMOD_DIR=${val}
- debug-print "${FUNCNAME}: LUA_CMOD_DIR = ${LUA_CMOD_DIR}"
- ;;
- LUA_LIBS)
- local val
-
- val=$($(tc-getPKG_CONFIG) --libs ${impl}) || die
-
- export LUA_LIBS=${val}
- debug-print "${FUNCNAME}: LUA_LIBS = ${LUA_LIBS}"
- ;;
- LUA_LMOD_DIR)
- local val
-
- val=$($(tc-getPKG_CONFIG) --variable INSTALL_LMOD ${impl}) || die
-
- export LUA_LMOD_DIR=${val}
- debug-print "${FUNCNAME}: LUA_LMOD_DIR = ${LUA_LMOD_DIR}"
- ;;
- LUA_PKG_DEP)
- local d
- case ${impl} in
- lua*)
- LUA_PKG_DEP="dev-lang/lua:${impl#lua}"
- ;;
- *)
- die "Invalid implementation: ${impl}"
- ;;
- esac
-
- # use-dep
- if [[ ${LUA_REQ_USE} ]]; then
- LUA_PKG_DEP+=[${LUA_REQ_USE}]
- fi
-
- export LUA_PKG_DEP
- debug-print "${FUNCNAME}: LUA_PKG_DEP = ${LUA_PKG_DEP}"
- ;;
- LUA_VERSION)
- local val
-
- val=$($(tc-getPKG_CONFIG) --modversion ${impl}) || die
-
- export LUA_VERSION=${val}
- debug-print "${FUNCNAME}: LUA_VERSION = ${LUA_VERSION}"
- ;;
- *)
- die "_lua_export: unknown variable ${var}"
- ;;
- esac
- done
-}
-
# @FUNCTION: _lua_validate_useflags
# @INTERNAL
# @DESCRIPTION:
@@ -401,61 +275,6 @@ _lua_multibuild_wrapper() {
"${@}"
}
-# @FUNCTION: _lua_wrapper_setup
-# @USAGE: [<path> [<impl>]]
-# @INTERNAL
-# @DESCRIPTION:
-# Create proper Lua executables and pkg-config wrappers
-# (if available) in the directory named by <path>. Set up PATH
-# and PKG_CONFIG_PATH appropriately. <path> defaults to ${T}/${ELUA}.
-#
-# The wrappers will be created for implementation named by <impl>,
-# or for one named by ${ELUA} if no <impl> passed.
-#
-# If the named directory contains a lua symlink already, it will
-# be assumed to contain proper wrappers already and only environment
-# setup will be done. If wrapper update is requested, the directory
-# shall be removed first.
-_lua_wrapper_setup() {
- debug-print-function ${FUNCNAME} "${@}"
-
- local workdir=${1:-${T}/${ELUA}}
- local impl=${2:-${ELUA}}
-
- [[ ${workdir} ]] || die "${FUNCNAME}: no workdir specified."
- [[ ${impl} ]] || die "${FUNCNAME}: no impl nor ELUA specified."
-
- if [[ ! -x ${workdir}/bin/lua ]]; then
- mkdir -p "${workdir}"/{bin,pkgconfig} || die
-
- # Clean up, in case we were supposed to do a cheap update
- rm -f "${workdir}"/bin/lua{,c} || die
- rm -f "${workdir}"/pkgconfig/lua.pc || die
-
- local ELUA LUA
- _lua_export "${impl}" ELUA LUA
-
- # Lua interpreter and compiler
- ln -s "${EPREFIX}"/usr/bin/${ELUA} "${workdir}"/bin/lua || die
- ln -s "${EPREFIX}"/usr/bin/${ELUA/a/ac} "${workdir}"/bin/luac || die
-
- # pkg-config
- ln -s "${EPREFIX}"/usr/$(get_libdir)/pkgconfig/${ELUA}.pc \
- "${workdir}"/pkgconfig/lua.pc || die
- fi
-
- # Now, set the environment.
- # But note that ${workdir} may be shared with something else,
- # and thus already on top of PATH.
- if [[ ${PATH##:*} != ${workdir}/bin ]]; then
- PATH=${workdir}/bin${PATH:+:${PATH}}
- fi
- if [[ ${PKG_CONFIG_PATH##:*} != ${workdir}/pkgconfig ]]; then
- PKG_CONFIG_PATH=${workdir}/pkgconfig${PKG_CONFIG_PATH:+:${PKG_CONFIG_PATH}}
- fi
- export PATH PKG_CONFIG_PATH
-}
-
# @FUNCTION: lua_copy_sources
# @DESCRIPTION:
# Create a single copy of the package sources for each enabled Lua
@@ -495,161 +314,9 @@ lua_foreach_impl() {
multibuild_foreach_variant _lua_multibuild_wrapper "${@}"
}
-# @FUNCTION: lua_get_CFLAGS
-# @USAGE: [<impl>]
-# @DESCRIPTION:
-# Obtain and print the compiler flags for building against Lua,
-# for the given implementation. If no implementation is provided,
-# ${ELUA} will be used.
-#
-# Please note that this function requires Lua and pkg-config installed,
-# and therefore proper build-time dependencies need be added to the ebuild.
-lua_get_CFLAGS() {
- debug-print-function ${FUNCNAME} "${@}"
-
- _lua_export "${@}" LUA_CFLAGS
- echo "${LUA_CFLAGS}"
-}
-
-# @FUNCTION: lua_get_cmod_dir
-# @USAGE: [<impl>]
-# @DESCRIPTION:
-# Obtain and print the name of the directory into which compiled Lua
-# modules are installed, for the given implementation. If no implementation
-# is provided, ${ELUA} will be used.
-#
-# Please note that this function requires Lua and pkg-config installed,
-# and therefore proper build-time dependencies need be added to the ebuild.
-lua_get_cmod_dir() {
- debug-print-function ${FUNCNAME} "${@}"
-
- _lua_export "${@}" LUA_CMOD_DIR
- echo "${LUA_CMOD_DIR}"
-}
-
-# @FUNCTION: lua_get_LIBS
-# @USAGE: [<impl>]
-# @DESCRIPTION:
-# Obtain and print the compiler flags for linking against Lua,
-# for the given implementation. If no implementation is provided,
-# ${ELUA} will be used.
-#
-# Please note that this function requires Lua and pkg-config installed,
-# and therefore proper build-time dependencies need be added to the ebuild.
-lua_get_LIBS() {
- debug-print-function ${FUNCNAME} "${@}"
-
- _lua_export "${@}" LUA_LIBS
- echo "${LUA_LIBS}"
-}
-
-# @FUNCTION: lua_get_lmod_dir
-# @USAGE: [<impl>]
-# @DESCRIPTION:
-# Obtain and print the name of the directory into which native-Lua
-# modules are installed, for the given implementation. If no implementation
-# is provided, ${ELUA} will be used.
-#
-# Please note that this function requires Lua and pkg-config installed,
-# and therefore proper build-time dependencies need be added to the ebuild.
-lua_get_lmod_dir() {
- debug-print-function ${FUNCNAME} "${@}"
-
- _lua_export "${@}" LUA_LMOD_DIR
- echo "${LUA_LMOD_DIR}"
-}
-
-# @FUNCTION: lua_get_version
-# @USAGE: [<impl>]
-# @DESCRIPTION:
-# Obtain and print the full version number of the given Lua implementation.
-# If no implementation is provided, ${ELUA} will be used.
-#
-# Please note that this function requires Lua and pkg-config installed,
-# and therefore proper build-time dependencies need be added to the ebuild.
-lua_get_version() {
- debug-print-function ${FUNCNAME} "${@}"
-
- _lua_export "${@}" LUA_VERSION
- echo "${LUA_VERSION}"
-}
-
_LUA_R0=1
fi
-# @ECLASS-VARIABLE: _LUA_ALL_IMPLS
-# @INTERNAL
-# @DESCRIPTION:
-# All supported Lua implementations, most preferred last
-_LUA_ALL_IMPLS=(
- lua5-1
- lua5-2
- lua5-3
- lua5-4
-)
-readonly _LUA_ALL_IMPLS
-
-# @FUNCTION: _lua_set_impls
-# @INTERNAL
-# @DESCRIPTION:
-# Check LUA_COMPAT for well-formedness and validity, then set
-# two global variables:
-#
-# - _LUA_SUPPORTED_IMPLS containing valid implementations supported
-# by the ebuild (LUA_COMPAT minus dead implementations),
-#
-# - and _LUA_UNSUPPORTED_IMPLS containing valid implementations that
-# are not supported by the ebuild.
-#
-# Implementations in both variables are ordered using the pre-defined
-# eclass implementation ordering.
-#
-# This function must only be called once.
-_lua_set_impls() {
- local i
-
- if ! declare -p LUA_COMPAT &>/dev/null; then
- die 'LUA_COMPAT not declared.'
- fi
- if [[ $(declare -p LUA_COMPAT) != "declare -a"* ]]; then
- die 'LUA_COMPAT must be an array.'
- fi
-
- local supp=() unsupp=()
-
- for i in "${_LUA_ALL_IMPLS[@]}"; do
- if has "${i}" "${LUA_COMPAT[@]}"; then
- supp+=( "${i}" )
- else
- unsupp+=( "${i}" )
- fi
- done
-
- if [[ ! ${supp[@]} ]]; then
- die "No supported implementation in LUA_COMPAT."
- fi
-
- if [[ ${_LUA_SUPPORTED_IMPLS[@]} ]]; then
- # set once already, verify integrity
- if [[ ${_LUA_SUPPORTED_IMPLS[@]} != ${supp[@]} ]]; then
- eerror "Supported impls (LUA_COMPAT) changed between inherits!"
- eerror "Before: ${_LUA_SUPPORTED_IMPLS[*]}"
- eerror "Now : ${supp[*]}"
- die "_LUA_SUPPORTED_IMPLS integrity check failed"
- fi
- if [[ ${_LUA_UNSUPPORTED_IMPLS[@]} != ${unsupp[@]} ]]; then
- eerror "Unsupported impls changed between inherits!"
- eerror "Before: ${_LUA_UNSUPPORTED_IMPLS[*]}"
- eerror "Now : ${unsupp[*]}"
- die "_LUA_UNSUPPORTED_IMPLS integrity check failed"
- fi
- else
- _LUA_SUPPORTED_IMPLS=( "${supp[@]}" )
- _LUA_UNSUPPORTED_IMPLS=( "${unsupp[@]}" )
- readonly _LUA_SUPPORTED_IMPLS _LUA_UNSUPPORTED_IMPLS
- fi
-}
-
# @FUNCTION: _lua_set_globals
# @INTERNAL
# @DESCRIPTION:
@@ -707,4 +374,4 @@ _lua_set_globals() {
}
_lua_set_globals
-unset -f _lua_set_globals _lua_set_impls
+unset -f _lua_set_globals
--
2.26.2
^ permalink raw reply related [flat|nested] 8+ messages in thread* [gentoo-dev] [PATCH 4/4] lua-single.eclass: new eclass for single-implementation Lua ebuilds
2020-09-30 16:23 [gentoo-dev] [PATCH 0/4] Eclass for single-impl Lua ebuilds Marek Szuba
` (2 preceding siblings ...)
2020-09-30 16:23 ` [gentoo-dev] [PATCH 3/4] profiles/desc: describe LUA_SINGLE_TARGET Marek Szuba
@ 2020-09-30 16:23 ` Marek Szuba
2020-10-01 18:31 ` [gentoo-dev] [PATCH 0/4] Eclass for single-impl " Daniel Pielmeier
4 siblings, 0 replies; 8+ messages in thread
From: Marek Szuba @ 2020-09-30 16:23 UTC (permalink / raw
To: gentoo-dev
With many thanks to Michał Górny and other authors of
python-single-r1.eclass.
Signed-off-by: Marek Szuba <marecki@gentoo.org>
---
eclass/lua-single.eclass | 510 +++++++++++++++++++++++++++++++++++++++
1 file changed, 510 insertions(+)
create mode 100644 eclass/lua-single.eclass
diff --git a/eclass/lua-single.eclass b/eclass/lua-single.eclass
new file mode 100644
index 00000000000..2233fdd33b6
--- /dev/null
+++ b/eclass/lua-single.eclass
@@ -0,0 +1,510 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: lua-single.eclass
+# @MAINTAINER:
+# William Hubbs <williamh@gentoo.org>
+# Marek Szuba <marecki@gentoo.org>
+# @AUTHOR:
+# Marek Szuba <marecki@gentoo.org>
+# Based on python-single-r1.eclass by Michał Górny <mgorny@gentoo.org> et al.
+# @SUPPORTED_EAPIS: 7
+# @BLURB: An eclass for Lua packages not installed for multiple implementations.
+# @DESCRIPTION:
+# An extension of lua.eclass suite for packages which don't support being
+# installed for multiple Lua implementations. This mostly includes software
+# embedding Lua.
+#
+# This eclass sets correct IUSE. It also provides LUA_DEPS
+# and LUA_REQUIRED_USE that need to be added to appropriate ebuild
+# metadata variables.
+#
+# The eclass exports LUA_SINGLE_USEDEP that is suitable for depending
+# on other packages using the eclass. Dependencies on packages using
+# lua.eclass should be created via lua_gen_cond_dep() function, using
+# LUA_USEDEP placeholder.
+#
+# Please note that packages support multiple Lua implementations
+# (using lua.eclass) cannot depend on packages not supporting
+# them (using this eclass).
+#
+# Note that since this eclass always inherits lua-utils as well, in ebuilds
+# using the former there is no need to explicitly inherit the latter in order
+# to use helper functions such as lua_get_CFLAGS.
+
+case ${EAPI:-0} in
+ 0|1|2|3|4|5|6)
+ die "Unsupported EAPI=${EAPI} (too old) for ${ECLASS}"
+ ;;
+ 7)
+ ;;
+ *)
+ die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
+ ;;
+esac
+
+if [[ ! ${_LUA_SINGLE_R0} ]]; then
+
+if [[ ${_LUA_R0} ]]; then
+ die 'lua-single.eclass cannot be used with lua.eclass.'
+fi
+
+inherit lua-utils
+
+fi
+
+EXPORT_FUNCTIONS pkg_setup
+
+# @ECLASS-VARIABLE: LUA_COMPAT
+# @REQUIRED
+# @PRE_INHERIT
+# @DESCRIPTION:
+# This variable contains a list of Lua implementations the package
+# supports. It must be set before the `inherit' call. It has to be
+# an array.
+#
+# Example:
+# @CODE
+# LUA_COMPAT=( lua5-1 lua5-2 lua5-3 )
+# @CODE
+#
+# Please note that you can also use bash brace expansion if you like:
+# @CODE
+# LUA_COMPAT=( lua5-{1..3} )
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_COMPAT_OVERRIDE
+# @USER_VARIABLE
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# This variable can be used when working with ebuilds to override
+# the in-ebuild LUA_COMPAT. It is a string listing all
+# the implementations which package will be built for. It need be
+# specified in the calling environment, and not in ebuilds.
+#
+# It should be noted that in order to preserve metadata immutability,
+# LUA_COMPAT_OVERRIDE does not affect IUSE nor dependencies.
+# The state of LUA_TARGETS is ignored, and all the implementations
+# in LUA_COMPAT_OVERRIDE are built. Dependencies need to be satisfied
+# manually.
+#
+# Example:
+# @CODE
+# LUA_COMPAT_OVERRIDE='lua5-2' emerge -1v dev-lua/foo
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_REQ_USE
+# @DEFAULT_UNSET
+# @PRE_INHERIT
+# @DESCRIPTION:
+# The list of USE flags required to be enabled on the chosen Lua
+# implementations, formed as a USE-dependency string. It should be valid
+# for all implementations in LUA_COMPAT, so it may be necessary to
+# use USE defaults.
+# This must be set before calling `inherit'.
+#
+# Example:
+# @CODE
+# LUA_REQ_USE="deprecated"
+# @CODE
+#
+# It will cause the Lua dependencies to look like:
+# @CODE
+# lua_targets_luaX-Y? ( dev-lang/lua:X.Y[deprecated] )
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_DEPS
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# This is an eclass-generated Lua dependency string for all
+# implementations listed in LUA_COMPAT.
+#
+# Example use:
+# @CODE
+# RDEPEND="${LUA_DEPS}
+# dev-foo/mydep"
+# DEPEND="${RDEPEND}"
+# @CODE
+#
+# Example value:
+# @CODE
+# lua_targets_lua5-1? ( dev-lang/lua:5.1 )
+# lua_targets_lua5-2? ( dev-lang/lua:5.2 )
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_REQUIRED_USE
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# This is an eclass-generated required-use expression which ensures at
+# least one Lua implementation has been enabled.
+#
+# This expression should be utilized in an ebuild by including it in
+# REQUIRED_USE, optionally behind a use flag.
+#
+# Example use:
+# @CODE
+# REQUIRED_USE="lua? ( ${LUA_REQUIRED_USE} )"
+# @CODE
+#
+# Example value:
+# @CODE
+# || ( lua_targets_lua5-1 lua_targets_lua5-2 )
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_SINGLE_USEDEP
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# This is an eclass-generated USE-dependency string which can be used
+# to depend on another lua-single package being built for the same
+# Lua implementations.
+#
+# If you need to depend on a multi-impl (lua.eclass) package, use
+# lua_gen_cond_dep with LUA_USEDEP placeholder instead.
+#
+# Example use:
+# @CODE
+# RDEPEND="dev-lua/foo[${LUA_SINGLE_USEDEP}]"
+# @CODE
+#
+# Example value:
+# @CODE
+# lua_single_target_lua5-1(-)?
+# @CODE
+
+# @ECLASS-VARIABLE: LUA_USEDEP
+# @OUTPUT_VARIABLE
+# @DESCRIPTION:
+# This is an eclass-generated USE-dependency string which can be used to
+# depend on another Lua package being built for the same Lua
+# implementations.
+#
+# Example use:
+# @CODE
+# RDEPEND="dev-lua/foo[${LUA_USEDEP}]"
+# @CODE
+#
+# Example value:
+# @CODE
+# lua_targets_lua5-1(-)?,lua_targets_lua5-2(-)?
+# @CODE
+
+# @FUNCTION: _lua_single_set_globals
+# @INTERNAL
+# @DESCRIPTION:
+# Sets all the global output variables provided by this eclass.
+# This function must be called once, in global scope.
+_lua_single_set_globals() {
+ _lua_set_impls
+
+ local flags=( "${_LUA_SUPPORTED_IMPLS[@]/#/lua_single_target_}" )
+
+ if [[ ${#_LUA_SUPPORTED_IMPLS[@]} -eq 1 ]]; then
+ # if only one implementation is supported, use IUSE defaults
+ # to avoid requesting the user to enable it
+ IUSE="+${flags[0]}"
+ else
+ IUSE="${flags[*]}"
+ fi
+
+ local requse="^^ ( ${flags[*]} )"
+ local single_flags="${flags[@]/%/(-)?}"
+ local single_usedep=${single_flags// /,}
+
+ local deps= i PYTHON_PKG_DEP
+ for i in "${_LUA_SUPPORTED_IMPLS[@]}"; do
+ _lua_export "${i}" LUA_PKG_DEP
+ deps+="lua_single_target_${i}? ( ${LUA_PKG_DEP} ) "
+ done
+
+ if [[ ${LUA_DEPS+1} ]]; then
+ if [[ ${LUA_DEPS} != "${deps}" ]]; then
+ eerror "LUA_DEPS have changed between inherits (LUA_REQ_USE?)!"
+ eerror "Before: ${LUA_DEPS}"
+ eerror "Now : ${deps}"
+ die "LUA_DEPS integrity check failed"
+ fi
+
+ # these two are formality -- they depend on LUA_COMPAT only
+ if [[ ${LUA_REQUIRED_USE} != ${requse} ]]; then
+ eerror "LUA_REQUIRED_USE have changed between inherits!"
+ eerror "Before: ${LUA_REQUIRED_USE}"
+ eerror "Now : ${requse}"
+ die "LUA_REQUIRED_USE integrity check failed"
+ fi
+
+ if [[ ${LUA_SINGLE_USEDEP} != "${single_usedep}" ]]; then
+ eerror "LUA_SINGLE_USEDEP have changed between inherits!"
+ eerror "Before: ${LUA_SINGLE_USEDEP}"
+ eerror "Now : ${single_usedep}"
+ die "LUA_SINGLE_USEDEP integrity check failed"
+ fi
+ else
+ LUA_DEPS=${deps}
+ LUA_REQUIRED_USE=${requse}
+ LUA_SINGLE_USEDEP=${single_usedep}
+ LUA_USEDEP='%LUA_USEDEP-NEEDS-TO-BE-USED-IN-LUA_GEN_COND_DEP%'
+ readonly LUA_DEPS LUA_REQUIRED_USE LUA_SINGLE_USEDEP LUA_USEDEP
+ fi
+}
+
+_lua_single_set_globals
+unset -f _lua_single_set_globals
+
+if [[ ! ${_LUA_SINGLE_R0} ]]; then
+
+# @FUNCTION: _lua_gen_usedep
+# @USAGE: [<pattern>...]
+# @INTERNAL
+# @DESCRIPTION:
+# Output a USE dependency string for Lua implementations which
+# are both in LUA_COMPAT and match any of the patterns passed
+# as parameters to the function.
+#
+# The patterns can be fnmatch-style patterns (matched via bash == operator
+# against LUA_COMPAT values). Remember to escape or quote the fnmatch
+# patterns to prevent accidental shell filename expansion.
+#
+# This is an internal function used to implement lua_gen_cond_dep.
+_lua_gen_usedep() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local impl matches=()
+
+ _lua_verify_patterns "${@}"
+ for impl in "${_LUA_SUPPORTED_IMPLS[@]}"; do
+ if _lua_impl_matches "${impl}" "${@}"; then
+ matches+=(
+ "lua_single_target_${impl}(-)?"
+ )
+ fi
+ done
+
+ [[ ${matches[@]} ]] || die "No supported implementations match lua_gen_usedep patterns: ${@}"
+
+ local out=${matches[@]}
+ echo "${out// /,}"
+}
+
+# @FUNCTION: _lua_impl_matches
+# @USAGE: <impl> [<pattern>...]
+# @INTERNAL
+# @DESCRIPTION:
+# Check whether the specified <impl> matches at least one
+# of the patterns following it. Return 0 if it does, 1 otherwise.
+# Matches if no patterns are provided.
+#
+# <impl> can be in LUA_COMPAT or ELUA form. The patterns can be
+# fnmatch-style patterns, e.g. 'lua5*', '..
+_lua_impl_matches() {
+ [[ ${#} -ge 1 ]] || die "${FUNCNAME}: takes at least 1 parameter"
+ [[ ${#} -eq 1 ]] && return 0
+
+ local impl=${1} pattern
+ shift
+
+ for pattern; do
+ # unify value style to allow lax matching
+ if [[ ${impl/./-} == ${pattern/./-} ]]; then
+ return 0
+ fi
+ done
+
+ return 1
+}
+
+# @FUNCTION: _lua_verify_patterns
+# @USAGE: <pattern>...
+# @INTERNAL
+# @DESCRIPTION:
+# Verify whether the patterns passed to the eclass function are correct
+# (i.e. can match any valid implementation). Dies on wrong pattern.
+_lua_verify_patterns() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local impl pattern
+ for pattern; do
+ for impl in "${_LUA_ALL_IMPLS[@]}"; do
+ [[ ${impl} == ${pattern/./-} ]] && continue 2
+ done
+
+ die "Invalid implementation pattern: ${pattern}"
+ done
+}
+
+# @FUNCTION: lua_gen_cond_dep
+# @USAGE: <dependency> [<pattern>...]
+# @DESCRIPTION:
+# Output a list of <dependency>-ies made conditional to USE flags
+# of Lua implementations which are both in LUA_COMPAT and match
+# any of the patterns passed as the remaining parameters.
+#
+# The patterns can be fnmatch-style patterns (matched via bash == operator
+# against LUA_COMPAT values). Remember to escape or quote the fnmatch
+# patterns to prevent accidental shell filename expansion.
+#
+# In order to enforce USE constraints on the packages, verbatim
+# '${LUA_SINGLE_USEDEP}' and '${LUA_USEDEP}' (quoted!) may
+# be placed in the dependency specification. It will get expanded within
+# the function into a proper USE dependency string.
+#
+# Example:
+# @CODE
+# LUA_COMPAT=( lua5-{1..3} )
+# RDEPEND="$(lua_gen_cond_dep \
+# 'dev-lua/backported_core_module[${LUA_USEDEP}]' lua5-1 lua5-2 )"
+# @CODE
+#
+# It will cause the variable to look like:
+# @CODE
+# RDEPEND="lua_single_target_lua5-1? (
+# dev-lua/backported_core_module[lua_targets_lua5-1(-)?,...] )
+# lua_single_target_lua5-2? (
+# dev-lua/backported_core_module[lua_targets_lua5-2(-)?,...] )"
+# @CODE
+lua_gen_cond_dep() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local impl matches=()
+
+ local dep=${1}
+ shift
+
+ _lua_verify_patterns "${@}"
+ for impl in "${_LUA_SUPPORTED_IMPLS[@]}"; do
+ if _lua_impl_matches "${impl}" "${@}"; then
+ # substitute ${LUA_SINGLE_USEDEP} if used
+ # (since lua_gen_usedep() will not return
+ # ${LUA_SINGLE_USEDEP}, the code is run at most once)
+ if [[ ${dep} == *'${LUA_SINGLE_USEDEP}'* ]]; then
+ local usedep=$(_lua_gen_usedep "${@}")
+ dep=${dep//\$\{LUA_SINGLE_USEDEP\}/${usedep}}
+ fi
+ local multi_usedep="lua_targets_${impl}(-)"
+
+ local subdep=${dep//\$\{LUA_MULTI_USEDEP\}/${multi_usedep}}
+ matches+=( "lua_single_target_${impl}? (
+ ${subdep//\$\{LUA_USEDEP\}/${multi_usedep}} )" )
+ fi
+ done
+
+ echo "${matches[@]}"
+}
+
+# @FUNCTION: lua_gen_impl_dep
+# @USAGE: [<requested-use-flags> [<impl-pattern>...]]
+# @DESCRIPTION:
+# Output a dependency on Lua implementations with the specified USE
+# dependency string appended, or no USE dependency string if called
+# without the argument (or with empty argument). If any implementation
+# patterns are passed, the output dependencies will be generated only
+# for the implementations matching them.
+#
+# The patterns can be fnmatch-style patterns (matched via bash == operator
+# against LUA_COMPAT values). Remember to escape or quote the fnmatch
+# patterns to prevent accidental shell filename expansion.
+#
+# Use this function when you need to request different USE flags
+# on the Lua interpreter depending on package's USE flags. If you
+# only need a single set of interpreter USE flags, just set
+# LUA_REQ_USE and use ${LUA_DEPS} globally.
+#
+# Example:
+# @CODE
+# LUA_COMPAT=( lua5-{1..3} )
+# RDEPEND="foo? ( $(lua_gen_impl_dep 'deprecated(+)' lua5-3 ) )"
+# @CODE
+#
+# It will cause the variable to look like:
+# @CODE
+# RDEPEND="foo? (
+# lua_single_target_lua5-3? ( dev-lang/lua:5.3[deprecated(+)] )
+# )"
+# @CODE
+lua_gen_impl_dep() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ local impl
+ local matches=()
+
+ local LUA_REQ_USE=${1}
+ shift
+
+ _lua_verify_patterns "${@}"
+ for impl in "${_LUA_SUPPORTED_IMPLS[@]}"; do
+ if _lua_impl_matches "${impl}" "${@}"; then
+ local LUA_PKG_DEP
+ _lua_export "${impl}" LUA_PKG_DEP
+ matches+=( "lua_single_target_${impl}? ( ${LUA_PKG_DEP} )" )
+ fi
+ done
+
+ echo "${matches[@]}"
+}
+
+# @FUNCTION: lua_setup
+# @DESCRIPTION:
+# Determine what the selected Lua implementation is and set
+# the Lua build environment up for it.
+lua_setup() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ unset ELUA
+
+ # support developer override
+ if [[ ${LUA_COMPAT_OVERRIDE} ]]; then
+ local impls=( ${LUA_COMPAT_OVERRIDE} )
+ [[ ${#impls[@]} -eq 1 ]] || die "LUA_COMPAT_OVERRIDE must name exactly one implementation for lua-single"
+
+ ewarn "WARNING: LUA_COMPAT_OVERRIDE in effect. The following Lua"
+ ewarn "implementation will be used:"
+ ewarn
+ ewarn " ${LUA_COMPAT_OVERRIDE}"
+ ewarn
+ ewarn "Dependencies won't be satisfied, and LUA_SINGLE_TARGET flags will be ignored."
+
+ _lua_export "${impls[0]}" ELUA LUA
+ _lua_wrapper_setup
+ einfo "Using ${ELUA} to build"
+ return
+ fi
+
+ local impl
+ for impl in "${_LUA_SUPPORTED_IMPLS[@]}"; do
+ if use "lua_single_target_${impl}"; then
+ if [[ ${ELUA} ]]; then
+ eerror "Your LUA_SINGLE_TARGET setting lists more than a single Lua"
+ eerror "implementation. Please set it to just one value. If you need"
+ eerror "to override the value for a single package, please use package.env"
+ eerror "or an equivalent solution (man 5 portage)."
+ echo
+ die "More than one implementation in LUA_SINGLE_TARGET."
+ fi
+
+ _lua_export "${impl}" ELUA LUA
+ _lua_wrapper_setup
+ einfo "Using ${ELUA} to build"
+ fi
+ done
+
+ if [[ ! ${ELUA} ]]; then
+ eerror "No Lua implementation selected for the build. Please set"
+ eerror "the LUA_SINGLE_TARGET variable in your make.conf to one"
+ eerror "of the following values:"
+ eerror
+ eerror "${_LUA_SUPPORTED_IMPLS[@]}"
+ echo
+ die "No supported Lua implementation in LUA_SINGLE_TARGET."
+ fi
+}
+
+# @FUNCTION: lua-single_pkg_setup
+# @DESCRIPTION:
+# Runs lua_setup.
+lua-single_pkg_setup() {
+ debug-print-function ${FUNCNAME} "${@}"
+
+ [[ ${MERGE_TYPE} != binary ]] && lua_setup
+}
+
+_LUA_SINGLE_R0=1
+fi
--
2.26.2
^ permalink raw reply related [flat|nested] 8+ messages in thread