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create.mk
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create.mk
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# $NetBSD: create.mk,v 1.4 2009/03/17 22:13:36 rillig Exp $
#
# Copyright (c) 2005, 2006 The NetBSD Foundation, Inc.
# All rights reserved.
#
# This code is derived from software contributed to The NetBSD Foundation
# by Johnny C. Lam.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. All advertising materials mentioning features or use of this software
# must display the following acknowledgement:
# This product includes software developed by the NetBSD
# Foundation, Inc. and its contributors.
# 4. Neither the name of The NetBSD Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
# ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
#
# This Makefile fragment creates tools under ${TOOLS_DIR} that are
# found before similarly-named tools in the system path.
#
# TOOLS_CREATE is a whitespace-separated list of tools for which a
# corresponding tool is created. Either a wrapper script or a
# symlink is created depending on the tool that is being
# overridden.
#
# The following variables specify the details of each <tool>:
#
# TOOLS_CMD.<tool> is the path to the tool under ${TOOLS_DIR}. This
# variable is optional, and if left unspecified it defaults to
# ${TOOLS_DIRS}/bin/<tool>.
#
# TOOLS_ALIASES.<tool> is a whitespace-separated list of names for
# which <tool> should also be created under ${TOOLS_DIR}.
#
# TOOLS_PATH.<tool> is the path to the actual command that is
# invoked when ${TOOLS_CMD.<tool>} is called. If <tool> should
# be a symlink, then this variable is required and should be a
# full path. If <tool> should be a wrapper, then this variable
# is required unless TOOLS_SCRIPT.<tool> is defined (see below).
#
# The following variables specify further details of each <tool> and
# if set, cause a wrapper script to be created.
#
# TOOLS_ARGS.<tool> additional arguments that are passed to the real
# command ahead of any command-line arguments. This variable is
# optional.
#
# TOOLS_SCRIPT.<tool> specifies the Bourne-shell scriptlet to embed
# in the wrapper script that is executed when <tool> is called.
# This variable is optional, and if left unspecified, then this
# is built up from TOOLS_PATH.<tool> and TOOLS_ARGS.<tool> by
# default.
#
# The following variables provide shortcuts for creating certain classes
# of tools:
#
# TOOLS_NOOP is a list of tools that do nothing and return true.
#
# TOOLS_BROKEN is a list of tools that do nothing and return false.
#
# TOOLS_GNU_MISSING is a list of tools for which the GNU missing
# script is invoked in place of the real tool. This is used
# primarily to hide GNU auto* tools.
#
# TOOLS_FAIL is a list of tools that return false and record their
# call in the .warning directory, which is later shown.
#
######################################################################
.for _t_ in ${TOOLS_NOOP}
TOOLS_CREATE+= ${_t_}
TOOLS_SCRIPT.${_t_}?= exit 0
.endfor
.for _t_ in ${TOOLS_BROKEN}
TOOLS_CREATE+= ${_t_}
TOOLS_SCRIPT.${_t_}?= exit 1
.endfor
.for _t_ in ${TOOLS_FAIL}
TOOLS_CREATE+= ${_t_}
TOOLS_SCRIPT.${_t_}?= \
${DELAYED_WARNING_MSG} "Please add USE_TOOLS+=${_t_} to the package Makefile."; \
${FAIL_MSG} "To use this tool, add USE_TOOLS+=${_t_} to the package Makefile."
.endfor
.for _t_ in ${TOOLS_GNU_MISSING}
TOOLS_CREATE+= ${_t_}
TOOLS_PATH.${_t_}?= ${PKGSRCDIR}/mk/gnu-config/missing
TOOLS_SCRIPT.${_t_}?= ${TOOLS_PATH.${_t_}} ${_t_:T:C/-[0-9].*$//}
.endfor
######################################################################
# These tools are used in the targets that actually create the wrappers
# and symlinks. We define them here so that as a fallback, we'll just
# use the ones in the PATH. This makes the tools framework more
# standalone.
CHMOD?= chmod
ECHO?= echo
FALSE?= false
LN?= ln
MKDIR?= mkdir -p
######################################################################
# If the command line was defined, then we create a wrapper.
# If the real command isn't a full path, then we create a wrapper.
# If some command arguments were given, then we create a wrapper.
# Otherwise, we create a symlink.
#
# By default, the tool in ${TOOLS_DIR} will be in the "bin" directory
# and will be called <tool>.
#
# The default wrapper script will invoke the real command, followed
# by any arguments specified in TOOLS_ARGS.*, followed by any
# command-line arguments passed to the wrapper script.
#
.for _t_ in ${TOOLS_CREATE}
TOOLS_CMD.${_t_}?= ${TOOLS_DIR}/bin/${_t_}
TOOLS_PATH.${_t_}?= ${FALSE}
TOOLS_SCRIPT_DFLT.${_t_}= \
${TOOLS_PATH.${_t_}} ${TOOLS_ARGS.${_t_}} "$$@"
override-tools: ${TOOLS_CMD.${_t_}}
${TOOLS_CMD.${_t_}}:
${RUN} ${TEST} -d ${.TARGET:H:Q} || ${MKDIR} ${.TARGET:H:Q}
${RUN} \
if ${TEST} -n ${TOOLS_SCRIPT.${_t_}:Q}""; then \
create=wrapper; \
script=${TOOLS_SCRIPT.${_t_}:Q}; \
elif ${TEST} -n ${TOOLS_PATH.${_t_}:Q}""; then \
if ${TEST} -n ${TOOLS_ARGS.${_t_}:Q}""; then \
create=wrapper; \
script=${TOOLS_SCRIPT_DFLT.${_t_}:Q}; \
else \
case ${TOOLS_PATH.${_t_}:Q}"" in \
/*) create=symlink ;; \
*) create=wrapper; \
script=${TOOLS_SCRIPT_DFLT.${_t_}:Q}; \
esac; \
fi; \
else \
create=symlink; \
fi; \
case "$$create" in \
wrapper) \
{ ${ECHO} '#!'${TOOLS_SHELL:Q}; \
${ECHO} 'wrapperlog="$${TOOLS_WRAPPER_LOG-'${_TOOLS_WRAP_LOG:Q}'}"'; \
${ECHO} '${ECHO} "[*] "'${.TARGET:Q}'" $$@" >> $$wrapperlog'; \
${ECHO} "${ECHO} \"<.> $$script\" >> \$$wrapperlog"; \
${ECHO} "$$script"; \
} > ${.TARGET:Q}; \
${CHMOD} +x ${.TARGET:Q}; \
;; \
*) \
${LN} -fs ${TOOLS_PATH.${_t_}:Q} ${.TARGET:Q}; \
;; \
esac
. for _a_ in ${TOOLS_ALIASES.${_t_}}
${RUN} \
${TEST} ${.TARGET:Q} = ${.TARGET:H:Q}/${_a_} || \
${LN} -fs ${.TARGET:T:Q} ${.TARGET:H:Q}/${_a_}
. endfor
.endfor