138 lines
3.6 KiB
Makefile
138 lines
3.6 KiB
Makefile
#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-#
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#> environment.mk
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#>
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#> Define global environment variables
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#>
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#> This file is typically included from the main Makefile rather called
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#> directly. Its purpose is to keep the responsbility of the main Mainfile
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#> compact. The responsbility of this Makefile is to define global
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#> environment variables, some of which it read from a user created file.
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#>
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#
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# © 2023 Andrew Stryker <axs@sdf.org>
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#
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#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-#
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# Track file name of caller
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ifdef self
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caller ::= ${self}
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endif
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self ::= $(lastword ${MAKEFILE_LIST})
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#-----------------------------------------------------------------------------#
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#
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# Configuration
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#
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#-----------------------------------------------------------------------------#
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ifndef ENV_LOADED
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# Track loading the environment
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ENV_LOADED ::= 1
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export ENV_LOADED
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# Avoid an unexpected shell environment
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SHELL = /bin/sh
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export SHELL
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# User-defined configuration file
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SITE_ENV ?= content/site-env
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SITE_ENV ::= $(strip ${SITE_ENV})
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ifeq ($(strip $(shell [ -r ${SITE_ENV} ] && echo ${SITE_ENV})),)
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$(info Generate a site configuration file first via `make configure`)
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$(error Configuration file ${site_env} not readable.)
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else
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include ${SITE_ENV}
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endif
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# Base/root directory of the build system. Allows us to use absolute paths.
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MAKO_DIR ?= ${CURDIR}
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export MAKO_DIR
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# Place for user content
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CONTENT ?= ${MAKO_DIR}/content
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CONTENT ::= $(strip ${CONTENT})
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export CONTENT
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# Place for intermediate files
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WORKING ?= ${MAKO_DIR}/workspace
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WORKING ::= $(strip ${WORKING})
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export WORKING
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# Place for site files ready to be transferred to the site
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STAGING ?= ${MAKO_DIR}/staging
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STAGING ::= $(strip ${STAGING})
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export STAGING
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# Place for section-specfic working and staging files as recurive variables
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SECTION = $(shell basename ${CURDIR})
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export SECTION
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# Create shortcuts
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STG_SECTION = ${STAGING}/${SECTION}
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WRK_SECTION = ${WORKING}/${SECTION}
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SECTION_DIRS = ${STG_SECTION} ${WRK_SECTION}
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export STG_SECTION
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export WRK_SECTION
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export SECTION_DIRS
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# Makefiles
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CURATE_MAKE ::= ${MAKO_DIR}/curate.mk
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INDEX_MAKE ::= ${MAKO_DIR}/index.mk
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# M4 fencing for raw text
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FENCE ::= ${MAKO_DIR}/fence.m4
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export FENCE
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# Help generation
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AWKHELP ::= ${MAKO_DIR}/generate-help.awk
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export AWKHELP
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endif
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#-----------------------------------------------------------------------------#
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#
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# User interface targets
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#
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#> User facing targets:
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#>
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#-----------------------------------------------------------------------------#
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# Only define targets if called directly
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ifeq ($(firstword ${MAKEFILE_LIST}), ${self})
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.PHONY: default show help
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default: show
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show: #> Show key variables
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@echo "Key variables defined in ${self}:"
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@echo
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@echo "\tBase/root directory of the build system..... ${MAKO_DIR}"
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@echo "\tUsef-defined configuration.................. ${SITE_ENV}"
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@echo
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# future location for templates
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@echo "\tLocation of user content.................... ${CONTENT}"
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@echo "\tWorking area for intermediate files......... ${WORKING}"
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@echo "\tStaging area for site....................... ${STAGING}"
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@echo
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@echo "\tM4 macro for raw text....................... ${FENCE}"
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@echo "\tHelp generation AWK file.................... ${AWKHELP}"
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help: #> Show this help message
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@awk -f ${AWKHELP} ${self}
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endif
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#-----------------------------------------------------------------------------#
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# Restore value of self to the caller's file name if possible
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ifdef caller
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self ::= ${caller}
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endif
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#>
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#-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-#
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