Makefile

#!/usr/bin/env make
#
# polite.english.words - sorted list of polite words from the English language
#
# Copyright (c) 2024 by Landon Curt Noll.  All Rights Reserved.
#
# Permission to use, copy, modify, and distribute this software and
# its documentation for any purpose and without fee is hereby granted,
# provided that the above copyright, this permission notice and text
# this comment, and the disclaimer below appear in all of the following:
#
#       supporting documentation
#       source copies
#       source works derived from this source
#       binaries derived from this source or from derived source
#
# LANDON CURT NOLL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
# INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO
# EVENT SHALL LANDON CURT NOLL BE LIABLE FOR ANY SPECIAL, INDIRECT OR
# CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
# USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
#
# chongo (Landon Curt Noll, http://www.isthe.com/chongo/index.html) /\oo/\
#
# Share and enjoy! :-)

#############
# utilities #
#############

CHMOD= chmod
CP= cp
INSTALL= install
MV= mv
RM= rm
SHELL= bash
SORT= sort
UNIQ= uniq

######################
# target information #
######################

DESTDIR= /usr/local/share/polite.words

TARGETS= polite.english.words.txt

######################################
# all - default rule - must be first #
######################################

all: ${TARGETS}

#################################################
# .PHONY list of rules that do not create files #
#################################################

.PHONY: all configure clean clobber install sort

# Perform a canonical sort, removing duplicate words
#
# NOTE: We cannot use sort -d -f -u because that would remove words
# 	that differ by letter case.
#
sort: polite.english.words.txt
	TMP=".tmp.$$.polite.english.words.txt.tmp" ; \
	    ${RM} -f "$$TMP" ; \
	    LC_ALL=C ${SORT} -d -f polite.english.words.txt | ${UNIQ} > "$$TMP" ; \
	    ${MV} -f "$$TMP" polite.english.words.txt

###################################
# standard Makefile utility rules #
###################################

configure:
	@echo nothing to configure

clean:
	@:

clobber: clean
	${RM} -f .tmp.*.polite.english.words.txt.tmp

install: all sort
	${INSTALL} -m 0755 -d ${DESTDIR}
	${INSTALL} -m 0444 ${TARGETS} ${DESTDIR}