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# File: Makefile for arandr-trayicon
# Location: arandr-trayicon source package
# Author: bgstack15
# Startdate: 2022-12-02
# Title: Makefile for arandr-trayicon source package
# Purpose: To use traditional Unix make utility
# History:
# Usage:
# Reference:
#    Makefiles from keyboard-leds-trayicons, bgscripts
# Improve:
# Document:
#    Includes a nice way to dynamically generate dependencies as self-reported by all the files.
# Dependencies:
#    build-devuan: txt2man, bgscripts-core

APPNAME    = arandr-trayicon
APPVERSION = 0.0.1
SRCDIR     = $(CURDIR)
prefix     = /usr
SYSCONFDIR = $(DESTDIR)/etc
BINDIR     = $(DESTDIR)$(prefix)/bin
SHAREDIR   = $(DESTDIR)$(prefix)/share
DOCDIR     = $(SHAREDIR)/doc/${APPNAME}
MANDIR     = $(SHAREDIR)/man
APPSDIR    = $(SHAREDIR)/applications
ICONDIR    = $(SHAREDIR)/icons
SYSCONFDIR = $(DESTDIR)/etc
XDGAUTODIR = $(SYSCONFDIR)/xdg/autostart

awkbin     :=$(shell which awk)
cpbin      :=$(shell which cp)
echobin    :=$(shell which echo)
findbin    :=$(shell which find)
grepbin    :=$(shell which grep)
installbin :=$(shell which install)
lnbin      :=$(shell which ln)
rmbin      :=$(shell which rm)
sedbin     :=$(shell which sed)
sortbin    :=$(shell which sort)
trbin      :=$(shell which tr)
truebin    :=$(shell which true)
uniqbin    :=$(shell which uniq)
xargsbin   :=$(shell which xargs)
txt2manwrapper :=$(shell which txt2man-wrapper)
gzipbin    :=$(shell which gzip)

SEPARATOR ?=,

all: build_man

.PHONY: clean install install_files build_man uninstall list deplist deplist_opts

list:
	@$(MAKE) -pRrq -f $(lastword $(MAKEFILE_LIST)) : 2>/dev/null | ${awkbin} -v RS= -F: '/^# File/,/^# Finished Make data base/ {if ($$1 !~ "^[#.]") {print $$1}}' | ${sortbin} | ${grepbin} -E -v -e '^[^[:alnum:]]' -e '^$@$$'

deplist:
	@if test -z "$(DISTRO)" ; then ${echobin} "Please run \`make deplist\` with DISTRO= one of: `make deplist_opts 2>&1 1>/dev/null | ${xargsbin}`. Aborted." ; exit 1 ; fi
	@${grepbin} -h --exclude='Makefile' --exclude-dir='doc' -A5 -riIE dependencies $(SRCDIR) | ${awkbin} -v 'distro=$(DISTRO)' 'tolower($$0) ~ distro {$$1="";$$2="";print}' | ${trbin} ',' '\n' | ${sedbin} -r -e 's/^\s*//;' -e 's/\*$$//;' | ${sortbin} | ${uniqbin} | ${sedbin} -r -e 's/$$/$(SEPARATOR)/' | ${xargsbin}

deplist_opts:
	@${echobin} "devuan" 1>&2

install: build_man install_files

install_files:
	@ls usr/share/man/man*/*gz 1>/dev/null 2>&1 && echo "Including man pages." || :
	@${echobin} Installing files to ${DESTDIR}
	for td in $$( ${findbin} ${SRCDIR} -type d ! -name '.*.swp' ! -name 'Makefile' -printf '%P\n' | ${sedbin} -r -e "s:etc/sysconfig:${DEFAULTDIR}:" -e "s:${DESTDIR}/?::" ) ; do ${installbin} -m0755 -d ${DESTDIR}/$${td} ; done
	for tf in $$( ${findbin} ${SRCDIR} ! -type d ! -name '.*.swp' ! -name 'Makefile' ! \( -path '*/man/*' -name '*.txt' \) ! -path '*/sysconfig/*' -printf '%P\n' ) ; do MODE=0644 ; echo "$${tf}" | grep -qE "(bin|libexec|deprecated|\/screenlayouts)\/" && MODE=0755 ; ${installbin} -m$${MODE} ${SRCDIR}/$${tf} ${DESTDIR}/$${tf} ; done
	@# sysconfig/default dir

MAN_TXT:=$(wildcard usr/share/man/man*/*.txt)
MAN_GZ:= $(subst .txt,.gz,$(MAN_TXT))

build_man: $(MAN_GZ)

$(MAN_GZ): %.gz: %.txt
	${txt2manwrapper} - < $< | ${gzipbin} > $@

uninstall:
	@${echobin} SRCDIR=${SRCDIR}
	${rmbin} -f $$( ${findbin} ${SRCDIR} -mindepth 1 ! -type d -printf '%p\n' | ${sedbin} -r -e "s:^${SRCDIR}:${DESTDIR}:" ) $$( ${findbin} ${SRCDIR}/usr/share/man ! -type d -printf '%p\n' | ${sedbin} -r -e "s:^${SRCDIR}:${DESTDIR}:" -r -e 's/\.md$$/.gz/;' )

	# remove all installed directories that are now blank.
	for word in $$( ${findbin} ${SRCDIR} -mindepth 1 -type d -printf '%p\n' | ${sedbin} -r -e "s:^${SRCDIR}:${DESTDIR}:" | ${awkbin} '{ print length, $$0 }' | sort -rn | ${awkbin} '{print $$2}' ) ; do ${findbin} $${word} -mindepth 1 1>/dev/null 2>&1 | read 1>/dev/null 2>&1 || { rmdir "$${word}" 2>/dev/null || ${truebin} ; } ;  done

clean:
	-@#${echobin} "target $@ not implemented yet! Gotta say unh."
	-${rmbin} -f usr/share/man/man*/*.gz || :
bgstack15