Makefile

PACKAGE := maxbutt
VERSION := $(shell git describe --tags 2> /dev/null)

prefix      = $(HOME)/code/emacs-ext
exec_prefix = ${prefix}
bindir      = ${exec_prefix}/bin
datadir     = ${prefix}
infodir     = ${prefix}/info
erlc        = erlc
emacs       = emacs

ELISP_DIR   = ${datadir}/maxbutt/elisp
EBIN_DIR    = ${datadir}/maxbutt/ebin
ERL_SRC_DIR = ${datadir}/maxbutt/src

########################################
## Main part

ERL_SRC := $(wildcard src/*.erl)
ERL_OBJ := $(patsubst src/%.erl,ebin/%.beam,${ERL_SRC})

ELISP_SRC := $(wildcard elisp/*.el)
ELISP_OBJ := $(patsubst %.el,%.elc,${ELISP_SRC})

## Compile in explicit dependency order to avoid stale .elc loading issues.
ELISP_COMPILE_ORDER := \
	elisp/mcase.el \
	elisp/erlext.el \
	elisp/epmd.el \
	elisp/net-fsm.el \
	elisp/erl.el \
	elisp/erl-service.el \
	elisp/derl.el \
	elisp/distel.el \
	elisp/distel-debug.el \
	elisp/distel-ie.el \
	elisp/erl-example.el \
	elisp/erl-test.el \
	elisp/ssb-feed.el

ELISP_SOME_SRC := $(filter-out elisp/maxbutt%.el,${ELISP_SRC})
ELISP_SOME_OBJ := $(patsubst %.el,%.elc,${ELISP_SOME_SRC})

## Erlang tools emacs dir (for erlang-mode, needed by distel et al.)
ERLANG_EMACS_DIR := $(shell erl -eval 'io:format("~s/emacs",[code:lib_dir(tools)])' -s init stop -noshell 2>/dev/null)

DOC_SRC  := doc/maxbutt.texi
INFO_OBJ := doc/maxbutt.info
PS_OBJ   := doc/maxbutt.ps

OBJECTS := ${ERL_OBJ} ${ELISP_OBJ} ${INFO_OBJ} ${PS_OBJ}

base: ebin ${ERL_OBJ} ${ELISP_SOME_OBJ}
many: ebin ${ERL_OBJ} ${ELISP_OBJ}
info: ${INFO_OBJ}
erl: ${ERL_OBJ}
postscript: ${PS_OBJ}
all: base info postscript
ebin:
	mkdir ebin

########################################
## Rules
.PHONY: release release_patch release_minor release_major

release: release_patch

release_major:
	./release.sh major

release_minor:
	./release.sh minor

release_patch:
	./release.sh patch

## Erlang
ebin/%.beam: src/%.erl
	${erlc} -W -o ebin +debug_info $<

## Elisp — compile all in one session, in dependency order, without loading
## ~/.emacs (which would pull in stale .elc files and corrupt doc-string offsets).
${ELISP_SOME_OBJ}: ${ELISP_SOME_SRC}
	rm -f elisp/*.elc
	${emacs} -batch \
		-L "${ERLANG_EMACS_DIR}" \
		-L elisp \
		-L "${datadir}/markdown-mode" \
		--eval "(require 'erlang-start)" \
		--eval "(setq byte-compile-dynamic-docstrings nil)" \
		-f batch-byte-compile ${ELISP_COMPILE_ORDER}

## Info documentation
doc/distel.info: ${DOC_SRC}
	command -v makeinfo && makeinfo -o $@ $< || echo fail

## Postscript documentation
doc/distel.ps: doc/maxbutt.dvi
	command -v dvips && dvips -o $@ $< || echo fail

doc/distel.dvi: ${DOC_SRC}
	command -v texi2dvi && (cd doc; texi2dvi maxbutt.texi) || echo fail

########################################

clean:
	-rm -f ${OBJECTS} 2>/dev/null

distclean: clean
	-rm -f *~ */*~ 2>/dev/null

install: base
	@echo "* Installing Emacs Lisp Library"
	install -m 775 -d ${ELISP_DIR} ${EBIN_DIR} ${ERL_SRC_DIR}
	install -m 775 elisp/*.el elisp/*.elc ${ELISP_DIR}
	@echo
	@echo "* Installing Erlang Library"
	install -m 775 ebin/*.beam ${EBIN_DIR}
	install -m 775 src/*.erl ${ERL_SRC_DIR}
	@echo
	@echo "*** Successfully installed. See README for usage instructions."
	@echo

info_install: info
	  @echo "* Installing Info documentation"
	  install -m 775 -d ${infodir}
	  cp doc/maxbutt.info ${infodir}
# NB: Debian's not-GNU-compatible install-info needs "--section Emacs Emacs"
	  install-info --info-dir=${infodir} --section Emacs \
		       ${infodir}/maxbutt.info

# This needs a bit of upgrading, it's been ages since I've used cvs, does anyone still?
dist: always distclean
	cd .. && ln -sf ${PACKAGE} ${PACKAGE}-${VERSION}
	cd .. && (find ${PACKAGE}-${VERSION} -follow -type f | \
		  egrep -v '(^attic/)|/CVS/|\.cvsignore|\.rej|\.orig|\#' | \
		  xargs tar czf ${PACKAGE}-${VERSION}.tar.gz)
	rm ../${PACKAGE}-${VERSION}

wc:
	@echo "* Emacs Lisp"
	@wc -l */*.el | sort -nr
	@echo "* Erlang"
	@wc -l */*.erl | sort -nr
	@echo "* C"
	@wc -l */*.c | sort -nr

.INTERMEDIATE: doc/maxbutt.dvi
.PHONY: always