# Copyright (C) 2008-2010 by Oleksandr Gavenko <gavenkoa@gmail.com>

#

# You can do anything with this file without any warranty.

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

# Standard Makefile settings.

SHELL = /bin/bash

export PATH := /bin:/usr/bin:${PATH}

# Disable built in pattern rules.

MAKEFLAGS += -r

# Disable built in variables.

MAKEFLAGS += -R

# Disable built in suffix rules.

.SUFFIXES:

# Delete target file if command fails.

.DELETE_ON_ERROR:

# Default target.

.DEFAULT_GOAL = all

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

# Helper definition.

which = $(firstword $(foreach item,$(subst :, ,$(PATH)),$(wildcard $(item)/$1)))

curdir := $(realpath .)

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

# Platform/environment definition.

ifeq '' '$(HOME)'

  $(error Home env var not set!)

endif

host_os = unix

ifneq '' '$(COMSPEC)'

  ifneq '' '$(WINDIR)'

    # Probably under Windows.

    host_os = windows

  endif

endif

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

# Installation directories and files.

emacsdir := $(HOME)/.emacs.d

mylispdir := $(emacsdir)/my

# Compatibility version.

COMPAT_VER := 1

COMPAT_FILE := $(emacsdir)/.emacs-ver

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

# Build tool definition/switches.

# In order to byte-compile under Windows install Cygwin Emacs to PATH!

EMACS = emacs

RST2HTML = rst2html

ifeq '$(host_os)' 'windows'

  RST2HTML = rst2html.py

endif

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

# Proj dirs/files.

EL_FILES := $(wildcard *.el)

ELC_FILES := $(EL_FILES:.el=.elc)

RST_FILES := $(wildcard *.rst)

HTML_FILES := $(RST_FILES:.rst=.html)

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

# Targets.

.PHONY: all

all: install

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

# Deploy targets.

.PHONY: deploy

deploy: deploy2defun deploy2sf

DEFUN_USER ?= user

DEFUN_HG_SRV ?= hg.defun.work

DEFUN_HG_DIR ?= /srv/hg/dot-emacs

.PHONY: deploy2defun

deploy2defun: deploy2defun-src

.PHONY: deploy2defun-src

deploy2defun-src:

	hg push ssh://$(DEFUN_USER)@$(DEFUN_HG_SRV)/$(DEFUN_HG_DIR) || [ $$? = 1 ]

SF_USER ?= gavenkoa

.PHONY: deploy2sf

deploy2sf: deploy2sf-src

.PHONY: deploy2sf-src

deploy2sf-src:

	hg push ssh://$(SF_USER)@hg.code.sf.net/u/$(SF_USER)/dot-emacs || [ $$? = 1 ]

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

# Install/uninstall targets.

.PHONY: check-install-comapt

check-install-comapt:

	\

if [ -f ~/.emacs ]; then \

  echo Old style install detected, run '"$(MAKE) upgrade"' first; \

  false; \

fi

	\

if [ -f $(emacsdir)/init.el ]; then \

  if [ ! -f $(COMPAT_FILE) ]; then \

    echo $(COMPAT_FILE) missing, run '"$(MAKE) upgrade"' first; \

    exit 1; \

  fi; \

fi

	read ver <$(COMPAT_FILE); if [ "$$ver" -ne $(COMPAT_VER) ]; then echo "*** "Run '"$(MAKE) upgrade"' first" ***"; exit 1; fi

.PHONY: upgrade

upgrade:

	\

if [ -f $(COMPAT_FILE) ]; then \

  read ver <$(COMPAT_FILE); \

  if [ "$$ver" -gt $(COMPAT_VER) ]; then \

    echo "*** "Project is too old, downgrade is not possible..." ***"; \

    exit 1; \

  fi; \

else \

  ver=0; \

fi; \

for ((i=ver+1; i <= $(COMPAT_VER); i++)); do \

  $(SHELL) upgrade/$$i.bash $(emacsdir); \

done

	$(MAKE) install

.PHONY: install-all

install-all: install

	cp .emacs-pre $(emacsdir)/.emacs-pre

	cp .emacs-post $(emacsdir)/.emacs-post

define cleanup_mylispdir

  find $(mylispdir) -type f '(' -name '*.el' -o -name '*.elc' -o -name '*~' ')' -exec rm {} ';'

endef

.PHONY: install

install: check-install-comapt

	mkdir -p $(mylispdir)

	echo $(COMPAT_VER) >$(COMPAT_FILE)

	$(cleanup_mylispdir)

	for file in .emacs-pre .emacs-post; do \

		[ -f $(emacsdir)/$$file ] || cp $$file $(emacsdir)/$$file; \

	done

	\

cp .emacs-defs init.el .emacs-my $(emacsdir)

	\

mkdir -p $(emacsdir)/server $(HOME)/.gnus/scores; \

cp all.SCORE $(HOME)/.gnus/scores

	\

cp -f $(EL_FILES) $(mylispdir); \

./.emacs-autogen.sh $(emacsdir)/.emacs-autogen; \

$(EMACS) --batch -Q --eval='(let ((generated-autoload-file "$(mylispdir)/loaddefs.el")) (update-directory-autoloads "$(mylispdir)"))'

	\

$(EMACS) --batch --load "$(curdir)/.emacs-defs" -f 'my-load.add-my-loadpaths' --load "$(emacsdir)/.emacs-pre" \

  --eval='(byte-compile-file "$(emacsdir)/.emacs-my")' --eval='(byte-force-recompile "$(mylispdir)")'

	cp -r srecode/ $(HOME)/.emacs.d/

.PHONY: uninstall

uninstall:

	rm -f $(patsubst %,$(emacsdir)/%, init.el .emacs-defs .emacs-my .emacs-autogen)

	$(cleanup_mylispdir)

	rm -f -r $(emacsdir)/srecode

.PHONY: tar

tar:

	tar cf dot-emacs.tar .emacs .emacs-my

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

# Check targets.

.PHONY: check

check: check-byte-compile

.PHONY: check-byte-compile

check-byte-compile:

	\

$(EMACS) -f package-initialize --eval '(push "." load-path)'  --batch -f batch-byte-compile $(filter-out init.el,$(EL_FILES)) || :

	rm -f $(ELC_FILES)

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

# Documentation targets.

.PHONY: html

html: $(HTML_FILES)

$(HTML_FILES): %.html: %.rst

	$(RST2HTML) --stylesheet=rst.css $*.rst $@

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

# Clean targets.

.PHONY: distclean

distclean: clean

.PHONY: clean

clean:

	rm -f dot-emacs.tar $(HTML_FILES) $(ELC_FILES)