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

# 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.

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)/mylisp

# Compatibility version.

COMPAT_VER := 2

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

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

# Build tool definition/switches.

# To byte-compile under Windows register Cygwin Emacs to be first in PATH!

EMACS = emacs

RST2HTML = rst2html

ifeq '$(host_os)' 'windows'

  RST2HTML = rst2html.py

endif

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

# Proj dirs/files.

EL_FILES := $(wildcard mylisp/*.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.

ifneq '' '$(filter upgrade,$(MAKECMDGOALS))'

  ifeq '' '$(filter install%,$(MAKECMDGOALS))'

    $(error "upgrade" should be invoked from "install")

  endif

endif

.PHONY: upgrade

upgrade:

	\

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

  echo An old style install detected, delete ~/.emacs first.; \

  false; \

fi

	\

[[ -f $(COMPAT_FILE) ]] || exit 0; \

read ver <$(COMPAT_FILE); \

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

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

  exit 1; \

fi; \

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

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

done

.PHONY: install-all

install-all: install

	install -m 0644 -t $(emacsdir) .emacs-pre .emacs-post

.PHONY: install-packages

install-packages:

	$(EMACS) --batch -l "$(curdir)/.emacs-defs" -f my-lisp--install-external-packages

.PHONY: install

install: upgrade

	rm -rf $(mylispdir)

	mkdir -p $(mylispdir)

	echo $(COMPAT_VER) >$(COMPAT_FILE)

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

		[[ -f $(emacsdir)/$$f ]] || install -m 0644 $$f $(emacsdir)/$$f; \

	done

	install -m 0644 -t $(emacsdir) .emacs-defs init.el .emacs-my

	mkdir -p $(emacsdir)/server

	$(SHELL) .emacs-autogen.sh $(emacsdir)/.emacs-autogen

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

	\

install -m 0644 -t $(mylispdir) $(EL_FILES); \

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

.PHONY: uninstall

uninstall:

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

	rm -rf $(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-modes check-byte-compile-dot-emacs

.PHONY: check-byte-compile-modes

check-byte-compile-modes:

	\

$(EMACS) -f package-initialize --eval '(push "mylisp" load-path)'  --batch -f batch-byte-compile $(EL_FILES) || :

	rm -f $(ELC_FILES)

.PHONY: check-byte-compile-dot-emacs

check-byte-compile-dot-emacs:

	$(EMACS) --batch --load "$(curdir)/.emacs-defs" -f 'my-lisp--load-all' --eval='(byte-compile-file ".emacs-my")'

	rm -f .emacs-my.elc

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

# 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)