#!/bin/bash -l
# Copyright (C) 2016 Ian Kelling

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at

#     http://www.apache.org/licenses/LICENSE-2.0

# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?"' ERR

#set -x
# arg = git commit to check out
# -r = don't recompile from scratch
# -u = update sources

# stop if any the command fails
update=false
recompile=true

while [[ $1 == -* ]]; do
    case $1 in
        --no-r) recompile=false; shift ;;
        -u) update=true; shift ;;
        --) break ;;
    esac
done

e() { echo "$@"; "$@"; }

export CFLAGS="-Og -g3"

# gawk and attr were no longer automatically installed in stretch
logq pi texlive hunspell git gawk attr
case $(distro-name) in
    fedora )
        # before i learned the builddep command, i identified these
        # dependencies. Not sure if the builddep took care of them all
        # gtk3-devel libXpm-devel libjpeg-turbo-devel libtiff-devel giflib-devel ncurses-devel gnutls-devel libxml2-devel libotf-devel GConf2-devel gpm-devel librsvg2-devel ImageMagick-devel m17n-lib-devel libselinux-devel

        logq s yum-builddep -y emacs
        logq pi texlive-dvipng
        ;;&
    debian|ubuntu)
        # oddly, on ubuntu 14.04 this installs postfix, but I dun care
        # ubuntu 14.04 gave this error message
        # Unable to satisfy the build-depends: Build-Depends: libpng-dev
        # this is satisfied by dvipng. the build-dep is just wrong
        # minor bug I'm not going to bother reporting
        logq p -y build-dep emacs
        # fyi libmagick is broken right now because it uses a fork which is waiting for emacs to support it
        # not sure how many of these are satisfied by the prev command,
        # but from the log, it looks like none of them
        logq pi libacl1-dev libselinux-dev libm17n-dev libgtk-3-dev \
             librsvg2-dev libgpm-dev libgconf2-dev libotf-dev libxml2-dev \
             automake1.11 libgnutls28-dev libncurses-dev libxpm-dev libjpeg-dev \
             libgif-dev libtiff-dev texinfo dvipng
        ;;&
    debian)
        # included in dependencies on other distros, todo, check on ubuntu
        logq pi suckless-tools
        ;;
esac



#building emacs, INSTALL.BZR

#git repo
dir=/a/opt/emacs-`distro-name``debian-archive`

if [[ ! -e $dir ]]; then
    cp -r /a/opt/emacs $dir
    recompile=true
fi
cd $dir

if $recompile; then
    # todo, consider when this should be uncommented
    #logq s make uninstall
    find ~/.emacs.d/ -name '*.elc' -delete

    # git version
    if [[ $1 ]]; then
        e i clean -xxxfd
    elif $update; then
        e i fetch
        e i clean -xxxffd
        e i reset --hard origin/master
        e i clean -xxxffd
    fi

    # autogen is usually only for the first build, assume it works
    logq ./autogen.sh
    # I tried changing O2 to O3, don't know if it made it faster or slower so I went back to 02.
    # Also, link-time-optimization based on ./INSTALL

    # for debugging, use -Og, or -O0 to make debug really correspond to sources
    # dunno why I have had -std=gnu99 in the past
    #CFLAGS='-std=gnu99 -g3 -Og'
    export CFLAGS='-g3 -Og'
    #CFLAGS='-std=gnu99 -g3 -O2' logq ./configure --enable-link-time-optimization
    # on ubuntu 12.04, the above fails, says my c compiler won't work, so intead, just use defaults
    logq ./configure
    logq make -j `nproc` bootstrap
fi

# temporarily for testing multiple versions

logq sudo make install

# make emacs always work for root
s lnf /usr/local/bin/emacs /usr/bin



logq emacs --batch -l ~/.emacs.d/init.el -l ~/.emacs.d/compile-init-dir.el

# not keeping up with the latest org-mode development anymore
#~/bin/buildscripts/org-mode

if $update; then
    logq pi bzr
    cd ~/.emacs.d/src/mediawiki-el
    bzr pull
fi


# not keeping up with the latest gnus development.
# # instructions from the README
# # the byte-recompile-directory seems to compile gnus,
# # but gnus complains that it should be compiled when it starts
# cd ~/.emacs.d/src/gnus
# if [[ $1 == *u* ]]; then
#     i pull
# fi
# logq ./configure
# logq make