compile-theme

#! /bin/bash

set -e

THEME_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

declare -a VALID_GTK_VERSIONS=(10 18 20)
declare -a VALID_FLAVORS=('luna' 'homestead' 'metallic' 'royale' 'noir' 'embedded' 'zune')

help() {
cat << EOF
help: $0 options

compile CinnXP cursor, gtk, metacity, and cinnamon themes

OPTIONS:
  -h  this...

  -a  Compile all available flavors with one command.
      Only compiles one gtk3 version at a time. Defaults for gtk
      minor verison apply here (see below)
   
  -g  Target gtk minor version. Default is "20" for gtk3.20 and higher
      For Linux Mint 17.x and 18.x pass "10" or "18" respectively

  -f  Flavor to compile (full string name) Defaults to "luna."
      Current valid options are "luna," "homestead," "metallic," "royale,"
      "noir," "embedded," and "zune"

  -n  Alternative root name for output file (default is "pkg")

  -p  Package all flavors/versions in tar.xz format for distribution
EOF
}

# TODO: add option to install to either /usr/share/ or $HOME

elementIn () {
	local e
	for e in "${@:2}"; do [[ "$e" == "$1" ]] && return 0; done
	return 1
}

validate_sassc() {
	if [ ! "$(which sassc 2> /dev/null)" ]; then
	   echo sassc not installed. See README
	   exit 1
	fi
}

validate_flavor() {
	if ! $(elementIn "$1" "${VALID_FLAVORS[@]}"); then
		echo "Invalid flavor requested."
		help
		exit
	fi
}

validate_gtk_minor_version() {
	if ! $(elementIn "$1" "${VALID_GTK_VERSIONS[@]}"); then
		echo "Invalid gtk versions requested."
		help
		exit
	fi
}

build_cursor_theme() {
	local pkg_path="$1"
	
	icon_dir="$pkg_path/CinnXP"

	echo "Building cursor theme
	"

	if [ ! -d "$icon_dir" ]; then
		mkdir -p "$icon_dir/cursors"
	fi

	cd icon-src/cursor-build

	# generate cursor files
	for i in *.cursor
	do
		filename=${i%.cursor}
		xcursorgen "$i" "$icon_dir/cursors/$filename"
	done

	cp cursor.theme "$icon_dir"
	cp thumbnail.png "$icon_dir/cursors"

	cd "$icon_dir"/cursors

	# link remaining cursor icons
	ln -s sb_v_double_arrow 00008160000006810000408080010102
	ln -s sb_h_double_arrow 028006030e0e7ebffc7f7070c0600140
	ln -s crossed_circle 03b6e0fcb3499374a867c041f52298f0
	ln -s left_ptr_watch 08e8e1c95fe2fc01f976f1e063a24ccd
	ln -s copy 1081e37283d90000800003c07f3ef6bf
	ln -s sb_h_double_arrow 14fef782d02440884392942c11205230
	ln -s sb_v_double_arrow 2870a09082c103050810ffdffffe0204
	ln -s link 3085a0e285430894940527032f8b26df
	ln -s left_ptr_watch 3ecb610c1bf2410f44200f48c40d3599
	ln -s move 4498f0e0c1937ffe01fd06f973665830
	ln -s help 5c6cd98b3f3ebcb1f9c7f1c204630408
	ln -s copy 6407b0e94181790501fd1e167b474872
	ln -s link 640fb0e74195791501fd1ed57b41487f
	ln -s move 9081237383d90e509aa00f00170e968f
	ln -s hand 9d800788f1b08800ae810202380a0822
	ln -s left_ptr arrow
	ln -s top_left_corner bd_double_arrow
	ln -s top_right_corner bottom_left_corner
	ln -s top_left_corner bottom_right_corner
	ln -s sb_v_double_arrow bottom_side
	ln -s sb_v_double_arrow bottom_tee
	ln -s top_left_corner c7088f0f3e6c8088236ef8e1e3e70000
	ln -s crosshair cross
	ln -s crosshair cross_reverse
	ln -s help d9ce0ab605698f320427677b458ad60b
	ln -s crosshair diamond_cross
	ln -s hand dnd-none
	ln -s target dotbox
	ln -s target dot_box_mask
	ln -s sb_v_double_arrow double_arrow
	ln -s right_ptr draft_large
	ln -s right_ptr draft_small
	ln -s target draped_box
	ln -s hand e29285e634086352946a0e7090d73106
	ln -s top_right_corner fcf1c3c7cd4491d801f1e1c78f100000
	ln -s top_right_corner fd_double_arrow
	ln -s hand fleur
	ln -s hand grab
	ln -s hand grabbing
	ln -s hand hand1
	ln -s hand hand2
	ln -s sb_h_double_arrow h_double_arrow
	ln -s target icon
	ln -s sb_h_double_arrow left_side
	ln -s sb_h_double_arrow left_tee
	ln -s top_right_corner ll_angle
	ln -s top_left_corner lr_angle
	ln -s crossed_circle pirate
	ln -s help question_arrow
	ln -s sb_h_double_arrow right_side
	ln -s sb_h_double_arrow right_tee
	ln -s crosshair tcross
	ln -s left_ptr top_left_arrow
	ln -s sb_v_double_arrow top_side
	ln -s sb_v_double_arrow top_tee
	ln -s top_left_corner ul_angle
	ln -s top_right_corner ur_angle
	ln -s sb_v_double_arrow v_double_arrow
	ln -s wait watch
	ln -s crossed_circle X_cursor
	ln -s ibeam xterm

	cd "$THEME_ROOT"
}

clean_scss() {
	local scss_dir="$1"

	declare -a files_to_clean=('gtk-contained.css' 'cinnamon.css')

	for file in "${files_to_clean[@]}"
	do
		if [ -e "$scss_dir/$file" ]; then
			echo "WARNING: source dir not clean (FOUND $file)"
			rm "$scss_dir/$file"
		fi
	done
}

# TODO: it's kinda strange that I forbid scss on gtk3.10...but really I don't
# feel like converting it
build_gtk3_theme() {
	local theme_dest="$1"
	local theme_src="$2"
	local gtk3_minor_revision="$3"

	echo " - now building gtk3 theme
	"

	local scss=true
	
	if [ "$gtk3_minor_revision" -lt 16 ]; then
		scss=false
	fi

	if $scss; then
		clean_scss "$theme_src/gtk-3.$gtk3_minor_revision"
	fi
	
	# make new gtk-3.0 dir in target dir
	if [ ! -d "$theme_dest" ]; then
		mkdir -p "$theme_dest/gtk-3.0"
	fi
	
	# copy gtk3 to tmp working directory (resolve symlinks)
	build_path="/tmp/gtk-3.0"
	cp -rL "$theme_src/gtk-3.$gtk3_minor_revision" "$build_path"
	cd "$build_path"

	if $scss; then
		./parse-sass.sh > /dev/null
		
		# change compiled files here (currently uses all png images and gtk-contained.css files)
		files=$(find . -type  f \( -name "*.png" ! -name "thumbnail.png" -or -name "*gtk-contained.css" \))

		resource_file="gtk-contained.css"
	else
		files=$(find . -type  f \( -name "*.png" -or -name "*.css" \))
		resource_file="gtk.css"
	fi
	
	# build xml file for gtk.gresource
	files=${files//.$'\n'/}
	files=${files//'./'/'    <file>'}
	files=${files//$'\n'/'</file>'$'\n'}
	files="$files"'</file>'$'\n'

	resource_path="/org/gnome/$theme_folder_name"
	xml_path="/tmp/gresources.xml"

	header="<?xml version=\"1.0\" encoding=\"UTF-8\"?>
	<gresources>
	  <gresource prefix=\"$resource_path\">
	"
	footer="  </gresource>
	</gresources>"

	echo "$header$files$footer" > "$xml_path"

	# build gtk3 resources file
	glib-compile-resources --target="$theme_dest/gtk-3.0/gtk.gresource" "/tmp/gresources.xml"

	# copy thumbnail
	cp "$theme_src/thumbnail-gtk.png" "$theme_dest/gtk-3.0/thumbnail.png"
	
	# make gtk.css to point to correct resource
	echo "@import url(\"resource://$resource_path/$resource_file\");" > "$theme_dest/gtk-3.0/gtk.css"

	rm "$xml_path"
	rm -r "$build_path"
	
	cd "$THEME_ROOT"
}

build_cinnamon_theme() {
	local theme_dir="$1"
	local theme_src="$2"
	
	echo " - now building cinnamon theme
	"

	clean_scss "$theme_src/cinnamon"

	# make new cinnamon dir in target dir
	if [ ! -d "$theme_dir" ]; then
		mkdir -p "$theme_dir/cinnamon"
	fi

	# copy cinnamon to tmp working directory (resolve symlinks)
	build_path="$theme_dir/cinnamon"
	cp -rL "$theme_src/cinnamon" "$build_path"
	cd "$build_path"

	./parse-sass.sh > /dev/null

	# remove building files
	rm README parse-sass.sh *.scss

	cd "$THEME_ROOT"
}

build_flavor() {
	local pkg_path="$1"
	local flavor="$2"
	local gtk3_minor_revision="$3"
	
	theme_folder_name="CinnXP-${flavor^}"
	
	theme_src="$THEME_ROOT/theme-src/flavors/$flavor"
	theme_dest="$pkg_path/$theme_folder_name"

	echo "Building flavor: $flavor (gtk3.$gtk3_minor_revision)"

	build_gtk3_theme "$theme_dest" "$theme_src" "$gtk3_minor_revision"
	build_cinnamon_theme "$theme_dest" "$theme_src"

	# copy everything else
	echo " - now copying gtk2 and metacity themes
	"

	cp -rL "$theme_src/"{gtk-2.0,index.theme} "$theme_dest"
	cp -r "$theme_src/metacity-1" "$theme_dest"
}

build_all_flavors() {
	local pkg_path="$1"
	local gtk3_minor_revision="$2"

	validate_gtk_minor_version "$gtk3_minor_revision"

	build_cursor_theme "$pkg_path/usr/share/icons"

	for flavor in "${VALID_FLAVORS[@]}"
	do
		build_flavor "$pkg_path/usr/share/themes" "$flavor" "$gtk3_minor_revision"
	done
}

package_all() {
	local cursor_dest="$THEME_ROOT/CinnXP_Cursors"
	build_cursor_theme "$cursor_dest"
	tar cJPf "$cursor_dest.tar.xz" "CinnXP_Cursors"
	rm -r "$cursor_dest"

	for version in "${VALID_GTK_VERSIONS[@]}"
	do
		local version_dest="$THEME_ROOT/CinnXP_themes_gtk3.$version"
		for flavor in "${VALID_FLAVORS[@]}"
		do
			build_flavor "$version_dest" "$flavor" "$version"
		done
		tar cJPf "$version_dest.tar.xz" "CinnXP_themes_gtk3.$version"
		rm -r "$version_dest"
	done
}

# default values
pkg_dir="$THEME_ROOT/pkg"
gtk3_minor_revision=20
flavor="luna"

while getopts “hapg:f:n:” OPTION
do
	case $OPTION in
		h)
			help
			exit 1
			;;
		a)
			all=0
			;;
		p)
			package=0
			;;
		g)
			gtk3_minor_revision=$OPTARG
			;;
		f)
			flavor=$OPTARG
			;;
        n)
            pkg_dir="$THEME_ROOT/$OPTARG"
            ;;
		*)
			break
			;;
	esac
done

validate_sassc

if [ -n "$all" ] && [ -n "$package" ]; then
	echo "ERROR: cannot set -a and -p at once"
	exit
fi

if [ -n "$all" ]; then
	build_all_flavors "$pkg_dir" "$gtk3_minor_revision"
elif [ -n "$package" ]; then
	package_all
else
	validate_gtk_minor_version "$gtk3_minor_revision"
	validate_flavor "$flavor"
	build_cursor_theme "$pkg_dir/usr/share/icons"
	build_flavor "$pkg_dir/usr/share/themes" "$flavor" "$gtk3_minor_revision"
fi