baseproc16-default/theme_qutebrowser

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#!/usr/bin/env bash
readonly dependency=("theova/base16-qutebrowser")
readonly app="qutebrowser"
readonly path="$1"
readonly package="$2"
readonly theme="$3"
readonly permanent="$4"
## Main Entrypoint
#
# Finds the right theme template file and starts theme
# switching and, if necessary, permanent setting processes.
main() {
dbg_msg $app "Starting Processor"
tfile="$path/$package/themes/default/base16-$theme.config.py"
if ! file_exists "$tfile"; then
dbg_msg $app "error" "Theme template $theme not found in package $package"
exit 1
fi
if [[ $permanent == "true" ]]; then save; fi
theme
dbg_msg $app "Processor Done"
}
## Theme switcher
#
# Makes sure that if any application instance is
# currently running, it switches to new theme.
theme() {
dbg_msg $app "Switching theme"
# make sure qutebrowser is running
pgrep qutebrowser >/dev/null || {
dbg_msg $app "warn" "No instance running, not switching theme"
return
}
qutebrowser --loglevel error ":config-source $tfile"
dbg_msg $app "Successfully switched theme"
}
## Theme setter
#
# Takes care of permanently writing the desired
# base16 theme into application settings.
save() {
dbg_msg $app "Saving theme"
local qt_dir="${XDG_CONFIG_HOME:-/$HOME/.config}/qutebrowser"
if [[ -d $qt_dir ]]; then
cat "$tfile" >"$qt_dir/colorscheme.py"
dbg_msg $app "Saved theme to $qt_dir/colorscheme.py"
include "$qt_dir"
else
dbg_msg $app "warn" "No qutebrowser configuration directory found"
fi
}
## Theme includer
#
# Makes sure that theme is actually included in
# default application startup routine.
# This is the most invasive step of theming since it
# rewrites within existing configuration files.
include() {
local qt_dir="$1"
dbg_msg $app "Including theme in configuration"
if file_exists "$qt_dir/config.py"; then
line_exists_or_append "$qt_dir/config.py" 'config.source("colorscheme.py")'
dbg_msg $app "Successfully included theme in configuration"
else
dbg_msg $app "warn" "No default configuration file found"
fi
}
# Safe sourcing: https://stackoverflow.com/a/12694189
DIR="${BASH_SOURCE%/*}"
if [[ ! -d $DIR ]]; then DIR="$PWD"; fi
# shellcheck source=utilities.sh
. "$DIR/utilities.sh"
## Dependency Checker
#
# Makes sure the processor is called for the correct
# base16 package, or refuses to run if it is not.
if printf '%s\n' "${dependency[@]}" | grep -q -P "^$package$"; then
main
else
dbg_msg $app "error" "Processor does not work for package $package"
fi