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