baseproc16-default/theme_xresources

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#!/usr/bin/env bash
readonly dependency=("binaryplease/base16-xresources")
path="$1"
package="$2"
theme="$3"
permanent="$4"
file_exists() {
if [[ -f "$1" ]]; then
true
else
false
fi
}
# check for existence of pattern $2 in file $1
line_exists() {
local file="$1"
local line="$2"
if ! file_exists "$file" || ! grep -qe "$line" "$file"; then
false
else
true
fi
}
# prepare newline at eof to make adding newlines easier
eol_exists_or_append() {
local file="$1"
local eof
eof=$(tail -c 1 "$file")
if [ -n "$eof" ]; then
printf "\\n" >>"$file"
fi
}
# append line $2 to file $1
line_exists_or_append() {
local file="$1"
local line="$2"
local new="${3:-$2}"
if ! line_exists "$file" "$line"; then
eol_exists_or_append "$file"
echo "$new" >>"$file"
fi
}
check_tfile() {
if ! file_exists "$tfile"; then
dbg_msg="$dbg_msg theme $theme for xresources not found.\n"
exit 1
fi
}
theme_xresources() {
dbg_msg="XRESOURCES: $package - "
tfile="$path/$package/xresources/base16-$theme.Xresources"
check_tfile
if [[ "$permanent" == "true" ]]; then set_xresources_theme; fi
switch_xresources_theme
[[ "$DEBUG" == true ]] && echo "$dbg_msg"
}
switch_xresources_theme() {
local x_dir="${XDG_CONFIG_HOME:-/$HOME/.config}/xresources"
xrdb -merge "$tfile"
restart_custom_applications
}
restart_custom_applications() {
type polybar-launch >/dev/null 2>&1 && polybar-launch simple-top >/dev/null
}
set_xresources_theme() {
local x_dir="${XDG_CONFIG_HOME:-/$HOME/.config}/xresources"
local x_optdir="$x_dir/Xresources.d"
if [[ -d "$x_optdir" ]]; then
cat "$tfile" >"$x_optdir/colorscheme"
call_from_config "$x_dir"
dbg_msg="$dbg_msg Set theme $theme\n"
fi
}
call_from_config() {
local x_dir="$1"
if file_exists "$x_dir/Xresources"; then
line_exists_or_append "$x_dir/Xresources" '#include "Xresources.d/colorscheme"'
fi
}
if printf '%s\n' "${dependency[@]}" | grep -q -P "^$package$"; then
theme_xresources
else
printf "Processor does not work for %s, please use another." "$package"
fi