Merge pull request #525 from lulivi/master
Added dunst xresources theme wrapper
This commit is contained in:
Nikos Tsipinakis
GitHub
commit
0e1b5a176a
255
contrib/dunst_xr_theme_changer.sh
Executable file
255
contrib/dunst_xr_theme_changer.sh
Executable file
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#!/usr/bin/env bash
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###############################################################################
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##
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## Usage
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##
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## ./<script_name> [<OPTIONS>]
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##
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## If it does not run, give execute permissions to the script with
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## chmod +x <script_name>. Then run ./<script_name>.
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##
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## Options
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##
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## -h|--help Optional. Show help message.
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##
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## Description
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##
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## This script creates a dunst themed user config in $HOME/.config/dunst/
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## folder, changing dunst basic theming options (like fonts, colors, etc.)
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## according to your current X resources color palette.
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##
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## To make this possible, it reads your current user config
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## ($HOME/.conf/dunst/dunstrc, which is copied from the default config if
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## it does not exist) and changes the attributes values with new ones (see
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## Theming section for more info). Then it dumps the new configuration to
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## $user_xr_color_conf file.
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##
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## Theming
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##
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## To change colors and fonts:
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##
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## * Firstly you have to ensure that those dunst attributes are defined in
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## the corresponding sections. For example, to change the frame_color
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## value from the global section, in $HOME/.config/dunst/dunstrc should
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## be:
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##
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## ...
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## [global]
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## ...
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## frame_color = <value>
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## ...
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##
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## * Then, you can change attribute values as you wish with the
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## following format in theme_attr_dict:
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##
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## ["<sec>-<attr>"]="<val>|$(xrdb_get '<X_res>' '<dev_val>')"
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##
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## Each <variable> means the following:
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##
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## * sec - current section name e.g.: global.
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## * attr - current attribute name e.g.: frame-color.
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## * val - a simple value e.g.: "#fffeee", Monospace, 11...
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## * X_res - X resource name e.g.: color8.
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## * dev_val - default value to set if X_res is not found e.g.: #65737e.
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##
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## Theming example (you can check theme_attr_dict for other values):
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##
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## ["global-frame_color"]="\"$(xrdb_get 'color8' '#65737e')
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##
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## The function xrdb_get, searches the first parameter in the X resources
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## database with appres (command installed from xorg-appres in archlinux
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## and x11-utils in ubuntu). If the first parameter does not exist, the
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## function returns the second parameter. For hex colors, is important to
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## scape " characters for proper functioning of dunst config reader (for
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## example "#ffeegg").
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##
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## You can define X_res variables in $HOME/.Xresources file. For in depth
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## syntax go to https://wiki.archlinux.org/index.php/X_resources.
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##
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###############################################################################
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set -e
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# Check if appres is installed
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if [ ! "$(command -v appres)" ]; then
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printf 'Install xorg-appres in archlinux and x11-utils in debian/ubuntu.\n'
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exit 1
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fi
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readonly script_name="$(basename "$0")"
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readonly base_dir="$(realpath "$(dirname "$0")")"
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# Show ussage
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usage() {
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grep -e '^##[^#]*$' "$base_dir/$script_name" | \
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sed -e "s/^##[[:space:]]\{0,1\}//g" \
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-e "s/<script_name>/${script_name}/g"
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exit 2
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} 2>/dev/null
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# Show help
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if [ "$#" -gt 0 ]; then
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if ! [[ "$1" == "--help" || "$1" == "-h" ]]; then
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printf '\nUnknown option.\n'
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fi
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usage
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fi
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# Function to get resource values
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xrdb_get () {
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output="$(appres Dunst | grep "$1:" | head -n1 | cut -f2)"
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default="$2"
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printf '%s' "${output:-$default}"
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}
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#
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# Attributes dictionary. Add or remove attributes (see header for more info)
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#
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declare -A theme_attr_dict=(
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["global-font"]="$(xrdb_get 'font' 'Monospace') $(xrdb_get '*.font_size:' '11')"
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["global-frame_width"]="$(xrdb_get 'border_width' '1')"
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["global-frame_color"]="\"$(xrdb_get 'color8' '#65737e')\""
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["urgency_low-background"]="\"$(xrdb_get 'color0' '#2b303b')\""
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["urgency_low-foreground"]="\"$(xrdb_get 'color4' '#65737e')\""
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["urgency_low-frame_color"]="\"$(xrdb_get 'color4' '#65737e')\""
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["urgency_normal-background"]="\"$(xrdb_get 'color0' '#2b303b')\""
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["urgency_normal-foreground"]="\"$(xrdb_get 'color2' '#a3be8c')\""
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["urgency_normal-frame_color"]="\"$(xrdb_get 'color2' '#a3be8c')\""
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["urgency_critical-background"]="\"$(xrdb_get 'color0' '#2b303b')\""
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["urgency_critical-foreground"]="\"$(xrdb_get 'color1' '#bf616a')\""
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["urgency_critical-frame_color"]="\"$(xrdb_get 'color1' '#bf616a')\""
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)
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# Attributes dictionary keys.
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readonly valid_keys="${!theme_attr_dict[@]}"
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#
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# File paths
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#
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# User config dir and file
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readonly user_conf_dir="${XDG_CONFIG_HOME:-$HOME/.config}/dunst"
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readonly user_conf="$user_conf_dir/dunstrc"
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# Default config dir and example file
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example_conf_dir="/usr/share/dunst"
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example_conf="$example_conf_dir/dunstrc"
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# User xresources color config file
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readonly user_xr_color_conf="$user_conf_dir/dunstrc_xr_colors"
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# Check if the user config directory exists
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if ! [ -d "$user_conf_dir" ]; then
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printf 'Creating folder "%s".\n' "$user_conf_dir"
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mkdir -p "$user_conf_dir"
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fi
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# Check if the user config file exists
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if ! [ -f "$user_conf" ]; then
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printf '"%s" file does not exist.\nChecking for config file example.' \
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"$user_conf"
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if [ -d "/usr/share/dunst" ]; then
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# Archlinux default dir and example file
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example_conf_dir="/usr/share/dunst"
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if [ -f "$example_conf_dir/dunstrc" ]; then
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example_conf="$example_conf_dir/dunstrc"
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else
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printf 'Could not find the example config file in "%s".
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\nPlease, change $example_conf variable in the script.' \
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"$example_conf_dir"
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exit 1
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fi
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elif [ -d "/usr/share/doc/dunst" ]; then
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# Debian/Ubuntu default dir
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example_conf_dir="/usr/share/doc/dunst"
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if [ -f "$example_conf_dir/dunstrc.example.gz" ]; then
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# Ubuntu <= 17.10 and Debian <= 1.2.0-2 example file:
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example_conf="$example_conf_dir/dunstrc.example.gz"
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elif [ -f "$example_conf_dir/dunstrc.gz" ]; then
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# Ubuntu >= 18.04 and Debian >= 1.3.0-2 example file:
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example_conf="$example_conf_dir/dunstrc.gz"
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else
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printf 'Could not find the example config file in "%s".
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\nPlease, change $example_conf variable in the script.' \
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"$example_conf_dir"
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exit 1
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fi
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else
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printf 'Could not find the example config directory.
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\nPlease, change $example_conf_dir variable in the script.'
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exit 1
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fi
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printf 'Copying example config to "%s".\n' "$user_conf_dir"
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# Get the extension to check if the file is compressed
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if [[ "${example_conf##*\.}" == "gz" ]]; then
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# Extract example file to user config file
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gunzip -c "$example_conf" > "$user_conf"
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else
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cp "$example_conf" "$user_conf_dir"
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fi
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fi
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# Regular expressions
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readonly re_section_line='^\[(.*)\]$'
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readonly re_empty_comment_line='(^$)|(^[[:space:]]*(\#)|(;))'
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readonly re_attribute_line='^([[:space:]]*)([_[:alnum:]]+)'
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# Create an array with the file lines
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mapfile -t conf < "$user_conf"
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# Iterate over the file lines
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for idx in "${!conf[@]}"; do
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# Current line
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curr_line="${conf[$idx]}"
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# If we are in a new section:
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if [[ "$curr_line" =~ $re_section_line ]]; then
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curr_section="${BASH_REMATCH[1]}"
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continue
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fi
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# Skip the line if it is empty or has a comment
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if [[ "$curr_line" =~ $re_empty_comment_line ]]; then
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continue
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fi
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# Get the attribute in the current line
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[[ "$curr_line" =~ $re_attribute_line ]]
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curr_attr_name="${BASH_REMATCH[2]}"
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curr_sett_name="${curr_section}-${curr_attr_name}"
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# If the current attribute is not in our dictionary, continue
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case "$valid_keys" in
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*"$curr_sett_name"*)
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printf -v conf[$idx] ' %s = %s' \
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"${curr_attr_name}" \
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"${theme_attr_dict[$curr_sett_name]}"
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;;
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esac
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done
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# Create a header for the xr_color config file
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user_xr_color_conf_content="\
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###################################
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#
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# Config file created with
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# $script_name wrapper
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#
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###################################
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"
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# After everything is completed, write the new config to a file
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user_xr_color_conf_content+="$(printf '%s\n' "${conf[@]}")"
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printf '%s\n' "$user_xr_color_conf_content" > "$user_xr_color_conf"
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printf '"%s" updated successfully.\n' "$user_xr_color_conf"
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