534 lines
11 KiB
Plaintext
534 lines
11 KiB
Plaintext
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#!/usr/bin/env bash
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# This script allows changing the color of folders in Papirus icon theme
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#
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# @author: Sergei Eremenko (https://github.com/SmartFinn)
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# @license: MIT license (MIT)
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# @link: https://github.com/PapirusDevelopmentTeam/papirus-folders
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if test -z "$BASH_VERSION"; then
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printf "Error: this script only works in bash.\n" >&2
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exit 1
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fi
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if (( BASH_VERSINFO[0] * 10 + BASH_VERSINFO[1] < 40 )); then
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printf "Error: this script requires bash version >= 4.0\n" >&2
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exit 1
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fi
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# set -x # Uncomment to debug this shell script
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set -o errexit \
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-o noclobber \
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-o pipefail
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readonly THIS_SCRIPT="$(readlink -f "${BASH_SOURCE[0]}")"
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readonly PROGNAME="$(basename "${BASH_SOURCE[0]}")"
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readonly VERSION="1.12.0"
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readonly -a ARGS=("$@")
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msg() {
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printf "%s: %b\n" "$PROGNAME" "$*"
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}
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verbose() {
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[ -t 4 ] || return 0
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msg "$@" >&4
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}
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err() {
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msg "Error:" "$*" >&2
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}
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_exit() {
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msg "$*" "Exiting ..."
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exit 0
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}
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fatal() {
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err "$*"
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exit 1
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}
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usage() {
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cat <<- EOF
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USAGE
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$ $PROGNAME [options] -t <theme> {-C --color} <color>
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$ $PROGNAME [options] -t <theme> {-D --default}
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$ $PROGNAME [options] -t <theme> {-R --restore}
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OPERATIONS
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-C --color <color> change color of folders
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-D --default back to the default color
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-R --restore restore the last used color from the config file
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OPTIONS
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-l --list show available colors
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-o --once do not save the changes to the config file
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-t --theme <theme> make changes to the specified theme (Default: Papirus)
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-u --update-caches update icon caches for Papirus and siblings
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-V --version print $PROGNAME version and exit
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-v --verbose be verbose
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-h --help show this help
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EOF
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exit "${1:-0}"
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}
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_is_root_user() {
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if [ "$(id -u)" -eq 0 ]; then
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return 0
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fi
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return 1
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}
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_is_user_dir() {
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[ -n "$USER_HOME" ] || return 1
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# if $THEME_DIR is placed in home dir
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if [ -z "${THEME_DIR##"$USER_HOME"/*}" ]; then
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return 0
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fi
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return 1
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}
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_is_writable() {
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if [ -w "$THEME_DIR/48x48/places/folder.svg" ]; then
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return 0
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fi
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return 1
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}
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_is_valid_color() {
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local color="$1"
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eval "$(declare_colors)"
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for i in "${colors[@]}"; do
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[ "$i" == "$color" ] || continue
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return 0
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done
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return 1
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}
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declare_colors() {
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local color=''
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local -a colors=()
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local -a valid_colors=("adwaita" "black" "blue" "bluegrey" "breeze" "brown"
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"carmine" "cyan" "darkcyan" "deeporange" "green" "grey"
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"indigo" "magenta" "nordic" "orange" "palebrown" "paleorange"
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"pink" "purple" "red" "teal" "violet" "white" "yaru" "yellow")
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for color in "${valid_colors[@]}"; do
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if [ -e "$THEME_DIR/48x48/places/folder-$color.svg" ]; then
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colors=( "${colors[@]}" "$color" )
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fi
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done
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# return array of colors
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declare -p colors
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}
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declare_current_color() {
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local icon_file icon_name current_color=''
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icon_file=$(readlink -f "$THEME_DIR/48x48/places/folder.svg")
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icon_name=$(basename "$icon_file" .svg)
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current_color="${icon_name##*-}"
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declare -p current_color
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}
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get_theme_dir() {
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local data_dir icons_dir
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local -a data_dirs=()
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local -a icons_dirs=(
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"$USER_HOME/.icons"
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"${XDG_DATA_HOME:-$USER_HOME/.local/share}/icons"
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)
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# Get data directories from XDG_DATA_DIRS variable and
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# convert colon-separated list into bash array
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IFS=: read -ra data_dirs <<< "${XDG_DATA_DIRS:-/usr/local/share:/usr/share}"
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for data_dir in "${data_dirs[@]}"; do
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[ -d "$data_dir/icons" ] || continue
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icons_dirs=( "${icons_dirs[@]}" "${data_dir%/}/icons" )
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done
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for icons_dir in "${icons_dirs[@]}"; do
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[ -f "$icons_dir/$THEME_NAME/index.theme" ] || continue
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printf '%s' "$icons_dir/$THEME_NAME"
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verbose "'$THEME_NAME' is found in '$icons_dir'."
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return 0
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done
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return 1
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}
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get_real_user() {
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# return name of the user that runs the script
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local user=''
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if [ -n "$PKEXEC_UID" ]; then
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user="$(id -nu "$PKEXEC_UID")"
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elif [ -n "$SUDO_USER" ]; then
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user="$SUDO_USER"
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else
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user="$(id -nu)"
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fi
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printf '%s' "$user"
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}
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get_user_home() {
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local user="$1"
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getent passwd "$user" | awk -F: '{print $(NF-1)}'
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}
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config() {
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# usage: config [{-n --new}] {-s --set} key=value... | {-g --get} key...
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local config_dir
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local config_file
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if _is_user_dir; then
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config_dir="${XDG_CONFIG_HOME:-$USER_HOME/.config}/$PROGNAME"
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else
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config_dir="/var/lib/$PROGNAME"
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fi
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config_file="$config_dir/keep"
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while (( "$#" )); do
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case "$1" in
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-g|--get) shift;
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[ -f "$config_file" ] || return 1
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for key; do
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[ -n "$key" ] || continue
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awk -F= -v key="$key" '
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$1 == key {
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print $2
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exit
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}
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' "$config_file"
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done
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break
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;;
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-n|--new) shift;
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rm -f "$config_file"
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;;
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-e|--exists) shift;
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# return 1 if test config_file not exist or empty
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if [ -f "$config_file" ] && [ -s "$config_file" ]; then
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return 0
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else
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return 1
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fi
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;;
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-s|--set) shift;
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[ "$ONCE" -eq "1" ] && break
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[ -d "$config_dir" ] || mkdir -p "$config_dir"
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[ -f "$config_file" ] || touch "$config_file"
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verbose "Saving params to '$config_file' ..."
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cat >> "$config_file" <<- EOF
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$(for key_value; do echo "$key_value"; done)
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EOF
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break
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;;
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*)
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err "illegal option -- '$1'"
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return 1
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esac
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done
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return 0
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}
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change_color() {
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local color="${1:?${FUNCNAME[-1]}: color is not set}"
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local size prefix file_path file_name symlink_path
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local -a sizes=(22x22 24x24 32x32 48x48 64x64)
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local -a prefixes=("folder-$color" "user-$color")
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for size in "${sizes[@]}"; do
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for prefix in "${prefixes[@]}"; do
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for file_path in "$THEME_DIR/$size/places/$prefix"{-*,}.svg; do
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[ -f "$file_path" ] || continue # is a file
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[ -L "$file_path" ] && continue # is not a symlink
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file_name="${file_path##*/}"
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symlink_path="${file_path/-$color/}" # remove color suffix
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ln -sf "$file_name" "$symlink_path" || {
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fatal "Fail to create '$symlink_path' symlink"
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}
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done
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done
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done
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}
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list_colors() {
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local color='' prefix=''
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eval "$(declare_colors)"
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eval "$(declare_current_color)"
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for color in "${colors[@]}"; do
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if [ "$current_color" == "$color" ]; then
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prefix='>'
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else
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prefix=''
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fi
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printf '%2s %s\n' "$prefix" "$color"
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done
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}
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do_change_color() {
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_is_valid_color "$SELECTED_COLOR" || {
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fatal "Unable to find '$SELECTED_COLOR' color in '$THEME_NAME'"
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}
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verify_privileges
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msg "Changing color of folders to '$SELECTED_COLOR' for '$THEME_NAME' ..."
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change_color "$SELECTED_COLOR"
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config --new --set "theme=$THEME_NAME" "color=$SELECTED_COLOR"
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update_icon_cache
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}
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do_revert_default() {
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verify_privileges
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msg "Restoring default folder color for '$THEME_NAME' ..."
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change_color "${DEFAULT_COLORS[$THEME_NAME]:-blue}"
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config --new
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update_icon_cache
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}
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do_restore_color() {
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local saved_color=''
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if config --exists; then
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THEME_NAME="$(config --get theme)"
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saved_color="$(config --get color)"
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else
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_exit "Unable to find config file."
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fi
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THEME_DIR="$(get_theme_dir)" || {
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_exit "Unable to find '$THEME_NAME' icon theme."
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}
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_is_valid_color "$saved_color" || {
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_exit "Unable to find '$saved_color' color in '$THEME_NAME'."
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}
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verify_privileges
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change_color "$saved_color"
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msg "'$saved_color' color of the folders has been restored."
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}
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delete_icon_caches() {
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local icon_cache real_user='' real_home=''
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real_user="$(get_real_user)"
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real_home="$(get_user_home "$real_user")"
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declare -a icon_caches=(
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# KDE 5 icon caches
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"$real_home/.cache/icon-cache.kcache"
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"/var/tmp/kdecache-$real_user/icon-cache.kcache"
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)
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verbose "Deleting icon caches ..."
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for icon_cache in "${icon_caches[@]}"; do
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[ -e "$icon_cache" ] || continue
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rm -f "$icon_cache"
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done
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}
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update_icon_cache() {
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[ -z "$DISABLE_UPDATE_ICON_CACHE" ] || return 0
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delete_icon_caches
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verbose "Rebuilding icon cache for '$THEME_NAME' ..."
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gtk-update-icon-cache -qf "$THEME_DIR" || true
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}
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update_icon_caches() {
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local theme=''
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delete_icon_caches
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for theme in "${!DEFAULT_COLORS[@]}"; do
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[ -f "$THEME_DIR/../$theme/index.theme" ] || continue
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verbose "Rebuilding icon cache for '$theme' ..."
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gtk-update-icon-cache -qf "$THEME_DIR/../$theme" || true
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done
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}
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verify_privileges() {
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_is_root_user && return 0
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_is_user_dir && return 0
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_is_writable && return 0
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verbose "This operation requires root privileges."
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if command -v sudo > /dev/null; then
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exec sudo USER_HOME="$USER_HOME" XDG_DATA_DIRS="$XDG_DATA_DIRS" \
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"$THIS_SCRIPT" "${ARGS[@]}"
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else
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fatal "You need to be root to run this command."
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fi
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}
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parse_args() {
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local arg='' opt=''
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local -a args=()
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# Show help if no argument is passed
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if [ -z "$1" ]; then
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usage 2
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fi
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# Translate --gnu-long-options to -g (short options)
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for arg; do
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case "$arg" in
|
||
|
|
--help) args+=( -h ) ;;
|
||
|
|
--list) args+=( -l ) ;;
|
||
|
|
--once) args+=( -o ) ;;
|
||
|
|
--theme) args+=( -t ) ;;
|
||
|
|
--update-caches) args+=( -u ) ;;
|
||
|
|
--verbose) args+=( -v ) ;;
|
||
|
|
--color|--colour) args+=( -C ) ;;
|
||
|
|
--default) args+=( -D ) ;;
|
||
|
|
--restore) args+=( -R ) ;;
|
||
|
|
--version) args+=( -V ) ;;
|
||
|
|
--[0-9a-Z]*)
|
||
|
|
err "illegal option -- '$arg'"
|
||
|
|
usage 2
|
||
|
|
;;
|
||
|
|
*) args+=("$arg")
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
# Reset the positional parameters to the short options
|
||
|
|
set -- "${args[@]}"
|
||
|
|
|
||
|
|
while getopts ":C:DRlot:uvVh" opt; do
|
||
|
|
case "$opt" in
|
||
|
|
C ) OPERATIONS+=("change-color")
|
||
|
|
SELECTED_COLOR="$OPTARG"
|
||
|
|
;;
|
||
|
|
D ) OPERATIONS+=("revert-default") ;;
|
||
|
|
R ) OPERATIONS+=("restore-color") ;;
|
||
|
|
l ) OPERATIONS+=("list-colors") ;;
|
||
|
|
o ) ONCE=1 ;;
|
||
|
|
t ) THEME_NAME="$OPTARG" ;;
|
||
|
|
u ) OPERATIONS+=("update-icon-caches") ;;
|
||
|
|
v ) VERBOSE=1 ;;
|
||
|
|
V ) printf "%s %s\n" "$PROGNAME" "$VERSION"
|
||
|
|
exit 0
|
||
|
|
;;
|
||
|
|
h ) usage 0 ;;
|
||
|
|
: ) err "option requires an argument -- '-$OPTARG'"
|
||
|
|
usage 2
|
||
|
|
;;
|
||
|
|
\?) err "illegal option -- '-$OPTARG'"
|
||
|
|
usage 2
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
shift $((OPTIND-1))
|
||
|
|
|
||
|
|
# Return an error if any positional parameters are found
|
||
|
|
if [ -n "$1" ]; then
|
||
|
|
err "illegal parameter -- '$1'"
|
||
|
|
usage 2
|
||
|
|
fi
|
||
|
|
}
|
||
|
|
|
||
|
|
main() {
|
||
|
|
# default values of options
|
||
|
|
declare THEME_NAME="${THEME_NAME:-Papirus}"
|
||
|
|
declare -i VERBOSE="${VERBOSE:-0}"
|
||
|
|
declare -i ONCE="${ONCE:-0}"
|
||
|
|
declare -A DEFAULT_COLORS=(
|
||
|
|
['ePapirus']='blue'
|
||
|
|
['Papirus']='blue'
|
||
|
|
['Papirus-Dark']='blue'
|
||
|
|
)
|
||
|
|
|
||
|
|
declare SELECTED_COLOR=''
|
||
|
|
declare -a OPERATIONS=()
|
||
|
|
|
||
|
|
parse_args "${ARGS[@]}"
|
||
|
|
|
||
|
|
if [ "$VERBOSE" -eq "1" ]; then
|
||
|
|
# open a file descriptor for verbose messages
|
||
|
|
exec 4>&1
|
||
|
|
# close the file descriptor before exiting
|
||
|
|
trap 'exec 4>&-' EXIT HUP INT TERM
|
||
|
|
fi
|
||
|
|
|
||
|
|
# set USER_HOME variable instead HOME to prevent changing user's icons
|
||
|
|
# when running with sudo
|
||
|
|
[ -n "$USER_HOME" ] || USER_HOME="$(get_user_home "$(id -nu)")"
|
||
|
|
|
||
|
|
if [ -f "$THEME_NAME/index.theme" ]; then
|
||
|
|
# THEME_NAME is a path to an icon theme
|
||
|
|
THEME_DIR="$(readlink -f "$THEME_NAME")"
|
||
|
|
THEME_NAME="$(basename "$THEME_DIR")"
|
||
|
|
verbose "The path to '$THEME_DIR' theme is specified."
|
||
|
|
else
|
||
|
|
THEME_DIR="$(get_theme_dir)" || {
|
||
|
|
fatal "Fail to find '$THEME_NAME' icon theme."
|
||
|
|
}
|
||
|
|
fi
|
||
|
|
|
||
|
|
for operation in "${OPERATIONS[@]}"; do
|
||
|
|
case "$operation" in
|
||
|
|
change-color)
|
||
|
|
do_change_color
|
||
|
|
;;
|
||
|
|
revert-default)
|
||
|
|
do_revert_default
|
||
|
|
;;
|
||
|
|
restore-color)
|
||
|
|
do_restore_color
|
||
|
|
;;
|
||
|
|
list-colors)
|
||
|
|
if [ -t 1 ]; then
|
||
|
|
cat <<- EOF
|
||
|
|
List of available colors:
|
||
|
|
$(list_colors)
|
||
|
|
EOF
|
||
|
|
else
|
||
|
|
list_colors
|
||
|
|
fi
|
||
|
|
;;
|
||
|
|
update-icon-caches)
|
||
|
|
verify_privileges
|
||
|
|
update_icon_caches
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
verbose "Done!"
|
||
|
|
|
||
|
|
exit 0
|
||
|
|
}
|
||
|
|
|
||
|
|
main
|
||
|
|
|
||
|
|
exit 1
|