Cleanup

* comply with shellfmt
* activate shellfmt in super-linter

.github/workflows/linter-full.yml

@@ -1,3 +1,4 @@
+---
 name: Lint Code Base
 
 on:
@@ -20,7 +21,8 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
         with:
-          # Full git history is needed to get a proper list of changed files within `super-linter`
+          # Full git history is needed to get a proper list of changed
+          # files within `super-linter`
           fetch-depth: 0
       - name: Lint Code Base
         uses: super-linter/[email protected]
@@ -30,6 +32,5 @@ jobs:
           VALIDATE_BASH_EXEC: false
           VALIDATE_CPP: false
           VALIDATE_CLANG_FORMAT: false
-          VALIDATE_SHELL_SHFMT: false
           VALIDATE_PYTHON_PYLINT: false
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/linter-pr.yml

@@ -1,3 +1,4 @@
+---
 name: Lint Pull Request
 
 on:
@@ -20,7 +21,8 @@ jobs:
       - name: Checkout Code
         uses: actions/checkout@v4
         with:
-          # Full git history is needed to get a proper list of changed files within `super-linter`
+          # Full git history is needed to get a proper list of changed
+          # files within `super-linter`
           fetch-depth: 0
       - name: Lint Code Base
         uses: super-linter/super-linter@v6
@@ -30,6 +32,5 @@ jobs:
           VALIDATE_BASH_EXEC: false
           VALIDATE_CPP: false
           VALIDATE_CLANG_FORMAT: false
-          VALIDATE_SHELL_SHFMT: false
           VALIDATE_PYTHON_PYLINT: false
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/stale.yml

@@ -1,3 +1,4 @@
+---
 name: "Close stale issues and PRs"
 on:
   workflow_dispatch:

color_palette.sh

@@ -3,12 +3,12 @@
 # Idea from http://superuser.com/questions/285381/how-does-the-tmux-color-palette-work
 
 for i in $(seq 0 8 255); do
-	for j in $(seq "$i" $(( i + 7 ))); do
-		for _unused in $(seq 1 $(( 7 - ${#j} ))); do
+	for j in $(seq "$i" $((i + 7))); do
+		for _unused in $(seq 1 $((7 - ${#j}))); do
 			echo -n " "
 		done
 		echo -en "\x1b[38;5;${j}mcolour${j}"
-		[[ $(( j % 8 )) != 7 ]] && echo -n "    "
+		[[ $((j % 8)) != 7 ]] && echo -n "    "
 	done
 	echo
 done

config/helpers.sh

@@ -2,9 +2,9 @@
 # Other settings and helper functions.
 
 debug_mode_enabled() {
-	[ -n "$TMUX_POWERLINE_DEBUG_MODE_ENABLED" ] && [ "$TMUX_POWERLINE_DEBUG_MODE_ENABLED" != "false" ];
+	[ -n "$TMUX_POWERLINE_DEBUG_MODE_ENABLED" ] && [ "$TMUX_POWERLINE_DEBUG_MODE_ENABLED" != "false" ]
 }
 
 patched_font_in_use() {
-	[ -z "$TMUX_POWERLINE_PATCHED_FONT_IN_USE" ] || [ "$TMUX_POWERLINE_PATCHED_FONT_IN_USE" != "false" ];
+	[ -z "$TMUX_POWERLINE_PATCHED_FONT_IN_USE" ] || [ "$TMUX_POWERLINE_PATCHED_FONT_IN_USE" != "false" ]
 }

config/shell.sh

@@ -7,14 +7,14 @@ ostype() { echo "$OSTYPE" | tr '[:upper:]' '[:lower:]'; }
 export SHELL_PLATFORM='unknown'
 
 case "$(ostype)" in
-	*'linux'*	) SHELL_PLATFORM='linux'	;;
-	*'darwin'*	) SHELL_PLATFORM='osx'		;;
-	*'bsd'*		) SHELL_PLATFORM='bsd'		;;
+*'linux'*) SHELL_PLATFORM='linux' ;;
+*'darwin'*) SHELL_PLATFORM='osx' ;;
+*'bsd'*) SHELL_PLATFORM='bsd' ;;
 esac
 
 shell_is_linux() { [[ $SHELL_PLATFORM == 'linux' || $SHELL_PLATFORM == 'bsd' ]]; }
-shell_is_osx()   { [[ $SHELL_PLATFORM == 'osx' ]]; }
-shell_is_bsd()   { [[ $SHELL_PLATFORM == 'bsd' || $SHELL_PLATFORM == 'osx' ]]; }
+shell_is_osx() { [[ $SHELL_PLATFORM == 'osx' ]]; }
+shell_is_bsd() { [[ $SHELL_PLATFORM == 'bsd' || $SHELL_PLATFORM == 'osx' ]]; }
 
 export -f shell_is_linux
 export -f shell_is_osx

generate_config.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Generate default config file.
 
-TMUX_POWERLINE_DIR_HOME="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+TMUX_POWERLINE_DIR_HOME="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 export TMUX_POWERLINE_DIR_HOME
 
 source "${TMUX_POWERLINE_DIR_HOME}/config/paths.sh"

lib/arg_processing.sh

@@ -3,8 +3,8 @@
 
 check_arg_segment() {
 	local segment="$1"
-	if ! [[ "$segment" ==  "left" || "$segment" == "right" || "$segment" == "window-current-format" || "$segment" == "window-format" ]]; then
+	if ! [[ "$segment" == "left" || "$segment" == "right" || "$segment" == "window-current-format" || "$segment" == "window-format" ]]; then
 		echo "Argument must be the side to handle {left, right}, or {window-current-format, window-format}, not \"${segment}\"."
-    	exit 1
+		exit 1
 	fi
 }

lib/colors.sh

@@ -19,12 +19,12 @@ __normalize_color() {
 	local result
 
 	case "$input" in
-		[0-9]|[0-9][0-9]|[0-9][0-9][0-9]) # handle 1 to 3 digits
-			result="colour$input"
-			;;
-		*) # Catch-all
-			result=$input
-			;;
+	[0-9] | [0-9][0-9] | [0-9][0-9][0-9]) # handle 1 to 3 digits
+		result="colour$input"
+		;;
+	*) # Catch-all
+		result=$input
+		;;
 	esac
 
 	echo -n "$result"

lib/config_file.sh

@@ -80,12 +80,10 @@ process_settings() {
 
 		export TMUX_POWERLINE_STATUS_STYLE="fg=$fg_color,bg=$bg_color"
 	fi
-
-
 }
 
 generate_default_config() {
-	read -r -d '' config_contents << EORC
+	read -r -d '' config_contents <<EORC
 # Default configuration file for tmux-powerline.
 # Modeline {
 #	 vi: foldmarker={,} foldmethod=marker foldlevel=0 tabstop=4 filetype=sh
@@ -142,13 +140,13 @@ EORC
 		fi
 	done
 
-	echo -e "$config_contents" > "$TMUX_POWERLINE_CONFIG_FILE_DEFAULT"
+	echo -e "$config_contents" >"$TMUX_POWERLINE_CONFIG_FILE_DEFAULT"
 	echo "Default configuration file generated to: ${TMUX_POWERLINE_CONFIG_FILE_DEFAULT}"
 	echo "Copy/move it to \"${TMUX_POWERLINE_CONFIG_FILE}\" and make your changes."
 }
 
 __read_config_file() {
-	if [  -f "$TMUX_POWERLINE_CONFIG_FILE" ]; then
+	if [ -f "$TMUX_POWERLINE_CONFIG_FILE" ]; then
 		# shellcheck disable=SC1090
 		source "$TMUX_POWERLINE_CONFIG_FILE"
 	fi

lib/headers.sh

@@ -2,7 +2,7 @@
 # Source all needed libs and helpers, kind of like a main.h.
 
 if [ -z "$TMUX_POWERLINE_DIR_HOME" ]; then
-	lib_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+	lib_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 	TMUX_POWERLINE_DIR_HOME="$(dirname "$lib_dir")" # step up to parent dir.
 
 	export TMUX_POWERLINE_DIR_HOME

lib/muting.sh

@@ -3,7 +3,7 @@
 # In all cases $1 is the side to be muted (eg left/right).
 
 powerline_muted() {
-	[ -e "$(__powerline_mute_file "$1")" ];
+	[ -e "$(__powerline_mute_file "$1")" ]
 }
 
 toggle_powerline_mute_status() {

lib/powerline.sh

@@ -22,12 +22,12 @@ print_powerline_side() {
 print_powerline_window_status_current_format() {
 	if [ -z "$TMUX_POWERLINE_WINDOW_STATUS_CURRENT" ]; then
 		TMUX_POWERLINE_WINDOW_STATUS_CURRENT=(
-			"#[$(format inverse)]" \
-			"$TMUX_POWERLINE_DEFAULT_LEFTSIDE_SEPARATOR" \
-			" #I#F " \
-			"$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN" \
-			" #W " \
-			"#[$(format regular)]" \
+			"#[$(format inverse)]"
+			"$TMUX_POWERLINE_DEFAULT_LEFTSIDE_SEPARATOR"
+			" #I#F "
+			"$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN"
+			" #W "
+			"#[$(format regular)]"
 			"$TMUX_POWERLINE_DEFAULT_LEFTSIDE_SEPARATOR"
 		)
 	fi
@@ -38,9 +38,9 @@ print_powerline_window_status_current_format() {
 print_powerline_window_status_format() {
 	if [ -z "$TMUX_POWERLINE_WINDOW_STATUS_FORMAT" ]; then
 		TMUX_POWERLINE_WINDOW_STATUS_FORMAT=(
-			"#[$(format regular)]" \
-			"  #I#{?window_flags,#F, } " \
-			"$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN" \
+			"#[$(format regular)]"
+			"  #I#{?window_flags,#F, } "
+			"$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN"
 			" #W "
 		)
 	fi
@@ -57,31 +57,30 @@ format() {
 	fg_color=$(__normalize_color "$TMUX_POWERLINE_DEFAULT_FOREGROUND_COLOR")
 
 	case $type in
-		inverse)
-			echo "fg=$bg_color,bg=$fg_color,nobold,noitalics,nounderscore"
-			;;
-		regular)
-			echo "fg=$fg_color,bg=$bg_color,nobold,noitalics,nounderscore"
-			;;
-		*)
-			;;
+	inverse)
+		echo "fg=$bg_color,bg=$fg_color,nobold,noitalics,nounderscore"
+		;;
+	regular)
+		echo "fg=$fg_color,bg=$bg_color,nobold,noitalics,nounderscore"
+		;;
+	*) ;;
 	esac
 }
 
 __process_segment_defaults() {
 	# shellcheck disable=SC2154 # disable until we found a better solution for eval input_segments
 	for segment_index in "${!input_segments[@]}"; do
 		local input_segment
-		read -r -a input_segment <<< "${input_segments[segment_index]}"
+		read -r -a input_segment <<<"${input_segments[segment_index]}"
 		eval "local default_separator=\$TMUX_POWERLINE_DEFAULT_${upper_side}SIDE_SEPARATOR"
 
 		powerline_segment_with_defaults=(
-			"${input_segment[0]:-no_script}" \
-			"${input_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}" \
-			"${input_segment[2]:-$TMUX_POWERLINE_DEFAULT_FOREGROUND_COLOR}" \
-			"${input_segment[3]:-$default_separator}" \
-			"${input_segment[6]:-$spacing_disable}" \
-			"${input_segment[7]:-$separator_disable}" \
+			"${input_segment[0]:-no_script}"
+			"${input_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}"
+			"${input_segment[2]:-$TMUX_POWERLINE_DEFAULT_FOREGROUND_COLOR}"
+			"${input_segment[3]:-$default_separator}"
+			"${input_segment[6]:-$spacing_disable}"
+			"${input_segment[7]:-$separator_disable}"
 		)
 
 		powerline_segments[segment_index]="${powerline_segment_with_defaults[*]}"
@@ -91,9 +90,9 @@ __process_segment_defaults() {
 __process_scripts() {
 	for segment_index in "${!powerline_segments[@]}"; do
 		local powerline_segment
-		read -r -a powerline_segment <<< "${powerline_segments[segment_index]}"
+		read -r -a powerline_segment <<<"${powerline_segments[segment_index]}"
 
-		if [ -n "$TMUX_POWERLINE_DIR_USER_SEGMENTS" ] && [ -f "$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh" ] ; then
+		if [ -n "$TMUX_POWERLINE_DIR_USER_SEGMENTS" ] && [ -f "$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh" ]; then
 			local script="$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh"
 		else
 			local script="$TMUX_POWERLINE_DIR_SEGMENTS/${powerline_segment[0]}.sh"
@@ -109,7 +108,7 @@ __process_scripts() {
 		local exit_code="$?"
 		unset -f run_segment
 
-		if [ "$exit_code" -ne 0 ] && debug_mode_enabled ; then
+		if [ "$exit_code" -ne 0 ] && debug_mode_enabled; then
 			local seg_name="${script##*/}"
 			echo "Segment '${seg_name}' exited with code ${exit_code}. Aborting."
 			exit 1
@@ -134,14 +133,14 @@ __process_scripts() {
 __process_colors() {
 	for segment_index in "${!powerline_segments[@]}"; do
 		local powerline_segment
-		read -r -a powerline_segment <<< "${powerline_segments[segment_index]}"
+		read -r -a powerline_segment <<<"${powerline_segments[segment_index]}"
 		local separator_enable=${powerline_segment[5]}
 		# Find the next segment that produces content (i.e. skip empty segments).
-		for next_segment_index in $(eval echo "{$((segment_index + 1))..${#powerline_segments}}") ; do
+		for next_segment_index in $(eval echo "{$((segment_index + 1))..${#powerline_segments}}"); do
 			[[ -n ${powerline_segments[next_segment_index]} ]] && break
 		done
 		local next_segment
-		read -r -a next_segment <<< "${powerline_segments[next_segment_index]}"
+		read -r -a next_segment <<<"${powerline_segments[next_segment_index]}"
 
 		if [ "$side" == 'left' ]; then
 			powerline_segment[4]=${next_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
@@ -165,7 +164,7 @@ __process_colors() {
 __process_powerline() {
 	for segment_index in "${!powerline_segments[@]}"; do
 		local powerline_segment
-		read -r -a powerline_segment <<< "${powerline_segments[segment_index]}"
+		read -r -a powerline_segment <<<"${powerline_segments[segment_index]}"
 
 		local background_color=${powerline_segment[1]}
 		local foreground_color=${powerline_segment[2]}
@@ -188,7 +187,7 @@ __print_left_segment() {
 	local separator_disable=$7
 
 	__print_colored_content "$content" "$content_background_color" "$content_foreground_color"
-	if [ ! "$separator_disable" == "separator_disable" ] ; then
+	if [ ! "$separator_disable" == "separator_disable" ]; then
 		__print_colored_content "$separator" "$separator_background_color" "$separator_foreground_color"
 	fi
 }
@@ -202,19 +201,18 @@ __print_right_segment() {
 	local separator_foreground_color=$6
 	local separator_disable=$7
 
-	if [ ! "$separator_disable" == "separator_disable" ] ; then
+	if [ ! "$separator_disable" == "separator_disable" ]; then
 		__print_colored_content "$separator" "$separator_background_color" "$separator_foreground_color"
 	fi
 	__print_colored_content "$content" "$content_background_color" "$content_foreground_color"
 }
 
 __segment_separator_is_thin() {
-	[[ ${powerline_segment[3]} == "$TMUX_POWERLINE_SEPARATOR_LEFT_THIN" || \
-		${powerline_segment[3]} == "$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN" ]];
+	[[ ${powerline_segment[3]} == "$TMUX_POWERLINE_SEPARATOR_LEFT_THIN" || ${powerline_segment[3]} == "$TMUX_POWERLINE_SEPARATOR_RIGHT_THIN" ]]
 }
 
 __check_platform() {
 	if [ "$SHELL_PLATFORM" == "unknown" ] && debug_mode_enabled; then
-		 echo "Unknown platform; modify config/shell.sh"  >&2
+		echo "Unknown platform; modify config/shell.sh" >&2
 	fi
 }

lib/text_roll.sh

@@ -6,19 +6,19 @@
 # arg4: mode to fill {"space", "repeat"}
 # arg5: repeat separator
 roll_text() {
-	local text="$1"  # Text to print
+	local text="$1" # Text to print
 
 	if [ -z "$text" ]; then
-		return;
+		return
 	fi
 
-	local max_len="10"	# Default max length.
+	local max_len="10" # Default max length.
 
 	if [ -n "$2" ]; then
 		max_len="$2"
 	fi
 
-	local speed="1"  # Default roll speed in chars per second.
+	local speed="1" # Default roll speed in chars per second.
 
 	if [ -n "$3" ]; then
 		speed="$3"
@@ -60,13 +60,13 @@ roll_text() {
 	# Truncate text on time-based offset
 	text=${text:offset}
 
-  # Ensure text is not longer than max_len
+	# Ensure text is not longer than max_len
 	text=${text:0:max_len}
 
 	# Get fill count by substracting length of current text from max_len
 	local fill_count=$((max_len - ${#text}))
 
-	for ((index=0; index < fill_count; index++)); do
+	for ((index = 0; index < fill_count; index++)); do
 		if [ "$fill_mode" = "repeat" ]; then
 			text="${text}${repeat:index:1}"
 		elif [ "$fill_mode" = "space" ] || :; then