add tmux plugin: tmux-sidebar

A sidebar with the directory tree for the current path. Tries to make tmux more IDE like.

.tmux/scripts/helpers.sh

@@ -0,0 +1,101 @@
+get_tmux_option() {
+	local option=$1
+	local default_value=$2
+	local option_value=$(tmux show-option -gqv "$option")
+	if [ -z "$option_value" ]; then
+		echo "$default_value"
+	else
+		echo "$option_value"
+	fi
+}
+
+set_tmux_option() {
+	local option=$1
+	local value=$2
+	tmux set-option -gq "$option" "$value"
+}
+
+# Ensures a message is displayed for 5 seconds in tmux prompt.
+# Does not override the 'display-time' tmux option.
+display_message() {
+	local message="$1"
+
+	# display_duration defaults to 5 seconds, if not passed as an argument
+	if [ "$#" -eq 2 ]; then
+		local display_duration="$2"
+	else
+		local display_duration="5000"
+	fi
+
+	# saves user-set 'display-time' option
+	local saved_display_time=$(get_tmux_option "display-time" "750")
+
+	# sets message display time to 5 seconds
+	tmux set-option -gq display-time "$display_duration"
+
+	# displays message
+	tmux display-message "$message"
+
+	# restores original 'display-time' value
+	tmux set-option -gq display-time "$saved_display_time"
+}
+
+stored_key_vars() {
+	tmux show-options -g |
+		\grep -i "^${VAR_KEY_PREFIX}-" |
+		cut -d ' ' -f1 |               # cut just the variable names
+		xargs                          # splat var names in one line
+}
+
+# get the key from the variable name
+get_key_from_option_name() {
+	local option="$1"
+	echo "$option" |
+		sed "s/^${VAR_KEY_PREFIX}-//"
+}
+
+get_value_from_option_name() {
+	local option="$1"
+	echo "$(get_tmux_option "$option" "")"
+}
+
+get_pane_info() {
+	local pane_id="$1"
+	local format_strings="#{pane_id},$2"
+	tmux list-panes -t "$pane_id" -F "$format_strings" |
+		\grep "$pane_id" |
+		cut -d',' -f2-
+}
+
+sidebar_dir() {
+	echo "$SIDEBAR_DIR"
+}
+
+sidebar_file() {
+	echo "$(sidebar_dir)/directory_widths.txt"
+}
+
+directory_in_sidebar_file() {
+	local pane_current_path="$1"
+	grep -q "^${pane_current_path}\t" $(sidebar_file) 2>/dev/null
+}
+
+width_from_sidebar_file() {
+	local pane_current_path="$1"
+	grep "^${pane_current_path}\t" $(sidebar_file) |
+	cut -f2
+}
+
+# function is used to get "clean" integer version number. Examples:
+# `tmux 1.9` => `19`
+# `1.9a`     => `19`
+_get_digits_from_string() {
+	local string="$1"
+	local only_digits="$(echo "$string" | tr -dC '[:digit:]')"
+	echo "$only_digits"
+}
+
+tmux_version_int() {
+	local tmux_version_string=$(tmux -V)
+	echo "$(_get_digits_from_string "$tmux_version_string")"
+}