Initial commit of the working files

1 files changed, 142 insertions, 0 deletions

diff --git a/lib/powerline.sh b/lib/powerline.sh
new file mode 100644
index 0000000..3a3fb68
--- /dev/null
+++ b/lib/powerline.sh
@@ -0,0 +1,142 @@
+# Library functions
+
+print_powerline() {
+	local side="$1"
+	local upper_side=$(echo "$1" | tr '[:lower:]' '[:upper:]')
+	eval "local input_segments=(\"\${TMUX_POWERLINE_${upper_side}_STATUS_SEGMENTS[@]}\")"
+	local powerline_segments=()
+	local powerline_segment_contents=()
+
+	__check_platform
+
+	__process_segment_defaults
+	__process_scripts
+	__process_colors
+
+	__process_powerline
+}
+
+__process_segment_defaults() {
+	for segment_index in "${!input_segments[@]}"; do
+		local input_segment=(${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} \
+		)
+
+		powerline_segments[$segment_index]="${powerline_segment_with_defaults[@]}"
+	done
+}
+
+__process_scripts() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+
+		if [ -n "$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"
+		fi
+
+		export TMUX_POWERLINE_CUR_SEGMENT_BG="${powerline_segment[1]}"
+		export TMUX_POWERLINE_CUR_SEGMENT_FG="${powerline_segment[2]}"
+		source "$script"
+		local output
+		output=$(run_segment)
+		local exit_code="$?"
+		unset -f run_segment
+
+		if [ "$exit_code" -ne 0 ] && debug_mode_enabled ; then
+			local seg_name="${script##*/}"
+			echo "Segment '${seg_name}' exited with code ${exit_code}. Aborting."
+			exit 1
+		fi
+
+		if [ -n "$output" ]; then
+			powerline_segment_contents[$segment_index]=" $output "
+		else
+			unset -v powerline_segments[$segment_index]
+		fi
+	done
+}
+
+__process_colors() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+	 	# 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
+			[[ -n ${powerline_segments[next_segment_index]} ]] && break
+		done
+		local next_segment=(${powerline_segments[$next_segment_index]})
+
+		if [ $side == 'left' ]; then
+			powerline_segment[4]=${next_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
+		elif [ $side == 'right' ]; then
+			powerline_segment[4]=${previous_background_color:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
+		fi
+
+		if __segment_separator_is_thin; then
+			powerline_segment[5]=${powerline_segment[2]}
+		else
+			powerline_segment[5]=${powerline_segment[1]}
+		fi
+
+		local previous_background_color=${powerline_segment[1]}
+
+		powerline_segments[$segment_index]="${powerline_segment[@]}"
+	done
+}
+
+__process_powerline() {
+	for segment_index in "${!powerline_segments[@]}"; do
+		local powerline_segment=(${powerline_segments[$segment_index]})
+
+		local background_color=${powerline_segment[1]}
+		local foreground_color=${powerline_segment[2]}
+		local separator=${powerline_segment[3]}
+		local separator_background_color=${powerline_segment[4]}
+		local separator_foreground_color=${powerline_segment[5]}
+
+		eval "__print_${side}_segment ${segment_index} ${background_color} ${foreground_color} ${separator} ${separator_background_color} ${separator_foreground_color}"
+	done
+}
+
+__print_left_segment() {
+	local content=${powerline_segment_contents[$1]}
+	local content_background_color=$2
+	local content_foreground_color=$3
+	local separator=$4
+	local separator_background_color=$5
+	local separator_foreground_color=$6
+
+	__print_colored_content "$content" $content_background_color $content_foreground_color
+	__print_colored_content $separator $separator_background_color $separator_foreground_color
+}
+
+__print_right_segment() {
+	local content=${powerline_segment_contents[$1]}
+	local content_background_color=$2
+	local content_foreground_color=$3
+	local separator=$4
+	local separator_background_color=$5
+	local separator_foreground_color=$6
+
+	__print_colored_content $separator $separator_background_color $separator_foreground_color
+	__print_colored_content "$content" $content_background_color $content_foreground_color
+}
+
+__segment_separator_is_thin() {
+	[[ ${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_LEFT_THIN || \
+		${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_RIGHT_THIN ]];
+}
+
+__check_platform() {
+	if [ "$SHELL_PLATFORM" == "unknown" ] && debug_mode_enabled; then
+		 echo "Unknown platform; modify config/shell.sh"  &1>&2
+	fi
+}
+