143 lines
4.6 KiB
Bash
143 lines
4.6 KiB
Bash
# Library functions
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print_powerline() {
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local side="$1"
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local upper_side=$(echo "$1" | tr '[:lower:]' '[:upper:]')
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eval "local input_segments=(\"\${TMUX_POWERLINE_${upper_side}_STATUS_SEGMENTS[@]}\")"
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local powerline_segments=()
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local powerline_segment_contents=()
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__check_platform
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__process_segment_defaults
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__process_scripts
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__process_colors
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__process_powerline
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}
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__process_segment_defaults() {
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for segment_index in "${!input_segments[@]}"; do
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local input_segment=(${input_segments[$segment_index]})
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eval "local default_separator=\$TMUX_POWERLINE_DEFAULT_${upper_side}SIDE_SEPARATOR"
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powerline_segment_with_defaults=(
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${input_segment[0]:-"no_script"} \
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${input_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR} \
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${input_segment[2]:-$TMUX_POWERLINE_DEFAULT_FOREGROUND_COLOR} \
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${input_segment[3]:-$default_separator} \
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)
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powerline_segments[$segment_index]="${powerline_segment_with_defaults[@]}"
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done
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}
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__process_scripts() {
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for segment_index in "${!powerline_segments[@]}"; do
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local powerline_segment=(${powerline_segments[$segment_index]})
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if [ -n "$TMUX_POWERLINE_DIR_USER_SEGMENTS" ] && [ -f "$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh" ] ; then
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local script="$TMUX_POWERLINE_DIR_USER_SEGMENTS/${powerline_segment[0]}.sh"
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else
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local script="$TMUX_POWERLINE_DIR_SEGMENTS/${powerline_segment[0]}.sh"
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fi
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export TMUX_POWERLINE_CUR_SEGMENT_BG="${powerline_segment[1]}"
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export TMUX_POWERLINE_CUR_SEGMENT_FG="${powerline_segment[2]}"
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source "$script"
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local output
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output=$(run_segment)
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local exit_code="$?"
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unset -f run_segment
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if [ "$exit_code" -ne 0 ] && debug_mode_enabled ; then
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local seg_name="${script##*/}"
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echo "Segment '${seg_name}' exited with code ${exit_code}. Aborting."
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exit 1
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fi
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if [ -n "$output" ]; then
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powerline_segment_contents[$segment_index]=" $output "
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else
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unset -v powerline_segments[$segment_index]
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fi
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done
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}
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__process_colors() {
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for segment_index in "${!powerline_segments[@]}"; do
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local powerline_segment=(${powerline_segments[$segment_index]})
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# Find the next segment that produces content (i.e. skip empty segments).
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for next_segment_index in $(eval echo {$(($segment_index + 1))..${#powerline_segments}}) ; do
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[[ -n ${powerline_segments[next_segment_index]} ]] && break
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done
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local next_segment=(${powerline_segments[$next_segment_index]})
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if [ $side == 'left' ]; then
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powerline_segment[4]=${next_segment[1]:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
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elif [ $side == 'right' ]; then
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powerline_segment[4]=${previous_background_color:-$TMUX_POWERLINE_DEFAULT_BACKGROUND_COLOR}
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fi
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if __segment_separator_is_thin; then
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powerline_segment[5]=${powerline_segment[2]}
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else
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powerline_segment[5]=${powerline_segment[1]}
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fi
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local previous_background_color=${powerline_segment[1]}
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powerline_segments[$segment_index]="${powerline_segment[@]}"
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done
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}
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__process_powerline() {
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for segment_index in "${!powerline_segments[@]}"; do
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local powerline_segment=(${powerline_segments[$segment_index]})
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local background_color=${powerline_segment[1]}
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local foreground_color=${powerline_segment[2]}
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local separator=${powerline_segment[3]}
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local separator_background_color=${powerline_segment[4]}
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local separator_foreground_color=${powerline_segment[5]}
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eval "__print_${side}_segment ${segment_index} ${background_color} ${foreground_color} ${separator} ${separator_background_color} ${separator_foreground_color}"
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done
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}
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__print_left_segment() {
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local content=${powerline_segment_contents[$1]}
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local content_background_color=$2
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local content_foreground_color=$3
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local separator=$4
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local separator_background_color=$5
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local separator_foreground_color=$6
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__print_colored_content "$content" $content_background_color $content_foreground_color
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__print_colored_content $separator $separator_background_color $separator_foreground_color
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}
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__print_right_segment() {
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local content=${powerline_segment_contents[$1]}
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local content_background_color=$2
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local content_foreground_color=$3
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local separator=$4
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local separator_background_color=$5
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local separator_foreground_color=$6
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__print_colored_content $separator $separator_background_color $separator_foreground_color
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__print_colored_content "$content" $content_background_color $content_foreground_color
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}
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__segment_separator_is_thin() {
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[[ ${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_LEFT_THIN || \
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${powerline_segment[3]} == $TMUX_POWERLINE_SEPARATOR_RIGHT_THIN ]];
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}
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__check_platform() {
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if [ "$SHELL_PLATFORM" == "unknown" ] && debug_mode_enabled; then
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echo "Unknown platform; modify config/shell.sh" &1>&2
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fi
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}
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