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name : byobu-status #!/bin/sh # # byobu-status: byobu's cached status gathering # # Copyright (C) 2011-2014 Dustin Kirkland # # Authors: Dustin Kirkland <kirkland@byobu.org> # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, version 3 of the License. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. PKG="byobu" [ -r "$HOME/.byoburc" ] && . "$HOME/.byoburc" [ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="/usr" || export BYOBU_PREFIX . "${BYOBU_PREFIX}/lib/${PKG}/include/common" # Make sure status is not disabled [ -f "$BYOBU_CONFIG_DIR/status.disable" ] && exit 0 # Clean and create cache directories [ -d "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND" ] || mkdir -p "$BYOBU_RUN_DIR/status.$BYOBU_BACKEND" [ -d "$BYOBU_RUN_DIR/.last.$BYOBU_BACKEND" ] || mkdir -p "$BYOBU_RUN_DIR/.last.$BYOBU_BACKEND" # Source configurations . "${BYOBU_PREFIX}/lib/${PKG}/include/icons" for i in "${BYOBU_PREFIX}/share/$PKG/status/status" "${BYOBU_PREFIX}/share/$PKG/status/statusrc" "$BYOBU_CONFIG_DIR/status" "$BYOBU_CONFIG_DIR/statusrc" "$BYOBU_CONFIG_DIR/color" "$BYOBU_CONFIG_DIR/color.tmux"; do [ -r "$i" ] && . "$i" done [ -r "$BYOBU_CONFIG_DIR/datetime.tmux" ] && . "$BYOBU_CONFIG_DIR/datetime.tmux" case "$BYOBU_BACKEND" in screen) # Reload profile, if necessary if [ -e "/var/run/screen/S-$USER/$PKG.reload-required" ] || [ -e "$BYOBU_RUN_DIR/reload-required" ]; then if [ -r "$BYOBU_CONFIG_DIR/profile" ]; then # If the forced janitorial steps succeed, try a profile reload byobu-janitor --force && screen -X at 0 source "$BYOBU_CONFIG_DIR/profile" >/dev/null 2>&1 fi fi ;; tmux) # Fix status printing for small terminal sizes in tmux width=$(tmux list-windows -F "#{session_width}") if [ -r "$BYOBU_RUN_DIR/width" ]; then read w_last < $BYOBU_RUN_DIR/width 2>/dev/null 1>&2 else w_last=0 fi for w in $width; do if [ "$w" != "$w_last" ]; then # go through cat due to possible tmux/epoll bug tmux set -g status-left-length $(($w*1/4)) | cat >/dev/null 2>&1 tmux set -g status-right-length $(($w*3/4)) | cat >/dev/null 2>&1 printf "$w" > $BYOBU_RUN_DIR/width break fi done ;; esac # Get the current timestamp get_now; NOW=${_RET} get_status() { local cachepath="$BYOBU_RUN_DIR/status.$BYOBU_BACKEND/$1" local lastpath="$BYOBU_RUN_DIR/.last.$BYOBU_BACKEND/$1" local lastrun=0 [ -r "$lastpath" ] && read lastrun < "$lastpath" case "$1" in ip_address4) local IPV6=0 local function="ip_address" ;; ip_address6) local IPV6=1 local function="ip_address" ;; *) local function="$1" ;; esac status_freq "$function" local expiry=$(($lastrun+$_RET)) find_script "$function" && . "${_RET}" # Update cache now, if necessary if [ $NOW -ge $expiry ] || [ "$lastrun" = "0" ]; then "__$function" > "$cachepath".new fi # Check if we have data in the cache if [ -s "$cachepath".new ]; then # Looks like we have an updated cache, use it mv -f "$cachepath".new "$cachepath" printf "%s" "$NOW" > "$lastpath" IFS= read line < "$cachepath"; printf "%s" "$line" elif [ -s "$cachepath" ]; then # New cache is empty, but we have data from our last run, use it IFS= read line < "$cachepath"; printf "%s" "$line" fi } case "$1" in *left|*right) eval items="\$$1" for i in $items; do if [ "$BYOBU_BACKEND" = "tmux" ]; then case "$i" in \#date) if [ -n "$BYOBU_DATE" ]; then $BYOBU_SED_INLINE -e "/BYOBU_DATE=/d" "$BYOBU_CONFIG_DIR/datetime.tmux" printf "%s\n" 'BYOBU_DATE=' >> "$BYOBU_CONFIG_DIR/datetime.tmux" touch "$BYOBU_RUN_DIR/reload-required" continue fi ;; \#time) if [ -n "$BYOBU_TIME" ]; then $BYOBU_SED_INLINE -e "/BYOBU_TIME=/d" "$BYOBU_CONFIG_DIR/datetime.tmux" printf "%s\n" 'BYOBU_TIME=' >> "$BYOBU_CONFIG_DIR/datetime.tmux" touch "$BYOBU_RUN_DIR/reload-required" continue fi ;; date) if [ -z "$BYOBU_DATE" ]; then $BYOBU_SED_INLINE -e "/BYOBU_DATE=/d" "$BYOBU_CONFIG_DIR/datetime.tmux" printf "%s\n" 'BYOBU_DATE="%Y-%m-%d "' >> "$BYOBU_CONFIG_DIR/datetime.tmux" touch "$BYOBU_RUN_DIR/reload-required" continue fi ;; time) if [ -z "$BYOBU_TIME" ]; then $BYOBU_SED_INLINE -e "/BYOBU_TIME=/d" "$BYOBU_CONFIG_DIR/datetime.tmux" printf "%s\n" 'BYOBU_TIME="%H:%M:%S"' >> "$BYOBU_CONFIG_DIR/datetime.tmux" touch "$BYOBU_RUN_DIR/reload-required" continue fi ;; esac fi case "$i" in \#*) continue ;; esac get_status "$i" done ;; --detail) VER= if eval $BYOBU_TEST dpkg-query >/dev/null; then VER=$(set -- $(dpkg-query --show $PKG); printf "%s\n" "$2") fi printf "$PKG-$VER Detailed Status Navigation\n" if eval $BYOBU_TEST vim >/dev/null && `vim --version | grep -q +folding`; then printf " Expand all - zr\t\tCollapse all - zm\n Expand one - zo\t\tCollapse one - zc\n\n" fi for i in "$BYOBU_PREFIX/lib/$PKG"/*; do [ -f "$i" ] || continue i=${i##*/} case "$i" in include|menu|notify_osd|time_binary) continue ;; esac find_script "$i" && . "${_RET}" short=$(eval "__${i}" | $BYOBU_SED -e 's/^\s*//' -e 's/\s*$//' -e 's/.{[^}]*}//g') detail=$(eval "__${i}_detail" 2>/dev/null | $BYOBU_SED -e '/^$/d' -e 's/^/\t/g') printf "%s\n\t(%s)\n" "$short" "$i" [ -n "$detail" ] && printf "%s\n" "$detail" done ;; color) [ -z "$FOREGROUND" ] && FOREGROUND="w" [ -z "$BACKGROUND" ] && BACKGROUND="k" printf "$ESC{= $BACKGROUND$FOREGROUND}" ;; esac