#!/bin/bash
-source $FEISTY_MEOW_SCRIPTS/core/functions.sh
+source "$FEISTY_MEOW_SCRIPTS/core/functions.sh"
+source "$FEISTY_MEOW_SCRIPTS/core/common.alias"
-# just saying this is an array...
-#declare -a PRIOR_TERMINAL_TITLES
-
-# set the stack position if not already set.
-if [ -z "$PTT_STACK_INDEX" ]; then
- # this variable records where we will push new items on the stack.
- PTT_STACK_INDEX=0
-fi
-
-# returns okay (0) if the stack is empty, or non-zero if not empty.
-function ptt_stack_empty()
-{
- if [ -z "$PTT_STACK_INDEX" ]; then
- # fix the index value.
- PTT_STACK_INDEX=0
- true
- else
- test $PTT_STACK_INDEX -le 0
- fi
-}
-
-# a debugging function that should never have been necessary.
-# a little bit furious the restore is failing during regenerate right now.
-function show_terminal_titles()
-{
- sep 14
- echo "[terminal title list now has...]"
- local i=${#PRIOR_TERMINAL_TITLES[@]}
- if ptt_stack_empty; then
- echo the terminal title list is empty.
- else
- while ((i--)); do
- echo "ent #$i: '${PRIOR_TERMINAL_TITLES[$i]}'"
- done
- fi
- sep 14
-}
-
-# adds an entry into the stack of terminal titles.
-function push_ptt_stack()
-{
- PRIOR_TERMINAL_TITLES[$PTT_STACK_INDEX]="$*"
- ((PTT_STACK_INDEX++))
-#echo stack index incremented and now at $PTT_STACK_INDEX
-#show_terminal_titles
-}
-
-function pop_ptt_stack()
-{
- if [ $PTT_STACK_INDEX -le 0 ]; then
- echo nothing to pop from prior terminal titles stack.
- else
- ((PTT_STACK_INDEX--))
-#echo stack index decremented and now at $PTT_STACK_INDEX
- CURRENT_TERM_TITLE="${PRIOR_TERMINAL_TITLES[$PTT_STACK_INDEX]}"
-#echo "got the last title as '$CURRENT_TERM_TITLE'"
-#show_terminal_titles
- fi
-}
+# uncomment this to get extra noisy debugging.
+export DEBUG_TERM_TITLE=true
# puts a specific textual label on the terminal title bar.
# this doesn't consider any previous titles; it just labels the terminal.
# the title may not be visible in some window managers.
-function set_terminal_title()
+function apply_title_to_terminal()
{
title="$*"
# if we weren't given a title, then use just the hostname. this is the degraded functionality.
if [ -z "${title}" ]; then
title="$(hostname)"
fi
- echo -n -e "\033]0;${title}\007"
+
+ if [ "${TERM}" != "dumb" -a -z "$PBS_ENVIRONMENT" -a ! -z "$PS1" ]; then
+ echo -n -e "\033]0;${title}\007"
+ else
+ # not running interactively, so just echo the title.
+ sep
+ echo ${title}
+ sep
+ fi
}
-# reads the current terminal title, if possible, and saves it to our stack of titles.
-function save_terminal_title()
+# user friendly version that saves the title being added.
+function set_terminal_title()
{
+ apply_title_to_terminal $*
+ # we're enforcing a new title from here on.
+ unset PRIOR_TERMINAL_TITLE
+ save_terminal_title
+}
+
+# echoes back the current title on the terminal window, if we can acquire it.
+function get_terminal_title()
+{
+ local term_title_found=""
# save the former terminal title if we're running in X with xterm.
which xprop &>/dev/null
if [ $? -eq 0 ]; then
- if [[ "$TERM" =~ .*"xterm".* ]]; then
- local prior_title="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
- if [ ! -z "$prior_title" ]; then
-#echo "saving prior terminal title as '$prior_title'"
- push_ptt_stack "$prior_title"
-# else
-#echo "not saving prior terminal title which was empty"
- fi
+ # make sure we're actually using xterm *and* that we have a window ID.
+ if [[ "$TERM" =~ .*"xterm".* && ! -z "$WINDOWID" ]]; then
+ term_title_found="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
+ fi
+ fi
+ echo "$term_title_found"
+}
+
+# reads the current terminal title, if possible, and saves it to our record.
+function save_terminal_title()
+{
+ local title="$(get_terminal_title)"
+ if [ ! -z "$title" ]; then
+ # there was a title, so save it.
+ if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+ echo "saving prior terminal title as '$prior_title'"
+ fi
+ export PRIOR_TERMINAL_TITLE="$prior_title"
+ else
+ # the terminal had no title, or we couldn't access it, or there's no terminal.
+ if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+ echo "not saving prior terminal title which was empty"
fi
fi
}
# if [ -z "$(echo $* | grep git)" ]; then
# run the terminal labeller to restore the prior title, if there was one.
- if ! ptt_stack_empty; then
- pop_ptt_stack
-#echo "restoring prior terminal title of '$CURRENT_TERM_TITLE'"
- set_terminal_title "$CURRENT_TERM_TITLE"
+ if [ ! -z "$PRIOR_TERMINAL_TITLE" ]; then
+ if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+ echo "restoring prior terminal title of '$PRIOR_TERMINAL_TITLE'"
+ fi
+ apply_title_to_terminal "$PRIOR_TERMINAL_TITLE"
fi
}
function label_terminal_with_info()
{
# we only label the terminal anew if there's no saved title.
- if ptt_stack_empty; then
+ if [ -z "$PRIOR_TERMINAL_TITLE" ]; then
+ if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+ echo "showing new generated title since prior title was empty"
+ fi
pruned_host=$(echo $HOSTNAME | sed -e 's/^\([^\.]*\)\..*$/\1/')
date_string=$(date +"%Y %b %e @ %T")
user=$USER
user=$USERNAME
fi
new_title="-- $user@$pruned_host -- [$date_string]"
- set_terminal_title "$new_title"
+ apply_title_to_terminal "$new_title"
+ save_terminal_title
else
# use the former title; paste it back up there just in case.
-#echo "showing prior terminal title since there was a prior title!"
- pop_ptt_stack
-#echo "using prior terminal title of '$CURRENT_TERM_TITLE'"
- set_terminal_title "$CURRENT_TERM_TITLE"
- push_ptt_stack "$CURRENT_TERM_TITLE"
+ if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+ echo "showing prior terminal title since there was a prior title!"
+ echo "using prior terminal title of '$PRIOR_TERMINAL_TITLE'"
+ fi
+ apply_title_to_terminal "$PRIOR_TERMINAL_TITLE"
fi
}
projects / feisty_meow.git / blobdiff