Merge branch 'master' of github.com:fredhamster/feisty_meow into dev

[feisty_meow.git] / scripts / tty / terminal_titler.sh

diff --git a/scripts/tty/terminal_titler.sh b/scripts/tty/terminal_titler.sh
index 8bc6ccd36d3c31b1145b3df0c1c401d58414beba..939c1cce14a7b0f3e1078c59cdbbd2fddc82a7f0 100644 (file)
--- a/scripts/tty/terminal_titler.sh
+++ b/scripts/tty/terminal_titler.sh
@@ -17,7 +17,8 @@ function apply_title_to_terminal()
     title="$(hostname)"
   fi
   
-  if [ "${TERM}" != "dumb" -a -z "$PBS_ENVIRONMENT" -a ! -z "$PS1" ]; then
+  if [ "${TERM}" != "dumb" -a -z "$PBS_ENVIRONMENT" -a \
+        ! -z "$PS1" -a "${TERM}" != "linux" ]; then
     echo -n -e "\033]0;${title}\007"
   else
     # not running interactively, so just echo the title.
@@ -31,28 +32,68 @@ function apply_title_to_terminal()
 function set_terminal_title()
 {
   apply_title_to_terminal $*
+
+#tricky attempts to get it to be available when we ask for it in get_terminal_title
+  sync
+#  echo -n
+
+#  # we're enforcing a new title from here on.
+#  unset PRIOR_TERMINAL_TITLE
   save_terminal_title
 }
 
-# reads the current terminal title, if possible, and saves it to our record.
-function save_terminal_title()
+# echoes back the current title on the terminal window, if we can acquire it.
+function get_terminal_title()
 {
+#hmmm: totally failing since gnome doesn't provide the info we need like it should; WINDOWID is empty.
+#hmmm: need to revise this somehow to work around that, but nothing is quite right so far.
+#hmmm: had to disable the xwininfo approach because it's super messy (console noise) and still isn't right (just like xdotool approach wasn't right).
+
+  # this is an important value now; it is checked for in save_terminal_title.
+  local term_title_found="unknown"
   # save the former terminal title if we're running in X with xterm.
-  which xprop &>/dev/null
-  if [ $? -eq 0 ]; then
-    # make sure we're actually using xterm *and* that we have a window ID.
-    if [[ "$TERM" =~ .*"xterm".* && ! -z "$WINDOWID" ]]; then
-      local prior_title="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
-      if [ ! -z "$prior_title" ]; then
-        if [ ! -z "$DEBUG_TERM_TITLE" ]; then
-          echo "saving prior terminal title as '$prior_title'"
-        fi
-        export PRIOR_TERMINAL_TITLE="$prior_title"
-      else
-        if [ ! -z "$DEBUG_TERM_TITLE" ]; then
-          echo "not saving prior terminal title which was empty"
-        fi
+
+  # are we even running a terminal?
+#hmmm: abstract out that condition below to check against a list of names.
+  if [[ "$TERM" =~ .*"xterm".* ]]; then
+    # check that we have a window ID.
+    if [[ ! -z "$WINDOWID" ]]; then
+      # the window id exists in the variable; can we get its info?
+      if [[ ! -z "$(which xprop)" ]]; then
+        # sweet, we have all the info we need to get this done.
+        term_title_found="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
       fi
+    else
+      # gnome-terminal doesn't set WINDOWID currently; we can try to work around this.
+      false
+#hmmm: so far, none of these approaches are any good.
+#      # not good solution; gets wrong titles.  plus uses xdotool which is not installed by default in ubuntu.
+#      if [[ ! -z "$(which xdotool)" ]]; then
+#        term_title_found="$(xprop -id $(xdotool getactivewindow) | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
+#      fi
+#      # this solution also fails by getting the wrong window title if this one isn't focussed.
+#      if [[ ! -z "$(which xwininfo)" ]]; then
+#        term_title_found=$(xwininfo -id $(xprop -root | awk '/NET_ACTIVE_WINDOW/ { print $5; exit }') | awk -F\" '/xwininfo:/ { print $2; exit }')
+#      fi
+    fi
+  fi
+  echo -n "$term_title_found"
+}
+
+# reads the current terminal title, if possible, and saves it to our record.
+function save_terminal_title()
+{
+  local title="$(get_terminal_title)"
+  if [ "$title" != "unknown" ]; then
+    # there was a title, so save it.
+    if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+      echo "saving prior terminal title as '$title'"
+    fi
+    export PRIOR_TERMINAL_TITLE="$title"
+  else
+    # the terminal had no title, or we couldn't access it, or there's no terminal.
+    if [ ! -z "$DEBUG_TERM_TITLE" ]; then
+      echo "not saving prior terminal title which was empty"
     fi
   fi
 }
@@ -83,7 +124,7 @@ function label_terminal_with_info()
     fi
     pruned_host=$(echo $HOSTNAME | sed -e 's/^\([^\.]*\)\..*$/\1/')
     date_string=$(date +"%Y %b %e @ %T")
-    user=$USER
+    user="$(logname)"
     if [ -z "$user" ]; then
       # try snagging the windoze name.
       user=$USERNAME