add screen mode (idea by jostber <http://github.com/jostber>)

To use it, set the following variables:
export MUTTJUMP_USE_SCREEN=yes
export MUTTJUMP_SCREEN_SESSION=foobar

start mutt inside screen session:
  screen -S foobar -t Sent mutt -f =Sent
  screen -X -S foobar eval "screen -t INBOX mutt -f =INBOX"
(optionally start more mutt instances)

screen window names are generated from the mailbox path using
the function MUTTJUMP_SCREEN_WINDOW_NAME_MANGLE(mbox_path),
which defaults to basename(mbox_path).

diff --git a/muttjump b/muttjump
index 8376fa0afc5611224e86147bba70a115a740b5cb..25720f453eff2cb2b69634af1420ae21716764e8 100755 (executable)
--- a/muttjump
+++ b/muttjump
@@ -21,11 +21,31 @@
 # one of: mairix, mu, mu-old (mu < 0.7) and nmzmail
 MUTTJUMP_INDEXER=${MUTTJUMP_INDEXER:-}
 
+# "limit" or "search" (default)
+MUTTJUMP_MODE=${MUTTJUMP_MODE:-search}
+
+# "yes" or "no"
+# If this is set to "yes", muttjump will not open a new instance of
+# mutt, but instead jump to the original message in a running mutt
+# (which is running in a screen session).
+MUTTJUMP_USE_SCREEN=${MUTTJUMP_USE_SCREEN:-no}
+
+# name of the screen session (screen -S ...), leave blank for none
+MUTTJUMP_SCREEN_SESSION=${MUTTJUMP_SCREEN_SESSION:-}
+
+# function to create the screen window name from the full path of the mailbox
+if ! type -p MUTTJUMP_SCREEN_WINDOW_NAME_MANGLE >/dev/null ; then
+    function MUTTJUMP_SCREEN_WINDOW_NAME_MANGLE () {
+        basename "$1"
+    }
+fi
+
 # program paths
 MUTT=${MUTT:-mutt}
 MAIRIX=${MAIRIX:-mairix}
 MU=${MU:-mu}
 NMZMAIL=${NMZMAIL:-nmzmail}
+SCREEN=${SCREEN:-screen}
 
 function die () {
     echo -e >&2 "$0: $1"
@@ -93,12 +113,32 @@ if [ ! -d "$orig_maildir/cur" ] ; then
     die "directory \"$orig_maildir\" doesn't exist or is no Maildir"
 fi
 
-# Close message-stdin and open terminal-stdin instead.
-# mutt behaves different if STDIN is no terminal
-# TODO: Find cleaner solution (e.g. mutt command-line argument?)
-exec 0<&-
-term="/dev/$(ps -p$$ --no-heading | awk '{print $2}')"
-exec < $term
+jump_cmd="<change-folder>$orig_maildir<enter><$MUTTJUMP_MODE>~i $msgid<enter>"
+
+if [ "$MUTTJUMP_USE_SCREEN" = no ] ; then
 
-# start mutt, open original folder and jump to the original message
-$MUTT -e "push <change-folder>$orig_maildir<enter><search>\"~i $msgid\"<enter>"
+    # Close message-stdin and open terminal-stdin instead.
+    # mutt behaves different if STDIN is no terminal
+    # TODO: Find cleaner solution (e.g. mutt command-line argument?)
+    exec 0<&-
+    term="/dev/$(ps -p$$ --no-heading | awk '{print $2}')"
+    exec < $term
+
+    # start mutt, open original folder and jump to the original message
+    $MUTT -e "push \"$jump_cmd\""
+
+else
+
+    screen_window_name=$(MUTTJUMP_SCREEN_WINDOW_NAME_MANGLE "$orig_maildir")
+    screen_opts=""
+    if [ -n "$MUTTJUMP_SCREEN_SESSION" ] ; then
+        screen_opts="-S $MUTTJUMP_SCREEN_SESSION"
+    fi
+
+    $SCREEN $screen_opts -X eval "select $screen_window_name" "stuff ':push \"$jump_cmd\"
+'"
+    if [ $? != 0 ] ; then
+        die "You have to manually start a screen session with:
+$SCREEN $screen_opts -t $screen_window_name $MUTT -f \"$orig_maildir\""
+    fi
+fi