From 11f3d1e7c54083de41c7539d630f1ff926a5baae Mon Sep 17 00:00:00 2001
From: Dustin Kirkland <kirkland@ubuntu.com>
Date: Thu, 11 Aug 2011 10:25:46 -0500
Subject: [PATCH] * usr/bin/byobu-janitor, usr/share/byobu/profiles/common: LP:
 #823581   - when a status item is disabled, remove the backtick command
 entirely     from the current screen configuration;  this *drastically*
 reduces     the number of no-op byobu-status calls (60+ per minute, per
 session)

---
 debian/changelog                |  4 ++++
 usr/bin/byobu-janitor           | 16 +++++++++++++++-
 usr/share/byobu/profiles/common |  1 +
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/debian/changelog b/debian/changelog
index 97b1cc09..7d9e75e1 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -10,6 +10,10 @@ byobu (4.29) unreleased; urgency=low
     - back and forth, back and forth on this color issue;
       the previous version looked terrible (too bold) on stock
       Ubuntu/gnome-terminal
+  * usr/bin/byobu-janitor, usr/share/byobu/profiles/common: LP: #823581
+    - when a status item is disabled, remove the backtick command entirely
+      from the current screen configuration;  this *drastically* reduces
+      the number of no-op byobu-status calls (60+ per minute, per session)
 
  -- Dustin Kirkland <kirkland@ubuntu.com>  Wed, 10 Aug 2011 18:24:27 -0500
 
diff --git a/usr/bin/byobu-janitor b/usr/bin/byobu-janitor
index a5310047..b5e60a39 100755
--- a/usr/bin/byobu-janitor
+++ b/usr/bin/byobu-janitor
@@ -23,9 +23,22 @@ PKG="byobu"
 [ -z "${BYOBU_PREFIX}" ] && export BYOBU_PREFIX="/usr" || export BYOBU_PREFIX
 . "${BYOBU_PREFIX}/lib/${PKG}/.common"
 
-FLAG="$BYOBU_RUN_DIR/reload-required"
+# Source configurations and disable unused backticks
+for i in "$BYOBU_PREFIX/share/$PKG/status/status" "$BYOBU_CONFIG_DIR/status"; do
+        [ -r "$i" ] && . "$i"
+done
+rm -f "$BYOBU_CONFIG_DIR/backticks"
+for i in "$BYOBU_PREFIX/lib/$PKG/"*; do
+	i=${i##*/}
+	eval x="\$$i" || true
+	if [ "$x" != "1" ]; then
+		num=$(grep "^backtick.*byobu-status $i$" "$BYOBU_PREFIX/share/$PKG/profiles/common" | awk '{print $2}')
+		[ -n "$num" ] && echo "backtick $num # $i" >> "$BYOBU_CONFIG_DIR/backticks"
+	fi
+done
 
 # Exit immediately, if we're not forced, and there is no reload flag
+FLAG="$BYOBU_RUN_DIR/reload-required"
 if [ "$1" != "--force" ] && [ ! -e "$FLAG" ]; then
 	exit 0
 fi
@@ -52,6 +65,7 @@ fi
 [ -r "$BYOBU_CONFIG_DIR/profile.tmux" ] || echo "source-file $BYOBU_PREFIX/share/$PKG/profiles/tmux" > "$BYOBU_CONFIG_DIR/profile.tmux"
 [ -r "$BYOBU_CONFIG_DIR/keybindings" ] || echo "source $BYOBU_PREFIX/share/$PKG/keybindings/common" > "$BYOBU_CONFIG_DIR/keybindings"
 [ -r "$BYOBU_CONFIG_DIR/windows" ] || touch "$BYOBU_CONFIG_DIR/windows"
+[ -r "$BYOBU_CONFIG_DIR/backticks" ] || touch "$BYOBU_CONFIG_DIR/backticks"
 [ -r "$HOME/.screenrc" ] || touch "$HOME/.screenrc"
 for f in status statusrc; do
 	if [ ! -r "$BYOBU_CONFIG_DIR/$f" ]; then
diff --git a/usr/share/byobu/profiles/common b/usr/share/byobu/profiles/common
index d8c4468c..06878022 100644
--- a/usr/share/byobu/profiles/common
+++ b/usr/share/byobu/profiles/common
@@ -124,3 +124,4 @@ hardstatus string '%99`%{-}%{=r}%12` %100`%112`%=%117`%133`%130`%135`%102`%101`%
 #  * http://savannah.gnu.org/bugs/?22146
 
 source $BYOBU_CONFIG_DIR/keybindings
+source $BYOBU_CONFIG_DIR/backticks