From 7878dcf9328658f8d6b1755fdb143ef9877b93cc Mon Sep 17 00:00:00 2001
From: Simon Ruderich <simon@ruderich.org>
Date: Mon, 17 May 2010 12:34:24 +0200
Subject: [PATCH] zsh/rc: Set PROMPT in a precmd() hook.

---
 zsh/rc | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/zsh/rc b/zsh/rc
index e29219a..635ea6d 100644
--- a/zsh/rc
+++ b/zsh/rc
@@ -241,11 +241,6 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
     }
     add-zsh-hook chpwd prompt_chpwd
 
-    # Call vcs_info as precmd before every prompt.
-    prompt_precmd() {
-        vcs_info
-    }
-    add-zsh-hook precmd prompt_precmd
 
     # Display the VCS information in the right prompt.
     if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ]]; then
@@ -256,6 +251,10 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
     else
         RPROMPT='${vcs_info_msg_0_:- }'
     fi
+
+    RUN_VCS_INFO=1
+else
+    RUN_VCS_INFO=
 fi
 
 # Set the default prompt. The current host and working directory is displayed,
@@ -264,11 +263,18 @@ fi
 #
 # The prompt is in green and blue to make easily detectable, the error exit
 # code in red and bold and the job count in yellow.
-PROMPT="$green%B%m%b$default:$blue%B%~%b$default \
+prompt_precmd() {
+    # Call vcs_info before every prompt.
+    if [[ -n $RUN_VCS_INFO ]]; then
+        vcs_info
+    fi
+
+    PROMPT="$green%B%m%b$default:$blue%B%~%b$default \
 %(1j.$yellow%j$default.)%# \
 %(?..($red%B%?%b$default%) )"
+}
+add-zsh-hook precmd prompt_precmd
 
-unset red blue green yellow default
 
 # When screen, xterm or rxvt is used set the name of the window to the
 # currently running program.
-- 
2.45.2