X-Git-Url: https://ruderich.org/simon/gitweb/?a=blobdiff_plain;f=zsh%2Frc;h=643d7ae8a0d30227738afa49fc54f87b90693d44;hb=e531d6fcc133cfa82c0849a1845e7cbeaeff5600;hp=1a30e83094e3b79c399731437295dcabe49d36da;hpb=0388e4464474e155fd41d18266813d9ac5795cac;p=config%2Fdotfiles.git

diff --git a/zsh/rc b/zsh/rc
index 1a30e83..643d7ae 100644
--- a/zsh/rc
+++ b/zsh/rc
@@ -212,6 +212,45 @@ if [[ $ZSH_VERSION == (4.3.<9->|4.<4->*|<5->*) ||
     zstyle ':vcs_info:*' unstagedstr '¹'
     zstyle ':vcs_info:*' stagedstr   '²'
 
+    # Default to running vcs_info. If possible we prevent running it later for
+    # speed reasons. If set to a non empty value vcs_info is run.
+    FORCE_RUN_VCS_INFO=1
+
+    # Cache system inspired by Bart Trojanowski
+    # (http://jukie.net/~bart/blog/pimping-out-zsh-prompt).
+    #zstyle ':vcs_info:*+pre-get-data:*' hooks pre-get-data
+    +vi-pre-get-data() {
+        # Only Git and Mercurial support and need caching. Abort if any other
+        # VCS is used.
+        [[ "$vcs" != git && "$vcs" != hg ]] && return
+
+        # If the shell just started up or we changed directories (or for other
+        # custom reasons) we must run vcs_info.
+        if [[ -n $FORCE_RUN_VCS_INFO ]]; then
+            FORCE_RUN_VCS_INFO=
+            return
+        fi
+
+        # Don't run vcs_info by default to speed up the shell.
+        ret=1
+        # If a git/hg command was run then run vcs_info as the status might
+        # need to be updated.
+        case "$(fc -ln $(($HISTCMD-1)))" in
+            git* | g\ *)
+                ret=0
+                ;;
+            hg*)
+                ret=0
+                ;;
+        esac
+    }
+
+    # Must run vcs_info when changing directories.
+    prompt_chpwd() {
+        FORCE_RUN_VCS_INFO=1
+    }
+    add-zsh-hook chpwd prompt_chpwd
+
     # Call vcs_info as precmd before every prompt.
     prompt_precmd() {
         vcs_info
@@ -245,6 +284,9 @@ unset red blue green yellow default
 # screen is running on the remote machine instead of @screen @:hostname
 # (hostname replaced by the machine's hostname) is displayed. This only works
 # if the .zshrc on the server also uses this command.
+#
+# screen* is necessary as `screen` uses screen.linux for example for a linux
+# console.
 if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
     # Is set to a non empty value to reset the window name in the next
     # precmd() call.
@@ -532,18 +574,20 @@ source_config ~/.zsh host rc ${$(hostname)//.*/}
 # RUN COMMANDS
 
 # If not already in screen reattach to a running session or create a new one.
-#
-# screen* is necessary as `screen` uses screen.linux for example for a linux
-# console which would otherwise cause an infinite loop.
-if [[ $TERM != screen* && $TERM != 'dumb' ]]; then
+# This also starts screen one a remote server when connecting through ssh.
+if [[ $TERM != dumb && -z $STY ]]; then
     # Get running detached sessions.
     session=$(screen -list | grep 'Detached' | awk '{ print $1; exit }')
+
+    # As we exec later we have to set the title here.
+    window_preexec "screen"
+
     # Create a new session if none is running.
     if [[ -z $session ]]; then
-        screen
+        exec screen
     # Reattach to a running session.
     else
-        screen -r $session
+        exec screen -r $session
     fi
 fi