zsh/rc: Only call uname once.

[config/dotfiles.git] / zsh / rc

diff --git a/zsh/rc b/zsh/rc
index 3d6b28d5fc94186c5d77ab3a2552252773bf28f3..ee2737b833a4c5976dc378119baa06872d882c0f 100644 (file)
--- a/zsh/rc
+++ b/zsh/rc
@@ -132,7 +132,8 @@ bindkey -a "^N" history-beginning-search-forward
 # Use colorized output, necessary for prompts and completions.
 autoload -U colors && colors
 
-# Some shortcuts for colors.
+# Some shortcuts for colors. The %{...%} tells zsh that the data in between
+# doesn't need any space, necessary for correct prompt draw.
 local red="%{${fg[red]}%}"
 local blue="%{${fg[blue]}%}"
 local green="%{${fg[green]}%}"
@@ -227,8 +228,10 @@ unset red blue green yellow default
 #
 # If a command is run with sudo or if the shell is running as root then a ! is
 # added at the beginning of the command to make this clear. If a command is
-# running on a different computer with ssh a @ is added at the beginning. This
-# only works if the .zshrc on the server also uses this command.
+# running on a different computer with ssh a @ is added at the beginning. If
+# 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.
 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.
@@ -268,7 +271,7 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
             m)
                 program_name=mutt
                 ;;
-            v|vi)
+            v)
                 program_name=vim
                 ;;
         esac
@@ -283,6 +286,12 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
         # different computer.
         if [[ -n $SSH_CONNECTION ]]; then
             program_name="@$program_name"
+
+            # If screen is running in SSH then display "@:hostname" as title
+            # in the term/outer screen.
+            if [[ $program_name == @screen ]]; then
+                program_name="@:${$(hostname)//.*/}"
+            fi
         fi
 
         # Set the window name to the currently running program.
@@ -318,14 +327,15 @@ if [[ $TERM == screen* || $TERM == xterm* || $TERM == rxvt* ]]; then
     }
 
     # Sets the window title. Works with screen, xterm and rxvt.
-    window_title() {
-        if [[ $TERM == screen* ]]; then
+    if [[ $TERM == screen* ]]; then
+        window_title() {
             print -n "\ek$1\e\\"
-
-        elif [[ $TERM == xterm* || $TERM == rxvt* ]]; then
+        }
+    elif [[ $TERM == xterm* || $TERM == rxvt* ]]; then
+        window_title() {
             print -n "\e]2;$1\e\\"
-        fi
-    }
+        }
+    fi
 
     # Add the preexec() and precmd() hooks.
     add-zsh-hook preexec window_preexec
@@ -376,12 +386,14 @@ zstyle ':completion:*' group-name ''
 zstyle ':completion:*:functions' ignored-patterns '_*'
 # Ignore parent directory.
 zstyle ':completion:*:(cd|mv|cp):*' ignore-parents parent pwd
-# When unsetting variables make sure every variable name is only suggested
-# once.
-zstyle ':completion:*:unset:*' ignore-line yes
-# When working with Mercurial and Git don't complete the same file multiple
-# times. Very useful when completing file names.
-zstyle ':completion:*:(hg|git)*:*' ignore-line yes
+# Always complete one value (file name) only once in the current line. This
+# makes it easy to complete multiple values because I can just press tab to
+# get all possible values. Otherwise I would have to skip the first value
+# again and again.
+zstyle ':completion:*' ignore-line yes
+# Except for mv and cp, because I often want to use to similar names, so I
+# complete to the same and change it.
+zstyle ':completion:*:(mv|cp):*' ignore-line no
 
 
 # CUSTOM ALIASES AND FUNCTIONS
@@ -464,14 +476,16 @@ tig() {
 
 # OS SPECIFIC SETTINGS
 
-if [[ $(uname) == Linux ]]; then
+local uname=$(uname)
+
+if [[ $uname == Linux ]]; then
     # Settings when creating Debian packages.
     DEBEMAIL=simon@ruderich.org
     export DEBEMAIL
     DEBFULLNAME="Simon Ruderich"
     export DEBFULLNAME
 
-elif [[ $(uname) == Darwin ]]; then # Mac OS X
+elif [[ $uname == Darwin ]]; then # Mac OS X
     # Store the current clipboard in CLIPBOARD before every command so it can
     # be used in commands.
     os_darwin_preexec() {