zsh: Add new global alias S which calls sort.

[config/dotfiles.git] / zsh / rc

diff --git a/zsh/rc b/zsh/rc
index f283279fe4d1fc01c3c28544f411522104739136..e5d41202b833274aa29ef8a755e998bda8f8d256 100644 (file)
--- a/zsh/rc
+++ b/zsh/rc
@@ -32,6 +32,8 @@ setopt ignoreeof
 
 # FUNCTION SETTINGS
 
+# Make sure every entry in $fpath is unique.
+typeset -U fpath
 # Set correct fpath to allow loading my functions (including completion
 # functions).
 fpath=(~/.zsh/functions $fpath)
@@ -41,9 +43,12 @@ autoload ${fpath[1]}/^_*(^/:t)
 
 # Simulate hooks using _functions arrays for Zsh versions older then 4.3.4. At
 # the moment only precmd() and preexec() are simulated.
-if [[ $ZSH_VERSION != (4.3.<4->|4.<4->*|<5->*) ]]; then
+#
+# At least 4.3.4 (not sure about later versions) has an error in add-zsh-hook
+# so the compatibility version is used there too.
+if [[ $ZSH_VERSION != (4.3.<5->|4.<4->*|<5->*) ]]; then
     # Provide add-zsh-hook which was added in 4.3.4.
-    fpath=($fpath ~/.zsh/functions/compatibility)
+    fpath=(~/.zsh/functions/compatibility $fpath)
 
     # Run all functions defined in the ${precmd,preexec}_functions arrays.
     function precmd() {
@@ -132,7 +137,11 @@ fi
 # It works with screen and xterm. If screen is running in X11 (DISPLAY is set)
 # and stumpwm is used (it's tested if stumpish is available) then the window
 # title is also set in stumpwm using stumpish.
-if [[ $TERM == screen || $TERM == xterm* ]]; then
+#
+# 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.
+if [[ $TERM == screen* || $TERM == xterm* ]]; then
     # Set to a non empty value to reset the window name in the next precmd()
     # call.
     window_reset=yes
@@ -141,14 +150,21 @@ if [[ $TERM == screen || $TERM == xterm* ]]; then
     if [[ $? -eq 0 ]]; then
         window_stumpwm=yes
     fi
+    # Set to a non empty value when the shell is running as root.
+    if [[ $(id -u) -eq 0 ]]; then
+        window_root=yes
+    fi
 
     window_preexec() {
         # Get the program name with its arguments.
         local program_name=$1
+
         # When sudo is used use real program name instead, but with an
         # exclamation mark at the beginning.
+        local program_sudo=
         if [[ $program_name == sudo* ]]; then
-            program_name=!${program_name#sudo }
+            program_name=${program_name#sudo }
+            program_sudo=yes
         fi
         # Remove all arguments from the program name.
         program_name=${program_name%% *}
@@ -174,6 +190,18 @@ if [[ $TERM == screen || $TERM == xterm* ]]; then
                 ;;
         esac
 
+        # Add an exclamation mark at the beginning if running with sudo or if
+        # running zsh as root.
+        if [[ -n $program_sudo || -n $window_root ]]; then
+            program_name=!$program_name
+        fi
+
+        # Add an at mark at the beginning if running ssh on a different
+        # computer.
+        if [[ -n $SSH_CONNECTION ]]; then
+            program_name="@$program_name"
+        fi
+
         # Set the window name to the currently running program.
         window_title "$program_name"
 
@@ -186,7 +214,13 @@ if [[ $TERM == screen || $TERM == xterm* ]]; then
         [[ -z $window_reset ]] && return
 
         # Reset the window name to 'zsh'.
-        window_title "zsh"
+        if [[ -n $SSH_CONNECTION ]]; then
+            window_title "@zsh"
+        elif [[ -n $window_root ]]; then
+            window_title "!zsh"
+        else
+            window_title "zsh"
+        fi
 
         # Just reset the name, so no screen reset necessary for the moment.
         window_reset=
@@ -194,7 +228,7 @@ if [[ $TERM == screen || $TERM == xterm* ]]; then
 
     # Sets the window title. Works with screen and xterm.
     window_title() {
-        if [[ $TERM == screen ]]; then
+        if [[ $TERM == screen* ]]; then
             print -n "\ek$1\e\\"
 
             # Update window name in stumpwm if running screen in X11 and when
@@ -227,6 +261,9 @@ autoload -U compinit && compinit -d ~/.zsh/cache/zcompdump
 zstyle ':completion:*' use-cache on
 zstyle ':completion:*' cache-path ~/.zsh/cache
 
+# Complete arguments and fix spelling mistakes when possible.
+zstyle ':completion:*' completer _complete _match _correct _approximate
+
 # Make sure the list of possible completions is displayed after pressing <TAB>
 # the first time.
 setopt nolistambiguous
@@ -243,6 +280,11 @@ zstyle ':completion:*' list-colors ${(s.:.)LS_COLORS}
 # Make completion lists scrollable so "do you wish to see all n possibilities"
 # is no longer displayed.
 zstyle ':completion:*' list-prompt '%p'
+# Display group name (like 'external command', 'alias', etc.) when there are
+# multiple matches in bold.
+zstyle ':completion:*' format '    %B%d%b:'
+# Display different types of matches separately.
+zstyle ':completion:*' group-name ''
 
 # Ignore completion functions.
 zstyle ':completion:*:functions' ignored-patterns '_*'
@@ -261,12 +303,17 @@ zstyle ':completion:*:(hg|git)*:*' ignore-line yes
 # Make sure aliases are expanded when using sudo.
 alias sudo='sudo '
 
+# Redirect stderr to stdout.
+alias -g E='2>&1'
+
 # Simplify calls to less, automatically redirects all output.
-alias -g L='2>&1 | less'
+alias -g L='E | less'
 # Simplify calls to colordiff, output is also piped through less.
-alias -g D='2>&1 | colordiff L'
+alias -g D='E | colordiff L'
 # Simplify calls to grep.
 alias -g G='| grep'
+# Simplify calls to sort.
+alias -g S='| sort'
 
 # Automatically use unified diffs.
 alias diff='diff -u'
@@ -357,7 +404,10 @@ exec 2>>(while read line; do
 # RUN COMMANDS
 
 # If not already in screen reattach to a running session or create a new one.
-if [[ $TERM != 'screen' && $TERM != 'dumb' ]]; then
+#
+# 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
     # Create a new session if none is running.
     if [[ $(screen -list | grep "Detached" | wc -l) == 0 ]]; then
         screen