Generalize commands across OSes

- support Arch, Debian and Mac OS (with homebrew) with package shortcuts
- generalize sudo commands for root

dot-files/zshrc

@@ -79,39 +79,60 @@ alias ls="ls $LS_OPTS"
 export TREE_OPTS="-I '*.pyc' -Ch --filelimit 20"
 alias tree="tree $TREE_OPTS"
 
-# installation and compilation
-alias cmi="sudo date && ./configure $CONF && make && make test && sudo make install && make clean && date"
+#### OS- or distribution-dependent...
+ARCH=[ -e /etc/arch-release ]
+DEBIAN=[ -e /etc/debian_version ]
+MAC=[ "$(uname)" -eq "Darwin" ]
+
+#### User-dependent
+if [ "$USER" -eq "root" ]; then
+    SUDO=''
+else
+    SUDO='sudo'
+fi
+
+
+alias cmi="$SUDO date && ./configure $CONF && make && make test && $SUDO make install && make clean && date"
+alias apres="$SUDO apache2ctl restart"
+
+if $ARCH; then
+    alias get="$SUDO pacman -S"
+    alias agu="$SUDO pacman -Syu"
+    alias acs="$SUDO pacman -Ss"
+fi
+if $DEBIAN; then
+    alias get="$SUDO apt-get install"
+    alias agu="$SUDO apt-get update; $SUDO apt-get upgrade; $SUDO apt-get dist-upgrade"
+    alias acs="apt-cache search"
+fi
+if $MAC; then
+    alias get="brew install"
+    alias agu="brew update && brew upgrade"
+    alias acs="brew search"
+fi
 
-# screen-related
-alias svim='screen vim'
-
-# frequent sudo tasks
-alias get='sudo apt-get install'
-alias apres='sudo apache2ctl restart'
-alias agu='sudo apt-get update; sudo apt-get upgrade; sudo apt-get dist-upgrade'
-alias acs='apt-cache search'
 ns () {
-    sudo vim /etc/apache2/sites-available/$1.terst.org +":0r /etc/apache2/sites-available/template" +":%s/DEFAULT/$1/g"
+    $SUDO vim /etc/apache2/sites-available/$1.terst.org +":0r /etc/apache2/sites-available/template" +":%s/DEFAULT/$1/g"
     if [ $? -eq 0 ]; then
-        sudo mkdir -p /workspace/sites/$1.terst.org/docroot
-        sudo ln -s /workspace/sites/$1.terst.org /var/www/htdocs/$1.terst.org
-        sudo a2ensite $1.terst.org
-        sudo apache2ctl restart
+        $SUDO mkdir -p /workspace/sites/$1.terst.org/docroot
+        $SUDO ln -s /workspace/sites/$1.terst.org /var/www/htdocs/$1.terst.org
+        $SUDO a2ensite $1.terst.org
+        $SUDO apache2ctl restart
         echo "http://$1.terst.org/ is active."
     else
         echo "cancelled...."
     fi
 }
 es () {
-    sudo vim /etc/apache2/sites-available/$1.terst.org && sudo apache2ctl restart
+    $SUDO vim /etc/apache2/sites-available/$1.terst.org && $SUDO apache2ctl restart
 }
 # xkcd.com/149
 mmas ()
 {
     echo "What? Make it yourself."
-    echo "-> sudo $(history|tail -1|sed "s/ [0-9][0-9][0-9][0-9][ *] //")"
+    echo "-> $SUDO $(history|tail -1|sed "s/ [0-9][0-9][0-9][0-9][ *] //")"
     echo "Ok."
-    sudo $(history|tail -1|sed "s/ [0-9][0-9][0-9][0-9][ *] //")
+    $SUDO $(history|tail -1|sed "s/ [0-9][0-9][0-9][0-9][ *] //")
 }
 
 # update this config and reload
@@ -132,14 +153,6 @@ tlog ()
         tail -fn0 /var/log/apache2/{$1.access,error,rewrite}.log
     fi
 }
-
-
-sd ()
-{
-    svn diff --diff-cmd=colordiff $@ | more
-}
-alias zf=/workspace/runtimes/ZendFramework-1.11.10/bin/zf.sh
-alias sc="sudo -u www-data /workspace/sites/s.terst.org/app/console"
 cdls () {
     \cd $1
     ls -t --color=always | head -3 | sed 's/^/\t/'