zshrc: add runit sysv emulation support to Start/Stop/Restart/...

[grml-etc-core.git] / etc / zsh / zshrc

diff --git a/etc/zsh/zshrc b/etc/zsh/zshrc
index b414c93..3554d99 100644 (file)
--- a/etc/zsh/zshrc
+++ b/etc/zsh/zshrc
@@ -258,6 +258,29 @@ salias() {
     return 0
 }
 
+# a "print -l ${(u)foo}"-workaround for pre-4.2.0 shells
+# usage: uprint foo
+#   Where foo is the *name* of the parameter you want printed.
+#   Note that foo is no typo; $foo would be wrong here!
+if ! is42 ; then
+    uprint () {
+        local -a u
+        local w
+        local parameter=${1}
+
+        if [[ -z ${parameter} ]] ; then
+            printf 'usage: uprint <parameter>\n'
+            return 1
+        fi
+
+        for w in ${(P)parameter} ; do
+            [[ -z ${(M)u:#${w}} ]] && u=( ${u} ${w} )
+        done
+
+        builtin print -l ${u}
+    }
+fi
+
 # Check if we can read given files and source those we can.
 xsource() {
     if (( ${#argv} < 1 )) ; then
@@ -931,21 +954,21 @@ isgrmlcd && SAVEHIST=1000 || SAVEHIST=10000 # useful for setopt append_history
 
 # dirstack handling {{{
 
-# TODO: the is42 tests are in place, because (u) requires at least 4.2.0
-#       of zsh. We also disable loading potentielly old .zdir files when
-#       starting a pre-4.2.0 zsh.
-#       Implementing a workaround-(u) for older shells is the obvious
-#       solution here, if we want this for all supported shells.
+DIRSTACKSIZE=${DIRSTACKSIZE:-20}
+DIRSTACKFILE=${DIRSTACKFILE:-${HOME}/.zdirs}
 
-DIRSTACKSIZE=20
-if is42 && [[ -f ~/.zdirs ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
-    dirstack=( ${(f)"$(< ~/.zdirs)"} )
+if [[ -f ${DIRSTACKFILE} ]] && [[ ${#dirstack[*]} -eq 0 ]] ; then
+    dirstack=( ${(f)"$(< $DIRSTACKFILE)"} )
     # "cd -" won't work after login by just setting $OLDPWD, so
     [[ -d $dirstack[0] ]] && cd $dirstack[0] && cd $OLDPWD
 fi
 
 chpwd() {
-    is42 && builtin print -l ${(u)dirstack} >! ~/.zdirs
+    if is42 ; then
+        builtin print -l ${(u)dirstack} >! ${DIRSTACKFILE}
+    else
+        uprint dirstack >! ${DIRSTACKFILE}
+    fi
 }
 
 # }}}
@@ -1804,9 +1827,33 @@ compdef _functions edfunc
 #m# f6 Stop() \kbd{/etc/init.d/\em{process}}\quad\kbd{stop}
 #m# f6 Reload() \kbd{/etc/init.d/\em{process}}\quad\kbd{reload}
 #m# f6 Force-Reload() \kbd{/etc/init.d/\em{process}}\quad\kbd{force-reload}
-if [[ -d /etc/init.d ]] ; then
+if [[ -d /etc/init.d || -d /etc/service ]] ; then
+    __start_stop() {
+        local action_="${1:l}"  # e.g Start/Stop/Restart
+        local service_="$2"
+        local param_="$3"
+
+        local service_target_="$(readlink /etc/init.d/$service_)"
+        if [[ $service_target_ == "/usr/bin/sv" ]]; then
+            # runit
+            case "${action_}" in
+                start) if [[ ! -e /etc/service/$service_ ]]; then
+                           $SUDO ln -s "/etc/sv/$service_" "/etc/service/"
+                       else
+                           $SUDO "/etc/init.d/$service_" "${action_}" "$param_"
+                       fi ;;
+                # there is no reload in runits sysv emulation
+                reload) $SUDO "/etc/init.d/$service_" "force-reload" "$param_" ;;
+                *) $SUDO "/etc/init.d/$service_" "${action_}" "$param_" ;;
+            esac
+        else
+            # sysvinit
+            $SUDO "/etc/init.d/$service_" "${action_}" "$param_"
+        fi
+    }
+
     for i in Start Restart Stop Force-Reload Reload ; do
-        eval "$i() { $SUDO /etc/init.d/\$1 ${i:l} \$2 ; }"
+        eval "$i() { __start_stop $i \"\$1\" \"\$2\" ; }"
     done
 fi