introduce a rudimentary (working) form of the topological sort principle.

We can now start SSH with optional syslogging support. Also, if a program
is not already present in the /etc/rc.d "profile" (actually, not it has become
a collection of profiles) it will be automatically added.

This sounds hackish, and it probably is, but also, it might be the best
workable solution for now...

svn path=/nixpkgs/trunk/; revision=5044

pkgs/servers/server-scripts/generic/builder.sh

@@ -2,4 +2,10 @@ source $stdenv/setup
 
 ensureDir $out
 
-cp $functions $out/$nicename
+sed -e "s^@bash\@^$bash^g" \
+    -e "s^@sshd\@^$ssh^g" \
+    -e "s^@initscripts\@^$initscripts^g" \
+    -e "s^@coreutils\@^$coreutils^g" \
+    -e "s^@nixpkgs\@^$nixpkgs^g" \
+    -e "s^@nix\@^$nix^g" \
+    < $functions > $out/$nicename

pkgs/servers/server-scripts/generic/default.nix

@@ -1,4 +1,4 @@
-{stdenv}:
+{stdenv, bash, nix}:
 
 stdenv.mkDerivation {
   name = "generic-server-script-0.0.1";
@@ -6,4 +6,6 @@ stdenv.mkDerivation {
   nicename = "functions";
   builder = ./builder.sh ;
   functions = [./functions];
+  nixpkgs = "/nixpkgs/trunk/pkgs";
+  inherit bash nix;
 }

pkgs/servers/server-scripts/generic/functions

@@ -7,12 +7,18 @@
 
 STATEDIR=/var/run/nix-services
 RCDIR=/etc/rc.d/
+NIXPKGS=@nixpkgs@
 
 ## resolve $deps to real start/stop scripts first
 
 start_deps() {
 	for i in $deps; do
-		$i start
+		name=`$i/control name`
+		if ! test -a $RCDIR/$name; then
+			echo "blaat"
+		fi
+
+		$i/control start
 		RETVAL=$?
 		if test $RETVAL != 0; then
 			exit $RETVAL	
@@ -23,7 +29,16 @@ start_deps() {
 start_softdeps() {
 	for i in $softdeps; do
 		echo $i
-		$i start
+
+		name=`$i/control name`
+		if ! test -a "$RCDIR/$name"; then
+			echo $RCDIR/$name $i
+			@nix@/bin/nix-env -p $RCDIR/$name -i $i
+		fi
+
+		$i/control start
+
+		#$i start
 		RETVAL=$?
 		if test $RETVAL != 0; then
 			continue
@@ -34,7 +49,7 @@ start_softdeps() {
 start() {
 	# are we already running?
 	# if so, exit with code 0
-	if test -a $STATDIR/$prog; then
+	if test -a $STATEDIR/$prog; then
 		exit 0
 	fi
 	# if not, continue