* Improved Nix. Resources (package descriptors and other source

  files) are now referenced using their cryptographic hashes.  

  This ensures that if two package descriptors have the same contents,
  then they describe the same package.  This property is not as
  trivial as it sounds: generally import relations cause this property
  not to hold w.r.t. temporality.  But since imports also use hashes
  to reference other packages, equality follows by induction.

2 files changed, 15 insertions, 17 deletions

diff --git a/sys/bootstrap b/sys/bootstrap
index e2265c1dcff0..f6aa16c8633e 100755
--- a/sys/bootstrap
+++ b/sys/bootstrap
@@ -26,7 +26,7 @@ mkdir -m 1777 $target/tmp
 pkgdb=$target/pkg/sys/var/pkginfo
 
 # Copy some programs and its libraries.
-utils="/usr/bin/vi /bin/sh /bin/mount /bin/umount /bin/ls /bin/ln /bin/cp /bin/mv /bin/rm /bin/cat /bin/df /bin/pwd /usr/bin/ld /usr/bin/as /bin/sed /bin/chmod /bin/chown /usr/bin/expr /bin/mkdir /bin/rmdir /usr/bin/sort /usr/bin/uniq /bin/uname /usr/bin/grep /bin/sleep /usr/bin/rsync /usr/bin/make /usr/bin/cmp /bin/date /usr/bin/tr /usr/bin/ar /usr/bin/ranlib /usr/bin/basename /usr/bin/less ../src/nix"
+utils="/usr/bin/vi /bin/sh /bin/mount /bin/umount /bin/ls /bin/ln /bin/cp /bin/mv /bin/rm /bin/cat /bin/df /bin/pwd /usr/bin/ld /usr/bin/as /bin/sed /bin/chmod /bin/chown /usr/bin/expr /bin/mkdir /bin/rmdir /usr/bin/sort /usr/bin/uniq /bin/uname /usr/bin/grep /bin/sleep /bin/gzip /usr/bin/make /usr/bin/cmp /bin/date /usr/bin/tr /usr/bin/ar /usr/bin/ranlib /usr/bin/basename /usr/bin/less /usr/bin/md5sum /bin/tar ../src/nix"
 bootlib=/pkg/prog-bootstrap/lib
 bootbin=/pkg/prog-bootstrap/bin
 mkdir -p $target/$bootlib
@@ -36,27 +36,27 @@ libs=`ldd $utils | awk '{ print $3 }' | sort | uniq`
 echo $libs
 cp -p $libs $target/$bootlib
 for i in libc.so.6 libdl.so.2 libpthread.so.0 librt.so.1 libresolv.so.2 ld-linux.so.2; do rm $target/$bootlib/$i; done
-../src/nix -d $pkgdb register-installed-pkg prog-bootstrap /pkg/prog-bootstrap
+../src/nix -d $pkgdb regpkg 5703121fe19cbeeaee7edd659cf4a25b /pkg/prog-bootstrap
 
 mv $target/$bootbin/nix $target/pkg/sys/bin
-../src/nix -d $pkgdb register-installed-pkg sys /pkg/sys
+../src/nix -d $pkgdb regpkg 36bcbb801f5052739af8220c6ea51434 /pkg/sys
 
 # Copy the bootstrap gcc.
 echo Copying gcc...
 rsync -a ../bootstrap/gcc/inst/pkg $target
-../src/nix -d $pkgdb register-installed-pkg gcc-bootstrap /pkg/gcc-bootstrap
+../src/nix -d $pkgdb regpkg 02212b3dc4e50349376975367d433929 /pkg/gcc-bootstrap
 
 # Copy the bootstrap glibc.
 echo Copying glibc...
 glibcdir=/pkg/glibc-bootstrap
 rsync -a ../bootstrap/glibc/inst/pkg $target
-../src/nix -d $pkgdb register-installed-pkg glibc-bootstrap $glibcdir
+../src/nix -d $pkgdb regpkg c0ce03ee0bab298babbe7e3b6159d36c $glibcdir
 
 # Copy the bootstrap kernel header files.
 echo Copying kernel headers...
 kerneldir=/pkg/kernel-bootstrap
 rsync -a ../bootstrap/kernel/inst/pkg $target
-../src/nix -d $pkgdb register-installed-pkg kernel-bootstrap $kerneldir
+../src/nix -d $pkgdb regpkg 3dc8333a2c2b4d627b892755417acf89 $kerneldir
 
 # Compatibility.
 rm -rf $target/lib
@@ -75,7 +75,7 @@ $target/$glibcdir/sbin/ldconfig -r $target
 
 # Source repository.
 rm -f $target/src
-ln -sf /mnt/host/`pwd`/../src $target/src
+ln -sf /mnt/host/`pwd`/../pkg $target/src
 
 # Copy boot script.
 cp -p ./start $target/pkg/sys/bin
diff --git a/sys/start b/sys/start
index f822b2fa7e13..b36cde297436 100755
--- a/sys/start
+++ b/sys/start
@@ -4,7 +4,7 @@
 export PATH=/pkg/sys/bin
 
 # Add in the utilities needed for booting.
-export PATH=$PATH:`nix get-pkg prog-bootstrap`/bin
+export PATH=$PATH:`nix getpkg 5703121fe19cbeeaee7edd659cf4a25b`/bin
 
 echo
 echo Starting up...
@@ -14,17 +14,15 @@ mount -n -o remount,rw /dev/root /
 mount -n -t proc none /proc
 mount -n -t hostfs none /mnt/host 
 
-echo Registering available src packages...
-( cd /src
-  for i in *; do
-    if test -d $i; then
-      echo "  $i"
-      nix register-pkg $i /src/$i
-    fi
-  done
+echo Registering available sources...
+( if cd /src; then
+    for i in *; do
+      nix reg $i
+    done
+  fi
 )
 
-export PATH=`nix get-pkg coreutils-4.5.7`/bin:$PATH
+export PATH=`nix getpkg coreutils-4.5.7`/bin:$PATH
 
 echo
 echo "=== starting interactive shell ==="