* Refactoring: Get rid of a few subdirectories in corepkgs/, and some

other simplifications.
* Use <nix/...> to locate the corepkgs.  This allows them to be
  overriden through $NIX_PATH.
* Use bash's pipefail option in the NAR builder so that we don't need
  to create a temporary file.

tests/common.sh.in

@@ -9,7 +9,6 @@ if ! NIX_STORE_DIR=$(readlink -f $TEST_ROOT/store 2> /dev/null); then
     export NIX_IGNORE_SYMLINK_STORE=1
     NIX_STORE_DIR=$TEST_ROOT/store
 fi
-export NIX_DATA_DIR=$TEST_ROOT/data
 export NIX_LOCALSTATE_DIR=$TEST_ROOT/var
 export NIX_LOG_DIR=$TEST_ROOT/var/log/nix
 export NIX_STATE_DIR=$TEST_ROOT/var/nix
@@ -19,15 +18,11 @@ export NIX_BIN_DIR=$TEST_ROOT/bin
 export NIX_LIBEXEC_DIR=$TEST_ROOT/bin
 export NIX_MANIFESTS_DIR=$TEST_ROOT/var/nix/manifests
 export NIX_ROOT_FINDER=
+export NIX_PATH=nix=$TOP/corepkgs
 export SHARED=$TEST_ROOT/shared
 
 export PATH=$NIX_BIN_DIR:$TOP/scripts:$PATH
 
-export REAL_BIN_DIR=@bindir@
-export REAL_LIBEXEC_DIR=@libexecdir@
-export REAL_LOCALSTATE_DIR=@localstatedir@
-export REAL_DATA_DIR=@datadir@
-export REAL_STORE_DIR=@storedir@
 export NIX_BUILD_HOOK=
 export PERL=perl
 export PERL5LIB=$TOP/perl/lib:$PERL5LIB

tests/init.sh

@@ -10,7 +10,6 @@ fi
 mkdir "$TEST_ROOT"
 
 mkdir "$NIX_STORE_DIR"
-mkdir "$NIX_DATA_DIR"
 mkdir "$NIX_LOCALSTATE_DIR"
 mkdir -p "$NIX_LOG_DIR"/drvs
 mkdir "$NIX_STATE_DIR"
@@ -39,29 +38,6 @@ env-keep-derivations = false
 fsync-metadata = false
 EOF
 
-mkdir $NIX_DATA_DIR/nix
-cp -pr $TOP/corepkgs $NIX_DATA_DIR/nix/
-# Bah, scripts have the prefix hard-coded.  This is really messy stuff
-# (and likely to fail).
-for i in \
-    $NIX_DATA_DIR/nix/corepkgs/nar/nar.sh \
-    ; do
-    sed < $i > $i.tmp \
-        -e "s^$REAL_BIN_DIR/nix-store^$NIX_BIN_DIR/nix-store^" \
-        -e "s^$REAL_BIN_DIR/nix-hash^$NIX_BIN_DIR/nix-hash^" \
-        -e "s^$REAL_LIBEXEC_DIR^$NIX_LIBEXEC_DIR^" \
-        -e "s^$REAL_LOCALSTATE_DIR^$NIX_LOCALSTATE_DIR^" \
-        -e "s^$REAL_DATA_DIR^$NIX_DATA_DIR^" \
-        -e "s^$REAL_STORE_DIR\([^/]\)^$NIX_STORE_DIR\1^"
-    mv $i.tmp $i
-    chmod +x $i
-done
-
-# Another ugly hack.
-sed "s|^$|PATH='$PATH'|" < $NIX_DATA_DIR/nix/corepkgs/nar/nar.sh > tmp
-chmod +x tmp
-mv tmp $NIX_DATA_DIR/nix/corepkgs/nar/nar.sh
-
 # An uberhack for Mac OS X 10.5: download-using-manifests uses Perl,
 # and Perl links against Darwin's libutil.dylib (in /usr/lib), but
 # when running "make check", the libtool wrapper script around the Nix

tests/lang.sh

@@ -40,7 +40,7 @@ for i in lang/eval-okay-*.nix; do
         if test -e lang/$i.flags; then
             flags=$(cat lang/$i.flags)
         fi
-        if ! NIX_PATH=lang/dir3:lang/dir4 nix-instantiate $flags --eval-only --strict lang/$i.nix > lang/$i.out; then
+        if ! NIX_PATH=lang/dir3:lang/dir4:$NIX_PATH nix-instantiate $flags --eval-only --strict lang/$i.nix > lang/$i.out; then
             echo "FAIL: $i should evaluate"
             fail=1
         elif ! diff lang/$i.out lang/$i.exp; then

tests/lang/eval-okay-search-path.nix

@@ -1,3 +1,3 @@
-assert builtins.pathExists <nix/buildenv>;
+assert builtins.pathExists <nix/buildenv.nix>;
 
 import <a.nix> + import <b.nix> + import <c.nix> + import <dir5/c.nix>

tests/user-envs.sh

@@ -36,7 +36,7 @@ nix-env -p $profiles/test -q '*' | grep -q foo-2.0pre1
 test "$($profiles/test/bin/foo)" = "foo-2.0pre1"
 
 # Upgrade "foo": should install foo-2.0.
-NIX_PATH=nixpkgs=./user-envs.nix nix-env -p $profiles/test -f '<nixpkgs>' -u foo
+NIX_PATH=nixpkgs=./user-envs.nix:$NIX_PATH nix-env -p $profiles/test -f '<nixpkgs>' -u foo
 
 # Query installed: should contain foo-2.0 now.
 test "$(nix-env -p $profiles/test -q '*' | wc -l)" -eq 1