Make config.nix shims

As requested in https://github.com/NixOS/nix/pull/11792#discussion_r1827034428

.gitignore

@@ -102,9 +102,6 @@ perl/Makefile.config
 /tests/functional/restricted-innocent
 /tests/functional/shell
 /tests/functional/shell.drv
-/tests/functional/config.nix
-/tests/functional/ca/config.nix
-/tests/functional/dyn-drv/config.nix
 /tests/functional/repl-result-out
 /tests/functional/debugger-test-out
 /tests/functional/test-libstoreconsumer/test-libstoreconsumer

tests/functional/build-hook-ca-fixed.nix

@@ -1,6 +1,6 @@
 { busybox }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
 

tests/functional/build-hook.nix

@@ -1,6 +1,6 @@
 { busybox, contentAddressed ? false }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
 

tests/functional/ca/config.nix

@@ -0,0 +1,2 @@
+# Shim to get generated file
+import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/ca/config.nix"

tests/functional/ca/content-addressed.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/ca/config.nix";
+with import ./config.nix;
 
 let mkCADerivation = args: mkDerivation ({
     __contentAddressed = true;

tests/functional/ca/nix-run.sh

@@ -6,7 +6,4 @@ flakeDir="$TEST_HOME/flake"
 mkdir -p "${flakeDir}"
 cp flake.nix "${_NIX_TEST_BUILD_DIR}/ca/config.nix" content-addressed.nix "${flakeDir}"
 
-# `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-removeBuildDirRef "$flakeDir"/*.nix
-
 nix run --no-write-lock-file "path:${flakeDir}#runnable"

tests/functional/ca/nondeterministic.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/ca/config.nix";
+with import ./config.nix;
 
 let mkCADerivation = args: mkDerivation ({
     __contentAddressed = true;

tests/functional/ca/racy.nix

@@ -2,7 +2,7 @@
 # build it at once.
 
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/ca/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "simple";

tests/functional/check-refs.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/check-reqs.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
   dep1 = mkDerivation {

tests/functional/check.nix

@@ -1,6 +1,6 @@
 {checkBuildId ? 0}:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 {
   nondeterministic = mkDerivation {

tests/functional/chroot-store.sh

@@ -39,9 +39,6 @@ EOF
 
     cp simple.nix shell.nix simple.builder.sh "${config_nix}" "$flakeDir/"
 
-    # `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-    removeBuildDirRef "$flakeDir"/*.nix
-
     TODO_NixOS
 
     outPath=$(nix build --print-out-paths --no-link --sandbox-paths '/nix? /bin? /lib? /lib64? /usr?' --store "$TEST_ROOT/x" path:"$flakeDir")

tests/functional/common/functions.sh

@@ -343,15 +343,6 @@ count() {
   echo $#
 }
 
-# Sometimes, e.g. due to pure eval, restricted eval, or sandboxing, we
-# cannot look up `config.nix` in the build dir, and have to instead get
-# it from the current directory. (In this case, the current directly
-# will be somewhere in `$TEST_ROOT`.)
-removeBuildDirRef() {
-  # shellcheck disable=SC2016 # The ${} in this is Nix, not shell
-  sed -i -e 's,"${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/[^ ]*config.nix",./config.nix,' "$@"
-}
-
 trap onError ERR
 
 fi # COMMON_FUNCTIONS_SH_SOURCED

tests/functional/config.nix

@@ -0,0 +1,2 @@
+# Shim to get generated file
+import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix"

tests/functional/dependencies.nix

@@ -1,5 +1,5 @@
 { hashInvalidator ? "" }:
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let {
 

tests/functional/dyn-drv/config.nix

@@ -0,0 +1,2 @@
+# Shim to get generated file
+import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/dyn-drv/config.nix"

tests/functional/dyn-drv/old-daemon-error-hack.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/dyn-drv/config.nix";
+with import ./config.nix;
 
 # A simple content-addressed derivation.
 # The derivation can be arbitrarily modified by passing a different `seed`,

tests/functional/dyn-drv/recursive-mod-json.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/dyn-drv/config.nix";
+with import ./config.nix;
 
 let innerName = "foo"; in
 

tests/functional/dyn-drv/text-hashed-output.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/dyn-drv/config.nix";
+with import ./config.nix;
 
 # A simple content-addressed derivation.
 # The derivation can be arbitrarily modified by passing a different `seed`,

tests/functional/export-graph.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/extra-sandbox-profile.nix

@@ -1,6 +1,6 @@
 { destFile, seed }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "simple";

tests/functional/failing.nix

@@ -1,5 +1,5 @@
 { busybox }:
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 let
 
   mkDerivation = args:

tests/functional/filter-source.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "filter";

tests/functional/fixed.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/flakes/bundle.sh

@@ -4,9 +4,6 @@ source common.sh
 
 cp ../simple.nix ../simple.builder.sh "${config_nix}" "$TEST_HOME"
 
-# `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-removeBuildDirRef "$TEST_HOME"/*.nix
-
 cd "$TEST_HOME"
 
 cat <<EOF > flake.nix

tests/functional/flakes/common.sh

@@ -35,9 +35,6 @@ writeSimpleFlake() {
 EOF
 
     cp ../simple.nix ../shell.nix ../simple.builder.sh "${config_nix}" "$flakeDir/"
-
-    # `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-    removeBuildDirRef "$flakeDir"/*.nix
 }
 
 createSimpleGitFlake() {

tests/functional/flakes/config.sh

@@ -3,7 +3,6 @@
 source common.sh
 
 cp ../simple.nix ../simple.builder.sh "${config_nix}" $TEST_HOME
-removeBuildDirRef "$TEST_HOME/simple.nix"
 
 cd $TEST_HOME
 

tests/functional/flakes/develop.sh

@@ -27,9 +27,6 @@ EOF
 mkdir -p "$TEST_HOME/nixpkgs"
 cp "${config_nix}" ../shell.nix "$TEST_HOME/nixpkgs"
 
-# `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-removeBuildDirRef "$TEST_HOME/nixpkgs"/*.nix
-
 cat <<EOF >"$TEST_HOME/nixpkgs/flake.nix"
 {
     outputs = {self}: {

tests/functional/flakes/run.sh

@@ -8,8 +8,6 @@ clearStore
 rm -rf $TEST_HOME/.cache $TEST_HOME/.config $TEST_HOME/.local
 
 cp ../shell-hello.nix "${config_nix}" $TEST_HOME
-# `config.nix` cannot be gotten via build dir / env var (runs afoul pure eval). Instead get from flake.
-removeBuildDirRef "$TEST_HOME"/*.nix
 cd $TEST_HOME
 
 cat <<EOF > flake.nix

tests/functional/fod-failing.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 rec {
   x1 = mkDerivation {
     name = "x1";

tests/functional/gc-concurrent.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 { lockFifo ? null }:
 

tests/functional/gc-runtime.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "gc-runtime";

tests/functional/hermetic.nix

@@ -5,7 +5,7 @@
 , withFinalRefs ? false
 }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
   contentAddressedByDefault = builtins.getEnv "NIX_TESTS_CA_BY_DEFAULT" == "1";

tests/functional/ifd.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 import (
   mkDerivation {
     name = "foo";

tests/functional/import-from-derivation.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
   bar = mkDerivation {

tests/functional/impure-derivations.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/impure-env.nix

@@ -1,6 +1,6 @@
 { var, value }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "test";

tests/functional/linux-sandbox-cert-test.nix

@@ -1,6 +1,6 @@
 { mode }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation (
   {

tests/functional/multiple-outputs.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/nar-access.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
     a = mkDerivation {

tests/functional/nix-build-examples.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
 

tests/functional/parallel.nix

@@ -1,6 +1,6 @@
 {sleepTime ? 3}:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
 

tests/functional/path.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "filter";

tests/functional/readfile-context.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
 

tests/functional/restricted.sh

@@ -12,10 +12,6 @@ mkdir -p "$TEST_ROOT/nix"
 cp ./simple.nix "$TEST_ROOT/nix"
 cp ./simple.builder.sh "$TEST_ROOT/nix"
 cp "${config_nix}" "$TEST_ROOT/nix"
-simple_nix="$TEST_ROOT/nix/simple.nix"
-# N.B. redefine
-config_nix="$TEST_ROOT/nix/config.nix"
-removeBuildDirRef "${simple_nix}"
 cd "$TEST_ROOT/nix"
 
 nix-instantiate --restrict-eval ./simple.nix -I src=.

tests/functional/search.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 {
   hello = mkDerivation rec {

tests/functional/secure-drv-outputs.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 {
 

tests/functional/shell-hello.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 rec {
   hello = mkDerivation {

tests/functional/shell.nix

@@ -1,6 +1,6 @@
 { inNixShell ? false, contentAddressed ? false, fooContents ? "foo" }:
 
-let cfg = import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix"; in
+let cfg = import ./config.nix; in
 with cfg;
 
 let

tests/functional/simple-failing.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "simple-failing";

tests/functional/simple.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 mkDerivation {
   name = "simple";

tests/functional/structured-attrs-shell.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 let
   dep = mkDerivation {
     name = "dep";

tests/functional/structured-attrs.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
 

tests/functional/symlink-derivation.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 let
   foo_in_store = builtins.toFile "foo" "foo";

tests/functional/timeout.nix

@@ -1,4 +1,4 @@
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 {
 

tests/functional/user-envs.nix

@@ -2,7 +2,7 @@
 { foo ? "foo"
 }:
 
-with import "${builtins.getEnv "_NIX_TEST_BUILD_DIR"}/config.nix";
+with import ./config.nix;
 
 assert foo == "foo";