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-rw-r--r--third_party/nix/tests/shell.nix56
1 files changed, 56 insertions, 0 deletions
diff --git a/third_party/nix/tests/shell.nix b/third_party/nix/tests/shell.nix
new file mode 100644
index 000000000000..eb39f9039a88
--- /dev/null
+++ b/third_party/nix/tests/shell.nix
@@ -0,0 +1,56 @@
+{ }:
+
+with import ./config.nix;
+
+let pkgs = rec {
+  setupSh = builtins.toFile "setup" ''
+    export VAR_FROM_STDENV_SETUP=foo
+    for pkg in $buildInputs; do
+      export PATH=$PATH:$pkg/bin
+    done
+  '';
+
+  stdenv = mkDerivation {
+    name = "stdenv";
+    buildCommand = ''
+      mkdir -p $out
+      ln -s ${setupSh} $out/setup
+    '';
+  };
+
+  shellDrv = mkDerivation {
+    name = "shellDrv";
+    builder = "/does/not/exist";
+    VAR_FROM_NIX = "bar";
+    inherit stdenv;
+  };
+
+  # Used by nix-shell -p
+  runCommand = name: args: buildCommand: mkDerivation (args // {
+    inherit name buildCommand stdenv;
+  });
+
+  foo = runCommand "foo" {} ''
+    mkdir -p $out/bin
+    echo 'echo foo' > $out/bin/foo
+    chmod a+rx $out/bin/foo
+    ln -s ${shell} $out/bin/bash
+  '';
+
+  bar = runCommand "bar" {} ''
+    mkdir -p $out/bin
+    echo 'echo bar' > $out/bin/bar
+    chmod a+rx $out/bin/bar
+  '';
+
+  bash = shell;
+
+  # ruby "interpreter" that outputs "$@"
+  ruby = runCommand "ruby" {} ''
+    mkdir -p $out/bin
+    echo 'printf -- "$*"' > $out/bin/ruby
+    chmod a+rx $out/bin/ruby
+  '';
+
+  inherit pkgs;
+}; in pkgs