emptyFile, emptyDirectory: init

1 files changed, 16 insertions, 0 deletions

diff --git a/pkgs/build-support/trivial-builders.nix b/pkgs/build-support/trivial-builders.nix
index 0bf67d21b3be6..219f808403ccd 100644
--- a/pkgs/build-support/trivial-builders.nix
+++ b/pkgs/build-support/trivial-builders.nix
@@ -571,6 +571,22 @@ rec {
       installPhase = "cp -R ./ $out";
     };
 
+  /* An immutable file in the store with a length of 0 bytes. */
+  emptyFile = runCommand "empty-file" {
+    outputHashAlgo = "sha256";
+    outputHashMode = "recursive";
+    outputHash = "0ip26j2h11n1kgkz36rl4akv694yz65hr72q4kv4b3lxcbi65b3p";
+    preferLocalBuild = true;
+  } "touch $out";
+
+  /* An immutable empty directory in the store. */
+  emptyDirectory = runCommand "empty-directory" {
+    outputHashAlgo = "sha256";
+    outputHashMode = "recursive";
+    outputHash = "0sjjj9z1dhilhpc8pq4154czrb79z9cm044jvn75kxcjv6v5l2m5";
+    preferLocalBuild = true;
+  } "mkdir $out";
+
   /* Checks the command output contains the specified version
    *
    * Although simplistic, this test assures that the main program