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-rw-r--r--corepkgs/fetchurl.nix8
1 files changed, 6 insertions, 2 deletions
diff --git a/corepkgs/fetchurl.nix b/corepkgs/fetchurl.nix
index 0ce1bab112f3..a84777f57448 100644
--- a/corepkgs/fetchurl.nix
+++ b/corepkgs/fetchurl.nix
@@ -1,10 +1,14 @@
 { system ? "" # obsolete
 , url
+, hash ? "" # an SRI ash
+
+# Legacy hash specification
 , md5 ? "", sha1 ? "", sha256 ? "", sha512 ? ""
 , outputHash ?
-    if sha512 != "" then sha512 else if sha1 != "" then sha1 else if md5 != "" then md5 else sha256
+    if hash != "" then hash else if sha512 != "" then sha512 else if sha1 != "" then sha1 else if md5 != "" then md5 else sha256
 , outputHashAlgo ?
-    if sha512 != "" then "sha512" else if sha1 != "" then "sha1" else if md5 != "" then "md5" else "sha256"
+    if hash != "" then "" else if sha512 != "" then "sha512" else if sha1 != "" then "sha1" else if md5 != "" then "md5" else "sha256"
+
 , executable ? false
 , unpack ? false
 , name ? baseNameOf (toString url)