diff options
| -rw-r--r-- | nix/readTree/default.nix | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/nix/readTree/default.nix b/nix/readTree/default.nix index 0c59c890d4fa..22815a44c4ee 100644 --- a/nix/readTree/default.nix +++ b/nix/readTree/default.nix @@ -58,6 +58,17 @@ let __readTreeChildren = builtins.attrNames children; }; + # Merge two attribute sets, but place attributes in `passthru` via + # `overrideAttrs` for derivation targets that support it. + merge = a: b: + if a ? overrideAttrs + then + a.overrideAttrs + (prev: { + passthru = (prev.passthru or { }) // b; + }) + else a // b; + # Import a file and enforce our calling convention importFile = args: scopedArgs: path: parts: filter: let @@ -122,7 +133,7 @@ let name = c; value = if isAttrs imported - then imported // marker childParts { } + then merge imported (marker childParts { }) else imported; }) nixFiles; @@ -137,7 +148,7 @@ let in if isAttrs nodeValue - then nodeValue // allChildren // (marker parts allChildren) + then merge nodeValue (allChildren // (marker parts allChildren)) else nodeValue; # Function which can be used to find all readTree targets within an |