From aae8892a4ab2b2a634a773b8216a5d5f5cccbebe Mon Sep 17 00:00:00 2001
From: Tim Van Baak <tim.vanbaak@gmail.com>
Date: Thu, 11 Jul 2024 06:40:31 -0700
Subject: [PATCH] Add bundlers.list

---
 default.nix | 31 +++++++++++++++++++------------
 flake.nix   |  1 +
 2 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/default.nix b/default.nix
index f137900..ba24632 100644
--- a/default.nix
+++ b/default.nix
@@ -1,7 +1,4 @@
-{
-  pkgs,
-  ...
-}:
+{ pkgs, ... }:
 let
   inherit (builtins)
     genericClosure
@@ -14,6 +11,7 @@ let
     concatLines
     concatLists
     concatMap
+    concatStringsSep
     filter
     isDerivation
     isList
@@ -45,14 +43,8 @@ rec {
       startSet = map wrap (drvOutputs drv);
       operator = obj: map wrap (concatLists (drvDeps obj.drv.drvAttrs));
     });
-  drvMaintainers =
-    drv:
-    if !hasAttr "meta" drv then
-      [ ]
-    else if !hasAttr "maintainers" drv.meta then
-      [ ]
-    else
-      drv.meta.maintainers;
+  maintainable = drv: hasAttr "meta" drv && hasAttr "maintainers" drv.meta;
+  drvMaintainers = drv: if maintainable drv then drv.meta.maintainers else [ ];
   nobodyMaintains =
     drv: hasAttr "meta" drv && hasAttr "maintainers" drv.meta && (length drv.meta.maintainers) == 0;
   stringJoin = objToString: objs: writeText "txt" (concatLines (map objToString objs));
@@ -82,4 +74,19 @@ rec {
         | ${pkgs.unixtools.column}/bin/column -t \
         > $out
     '';
+
+  listMaintainers =
+    drv:
+    let
+      closure = drvClosure drv;
+      maintainableDrvs = filter maintainable closure;
+      maintainersToString =
+        maintainers: concatStringsSep "," (map (main: toString main.github) maintainers);
+      drvToString = drv: "${drv.name} ${maintainersToString (drvMaintainers drv)}";
+    in
+    runCommandLocal "maintainers.txt" { } ''
+      <${stringJoin drvToString maintainableDrvs} sort -u \
+        | ${pkgs.unixtools.column}/bin/column -t \
+        > $out
+    '';
 }
diff --git a/flake.nix b/flake.nix
index 3c961d1..8e8245f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -11,6 +11,7 @@
         default = adopt;
         maintainers = lib.allMaintainers;
         adopt = lib.noMaintainers;
+        list = lib.listMaintainers;
       };
 
       formatter."x86_64-linux" = pkgs.nixfmt-rfc-style;