concat: RIP

krebs/5pkgs/writers.nix

@@ -1,32 +1,6 @@
 pkgs: oldpkgs:
 with import <stockholm/lib>;
   {
-
-    # Combine a list of derivations using symlinks.  Paths in later derivations
-    # take precedence over earlier ones.
-    #
-    # Example: create wrapper but retain all other files (man pages etc.)
-    #
-    # {
-    #   nixpkgs.config.packageOverrides = super: {
-    #     hello = pkgs.concat "hello" [
-    #       super.hello
-    #       (pkgs.writeDashBin "hello" ''
-    #         echo OMG
-    #         echo exec ${super.hello}/bin/hello "$@"
-    #       '')
-    #     ];
-    #   };
-    # }
-    #
-    concat = name: xs: pkgs.runCommand name {} ''
-      mkdir $out
-      ${flip concatMapStrings xs (x: ''
-        cp --remove-destination -vrs ${x}/* $out
-        find $out -type d -exec chmod -v u+rwx {} +
-      '')}
-    '';
-
     execve = name: { filename, argv ? null, envp ? {}, destination ? "" }: let
     in pkgs.writeC name { inherit destination; } /* c */ ''
       #include <unistd.h>

lass/1systems/iso.nix

@@ -17,7 +17,10 @@ with import <stockholm/lib>;
       # my life sucks
       nixpkgs.config.packageOverrides = super: {
         irc-announce = super.callPackage <stockholm/krebs/5pkgs/simple/irc-announce> {
-          pkgs = pkgs // { coreutils = pkgs.concat "coreutils-hack" [
+          pkgs = pkgs // {
+            coreutils = pkgs.symlinkJoin {
+              name = "coreutils-hack";
+              paths = [
                 pkgs.coreutils
                 (pkgs.writeDashBin "tee" ''
                   if test "$1" = /dev/stderr; then
@@ -29,7 +32,9 @@ with import <stockholm/lib>;
                     ${super.coreutils}/bin/tee "$@"
                   fi
                 '')
-          ];};
+              ];
+            };
+          };
         };
       };
       boot.kernelParams = [ "copytoram" ];

lass/2configs/htop.nix

@@ -5,7 +5,9 @@ with import <stockholm/lib>;
 {
   security.hideProcessInformation = true;
   nixpkgs.config.packageOverrides = super: {
-    htop = pkgs.concat "htop" [
+    htop = pkgs.symlinkJoin {
+      name = "htop";
+      paths = [
         super.htop
         (pkgs.writeDashBin "htop" ''
           export HTOPRC=${pkgs.writeText "htoprc" ''
@@ -38,4 +40,5 @@ with import <stockholm/lib>;
         '')
       ];
     };
+  };
 }

lass/2configs/mail.nix

@@ -113,12 +113,15 @@ let
     macro index ~ ,@( 'Toggle sidebar'      # toggle the sidebar
   '';
 
-  mutt = pkgs.concat "mutt" [
+  mutt = pkgs.symlinkJoin {
+    name = "mutt";
+    paths = [
       pkgs.neomutt
       (pkgs.writeDashBin "mutt" ''
         exec ${pkgs.neomutt}/bin/mutt -F ${muttrc} $@
       '')
     ];
+  };
 
 in {
   environment.systemPackages = [

lass/2configs/mc.nix

@@ -322,7 +322,9 @@ let
 
 in {
   environment.systemPackages = [
-    (pkgs.concat "mc" [
+    (pkgs.symlinkJoin {
+      name = "mc";
+      paths = [
         pkgs.mc
         (pkgs.writeDashBin "mc" ''
           export MC_DATADIR=${pkgs.writeOut "mc-ext" {
@@ -332,7 +334,8 @@ in {
           export TERM=xterm-256color
           exec ${pkgs.mc}/bin/mc -S xoria256 "$@"
         '')
-    ])
+      ];
+    })
   ];
 }
 

lass/2configs/mpv.nix

@@ -7,12 +7,15 @@ let
     delete
   ];
 
-  mpv = pkgs.concat "mpv" [
+  mpv = pkgs.symlinkJoin {
+    name = "mpv";
+    paths = [
       pkgs.mpv
       (pkgs.writeDashBin "mpv" ''
         exec ${pkgs.mpv}/bin/mpv --no-config --script=${scripts} "$@"
       '')
     ];
+  };
 
   moveToDir = key: dir: pkgs.writeText "move-with-${key}.lua" ''
     tmp_dir = "${dir}"

lass/2configs/vim.nix

@@ -207,7 +207,9 @@ let
     alldirs = attrValues dirs ++ map dirOf (attrValues files);
   in unique (sort lessThan alldirs);
 
-  vim = pkgs.concat "vim" [
+  vim = pkgs.symlinkJoin {
+    name = "vim";
+    paths = [
       pkgs.vim
       (pkgs.writeDashBin "vim" ''
         set -efu
@@ -215,6 +217,7 @@ let
         exec ${pkgs.vim}/bin/vim "$@"
       '')
     ];
+  };
 
   hs.vim = pkgs.writeText "hs.vim" ''
     syn region String start=+\[[[:alnum:]]*|+ end=+|]+

makefu/1systems/iso.nix

@@ -32,7 +32,10 @@ with import <stockholm/lib>;
   # hack `tee` behavior
   nixpkgs.config.packageOverrides = super: {
     irc-announce = super.callPackage <stockholm/krebs/5pkgs/simple/irc-announce> {
-      pkgs = pkgs // { coreutils = pkgs.concat "coreutils-hack" [
+      pkgs = pkgs // {
+        coreutils = pkgs.symlinkJoin {
+          name =  "coreutils-hack";
+          paths = [
             pkgs.coreutils
             (pkgs.writeDashBin "tee" ''
               if test "$1" = /dev/stderr; then
@@ -44,7 +47,9 @@ with import <stockholm/lib>;
                 ${super.coreutils}/bin/tee "$@"
               fi
             '')
-      ];};
+          ];
+        };
+      };
     };
   };
 }

tv/2configs/htop.nix

@@ -4,7 +4,9 @@ with import <stockholm/lib>;
 
 {
   nixpkgs.config.packageOverrides = super: {
-    htop = pkgs.concat "htop" [
+    htop = pkgs.symlinkJoin {
+      name = "htop";
+      paths = [
         super.htop
         (pkgs.writeDashBin "htop" ''
           export HTOPRC=${pkgs.writeText "htoprc" ''
@@ -37,4 +39,5 @@ with import <stockholm/lib>;
         '')
       ];
     };
+  };
 }

tv/2configs/vim.nix

@@ -297,7 +297,9 @@ let {
     alldirs = attrValues dirs ++ map dirOf (attrValues files);
   in unique (sort lessThan alldirs);
 
-  vim-wrapper = pkgs.concat "vim" [
+  vim-wrapper = pkgs.symlinkJoin {
+    name = "vim";
+    paths = [
       pkgs.vim_configurable
       (pkgs.writeDashBin "vim" ''
         set -efu
@@ -309,6 +311,7 @@ let {
         exec ${pkgs.vim_configurable}/bin/vim "$@"
       '')
     ];
+  };
 
   vimrc = pkgs.writeText "vimrc" ''
     set nocompatible