Add quickShell to build devshells quickly

overlay.nix

@@ -7,33 +7,6 @@ let
   callPackage = final.callPackage;
 
   bscPkgs = {
-
-    # override stdenv to add a sentinel to know if a derivation comes
-    # from unfree sources.
-    stdenv = prev.stdenv // {
-      mkDerivation =
-        args:
-        let
-          originalDrv = prev.stdenv.mkDerivation args;
-          checkLicense = l: if builtins.isAttrs l then !(l.free or true) else false;
-
-          licenses = if builtins.isList args.meta.license then args.meta.license else [ args.meta.license ];
-
-          hasUnfreeLicense =
-            if args ? meta && args.meta ? license then builtins.any checkLicense licenses else false;
-        in
-        if hasUnfreeLicense then
-          builtins.traceVerbose "adding nix-support/private to ${originalDrv.name or originalDrv.pname}" (
-          originalDrv.overrideAttrs (old: {
-            postInstall = (old.postInstall or "") + ''
-              mkdir -p $out/nix-support
-              touch $out/nix-support/private
-            '';
-          }))
-        else
-          originalDrv;
-    };
-
     agenix = prev.callPackage ./pkgs/agenix/default.nix { };
     amd-uprof = prev.callPackage ./pkgs/amd-uprof/default.nix { };
     bench6 = callPackage ./pkgs/bench6/default.nix { };
@@ -46,6 +19,7 @@ let
     cudainfo = prev.callPackage ./pkgs/cudainfo/default.nix { };
     #extrae = callPackage ./pkgs/extrae/default.nix { }; # Broken and outdated
     gpi-2 = callPackage ./pkgs/gpi-2/default.nix { };
+    quickShell = import ./pkgs/quick-shell/default.nix { pkgs = final; };
     intelPackages_2023 = callPackage ./pkgs/intel-oneapi/2023.nix { };
     jemallocNanos6 = callPackage ./pkgs/nanos6/jemalloc.nix { };
     # FIXME: Extend this to all linuxPackages variants. Open problem, see:

pkgs/intel-oneapi/2023.nix

@@ -50,15 +50,11 @@ let
     ];
     phases = [ "installPhase" ];
     installPhase = ''
-      runHook preInstall
-
       awk -F': ' '\
         BEGIN   { print "[ {" } \
         NR>1 && /^Package: / { print "} {"; } \
         /: /    { printf "%s = \"%s\";\n", $1, $2 } \
         END     { print "} ]" }' $srcs > $out
-
-      runHook postInstall
     '';
   };
 
@@ -92,15 +88,11 @@ let
     nativeBuildInputs = [ dpkg ];
     phases = [ "installPhase" ];
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out
       for src in $srcs; do
         echo "unpacking $src"
         dpkg -x $src $out
       done
-
-      runHook postInstall
     '';
 
     inherit meta;
@@ -139,8 +131,6 @@ let
     phases = [ "installPhase" "fixupPhase" ];
     dontStrip = true;
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/{bin,etc,lib,include}
       mkdir -p $out/share/man
 
@@ -157,8 +147,6 @@ let
         # Broken due missing libze_loader.so.1
         rsync -a --exclude IMB-MPI1-GPU bin/ $out/bin/
       popd
-
-      runHook postInstall
     '';
     preFixup = ''
       for i in $out/bin/mpi* ; do
@@ -197,8 +185,6 @@ let
     autoPatchelfIgnoreMissingDeps = [ "libhwloc.so.5" ];
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/lib
 
       cd $src
@@ -207,8 +193,6 @@ let
         # Libraries
         rsync -a lib/intel64/gcc4.8/ $out/lib/
       popd
-
-      runHook postInstall
     '';
 
     inherit meta;
@@ -244,8 +228,6 @@ let
     autoPatchelfIgnoreMissingDeps = [ "libsycl.so.6" ];
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/{bin,lib,include}
       mkdir -p $out/share/man
 
@@ -270,8 +252,6 @@ let
           rsync -a compiler/include/ $out/include/
         popd
       popd
-
-      runHook postInstall
     '';
 
     inherit meta;
@@ -313,8 +293,6 @@ let
     dontStrip = true;
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/{bin,lib,include}
       mkdir -p $out/share/man
 
@@ -340,10 +318,7 @@ let
 
         # Fix lib_lin
         ln -s $out/lib $out/lib_lin
-
       popd
-
-      runHook postInstall
     '';
 
     inherit meta;
@@ -406,8 +381,6 @@ let
     dontStrip = true;
 
     installPhase = ''
-      runHook preInstall
-
       mkdir -p $out/{bin,lib}
       mkdir -p $out/share/man
 
@@ -435,8 +408,6 @@ let
         # Manuals
         rsync -a documentation/en/man/common/ $out/share/man/
       popd
-
-      runHook postInstall
     '';
 
     inherit meta;

pkgs/quick-shell/default.nix

@@ -0,0 +1,76 @@
+{ pkgs }:
+
+# This builds devshells using passthru to populate packages and inputsFrom
+# lazily.
+#
+# Packages prefixed with @ are added to inputsFrom and the rest are
+# added to packages. This makes it possible to obtain a devshell with combining
+# inputsFrom and packages from the comand line:
+#
+# $ nix develop .#quickShell.@nosv.clang-tools.ovni.@tampi
+#
+# is equivalent to:
+#
+#   with pkgs; mkShell {
+#     packages = [ clang-tools ovni ];
+#     inputsFrom = [ nosv tampi ];
+#   }
+#
+
+let
+  inherit (builtins) attrNames getAttr listToAttrs;
+  inherit (pkgs) lib;
+
+  # list of all packages' names
+  names = attrNames pkgs;
+
+  # generate a attributes containing the selected packages + all the available
+  # packages in names ("" -> packages and "@" -> inputsFrom)
+  go =
+    selected:
+    let
+      mkAttrs =
+        isInputs:
+        (map (
+          name:
+          let
+            pkg = getAttr name pkgs;
+          in
+          {
+            name = (if isInputs then "@" else "") + name;
+            value = go (
+              if isInputs then
+                {
+                  inherit (selected) packages;
+                  inputsFrom = selected.inputsFrom ++ [ pkg ];
+                }
+              else
+                {
+                  inherit (selected) inputsFrom;
+                  packages = selected.packages ++ [ pkg ];
+                }
+            );
+          }
+        ) names);
+
+      attrs = listToAttrs ((mkAttrs true) ++ (mkAttrs false));
+
+      drv = pkgs.mkShell {
+        inherit (selected) inputsFrom packages;
+        name = # build a label from inputsFrom
+          if (selected.inputsFrom == [ ]) then
+            "nix-quick-shell"
+          else
+            lib.concatStringsSep "-" (map (v: v.pname or v.name or "unknown") selected.inputsFrom);
+      };
+    in
+    drv.overrideAttrs {
+      passthru = attrs // {
+        _passthru = drv.passthru;
+      };
+    };
+in
+go {
+  inputsFrom = [ ];
+  packages = [ ];
+}