Merge pull request #84129 from Infinisil/removing-python-from-grub

Support removing python from zfs/grub closure

pkgs/os-specific/linux/nfs-utils/default.nix

@@ -1,6 +1,7 @@
 { stdenv, fetchurl, fetchpatch, lib, pkgconfig, utillinux, libcap, libtirpc, libevent
 , sqlite, kerberos, kmod, libuuid, keyutils, lvm2, systemd, coreutils, tcp_wrappers
 , python3, buildPackages, nixosTests
+, enablePython ? true
 }:
 
 let
@@ -25,8 +26,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     libtirpc libcap libevent sqlite lvm2
     libuuid keyutils kerberos tcp_wrappers
-    python3
-  ];
+  ] ++ lib.optional enablePython python3;
 
   enableParallelBuilding = true;
 
@@ -96,6 +96,9 @@ stdenv.mkDerivation rec {
         -e "s,/sbin/modprobe,${kmod}/bin/modprobe,g" \
         -e "s,/usr/sbin,$out/bin,g" \
         $out/etc/systemd/system/*
+    '' + lib.optionalString (!enablePython) ''
+      # Remove all scripts that require python (currently mountstats and nfsiostat)
+      grep -l /usr/bin/python $out/bin/* | xargs -I {} rm -v {}
     '';
 
   # One test fails on mips.

pkgs/os-specific/linux/zfs/default.nix

@@ -12,6 +12,7 @@
 
 # Kernel dependencies
 , kernel ? null
+, enablePython ? true
 }:
 
 with stdenv.lib;
@@ -57,7 +58,12 @@ let
       '' + optionalString buildUser ''
         substituteInPlace ./lib/libzfs/libzfs_mount.c --replace "/bin/umount"             "${utillinux}/bin/umount" \
                                                       --replace "/bin/mount"              "${utillinux}/bin/mount"
-        substituteInPlace ./lib/libshare/nfs.c        --replace "/usr/sbin/exportfs"      "${nfs-utils}/bin/exportfs"
+        substituteInPlace ./lib/libshare/nfs.c        --replace "/usr/sbin/exportfs"      "${
+          # We don't *need* python support, but we set it like this to minimize closure size:
+          # If it's disabled by default, no need to enable it, even if we have python enabled
+          # And if it's enabled by default, only change that if we explicitly disable python to remove python from the closure
+          nfs-utils.override (old: { enablePython = old.enablePython or true && enablePython; })
+        }/bin/exportfs"
         substituteInPlace ./config/user-systemd.m4    --replace "/usr/lib/modules-load.d" "$out/etc/modules-load.d"
         substituteInPlace ./config/zfs-build.m4       --replace "\$sysconfdir/init.d"     "$out/etc/init.d"
         substituteInPlace ./etc/zfs/Makefile.am       --replace "\$(sysconfdir)"          "$out/etc"
@@ -92,7 +98,8 @@ let
       nativeBuildInputs = [ autoreconfHook nukeReferences ]
         ++ optionals buildKernel (kernel.moduleBuildDependencies ++ [ perl ]);
       buildInputs = optionals buildUser [ zlib libuuid attr ]
-        ++ optionals (buildUser) [ openssl python3 ]
+        ++ optional buildUser openssl
+        ++ optional (buildUser && enablePython) python3
         ++ optional stdenv.hostPlatform.isMusl libtirpc;
 
       # for zdb to get the rpath to libgcc_s, needed for pthread_cancel to work
@@ -102,7 +109,7 @@ let
 
       configureFlags = [
         "--with-config=${configFile}"
-        (withFeatureAs buildUser "python" python3.interpreter)
+        (withFeatureAs (buildUser && enablePython) "python" python3.interpreter)
       ] ++ optionals buildUser [
         "--with-dracutdir=$(out)/lib/dracut"
         "--with-udevdir=$(out)/lib/udev"

pkgs/top-level/all-packages.nix

@@ -16864,7 +16864,7 @@ in
 
     zenpower = callPackage ../os-specific/linux/zenpower { };
 
-    inherit (callPackage ../os-specific/linux/zfs {
+    inherit (callPackages ../os-specific/linux/zfs {
       configFile = "kernel";
       inherit kernel;
      }) zfsStable zfsUnstable;
@@ -17503,7 +17503,7 @@ in
 
   zenmonitor = callPackage ../os-specific/linux/zenmonitor { };
 
-  inherit (callPackage ../os-specific/linux/zfs {
+  inherit (callPackages ../os-specific/linux/zfs {
     configFile = "user";
   }) zfsStable zfsUnstable;