···

       
8
       
8
       
 
       
{

     

       
9
       
9
       
 
       
  options = {

     

       
10
       
10
       
 
       


     

       
11
       
11
       
+
       
    netboot.squashfsCompression = mkOption {

     

       
12
       
12
       
+
       
      default = with pkgs.stdenv.hostPlatform; "xz -Xdict-size 100% "

     

       
13
       
13
       
+
       
                + lib.optionalString isx86 "-Xbcj x86"

     

       
14
       
14
       
+
       
                # Untested but should also reduce size for these platforms

     

       
15
       
15
       
+
       
                + lib.optionalString isAarch "-Xbcj arm"

     

       
16
       
16
       
+
       
                + lib.optionalString (isPower && is32bit && isBigEndian) "-Xbcj powerpc"

     

       
17
       
17
       
+
       
                + lib.optionalString (isSparc) "-Xbcj sparc";

     

       
18
       
18
       
+
       
      description = lib.mdDoc ''

     

       
19
       
19
       
+
       
        Compression settings to use for the squashfs nix store.

     

       
20
       
20
       
+
       
      '';

     

       
21
       
21
       
+
       
      example = "zstd -Xcompression-level 6";

     

       
22
       
22
       
+
       
      type = types.str;

     

       
23
       
23
       
+
       
    };

     

       
24
       
24
       
+
       


     

       
11
       
25
       
 
       
    netboot.storeContents = mkOption {

     

       
12
       
26
       
 
       
      example = literalExpression "[ pkgs.stdenv ]";

     

       
13
       
27
       
 
       
      description = lib.mdDoc ''

     
···

       
77
       
91
       
 
       
    # Create the squashfs image that contains the Nix store.

     

       
78
       
92
       
 
       
    system.build.squashfsStore = pkgs.callPackage ../../../lib/make-squashfs.nix {

     

       
79
       
93
       
 
       
      storeContents = config.netboot.storeContents;

     

       
94
       
94
       
+
       
      comp = config.netboot.squashfsCompression;

     

       
80
       
95
       
 
       
    };

     

       
81
       
96
       
 
       


     

       
82
       
97