hydra-module.nix: Fix setting the logo

Dependencies

• [2] ALLSLBFX Whoops
• [3] 7XOH2DGH hydra-module.nix: Give types to options
• [4] 25DXUDOJ hydra-module.nix: Remove the useWAL option
• [5] ZVGQP2SX hydra-module: Add a `logo' option.
• [6] D3MDJONY
• [7] BT6SNXUA Add an option to run the hydra server in debug mode
• [8] ZYEFL36Q Ported/merged properties from the TUD configuration's hydra-module
• [*] 4J33F22T hydra-module.nix: Make it possible to add extra config lines

Change contents

• replacement in hydra-module.nix at line 22
  [4.298]→[4.298:395](∅→∅)
  − { HYDRA_LOGO = if cfg.logo != null then cfg.logo else "";

  − HYDRA_TRACKER = cfg.tracker;
  [4.298]

  [2.0]
  + { HYDRA_TRACKER = cfg.tracker;
• edit in hydra-module.nix at line 29
  [4.537]

  [4.537]
  +
• replacement in hydra-module.nix at line 112
  [4.247]→[3.538:577](∅→∅)
  − type = types.nullOr types.str;
  [4.247]

  [4.247]
  + type = types.nullOr types.path;
• edit in hydra-module.nix at line 138
  [4.2592]

  [10.190]
  +
• edit in hydra-module.nix at line 145
  [10.373]

  [10.373]
  + ${optionalString (cfg.logo != null) ''

  + hydra_logo ${cfg.logo}

  + ''}