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lib/plugins/mkVimPlugin: Support lazyloading #3927

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lib/plugins/mkVimPlugin: Support lazyloading #3927

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68 changes: 64 additions & 4 deletions lib/plugins/mk-vim-plugin.nix
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Original file line number Diff line number Diff line change
Expand Up @@ -59,26 +59,86 @@ let
options = lib.setAttrByPath loc (
{
enable = lib.mkEnableOption name;
lazyLoad = lib.nixvim.mkLazyLoadOption name;
autoLoad = lib.nixvim.mkAutoLoadOption cfg name;
}
// settingsOption
// extraOptions
);

config = lib.mkIf cfg.enable (
let
globalsConfig = lib.nixvim.applyPrefixToAttrs globalPrefix (cfg.settings or { });
in
lib.mkMerge [
{
inherit extraPackages extraPlugins;
globals = lib.nixvim.applyPrefixToAttrs globalPrefix (cfg.settings or { });
}
{ inherit extraPackages extraPlugins; }

(lib.mkIf cfg.lazyLoad.enable {
assertions = [
{
assertion = (isColorscheme && colorscheme != null) || cfg.lazyLoad.settings != { };
message = "You have enabled lazy loading for ${name} but have not provided any configuration.";
}
];

plugins.lz-n = {
plugins = [
(
{
# The packpath name is always the derivation name
__unkeyed-1 = lib.getName cfg.package;
# Use provided before, otherwise fallback to normal function wrapped globals config
before =
let
before = cfg.lazyLoad.settings.before or null;
default =
lib.mkIf
(
(lib.filterAttrs (
_: v:
!builtins.elem v [
[ ]
null
{ }
]
) globalsConfig) != { }
)
''
function()
local globals = ${lib.nixvim.toLuaObject globalsConfig}

for k,v in pairs(globals) do
vim.g[k] = v
end
end
'';
in
if (lib.isString before || lib.types.rawLua.check before) then before else default;
colorscheme = lib.mkIf isColorscheme (cfg.lazyLoad.settings.colorscheme or colorscheme);
}
// lib.removeAttrs cfg.lazyLoad.settings [
"before"
"colorscheme"
]
)
];
};
})

(lib.mkIf (!cfg.lazyLoad.enable) {
globals = globalsConfig;
})

(lib.optionalAttrs (isColorscheme && colorscheme != null) {
colorscheme = lib.mkDefault colorscheme;
})

(lib.optionalAttrs (args ? extraConfig) (
lib.nixvim.plugins.utils.applyExtraConfig {
inherit extraConfig cfg opts;
}
))

(lib.nixvim.plugins.utils.enableDependencies dependencies)
]
);
Expand Down