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python.nix
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python.nix
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{ pkgs
, config
, lib
, ...
}:
with lib;
with builtins; let
cfg = config.vim.languages.python;
defaultServer = "pyright";
servers = {
pyright = {
package = [ "nodePackages" "pyright" ];
lspConfig = /* lua */ ''
lspconfig.pyright.setup{
capabilities = capabilities;
on_attach = default_on_attach;
cmd = {"${nvim.languages.commandOptToCmd cfg.lsp.package "pyright-langserver"}", "--stdio"};
}
'';
};
};
defaultFormat = "black";
formats = {
black = {
package = [ "black" ];
nullConfig = /* lua */ ''
table.insert(
ls_sources,
null_ls.builtins.formatting.black.with({
command = "${nvim.languages.commandOptToCmd cfg.format.package "black"}",
})
)
'';
};
};
in
{
options.vim.languages.python = {
enable = mkEnableOption "Python language support";
treesitter = {
enable = mkOption {
description = "Enable Python treesitter";
type = types.bool;
default = config.vim.languages.enableTreesitter;
};
package = nvim.options.mkGrammarOption pkgs "python";
};
lsp = {
enable = mkOption {
description = "Enable Python LSP support";
type = types.bool;
default = config.vim.languages.enableLSP;
};
server = mkOption {
description = "Python LSP server to use";
type = with types; enum (attrNames servers);
default = defaultServer;
};
package = nvim.options.mkCommandOption pkgs {
description = "Python LSP server";
inherit (servers.${cfg.lsp.server}) package;
};
};
format = {
enable = mkOption {
description = "Enable Python formatting";
type = types.bool;
default = config.vim.languages.enableFormat;
};
type = mkOption {
description = "Python formatter to use";
type = with types; enum (attrNames formats);
default = defaultFormat;
};
package = nvim.options.mkCommandOption pkgs {
description = "Python formatter";
inherit (formats.${cfg.format.type}) package;
};
};
};
config = mkIf cfg.enable (mkMerge [
(mkIf cfg.treesitter.enable {
vim.treesitter.enable = true;
vim.treesitter.grammars = [ cfg.treesitter.package ];
})
(mkIf cfg.lsp.enable {
vim.lsp.lspconfig.enable = true;
vim.lsp.lspconfig.sources.python-lsp = servers.${cfg.lsp.server}.lspConfig;
})
(mkIf cfg.format.enable {
vim.lsp.null-ls.enable = true;
vim.lsp.null-ls.sources.python-format = formats.${cfg.format.type}.nullConfig;
})
]);
}