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neovim-flake/modules/plugins/languages/bash.nix

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{
config,
pkgs,
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lib,
...
}: let
inherit (builtins) attrNames;
inherit (lib.options) mkOption mkEnableOption literalExpression;
inherit (lib.modules) mkIf mkMerge;
inherit (lib.lists) isList;
inherit (lib.types) enum either package listOf str bool;
inherit (lib.nvim.languages) diagnosticsToLua;
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inherit (lib.nvim.types) diagnostics mkGrammarOption;
inherit (lib.nvim.lua) expToLua;
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cfg = config.vim.languages.bash;
defaultServer = "bash-ls";
servers = {
bash-ls = {
package = pkgs.bash-language-server;
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lspConfig = ''
lspconfig.bashls.setup{
capabilities = capabilities;
on_attach = default_on_attach;
cmd = ${
if isList cfg.lsp.package
then expToLua cfg.lsp.package
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else ''{"${cfg.lsp.package}/bin/bash-language-server", "start"}''
};
}
'';
};
};
defaultFormat = "shfmt";
formats = {
shfmt = {
package = pkgs.shfmt;
nullConfig = ''
table.insert(
ls_sources,
null_ls.builtins.formatting.shfmt.with({
command = "${pkgs.shfmt}/bin/shfmt",
})
)
'';
};
};
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defaultDiagnosticsProvider = ["shellcheck"];
diagnosticsProviders = {
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shellcheck = {
package = pkgs.shellcheck;
nullConfig = pkg: ''
table.insert(
ls_sources,
null_ls.builtins.diagnostics.shellcheck.with({
command = "${pkg}/bin/shellcheck",
diagnostics_format = "#{m} [#{c}]"
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})
)
'';
};
};
in {
options.vim.languages.bash = {
enable = mkEnableOption "Bash language support";
treesitter = {
enable = mkEnableOption "Bash treesitter" // {default = config.vim.languages.enableTreesitter;};
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package = mkGrammarOption pkgs "bash";
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};
lsp = {
enable = mkEnableOption "Enable Bash LSP support" // {default = config.vim.languages.enableLSP;};
server = mkOption {
description = "Bash LSP server to use";
type = enum (attrNames servers);
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default = defaultServer;
};
package = mkOption {
description = "bash-language-server package, or the command to run as a list of strings";
example = literalExpression ''[lib.getExe pkgs.nodePackages.bash-language-server "start"]'';
type = either package (listOf str);
default = pkgs.bash-language-server;
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};
};
format = {
enable = mkOption {
description = "Enable Bash formatting";
type = bool;
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default = config.vim.languages.enableFormat;
};
type = mkOption {
description = "Bash formatter to use";
type = enum (attrNames formats);
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default = defaultFormat;
};
package = mkOption {
description = "Bash formatter package";
type = package;
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default = formats.${cfg.format.type}.package;
};
};
extraDiagnostics = {
enable = mkEnableOption "extra Bash diagnostics" // {default = config.vim.languages.enableExtraDiagnostics;};
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types = diagnostics {
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langDesc = "Bash";
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inherit diagnosticsProviders;
inherit defaultDiagnosticsProvider;
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};
};
};
config = mkIf cfg.enable (mkMerge [
(mkIf cfg.treesitter.enable {
vim.treesitter.enable = true;
vim.treesitter.grammars = [cfg.treesitter.package];
})
(mkIf cfg.lsp.enable {
vim.lsp.lspconfig.enable = true;
vim.lsp.lspconfig.sources.bash-lsp = servers.${cfg.lsp.server}.lspConfig;
})
(mkIf cfg.format.enable {
vim.lsp.null-ls.enable = true;
vim.lsp.null-ls.sources.bash-format = formats.${cfg.format.type}.nullConfig;
})
(mkIf cfg.extraDiagnostics.enable {
vim.lsp.null-ls.enable = true;
vim.lsp.null-ls.sources = diagnosticsToLua {
lang = "bash";
config = cfg.extraDiagnostics.types;
inherit diagnosticsProviders;
};
})
]);
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}