74 lines
2.8 KiB
EmacsLisp
74 lines
2.8 KiB
EmacsLisp
;;; development/nix.el -*- lexical-binding: t; -*-
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(use-package! nix-mode
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:mode "\\.nix\\'"
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:hook (nix-mode . lsp-deferred)
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:config
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;; Configure nil LSP server
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(after! lsp-mode
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(add-to-list 'lsp-language-id-configuration '(nix-mode . "nix"))
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(lsp-register-client
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(make-lsp-client :new-connection (lsp-stdio-connection "nil")
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:major-modes '(nix-mode)
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:server-id 'nil-ls
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:priority 0)))
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;; Function to check if we're in a nixpkgs repository
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(defun in-nixpkgs-repo-p ()
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(when-let ((root (or (locate-dominating-file default-directory ".git")
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(vc-root-dir))))
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(or (string-match-p "/nixpkgs/?$" root)
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(file-exists-p (expand-file-name "pkgs/top-level/all-packages.nix" root))
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(file-exists-p (expand-file-name ".nixpkgs-version.json" root)))))
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;; Set up format-all-mode to use our custom formatter selection
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(set-formatter! 'nixfmt
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'("nixfmt")
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:modes '(nix-mode))
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(set-formatter! 'alejandra
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'("alejandra" "--quiet")
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:modes '(nix-mode))
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;; Add hooks to handle all formatting scenarios
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(add-hook! 'nix-mode-hook
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;; Disable LSP formatting
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(setq-local +format-with-lsp nil)
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;; Set formatter for format-all-mode (+format/buffer)
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(setq-local +format-with
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(if (in-nixpkgs-repo-p)
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'nixfmt
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'alejandra))
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;; Handle format-on-save
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(when (bound-and-true-p format-all-mode)
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(format-all-mode -1))
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(add-hook! 'before-save-hook :local
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(when (eq major-mode 'nix-mode)
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(if (in-nixpkgs-repo-p)
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(format-all-buffer 'nixfmt)
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(format-all-buffer 'alejandra))))
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;; Override lsp-format-buffer
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(advice-add 'lsp-format-buffer :around
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(lambda (orig-fun &rest args)
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(if (eq major-mode 'nix-mode)
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(let ((fmt (if (in-nixpkgs-repo-p)
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(executable-find "nixfmt")
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(executable-find "alejandra"))))
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(when fmt
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(format-all-buffer (intern (file-name-nondirectory fmt)))))
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(apply orig-fun args))))))
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;; Enable format-on-save globally if desired
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(setq +format-on-save-enabled-modes '(nix-mode))
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(use-package! llvm-ts-mode
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:mode "\\.ll\\'" ; LLVM IR files
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:mode "\\.td\\'" ; TableGen files
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:hook (llvm-ts-mode . tree-sitter-mode))
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(after! tree-sitter
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(add-to-list 'tree-sitter-major-mode-language-alist '(llvm-ts-mode . llvm)))
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