578ed1ba98
Moving all of my Emacs-related files into their own directory at the root of this repository.
56 lines
2.4 KiB
EmacsLisp
56 lines
2.4 KiB
EmacsLisp
;;; wpc-nix.el --- Nix support -*- lexical-binding: t -*-
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;; Author: William Carroll <wpcarro@gmail.com>
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;;; Commentary:
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;; Configuration to support working with Nix.
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Dependencies
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(prelude/assert (f-exists? "~/universe"))
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(prelude/assert (f-exists? "~/depot"))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Library
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; Code:
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(use-package nix-mode
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:mode "\\.nix\\'")
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(defun nix/sly-from-universe (attribute)
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"Start a Sly REPL configured with a Lisp matching a derivation
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from my monorepo.
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This function was taken from @tazjin's depot and adapted for my monorepo.
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The derivation invokes nix.buildLisp.sbclWith and is built
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asynchronously. The build output is included in the error
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thrown on build failures."
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(interactive "sAttribute: ")
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(lexical-let* ((outbuf (get-buffer-create (format "*universe-out/%s*" attribute)))
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(errbuf (get-buffer-create (format "*universe-errors/%s*" attribute)))
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(expression (format "let depot = import <depot> {}; universe = import <universe> {}; in depot.nix.buildLisp.sbclWith [ universe.%s ]" attribute))
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(command (list "nix-build" "-E" expression)))
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(message "Acquiring Lisp for <depot>.%s" attribute)
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(make-process :name (format "depot-nix-build/%s" attribute)
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:buffer outbuf
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:stderr errbuf
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:command command
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:sentinel
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(lambda (process event)
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(unwind-protect
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(pcase event
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("finished\n"
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(let* ((outpath (s-trim (with-current-buffer outbuf (buffer-string))))
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(lisp-path (s-concat outpath "/bin/sbcl")))
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(message "Acquired Lisp for <depot>.%s at %s" attribute lisp-path)
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(sly lisp-path)))
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(_ (with-current-buffer errbuf
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(error "Failed to build '%s':\n%s" attribute (buffer-string)))))
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(kill-buffer outbuf)
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(kill-buffer errbuf))))))
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(provide 'wpc-nix)
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;;; wpc-nix.el ends here
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