;;; nix-log.el -- run nix commands in Emacs -*- lexical-binding: t -*- ;; Author: Matthew Bauer ;; Homepage: https://github.com/NixOS/nix-mode ;; Keywords: nix ;; Version: 1.4.0 ;; This file is NOT part of GNU Emacs. ;;; Commentary: ;;; Code: (require 'nix) (require 'nix-search) (require 'nix-instantiate) (defun nix-log (file attr) "Open the nix log. FILE nix file to parse. ATTR attribute to load the log of." (interactive (list (nix-read-file) nil)) (unless attr (setq attr (nix-read-attr file))) (let* ((drv-file (nix-instantiate file attr)) (drv-name (progn (string-match (format "^%s/\\(.*\\)$" nix-store-dir) drv-file) (match-string 1 drv-file))) (log-file (format "%s/log/nix/drvs/%s/%s.bz2" nix-state-dir (substring drv-name 0 2) drv-name))) (if (file-exists-p log-file) (find-file log-file) (error "No log is available for derivation")))) (provide 'nix-log) ;;; nix-log.el ends here